LeT 116C Jack-Up KFELS B-Class Jack-Up · PDF filelet 116c jack-up kfels b-class jack-up phase 2 benchmarking of iso 19905-1 report no: 709-j-io-rpt-001 ... 2.1 basic soil foundation

© 2010 Bennett & Associates, L.L.C.

LeT 116C Jack-Up KFELS B-Class Jack-Up

PHASE 2 BENCHMARKING OF ISO 19905-1

Report No: 709-J-IO-RPT-001

10/14/2011 1 Add requested clarification statement JV 11/22/2010 0 Issued for Client Use DH Date Rev. Description Prepared by

PREPARED FOR: ISO Benchmark Panel c/o Mr. John Stiff

PREPARED BY: Bennett & Associates 5177 Richmond Ave, Suite 1188 Houston, TX 77056

LeTourneau 116C and KeppelFELS B-Class Phase 2 Benchmarking of ISO 19905-1

709-J-IO-RPT-001 © 2010 Bennett & Associates, L.L.C.

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TABLE OF CONTENTS

1. EXECUTIVE SUMMARY ..............................................................................................1

2. INTRODUCTION AND METHODOLGY .....................................................................2

2.1 BASIC SOIL FOUNDATION CONDITIONS ............................................................... 2 2.2 DESCRIPTION OF THE KFELS B-CLASS JACK-UP ................................................ 2 2.3 DESCRIPTION OF THE LET 116C JACK-UP ............................................................. 3 2.4 ENVIRONMENTAL CRITERIA ................................................................................... 5 2.5 LEG STRUCTURE AND MATERIAL SPECIFICATION ........................................... 7 2.6 STRUCTURAL MODELLING .................................................................................... 11 2.7 CALCULATION OF LOADS....................................................................................... 14 2.8 DYNAMICS .................................................................................................................. 14 2.9 HULL SWAY EFFECTS .............................................................................................. 14

3. INTERMEDIATE ANALYSIS RESULTS AND COMMENTS ..................................16

3.1 HYDRODYNAMIC COEFFICIENTS ......................................................................... 16 3.2 WIND AREAS .............................................................................................................. 17 3.3 LEG PENETRATION AND FOUNDATION CAPACITY ......................................... 19

4. ALIGNMENT-POINTS RESULTS AND COMMENTS..............................................23

4.1 LEG DRAG COEFFICIENT......................................................................................... 23 4.2 HULL WIND AREAS................................................................................................... 24 4.3 FOUNDATION ANALYSIS ........................................................................................ 25 4.4 DAF CALCULATIONS................................................................................................ 26 4.5 FOOTING REACTIONS .............................................................................................. 28

5. ANALYSIS RESULTS FOR KFELS B-CLASS JACK-UP .........................................30

5.1 SAND CASE FOR KFELS B-CLASS JACK-UP ........................................................ 30 5.2 CLAY CASE FOR KFELS B-CLASS JACK-UP ........................................................ 33

6. ANALYSIS RESULTS FOR LET 116C JACK-UP ......................................................37

6.1 SAND CASE FOR LET 116C JACK-UP ..................................................................... 37 6.2 CLAY CASE FOR LET 116C JACK-UP ..................................................................... 40

7. CONCLUSIONS.............................................................................................................44

8. REFERENCES ...............................................................................................................45

APPENDIX A: KFELS B-CLASS Jack-up Hydrodynamic Coefficient Calculations............46

APPENDIX B: LET 116C Jack-Up Hydrodynamic Coefficient Calculations........................49

APPENDIX C: KFELS B-CLASS Jack-Up Partial Sacs Fem Listing...................................52

APPENDIX D: LET 116C Jack-Up Partial Sacs Fem Listing ...............................................55



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LIST OF TABLES

Table 1.1 – Overall Scope of Work.......................................................................................... 1 Table 2.1 – Clay Soil Properties............................................................................................... 2 Table 2.2 – Sand Soil Properties .............................................................................................. 2 Table 2.3 – KFELS B-Class Jack-up Principal Dimensions.................................................... 3 Table 2.4 – KFELS B-Class Jack-up Hull and Leg Weights ................................................... 3 Table 2.5 – LeT 116C Jack-up Principal Dimensions ............................................................. 4 Table 2.6 – LeT 116C Jack-up Hull and Leg Weights............................................................. 4 Table 2.7 – KFELS B-Class Jack-up Environmental Conditions ............................................ 5 Table 2.8 – LeT 116C Class Jack-up Environmental Conditions (Sand Case)....................... 5 Table 2.9 – LeT 116C Class Jack-up Environmental Conditions (Clay Case) ....................... 6 Table 2.10 – KFELS B-Class Jack-up Leg Member Minimum Yield Properties.................... 7 Table 2.11 – LeT 116C Class Jack-up Leg Member Minimum Yield Properties .................. 9 Table 3.1 – KFELS B-Class Jack-up Hydrodynamic Coefficients........................................ 16 Table 3.2 – LeT 116C Class Jack-up Hydrodynamic Coefficients....................................... 17 Table 3.3 – KFELS B-Class Jack-up Hull Wind Area........................................................... 17 Table 3.4 – LeT 116C Jack-up Hull Wind Area .................................................................... 18 Table 3.5 – LeT 116C Jack-up Hull Wind Area (GM’s Wind Area)..................................... 18 Table 3.6 – KFELS B-Class Jack-up Sand Case.................................................................... 19 Table 3.7 – KFELS B-Class Jack-up Clay Case .................................................................... 20 Table 3.8 – LeT 116C Jack-up Sand Case ............................................................................. 21 Table 3.9 – LeT 116C Jack-up Clay Case.............................................................................. 22 Table 4.1 – Leg Drag Coefficient (KFELS B-Class Jack-up)................................................ 23 Table 4.2 – Leg Drag Coefficient (LeT 116C Jack-up) ......................................................... 23 Table 4.3 – Hull Wind Areas (KFELS B-Class Jack-up) ...................................................... 24 Table 4.4 – Hull Wind Areas (LeT 116C Jack-up) ................................................................ 24 Table 4.5 – Penetration and Spudcan Fixities-Sand Case (KFELS B-Class Jack-up)........... 25 Table 4.6 – Penetration and Spudcan Fixities-Clay Case (KFELS B-Class Jack-up) ........... 25 Table 4.7 – Penetration and Spudcan Fixities-Sand Case (LeT 116C Jack-up) .................... 25 Table 4.8 – Penetration and Spudcan Fixities-Clay Case (LeT 116C Jack-up)..................... 26 Table 4.9 – DAF Calculations-Sand Case (KFELS B-Class Jack-up)................................... 26 Table 4.10 – DAF Calculations-Clay Case (KFELS B-Class Jack-up) ................................. 26 Table 4.11 – DAF Calculations (LeT 116C Jack-up) ............................................................ 27 Table 4.12 – Footing Reactions-Sand Case (KFELS B-Class Jack-up) ................................ 28 Table 4.13 – Footing Reactions-Clay Case (KFELS B-Class Jack-up)................................. 28 Table 4.14 – Footing Reactions-Sand Case (LeT 116C Jack-up) .......................................... 29 Table 4.15 – Footing Reactions-Clay Case (LeT 116C Jack-up) .......................................... 29 Table 5.1 – Environmental Loads .......................................................................................... 30 Table 5.2 – Global Footing Reactions.................................................................................... 30 Table 5.3 – Overturning Stability Checks.............................................................................. 31 Table 5.4 – Preload Capacity Check ...................................................................................... 31 Table 5.5 – Leg Member Strength Check .............................................................................. 31 Table 5.6 – Jacking System Strength Check .......................................................................... 32 Table 5.7 – Bearing Capacity/Sliding Utilizations (Sand Case) ............................................ 33 Table 5.8 – Environmental Loads .......................................................................................... 33 Table 5.9 – Global Footing Reactions.................................................................................... 34



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Table 5.10 – Overturning Stability Checks............................................................................ 34 Table 5.11 – Preload Capacity Check .................................................................................... 34 Table 5.12 – Leg Member Strength Check ............................................................................ 35 Table 5.13 – Jacking System Strength Check ........................................................................ 35 Table 5.14 – Bearing Capacity/Sliding Utilizations (Clay Case)........................................... 36 Table 6.1 – Environmental Loads .......................................................................................... 37 Table 6.2 – Global Footing Reactions.................................................................................... 37 Table 6.3 – Overturning Stability Checks.............................................................................. 38 Table 6.4 – Preload Capacity Check ...................................................................................... 38 Table 6.5 – Leg Member Strength Check .............................................................................. 38 Table 6.6 – Jacking System Strength Check .......................................................................... 39 Table 6.7 – Bearing Capacity/Sliding Utilizations (Sand Case) ............................................ 40 Table 6.8 – Environmental Loads .......................................................................................... 40 Table 6.9 – Global Footing Reactions.................................................................................... 41 Table 6.10 – Overturning Stability Checks............................................................................ 41 Table 6.11 – Preload Capacity Check .................................................................................... 41 Table 6.12 – Leg Member Strength Check ............................................................................ 42 Table 6.13 – Jacking System Strength Check ........................................................................ 42 Table 6.14 – Bearing Capacity/Sliding Utilizations (Clay Case)........................................... 43

LIST OF FIGURES

Figure 2.1 – KFELS B-Class Jack-up Leg Chord Section....................................................... 8 Figure 2.2 – LeT 116C Jack-up Leg Chord Section .............................................................. 10 Figure 2.3 – KFELS B-Class Jack-up SACS Finite Element Model..................................... 12 Figure 2.4 – LeT 116C Jack-up SACS Finite Element Model .............................................. 13 Figure 5.1 – Spudcan Foundation Bearing Capacity/Sliding Check ..................................... 32 Figure 5.2 – Spudcan Foundation Bearing Capacity/Sliding Check ..................................... 36 Figure 6.1 – Spudcan Foundation Bearing Capacity/Sliding Check ..................................... 39 Figure 6.2 – Spudcan Foundation Bearing Capacity/Sliding Check ..................................... 42



Page 1

1. EXECUTIVE SUMMARY

ISO 19905-1 “Petroleum and natural gas industries – Site-specific assessment of mobile

offshore units – Part 1: Jack-Ups” has been developed from SNAME bulletin 5-5A

(SNAME), but has undergone significant modification in structure, and some content change,

during its development. Before 19905-1 will be released as a Draft International Standard

(DIS), it will be necessary to ensure that the document is both complete and produces results

that would be expected. As a first step to achieving this, a three-phase scope of work has

been developed to give an overall understanding of the benchmarking process. The purpose

of the Phase 2 study is to undertake a complete quantitative check of ISO methodology to

verify that the results are in reasonable compliance with SNAME T&R 5-5A Rev. 3, and to

assess possible areas that may have room for misinterpretation

Four separate consultants are to study four different jack-ups, as shown in Table 1-1.

Company Rig 1 Standard Rig 2 Standard

Global Maritime

116C ISO & SNAME RGV ISO

GL Noble Denton

Keppel B-Class ISO & SNAME RGV ISO & SNAME

Bennett & Associates

Keppel B-Class ISO 116C ISO

GustoMSC CJ 62 ISO & SNAME -- --

Table 1.1 – Overall Scope of Work

The assessment has used adjusted leg-to-hull connection stiffness and other generic

parameters of KeppelFELS B-Class jackup units. The results presented herein are for the

purposes of benchmarking alone and are not representative of KeppelFELS B-Class jackup

units.

The work performed by Bennett & Associates (BASS) was as the secondary reviewer of the

proposed guidelines, with Global Maritime (GM) and GL Noble Denton having final say on

the various alignment points for the work on the 116C and the B-Class jack ups, respectively.



Page 2

2. INTRODUCTION AND METHODOLGY

2.1 BASIC SOIL FOUNDATION CONDITIONS

The sand and clay soil foundation cases provided by the Benchmarking Panel were

investigated for the jack-ups. The soil properties are tabulated in Table 2.1 and Table 2.2.

Clay Soil Properties Used for Foundation Analysis

Penetration (m)

Penetration (ft)

Unit Weight (kN/m3)

Unit Weight (lb/ft3)

Cu (kN/m2)

Cu (k/ft2) Cu (psi)

Shear Modulus, G (MPa)

G (k/ft2)

0.00 0.0 4.00 25 2.4 0.05 0.35 0 19.00 62.3 5.80 37 27.3 0.57 3.96 23.1 482 29.00 95.1 5.80 37 40.5 0.85 5.87 31.6 660 36.50 119.8 5.80 37 50.3 1.05 7.30 37.9 792 45.00 147.6 8.00 51 67.0 1.40 9.72 62.8 1312

Table 2.1 – Clay Soil Properties

Sand Soil Properties Used for Foundation Analysis γ’ 11 kN/m3 φ 34o δ 29o Relative density in sands 60% Water Content 22% Poisons Ratio 0.2 d50 0.095 mm d90 0.15 mm Shear modulus G 23765 * SQRT[Vswl / (101.3 * A)] kPa

Table 2.2 – Sand Soil Properties

2.2 DESCRIPTION OF THE KFELS B-CLASS JACK-UP

The KFELS B-Class jack-up has three triangular, tubular reversed ‘K’ trussed legs with split

tube, double-sided rack chords. The legs of the unit are guided through the hull by rigid

guide structures located at the base of the hull and at the top of the elevating system. The

unit has twelve (12) pinion gears per leg for elevating the hull. A Self-Positioning Fixation

System (SPFS) is used to support the unit when elevated.



Page 3

The principal dimensions of the KFELS B-Class jack-up are as given in the table below.

Length Overall 68.6 m

Breadth Overall 63.4 m

Depth of Hull (side) 7.8 m

Leg Length 157.6 m

Longitudinal Leg Spacing 39.3 m

Transverse Leg Spacing 43.3 m

Spudcan Diameter 13.9 m

Spudcan Height 5.8 m

Table 2.3 – KFELS B-Class Jack-up Principal Dimensions.

The weights used in the analysis were as follows:

Total Elevated Hull Weight 10,070 t

LCG1 (ft) 0.0

TCG2 (ft) 0.0

Total Leg Weight3 3,348 t

1. Longitudinal center of gravity (LCG) measured positive aft of center of legs. 2. Transverse center of gravity (TCG) measured from rig centerline, positive starboard. 3. 157.6 m total leg length.

Table 2.4 – KFELS B-Class Jack-up Hull and Leg Weights

2.3 DESCRIPTION OF THE LET 116C JACK-UP

The Atwood Vicksburg jack-up drilling unit has three four-chord, tubular ‘K’ trussed legs

with ‘tear-drop’ single-sided rack chords. The legs of the unit are guided through the hull by

rigid guide structures located at the base of the hull and at the top of the jack house. The unit

has sixteen (16) pinion gears per leg for elevating the hull.



Page 4

The principal dimensions of the LeT 116C unit are as given in the table below.

Length Overall 74.1 m

Breadth Overall 62.8 m

Depth of Hull (side) 7.9 m

Leg Length for Sand Case 104.5 m

Leg Length for Clay Case 145.4 m

Longitudinal Leg Spacing 39.3 m

Transverse Leg Spacing 43.3 m

Spudcan Diameter 14.0 m

Spudcan Height 7.3 m

Table 2.5 – LeT 116C Jack-up Principal Dimensions

The weights used in the analysis were as follows:

Total Elevated Hull Weight 6,396 t

LCG1 (ft) 0.0

TCG2 (ft) 0.0

Total Leg Weight3 3,284 t

1. Longitudinal center of gravity (LCG) measured positive aft of center of legs. 2. Transverse center of gravity (TCG) measured from rig centerline, positive starboard. 3. 145.4 m total leg length.

Table 2.6 – LeT 116C Jack-up Hull and Leg Weights



Page 5

2.4 ENVIRONMENTAL CRITERIA

Environmental extremes for sand and clay cases are as follows:

Case Sand Clay

Water Depth (m) 106.7 70

Hmax (m) 13.1 16.8

Tass (s) 11.7 13.3

Hs (m) 7 9

Tp (s) 13 14.7

Current (m/s) 0 0

Storm surge and tide (m) 4.6 4.6

Wind Speed (m/s) 51.4 51.4

Airgap (m) 15.2 15.2

Table 2.7 – KFELS B-Class Jack-up Environmental Conditions

Case Sand

Water Depth (m) 64.0

Hmax (m) 16.7

Tass (s) 12.1

Hs (m) 9.0

Tp (s) 13.1

Surface Current (m/s) 1.50

Mid-depth Current (m/s) 1.50

75% Below Surface Current (m/s) 1.40

1 m above seabed Current (m/s) 0.9

Storm surge and tide (m) 21.0

Wind Speed (m/s) 35.0

Airgap (m) 20.1

Table 2.8 – LeT 116C Class Jack-up Environmental Conditions (Sand Case)



Page 6

Case Clay

Water Depth (m) 76.2

Hmax (m) 11.3

Tass (s) 10.0

Hs (m) 6.4

Tp (s) 11.1

Surface Current (m/s) 0.75

Mid-depth Current (m/s) 0.69

Bottom Current (m/s) 0.64

Storm surge and tide (m) 2.5

Wind Speed (m/s) 31.4

Airgap (m) 18.9

Table 2.9 – LeT 116C Class Jack-up Environmental Conditions (Clay Case)



Page 7

2.5 LEG STRUCTURE AND MATERIAL SPECIFICATION

The design minimum yield stress values of the legs for KFELS B-Class Jack-up are

as follows:

Item Dimensions Yield Stress (ksi)

Chord (tube and rack) See Figure 2.1 100

Diagonal and Horizontal Brace Member

85/8” O.D. 1.5” w.t. pipe up to 162.1 ft above can tip.

85/8” O.D. 1.25” w.t. pipe above 162.1 ft.

65

Diagonal and Horizontal Brace Member

85/8” O.D. 1.25” w.t. pipe up to 162.1 ft above can tip.

85/8” O.D. 1.0” w.t. pipe above 162.1 ft.

65

Internal Span Breaker 63/8” O.D. 0.432” w.t. pipe 35

Table 2.10 – KFELS B-Class Jack-up Leg Member Minimum Yield Properties



Page 8

Figure 2.1 – KFELS B-Class Jack-up Leg Chord Section

Area = 187.89 in2 I major = 5,50.89 in4 I minor = 3,03.41 in4



Page 9

The design minimum yield stress values of the legs for LeT 116C Class Jack-up are

as follows:

Item Dimensions Yield Stress (ksi)

Chord Back Plate

Chord Side Plate

Chord Rack

See Figure 2.2

70

70

70

Horizontal Braces

12.75” O.D. x 1.00” w.t. Pipe

up to 142 ft above can tip

12.75” O.D. x 0.50” w.t. Pipe from 142 ft to 175.55 ft

12.75” O.D. x 0.75” w.t. Pipe from 175.55 ft to 343.3 ft


85

Diagonal Braces

12.75” O.D. x 1.00” w.t. Pipe

up to 142 ft above can tip

12.75” O.D. x 0.50” w.t. Pipe from 142 ft to 175.55 ft



85

Internal Span Breaker 9” O.D. x 0.375” w.t. Pipe 85

Table 2.11 – LeT 116C Class Jack-up Leg Member Minimum Yield Properties



Page 10

Figure 2.2 – LeT 116C Jack-up Leg Chord Section



Page 11

2.6 STRUCTURAL MODELLING

The global and detailed response of the unit under static and environmental loads was

evaluated by performing a detailed Finite Element analysis of the structure and foundation.

The capacity of the unit was assessed based on Ultimate Limit State methodology as

described in the ISO 19905-1, (i.e., factored loads and factored ultimate capacities). The

effects of hull side-sway (P-delta) and dynamic amplification were included in the analysis.

A detailed structural model of the leg and of the surrounding supporting structure was made

using SACS finite element software. The assumptions made in the Finite Element (FE)

structural modeling are described below.

The leg chords were modeled by beam elements with appropriate shear and bending properties. The axial stiffness contribution of the rack teeth was ignored in the strength assessment; however, 10% of the rack tooth area was assumed in the global response calculation. Braces were also modeled as tubular beam elements.

The jack frame was modeled by beam elements with appropriate section properties.

The leg guides were modeled by spring elements with freedoms in the appropriate directions

giving reaction forces corresponding to guides reacting against the rack teeth.

For LeT 116C Jack-up the pinions were modelled in a similar fashion giving the appropriate

restraint and stiffness.

For KFELS B-Class Jack-up the Self-Positioning Fixation Systems (SPFS) were modeled in

a similar fashion giving the appropriate restraint and stiffness. Figure 2.3 shows the KFELS

B-Class Jack-up SACS Finite Element model. Figure 2.4 shows the LeT 116C Jack-up

SACS Finite Element model.



Page 12

Figure 2.3 – KFELS B-Class Jack-up SACS Finite Element Model



Page 13

Figure 2.4 – LeT 116C Jack-up SACS Finite Element Model



Page 14

2.7 CALCULATION OF LOADS

Wave and current loadings at each storm heading were automatically computed using the

SEASTATE Program of the SACS finite element analysis software.

Forces were computed using Morison’s equation and wave particle kinematics based on

Stokes Fifth Order Wave Theory. Wind forces were computed using the formulae and

coefficients given in the ISO 19905-1. The wave and current forces were factored by the

kinematics and blockage factors.

Benchmark Panel instructed that the wave kinematics/spreading reduction factor (Hdet to

Hmax) of 0.86 was to be used for all the cases. To account for blockage effects of the leg, a

current blockage factor has been derived in accordance with the ISO 19905-1. An average

blockage factor (i.e., reduction in current velocity) of 0.91 was used for KFELS B-Class

Jack-up and 0.77 for LeT 116C Jack-up.

2.8 DYNAMICS

The inertial loadset is derived from random wave time domain dynamic analysis; two DAF's

are calculated, one for the base shear (BS) and one for the overturning moment (OTM). The

applied inertial loadset included the inertial base shear and the inertial overturning moment.

This is accomplished by a combination of lateral force acting on the hull VCG level and

correcting moment applied as a couple to the hull. 80% of initial foundation fixity was

included in the random wave time domain dynamic analysis.

2.9 HULL SWAY EFFECTS

The combination of vertical (gravity) loads and the side sway of the hull result in a secondary

bending moment (P-delta moment), which is also included in the SACS analysis. The P-

delta moment increases both the vertical footing reaction (due to increased overturning

moment) and the moment at the lower guide due to the offset of the footing induced by hull

sway.



Page 15

P-delta effects are included as follows:

P-delta Moment = Hull Weight Lateral Hull Displacement

The P-delta force is applied at the hull VCG level, giving the correct overturning moment

and lower guide bending moment. This force is calculated as follows:

P-delta Force = VCGhulltofootingfromcetanDis

MomentdeltaP

Point loads were added to the hull structure to give the correct hull weight and center of

gravity. The analysis was run twice, first to calculate the hull sway, and then repeated

including the additional overturning moments due to hull sway.



Page 16

3. INTERMEDIATE ANALYSIS RESULTS AND COMMENTS

3.1 HYDRODYNAMIC COEFFICIENTS

For all the storm cases, the hydrodynamic coefficients were calculated for the legs in

accordance with the methodology described in the ISO 19905-1. The legs were assumed to

have a marine growth level of 12.5 mm (thickness). Rough and smooth tubular members

were assumed to have drag coefficients of 1.0 and 0.65 respectively.

Rough members and marine growth extends below MSL+2 m and smooth clean members are

assumed above.

The resulting drag coefficients are presented in Table 3.1 and 3.2. Note that the heading

directions are defined as counter clockwise. A 0 degree heading is taken as from stern to

bow.

Flow Direction (00 is flow on Apex)

Rough CdD (m) (below MSL+2 m)

Smooth CdD (m) (above MSL+2 m)

00 4.562 3.201

300 4.655 3.305

600 4.562 3.201

900 4.655 3.305

1200 4.562 3.201

1500 4.655 3.305

1800 4.562 3.201

CmD2 (m2) all flow directions 3.988 3.637

Table 3.1 – KFELS B-Class Jack-up Hydrodynamic Coefficients



Page 17

Flow Direction

(00 is flow on Apex) Rough CdD (m)

(below MSL+2 m) Smooth CdD (m) (above MSL+2 m)

00 10.829 9.188

300 9.961 8.486

600 9.961 8.486

900 10.829 9.188

1200 9.961 8.486

1500 9.961 8.486

1800 9.914 9.188

CmD2 (m2) all flow directions 9.282 8.968

Table 3.2 – LeT 116C Class Jack-up Hydrodynamic Coefficients

3.2 WIND AREAS

The hull wind areas with center of effort, given in Table 3.3 and Table 3.4 below, were

calculated as specified in the ISO 19905-1. Note that all areas include the shape coefficients.

The center of effort values are reported relative to the keel. The heading directions are

defined as counter clockwise. A 0 degree heading is taken as from stern to bow.

Heading (degree)

Area (m2) C of E (m)

0 2,186 21.03 30 2,048 21.64 60 1,842 22.1 90 1,946 20.57 120 2,077 19.81 150 1,921 21.49 180 1,781 23.47

Table 3.3 – KFELS B-Class Jack-up Hull Wind Area



Page 18

Heading (degree)

Area (m2) C of E (m)

0 1,401 15.03 30 1,341 15.46 60 1,331 15.38 90 1,455 14.37 120 1,528 13.83 150 1,438 14.35 180 1,359 15.02

Table 3.4 – LeT 116C Jack-up Hull Wind Area

Bennett & Associates (BASS) and Global Maritime (GM) agreed to use GM’s hull wind

area, which was based on wind test, for this analysis. Global Maritime’s hull wind areas are

given in Table 3.5. All areas include the shape coefficients. The centers of effort (C of E) are

reported relative to the keel. A 0o heading is taken as bow-on, a 90o heading as port-on, etc.

Example of Area ID description: For example, area A1 is the hull wind area and area A2 is

the wind area for the drill package.

Heading (deg)

Area ID Area Cs

(ft2) C of E

(ft)

A1 11,248 36.9 0

A2 1,723 148.2

B1 9,688 35.9 30

B2 3,867 105.1

C1 9,494 33.4 60

C2 3,642 103.3

D1 9,139 30.2 90

D2 3,146 100.1 E1 8,956 34.6

120 E2 3,580 104.8 F1 9,386 37.7

150 F2 4,024 103.1 G1 9,214 34.5

180 G2 3,250 101.7

Table 3.5 – LeT 116C Jack-up Hull Wind Area (GM’s Wind Area)



Page 19

3.3 LEG PENETRATION AND FOUNDATION CAPACITY

The penetrations and foundation capacities, given in Table 3.6 to Table 3.9 below, were

calculated as specified in the ISO 19905-1.

Preload footing reaction, VL 7,143 t Spudcan area, A 152.4 m2 Spudcan volume, V 353.3 m3

Rig Physical attributes

Tip to max. area length 2.23 m Penetration Tip penetration depth 1.95 m

Laterally projected area, As 6.3 m Interface friction angle, 25 deg.

V-H Envelope Calculation

Utilisation origin 0,5QV/R,VH 3.106 t G 51,080 kPa Poisson ratio, v 0.2 Kd1 1.00 Kd2 1.00 Kd3 1.00 K1 140,473 t/m K2 133,190 t/m

Spudcan fixities

K3 2,724,577 t-m/rad Vertical capacity, Qv 7,143 t Horizontal capacity, QH 857 t Foundation capacity Moment capacity, QM 5,779 t-m

Table 3.6 – KFELS B-Class Jack-up Sand Case



Page 20



Tip to max. area length 2.23 m Backfill 1,532 t Hcav 4.3 m Penetration Tip penetration depth 34.1 m Laterally projected area, As 43.7 m2 Su at max area, Suo 44.2 kPa Su at spudcan tip (Su,l) 47.1 kPa Utilisation origin 0,5QV/R,VH 3,772 t

Qvnet 6,062 t a 0.91


b 0.289 Depth used to determine G 33.6 m G 35.7 MPa OCR 1.0 Poisson ratio, v 0.5 Kd1 2.00 Kd2 2.06 Kd3 2.41 K1 405,952 t/m K2 279,138 t/m

Spudcan fixities

K3 15,837,345 t-m/rad Vertical capacity, Qv 8,675 t Horizontal capacity, QH 2,195 t Foundation capacity Moment capacity, QM 12,863 t-m

Table 3.7 – KFELS B-Class Jack-up Clay Case



Page 21



Tip to max. area length 3.2 m Penetration Tip penetration depth 2.7 m

Laterally projected area, As 8.5 m Interface friction angle, 25 deg.


Utilisation origin 0,5QV/R,VH 2,281 t G 47356 kPa Poisson ratio, v 0.2 Kd1 1.00 Kd2 1.00 Kd3 1.00 K1 117,382 t/m K2 111,296 t/m

Spudcan fixities

K3 1,849,533 t-m/rad Vertical capacity, Qv 5,245 t Horizontal capacity, QH 629 t Foundation capacity Moment capacity, QM 3,825 t-m

Table 3.8 – LeT 116C Jack-up Sand Case



Page 22



Tip to max. area length 3.2 m Backfill 885 t Hcav 3.4 m Penetration Tip penetration depth 28.8 m Laterally projected area, As 50.4 m2 Su at max area, Suo 36 kPa Su at spudcan tip (Su,l) 40 kPa Utilisation origin 0,5QV/R,VH 2,650 t

Qvnet 4,728 t a 0.76


b 0.29 Depth used to determine G 27.6 m G 30.4 MPa OCR 1.0 Poisson ratio, v 0.5 Kd1 1.97 Kd2 2.05 Kd3 2.40 K1 330,481 t/m K2 228,950 t/m

Spudcan fixities

K3 12,278,036 t-m/rad Vertical capacity, Qv 6,094 t Horizontal capacity, QH 1,774 t Foundation capacity Moment capacity, QM 9,216 t-m

Table 3.9 – LeT 116C Jack-up Clay Case



Page 23

4. ALIGNMENT-POINTS RESULTS AND COMMENTS

4.1 LEG DRAG COEFFICIENT

Company Bennett and

Associates(BASS) Noble Denton

(ND) % Difference

Item CD*D (m) CM.D2 (m

2) CD*D (m)

CM.D2

(m2) CD*D CM.D2

Rough 4.61 3.99 5.189 4.313 1.13 1.08

Smooth 3.26 3.64 3.657 4.056 1.12 1.12

Table 4.1 – Leg Drag Coefficient (KFELS B-Class Jack-up)

Company Bennett and

Associates(BASS) Global

Maritime(GM) % Difference

Item CD*D (m) CM.D2 (m

2) CD*D (m)

CM.D2

(m2) CD*D CM.D2

Rough 10.27 9.28 11.00 11.40 1.07 1.23

Smooth 8.74 8.97 8.93 10.70 1.02 1.19

Table 4.2 – Leg Drag Coefficient (LeT 116C Jack-up)

For LeT 116C Jack-up, in BASS calculation, the marine growth was ignored on gussets and

chord. In GM calculation, the marine growth was included on gussets and chord. GM agreed

to use the BASS calculated leg drag coefficient.



Page 24

4.2 HULL WIND AREAS

Bennett and Associates(BASS)

Noble Denton(ND)

Heading (deg.) Area (m2) C of E (m)

Area (m2)

C of E (m)

% Difference of Wind Area

0 2186 21.0 1680 21.8 0.77 30 2048 21.6 1917 21.0 0.94

60 1842 22.1 2024 20.0 1.10

90 1946 20.6 1932 20.3 0.99 120 2077 19.8 2024 20.0 0.97

150 1921 21.5 1917 21.0 1.00

180 1781 23.5 1680 21.8 0.94

Table 4.3 – Hull Wind Areas (KFELS B-Class Jack-up)

For LeT 116C Jack-up, BASS's hull wind area was calculated using the projected area

resulting from the wind direction being analyzed. GM's hull wind area analysis utilized a

linear profile based on 116C wind testing results. BASS agreed to use the GM's hull wind

area for this analysis. GM's LeT 116C Jack-up hull wind areas are shown below.

Heading (deg)

Area ID Area Cs

(ft2) C of E

(ft)

A1 11,248 36.9 0

A2 1,723 148.2

B1 9,688 35.9 30

B2 3,867 105.1

C1 9,494 33.4 60

C2 3,642 103.3

D1 9,139 30.2 90

D2 3,146 100.1 E1 8,956 34.6

120 E2 3,580 104.8 F1 9,386 37.7

150 F2 4,024 103.1 G1 9,214 34.5

180 G2 3,250 101.7

Table 4.4 – Hull Wind Areas (LeT 116C Jack-up)



Page 25

4.3 FOUNDATION ANALYSIS

Sand Case BASS ND %

Difference

Penetration (m) 1.95 1.95 1.00

Spudcan fixities K1 (t/m) 140,473 140,379 1.00


Spudcan fixities K3 (t/m) 2,724,577 2,724,228 1.00

Table 4.5 – Penetration and Spudcan Fixities-Sand Case (KFELS B-Class Jack-up)

Clay Case BASS ND %

Difference





Table 4.6 – Penetration and Spudcan Fixities-Clay Case (KFELS B-Class Jack-up)

Sand Case BASS GM %

Difference





Table 4.7 – Penetration and Spudcan Fixities-Sand Case (LeT 116C Jack-up)



Page 26

Clay Case BASS GM %

Difference





Table 4.8 – Penetration and Spudcan Fixities-Clay Case (LeT 116C Jack-up)

4.4 DAF CALCULATIONS

Item BASS ND % Difference

BS DAF(60 deg.) 1.58 1.73 0.91

OTM DAF(60 deg.) 1.86 2.08 0.89

BS DAF(90 deg.) 1.55 1.69 0.91

OTM DAF(90 deg.) 1.81 2.04 0.89

BS DAF(120 deg.) 1.58 1.66 0.95

OTM DAF(120 deg.) 1.91 1.99 0.96

Table 4.9 – DAF Calculations-Sand Case (KFELS B-Class Jack-up)

Item BASS ND % Difference

BS DAF(60 deg.) 1.58 1.73 0.91

OTM DAF(60 deg.) 1.86 2.08 0.89

BS DAF(90 deg.) 1.55 1.69 0.91

OTM DAF(90 deg.) 1.81 2.04 0.89

BS DAF(120 deg.) 1.58 1.66 0.95

OTM DAF(120 deg.) 1.91 1.99 0.96

Table 4.10 – DAF Calculations-Clay Case (KFELS B-Class Jack-up)

BASS agreed to use the ND's DAF values for this analysis.



Page 27

Item BASS GM % Difference

BS DAF (Sand) 1.05 1.24 0.85

OTM DAF (Sand) 1.12 1.40 0.80

BS DAF (Clay) 1.16 1.14 1.02

OTM DAF (Clay) 1.27 1.35 0.94

Table 4.11 – DAF Calculations (LeT 116C Jack-up)

BASS agreed to use the GM's DAF values for this analysis.



Page 28

4.5 FOOTING REACTIONS

BASS ND BASS

ND BASS

ND BASS

ND

Hea

ding

(d

eg) Leg Fh (t) Fv (t) M (t-m) Fh (t) Fv (t) M (t-m) Fh Fv M

Bow 263 5,687 3,301 258 5,723 5,137 1.02 0.99 0.64

Stbd 254 1,453 3,325 282 1,320 3,021 0.9 1.1 1.1 60

Port 252 5,781 3,127 260 5,822 4,855 0.97 0.99 0.64

Bow 276 4,309 5,194 286 4,291 6,210 0.97 1 0.84

Stbd 265 1,809 4,042 296 1,615 3,624 0.89 1.12 1.12 90

Port 228 6,803 0 213 6,958 171 1.07 0.98 0

Bow 283 2,923 5,239 296 2,799 5,165 0.95 1.04 1.01

Stbd 272 2,827 5,211 300 2,692 5,074 0.91 1.05 1.03 120

Port 226 7,171 0 213 7,372 21 1.06 0.97 0

Table 4.12 – Footing Reactions-Sand Case (KFELS B-Class Jack-up)

BASS ND BASS

ND BASS

ND BASS

ND

Hea

ding

(d

eg) Leg Fh (t) Fv (t) M (t-m) Fh (t) Fv (t) M (t-m) Fh Fv M

Bow 296 5,311 12,126 296 5,434 10,371 1 0.98 1.17

Stbd 294 2,239 12,914 341 1,924 14,046 0.86 1.16 0.92 60

Port 287 5,381 12,015 300 5,520 10,115 0.96 0.97 1.19

Bow 312 4,311 13,651 327 4,290 12,773 0.95 1 1.07

Stbd 300 2,492 13,326 343 2,204 14,057 0.88 1.13 0.95 90

Port 263 6,129 9618 264 6,386 6590 0.99 0.96 1.46

Bow 319 3,284 13,886 346 3,099 13,926 0.92 1.06 1

Stbd 311 3,210 13,852 350 3,019 13,968 0.89 1.06 0.99 120

Port 254 6,438 8194 243 6,759 3600 1.04 0.95 2.28

Table 4.13 – Footing Reactions-Clay Case (KFELS B-Class Jack-up)



Page 29

BASS ND BASS

GM BASS

GM BASS

GM H

eadi

ng

(deg

) Leg Fh (kN) Fv (kN) M (kN-m) Fh (kN) Fv (kN) M (kN-m) Fh Fv M

Bow 6,009 42,531 0 5,572 42,705 0 1.08 1 -

Stbd 5,592 -4,628 0 6,065 -4,502 0 0.92 1.03 - 60

Port 6,008 43,651 0 5,529 43,867 0 1.09 1 -

Bow 6,489 27,186 0 6,334 27,308 0 1.02 1 -

Stbd 5,659 -640 0 6,015 -614 0 0.94 1.04 - 90

Port 5,589 55,009 0 4,924 55,377 0 1.14 0.99 -

Bow 6,193 11,477 0 6,324 11,599 0 0.98 0.99 -

Stbd 6,200 10,326 0 6,315 10,450 0 0.98 0.99 - 120

Port 5,601 59,752 0 4,865 60,027 40 1.15 1 -

Table 4.14 – Footing Reactions-Sand Case (LeT 116C Jack-up)

BASS ND BASS

GM BASS

GM BASS

GM

Hea

ding

(d

eg) Leg Fh (kN) Fv (kN) M (kN-m) Fh (kN) Fv (kN) M (kN-m) Fh Fv M

Bow 1,920 33,972 82,919 125 33,422 96,902 15.36 1.02 0.86

Stbd 1,653 17,878 84,816 249 22,053 96,075 6.64 0.81 0.88 60

Port 1,913 34,269 82,660 126 33,637 96,902 15.18 1.02 0.85

Bow 2,140 28,691 88,419 182 29,712 97,983 11.76 0.97 0.9

Stbd 1,825 19,083 85,828 144 22,829 97,252 12.67 0.84 0.88 90

Port 1,683 38,346 74800 169 36,592 97533 9.96 1.05 0.77

Bow 2,174 22,461 88,458 72 25,417 103,357 30.19 0.88 0.86

Stbd 2,157 22,092 88,409 63 25,070 103,332 34.24 0.88 0.86 120

Port 1,751 41,568 66085 133 38,654 103470 13.17 1.08 0.64

Table 4.15 – Footing Reactions-Clay Case (LeT 116C Jack-up)



Page 30

5. ANALYSIS RESULTS FOR KFELS B-CLASS JACK-UP

5.1 SAND CASE FOR KFELS B-CLASS JACK-UP

The environmental base shears & overturning moments for the critical headings are given in

Table 5.1. The OTMs are given about the pinpoint.

Wave / Current Wind Inertia P-Delta Total Storm Heading (deg)

BS KN

OTM KN-m

BS KN

OTM KN-m

BS KN

OTM KN-m

OTM KN-m

BS KN OTM KN-m

60 5,318 757,273 1,293 124,228 944 134,167 141,887 7,554 1,157,555

90 5,211 743,563 1,377 132,097 950 137,381 141,887 7,537 1,154,928

120 5,318 757,273 1,414 134,770 933 133,422 142,497 7,664 1,167,962

Table 5.1 – Environmental Loads

The results of the global non-linear analysis, showing footing reactions, are below.

BS Vertical Moment Storm heading (deg)

Leg ID t t t-m

Bow 263 5,687 3,301

Stbd 254 1,453 3,325 60

Port 252 5,781 3,127

Bow 276 4,309 5,194

Stbd 265 1,809 4,042 90

Port 228 6,803 0

Bow 283 2,923 5,239

Stbd 272 2,827 5,211 120

Port 226 7,171 0

Table 5.2 – Global Footing Reactions



Page 31

The critical storm heading for overturning stability was determined to be 60o. The

overturning stability check was based on a hull weight of 10,070 t. The table below

summarises the overturning stability check. A resistance factor of 1.05 has been applied.

Table 5.3 – Overturning Stability Checks

The storm loading direction giving the largest storm footing reaction was found to be 120o. A

resistance factor of 1.10 has been applied.

Maximum Storm Vertical Footing Reaction (KN) 70,322 Factored Preload Capacity at Footing (KN) 63,682 Preload UC 1.10

Table 5.4 – Preload Capacity Check

Leg member strength checks (chords and braces) were performed in accordance with

ISO/DIS 19905-1. Leg strength UC’s are given below.

UC Heading/Leg

Leg - Chords 0.86 90o / Port

Leg – Diagonal and Horizontal Braces 0.42 90o / Port

Table 5.5 – Leg Member Strength Check

Total OTM (KN-m) 1,157,555 Total Factored Righting Moment (KN-m ) 1,463,045 Overturning Stability UC 0.79



Page 32

The critical storm loading direction for jacking system strength was found to be 120o for the

port leg. The check was based on a factored ultimate capacity of 15,502 kips (68,956 KN).

Maximum SPFS Storm Vertical Load (KN) 44,799

Factored SPFS Ultimate Capacity (KN) 68,956

Jacking System UC 0.65

Table 5.6 – Jacking System Strength Check

Each spudcan foundation bearing capacity/sliding check and utilizations are given below.

Bearing Capacity Envelope

Origin

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

0 100 200 300 400 500 600 700 800 900 1,000

Horizontal Capacity (tonnes)

Ve

rtic

al C

ap

ac

ity

(to

nn

es

)

Unfactored Load CapacityFactored Load CapacityFactored Sliding CapacityUnfactored Sliding CapacityBow Footing ReactionsSTBD Footing ReactionsPort Footing ReactionOriginCapacity Vector for Bow LegCapacity Vector for STBD LegCapacity Vector for Port Leg

Figure 5.1 – Spudcan Foundation Bearing Capacity/Sliding Check



Page 33

Leg Bow STBD Port

Magnitude of Capacity Vector 2528 t 2229 t 2772 t

Magnitude of Force Vector 2595 t 1673 t 4071 t

UC 1.03 0.75 1.47

Table 5.7 – Bearing Capacity/Sliding Utilizations (Sand Case)

5.2 CLAY CASE FOR KFELS B-CLASS JACK-UP




BS KN

OTM KN-m

BS KN

OTM KN-m

BS KN

OTM KN-m

OTM KN-m

BS KN

OTM KN-m

60 2,521 217,875 5,479 745,047 605 82,792 86,236 8,605 1,131,951

90 2,606 224,983 5,372 732,030 599 83,244 88,584 8,578 1,128,842

120 2,607 225,696 5,479 745,047 574 78,994 91,988 8,660 1,141,725




Page 34

The results of the global non-linear analysis, showing footing reactions, are given below.


Leg ID (t) (t) (t-m)

Bow 296 5,311 12,126

Stbd 294 2,239 12,914 60

Port 287 5,381 12,015

Bow 312 4,311 13,651

Stbd 300 2,492 13,326 90

Port 263 6,129 9,618

Bow 319 3,284 13,886

Stbd 311 3,210 13,852 120

Port 254 6,438 8,194





Table 5.10 – Overturning Stability Checks.








Page 35



UC Heading/Leg





Port leg. The check was based on a factored ultimate capacity of 15,502 kips (68,956 KN).

Maximum SPFS Storm Vertical Load (KN) 34,563

Factored SPFS Ultimate Capacity (KN) 68,956





Page 36

Each spudcan foundation bearing capacity/sliding check and utilizations are given below.


Origin

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

0 500 1,000 1,500 2,000 2,500 3,000


Ve

rtic

al C

ap

ac

ity

(to

nn

es

)

Unfactored Load CapacityFactored Load CapacityFactored Sliding CapacityUnfactored Sliding CapacityBow Footing ReactionsSTBD Footing ReactionsPort Footing ReactionOriginCapacity Vector for Bow Leg Capacity Vector for STBD LegCapacity Vector for Port Leg


Leg Bow STBD Port

Magnitude of Capacity Vector 3,731 t 1,407 t 3,755 t

Magnitude of Force Vector 3,085 t 294 t 4,206 t

UC 0.83 0.21 1.12

Table 5.14 – Bearing Capacity/Sliding Utilizations (Clay Case)



Page 37

6. ANALYSIS RESULTS FOR LET 116C JACK-UP

Full set of analysis results and any relevant comments on the results of the analyses. Use

Tables for this section.

6.1 SAND CASE FOR LET 116C JACK-UP




BS KN

OTM KN-m

BS KN

OTM KN-m

BS KN

OTM KN-m

OTM KN-m

BS KN

OTM KN-m

60 12,903 676,025 1,607 158,015 3,097 270,410 101,092 17,607 1,205,541

90 13,027 681,593 1,566 151,328 3,126 272,637 97,851 17,719 1,203,410

120 13,171 691,199 1,662 162,867 3,161 276,480 103,751 17,994 1,234,298


The results of the global non-linear analysis, showing footing reactions, are given in below.


Leg ID KN KN KN-m

Bow 6,009 42,531 0

Stbd 5,592 -4,628 0 60

Port 6,008 43,651 0

Bow 6,489 27,186 0

Stbd 5,659 -640 0 90

Port 5,589 55,009 0

Bow 6,193 11,477 0

Stbd 6,200 10,326 0 120

Port 5,601 59,752 0




Page 38











UC Heading/Leg







Page 39


port leg. The check was based on a factored ultimate capacity of 1,590 kips (7,075 KN).

Maximum Pinion Storm Vertical Load (KN) 6,736

Factored Pinion Ultimate Capacity (KN) 7,075



Each spudcan foundation bearing capacity/sliding check and utilizations are given below


Origin

-1,000

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

0 100 200 300 400 500 600 700 800 900 1,000


Ve

rtic

al C

ap

ac

ity

(to

nn

es

)

Unfactored Load CapacityFactored Load CapacityFactored Sliding CapacityUnfactored Sliding CapacityBow Footing ReactionsSTBD Footing ReactionsPort Footing ReactionOriginCapacity Vector for Bow LegCapacity Vector for STBD LegCapacity Vector for Port Leg




Page 40

Leg Bow STBD Port


Magnitude of Force Vector 2,146 t 2,811 t 3,855 t

UC 1.62 1.87 2.27

Table 6.7 – Bearing Capacity/Sliding Utilizations (Sand Case)

6.2 CLAY CASE FOR LET 116C JACK-UP




BS KN

OTM KN-m

BS KN

OTM KN-m

BS KN

OTM KN-m

OTM KN-m

BS KN OTM KN-m

60 3,523 309,530 1,484 195,960 493 108,335 47,509 5,500 661,334

90 3,664 317,757 1,452 189,483 513 111,215 46,624 5,629 665,078

120 4,000 349,564 1,530 201,621 560 122,347 57,619 6,091 731,152




Page 41

The results of the global non-linear analysis, showing footing reactions, are given below.


Leg ID KN KN KN-m

Bow 1,920 33,972 82,919

Stbd 1,653 17,878 84,816 60

Port 1,913 34,269 82,660

Bow 2,140 28,691 88,419

Stbd 1,825 19,083 85,828 90

Port 1,683 38,346 74,800

Bow 2,174 22,461 88,458

Stbd 2,157 22,092 88,409 120

Port 1,751 41,568 66,085




summarizes the overturning stability check. A resistance factor of 1.05 has been applied.


The storm loading direction giving the largest storm footing reaction was found to be 120o.

A resistance factor of 1.10 has been applied.




ISO/DIS 19905-1. Leg strength UC’s are given in below.

Total OTM (KN-m) 661,334 Total Factored Righting Moment (KN-m ) 1,359,630 Overturning Stability UC 0.49



Page 42

UC Heading/Leg





port leg. The check was based on a factored ultimate capacity of 1,590 kips (7075 KN).

Maximum Pinion Storm Vertical Load (KN) 3,396

Factored Pinion Ultimate Capacity (KN) 7,075



The spudcan foundation bearing capacity/sliding checks and utilizations are given below.


Origin

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

0 500 1,000 1,500 2,000 2,500


Ve

rtic

al C

ap

ac

ity

(to

nn

es

)

Unfactored Load CapacityFactored Load CapacityFactored Sliding CapacityUnfactored Sliding CapacityBow Footing ReactionsSTBD Footing ReactionsPort Footing ReactionOriginCapacity Vector for Bow Leg Capacity Vector for STBD LegCapacity Vector for Port Leg




Page 43

Leg Bow STBD Port


Magnitude of Force Vector 1,711 t 178 t 2,481 t

UC 0.65 0.15 0.94

Table 6.14 – Bearing Capacity/Sliding Utilizations (Clay Case)



Page 44

7. CONCLUSIONS

Although the ISO and SNAME results are similar, this could not have been achieved by the

parties acting independently.

Several checks were made on both units and normalization of results at that point of

calculation were needed to obtain similar results.

There are several areas where BASS feel there is insufficient guidance to achieve the same

level of risk as we would achieve using our methods of normal site assessment using

SNAME RP 5-A:

Leg to hull connection – relative stiffness of all attachments.

Chord robustness versus risk during unusual loading.

Better chord to guide interaction and analysis.



Page 45

8. REFERENCES

1. ISO/DIS 19905-1ISO/DIS 19905-1.

2. 2009-12-17 EMAIL FROM JOHN STIFF ENCL2 Benchmarking Sand Site soils data.

3. 2009-12-17 EMAIL FROM JOHN STIFF ENCL3 Benchmark-clay.

4. SACS Software Program Version 5.2.01 – 2005 Engineering Dynamics Inc.

5. Cutdown NDA Phase 1 report to supply B-Class data.



Page 46

APPENDIX A: KFELS B-CLASS Jack-up Hydrodynamic Coefficient Calculations



Page 47



Page 48



Page 49

APPENDIX B: LET 116C Jack-Up Hydrodynamic Coefficient Calculations



Page 50



Page 51



Page 52

APPENDIX C: KFELS B-CLASS Jack-Up Partial Sacs Fem Listing

LDOPT SFINOPFL+Z64.2 490.0 111.8 245.0 GLOBEN OPTIONS EN SDUC 1 1 0 PTPTPTPT PTPT LCSEL ST 27 UCPART 0.00.6 .6 1.0 1.0 AMOD AMOD 24 1.333 25 1.333 26 1.333 27 1.333 28 1.333 29 1.333 30 1.333 SECT SECT CODMEMB PRI198.189154.3 5292.93 4607.01 7.0 15.794110.056.8 SECT JK1MEMB PRI817.0 356500.0340100.01550000. 72.9 130.0 384.0216.0 SECT JK2MEMB PRI564.5 142000.0190800.01191000. 51.0 124.0 286.5144.0 SECT MEMBHBB BOX 15.0 2.0 24.0 2.0 SECT MEMBL11 PRI558.0 1.000+099122000.1.000+09 380.0 144.0 1000.360.0 SECT MEMBL13 PRI662.1 1.000+091.318+071.000+09 385.6 300.0 1000.270.0 SECT MEMBL14 PRI837.361.000+091.685+071.000+09 418.0 480.0 1000.270.0 SECT MEMBL17 PRI819.721.000+091.750+071.000+09 406.0 480.0 1000.225.0 SECT MEMBL18 PRI662.1 1.000+091.318+071.000+09 385.0 480.0 1000.270.0 SECT MEMBL19 PRI243.0 1.000+092250000.1.000+09 270.0 72.0 1000.95.0 SECT MEMBL20 PRI243.0 1.000+092250000.1.000+09 270.0 72.0 1000.95.0 SECT MEMBLEG PRI582.962723133.2.082+092.082+09 468.0 600.0 74.6 74.6 SECT MEMBLWL PRI330.0 1.000+094354565.1.000+09 288.0 120.0 1000.180.0 SECT MEMBSMR PRI1500.01.000+091.000+091.000+09 100.0 100.0 3000.3000. SECT MEMBSS1 PRI276.841.000+094986476.1.000+09 404.0 120.0 1000.135.0 SECT MEMBSS2 PRI624.6 1.000+091.710+071.000+09 408.76 300.0 1000.270.0 SECT MEMBT10 PRI347.761.000+096710000.1.000+09 412.54 180.0 1000.135.0 SECT MEMBT11 PRI505.261.000+099090000.1.000+09 380.0 180.0 1000.270.0 SECT MEMBT12 PRI864.0 1.000+091.483+071.000+09 363.0 144.0 1000.540.0 SECT MEMBTR1 PRI243.2 1.000+092253058.1.000+09 272.0 120.0 1000.94.5 SECT MEMBTR2 PRI274.681.000+092420000.1.000+09 269.7 120.0 1000.126.0 SECT MEMBTR3 PRI531.841.000+098520000.1.000+09 362.6 300.0 1000.360.0 SECT MEMBTR4 PRI373.681.000+096250000.1.000+09 386.0 240.0 1000.225.0 SECT MEMBTR5 PRI463.681.000+098948000.1.000+09 412.0 240.0 1000.180.0 SECT MEMBTR6 PRI463.681.000+098948000.1.000+09 412.54 240.0 1000.180.0 SECT MEMBTR7 PRI297.0 1.000+095050000.1.000+09 400.0 72.0 1000.180.0 SECT MEMBTR8 PRI347.761.000+096710000.1.000+09 412.0 180.0 1000.135.0 SECT MEMBTR9 PRI390.3 1.000+097740000.1.000+09 416.0 216.0 1000.135.0 SECT PINMEMB PRI20.0 20.0 168.5 168.5 20.0 20.0 144.8144.8 SECT RCMMEMB PRI400.0 100000.08926.5 7866.8 20.0 20.0 105.03000. GRUP GRUP CMR MEMBSMR 29.0 11.6 100.0 1 1.0 1.0 1.0 .001 GRUP C01 CODMEMB 29.0 11.6 100.0 1 .9 .9 1.0 N620.0 GRUP C02 CODMEMB 29.0 11.6 100.0 1 .9 .9 1.0 N620.0 GRUP C03 CODMEMB 29.0 11.6 100.0 1 .9 .9 1.0 N620.0 GRUP C04 CODMEMB 29.0 11.6 100.0 1 .9 .9 1.0 N620.0 GRUP COD CODMEMB 29.0 11.6 100.0 1 .9 .9 1.0 N620.0 GRUP DBR 18.0 .75 29.0 11.6 52.0 1 1.0 1.0 .5 N.001 GRUP HB1 9.625 1.25 29.0 11.6 65.0 1 .8 .8 .5 N546.23 GRUP HB2 9.625 1.5 29.0 11.6 65.0 1 .8 .8 .5 N546.23 GRUP HBB MEMBHBB 29.0 11.6 52.0 1 1.0 1.0 .5 N.001 GRUP IDB 6.625 .432 29.0 11.6 34.0 1 1.0 1.0 .5 N546.43 GRUP JK1 JK1MEMB 29.0 11.6 52.0 1 1.661.66 1.0 N.001 GRUP JK2 JK2MEMB 29.0 11.6 52.0 1 5.0 5.0 1.0 N.001 GRUP KB1 9.625 1.0 29.0 11.6 65.0 1 .8 .8 .5 N546.23 GRUP KB2 9.625 1.25 29.0 11.6 65.0 1 .8 .8 .5 N546.23 GRUP L11 MEMBL11 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP L13 MEMBL13 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP L14 MEMBL14 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP L15 MEMBL14 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP L16 MEMBL14 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP L17 MEMBL17 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP L18 MEMBL18 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP L19 MEMBL19 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP L20 MEMBL20 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP LEG MEMBLEG 29.0 11.6 100.0 1 1.0 1.0 .5 N3115.0 GRUP LGM MEMBSMR 29.0 11.6 100.0 1 1.0 1.0 1.0 .001 GRUP LWL MEMBLWL 29.0 11.6 51.0 1 1.0 1.0 1.0 .001 GRUP PIN PINMEMB 29.0 11.6 52.0 1 1.0 1.0 1.0 N.001 GRUP RCM RCMMEMB 29.0 11.6 100.0 1 1.0 1.0 1.0 .001 GRUP SMR MEMBSMR 29.0 11.6 100.0 1 1.0 1.0 1.0 .001



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GRUP SS1 MEMBSS1 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP SS2 MEMBSS2 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP T10 MEMBT10 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP T11 MEMBT11 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP T12 MEMBT12 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP TR1 MEMBTR1 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP TR2 MEMBTR2 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP TR3 MEMBTR3 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP TR4 MEMBTR4 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP TR5 MEMBTR5 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP TR6 MEMBTR6 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP TR7 MEMBTR7 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP TR8 MEMBTR8 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP TR9 MEMBTR9 29.0 11.6 34.0 1 1.0 1.0 1.0 .001 GRUP UGM MEMBSMR 29.0 11.6 100.0 1 1.0 1.0 1.0 .001 GRUP VB1 9.625 1.0 29.0 11.6 65.0 1 .8 .8 .5 N546.23 GRUP VB2 6.625 .432 29.0 11.6 65.0 1 .8 .8 .5 N546.23 GRPOV GRPOV CMR N .001 .001 .001.001.001.001 GRPOV C01 N 12.0 12.0 5.095.0914.314.3 GRPOV C02 N 12.0 12.0 5.095.0914.314.3 GRPOV C03 N 12.0 12.0 5.095.0914.314.3 GRPOV C04 N 12.0 12.0 5.095.0914.314.3 GRPOV COD N 12.0 12.0 3.5 3.5 13.113.1 GRPOV DBR N .001 .001 .001.001.001.001 GRPOV HBB N .001 .001 .001.001.001.001 GRPOV HB1 N .001 .001 .001.001.001.001 GRPOV KB1 N .001 .001 .001.001.001.001 GRPOV HB2 N .001 .001 .001.001.001.001 GRPOV KB2 N .001 .001 .001.001.001.001 GRPOV IDB N .001 .001 .001.001.001.001 GRPOV JK1 N .001 .001 .001.001.001.001 GRPOV JK2 N .001 .001 .001.001.001.001 GRPOV L11 N .001 .001 .001.001.001.001 GRPOV L13 N .001 .001 .001.001.001.001 GRPOV L14 N .001 .001 .001.001.001.001 GRPOV L15 N .001 .001 .001.001.001.001 GRPOV L16 N .001 .001 .001.001.001.001 GRPOV L17 N .001 .001 .001.001.001.001 GRPOV L18 N .001 .001 .001.001.001.001 GRPOV L19 N .001 .001 .001.001.001.001 GRPOV L20 N .001 .001 .001.001.001.001 GRPOV LEG N 12.0 12.0 18.018.046.446.4 GRPOV LGM N .001 .001 .001.001.001.001 GRPOV LWL N .001 .001 .001.001.001.001 GRPOV PIN N .001 .001 .001.001.001.001 GRPOV RCM N .001 .001 .001.001.001.001 GRPOV SMR N .001 .001 .001.001.001.001 GRPOV SS1 N .001 .001 .001.001.001.001 GRPOV SS2 N .001 .001 .001.001.001.001 GRPOV T10 N .001 .001 .001.001.001.001 GRPOV T11 N .001 .001 .001.001.001.001 GRPOV T12 N .001 .001 .001.001.001.001 GRPOV TR1 N .001 .001 .001.001.001.001 GRPOV TR2 N .001 .001 .001.001.001.001 GRPOV TR3 N .001 .001 .001.001.001.001 GRPOV TR4 N .001 .001 .001.001.001.001 GRPOV TR5 N .001 .001 .001.001.001.001 GRPOV TR6 N .001 .001 .001.001.001.001 GRPOV TR7 N .001 .001 .001.001.001.001 GRPOV TR8 N .001 .001 .001.001.001.001 GRPOV TR9 N .001 .001 .001.001.001.001 GRPOV UGM N .001 .001 .001.001.001.001 GRPOV VB1 N .001 .001 .001.001.001.001 GRPOV VB2 N .001 .001 .001.001.001.001 LOAD LOADCN 1 LOAD 4101 -2466.8 GLOB JOIN ELEVATED LOAD 4103 -2466.8 GLOB JOIN ELEVATED LOAD 4105 -2466.8 GLOB JOIN ELEVATED LOAD 4301 -2466.8 GLOB JOIN ELEVATED



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LOAD 4303 -2466.8 GLOB JOIN ELEVATED LOAD 4305 -2466.8 GLOB JOIN ELEVATED LOAD 4201 -2466.8 GLOB JOIN ELEVATED LOAD 4203 -2466.8 GLOB JOIN ELEVATED LOAD 4205 -2466.8 GLOB JOIN ELEVATED LOADCN 5 WAVE WAVE STOK47.3 245.0 13.3 90.0 D-60.0 5.0 72MM10 1 0 LCOMB LCOMB 24 1 1.000 2 1.150 9 1.527 16 2.580 23 1.000 LCOMB 25 1 1.000 3 1.150 10 1.415 17 2.987 23 1.000 LCOMB 26 1 1.000 4 1.150 11 1.537 18 1.891 23 1.000 LCOMB 27 1 1.000 5 1.150 12 1.508 19 1.674 23 1.000 LCOMB 28 1 1.000 6 1.150 13 1.531 20 1.890 23 1.000 LCOMB 29 1 1.000 7 1.150 14 1.526 21 2.255 23 1.000 LCOMB 30 1 1.000 8 1.150 15 1.411 22 3.407 23 1.000 END



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APPENDIX D: LET 116C Jack-Up Partial Sacs Fem Listing

LDOPT INOPFL+Z64.2 490.0 94.5 252.5 GLOBEN OPTIONS EN SDUC 1 1 0 PTPTPTPT PTPT LCSEL ST 26 UCPART 0.00.6 .6 1.0 1.0 AMOD AMOD 24 1.333 25 1.333 26 1.333 27 1.333 28 1.333 29 1.333 30 1.333 SECT SECT CD1MEMB PRI165.969268.0 14254.086522.26 22.8 28.0 56.0 56.0 SECT CD2MEMB PRI165.969268.0 14254.086522.26 22.8 28.0 56.0 56.0 SECT CD3MEMB PRI165.969268.0 14254.086522.26 22.8 28.0 56.0 56.0 SECT CD4MEMB PRI165.969268.0 14254.086522.26 22.8 28.0 56.0 56.0 SECT GAPMEMB PRI.45 1.000+091.000+091.000+09 200.0 200.0 200.0200.0 SECT H01MEMB PRI309.6 9.610+084403000.1.000+09 100.0 100.0 150.0150.0 SECT H02MEMB PRI302.4 9.610+084356000.1.000+09 100.0 100.0 150.0150.0 SECT H03MEMB PRI401.769.610+087.104+071.000+09 100.0 100.0 200.0200.0 SECT H04MEMB PRI891.369.610+081.649+071.000+09 100.0 100.0 495.0495.0 SECT H05MEMB PRI878.4 9.610+081.495+071.000+09 100.0 100.0 440.0440.0 SECT H06MEMB PRI1742.49.610+082.977+071.000+09 100.0 100.0 870.0870.0 SECT H08MEMB PRI760.329.610+081.396+071.000+09 100.0 100.0 380.0380.0 SECT H09MEMB PRI302.4 9.610+083988000.1.000+09 100.0 100.0 150.0150.0 SECT H11MEMB PRI717.129.610+081.348+071.000+09 100.0 100.0 360.0360.0 SECT H12MEMB PRI612.0 9.610+081.009+071.000+09 100.0 100.0 305.0305.0 SECT H13MEMB PRI260.649.610+083419000.1.000+09 100.0 100.0 130.0130.0 SECT H14MEMB PRI215.469.610+081244000.1.000+09 100.0 100.0 110.0110.0 SECT H15MEMB PRI15500.1.000+091.000+091.000+09 100.0 100.0 1000.1000. SECT HB1MEMB TUB 12.75 .75 SECT HB2MEMB TUB 12.75 .75 SECT HB3MEMB TUB 12.75 .5 SECT JPBMEMB PRI244.0 333000.033000.0 300000.0 51.0 124.0 286.5144.0 SECT JTBMEMB PRI54.0 2140.74 2279.0 937.0 18.0 11.0 22.0 36.0 SECT KB1SECT TUB 12.75 .75 SECT KB2SECT TUB 12.75 .75 SECT KB3SECT TUB 12.75 .5 SECT MEMBLEG PRI900.027953807.1.596+091.596+09 336.0 336.0 140.9140.9 SECT MEMBLWL PRI1.0+051.000+091.000+091.000+09 288.0 120.0 1000.180.0 SECT MEMBSMR PRI1500.01.000+091.000+091.000+09 100.0 100.0 3000.3000. GRUP GRUP CD1 CD1MEMB 29.0 11.6 75.0 1 .8 .8 .5 N490.0 GRUP CD2 CD2MEMB 29.0 11.6 75.0 1 .8 .8 .5 N490.0 GRUP CD3 CD1MEMB 29.0 11.6 75.0 1 .8 .8 .5 N490.0 GRUP CD4 CD2MEMB 29.0 11.6 75.0 1 .8 .8 .5 N490.0 GRUP CMR MEMBSMR 29.0 11.6 36.0 1 1.0 1.0 .5 N.001 GRUP GAP GAPMEMB 29.0 11.6 85.0 1 1.0 1.0 .5 N.001 GRUP H01 H01MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP H02 H02MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP H03 H03MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP H04 H04MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP H05 H05MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP H06 H06MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP H08 H08MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP H09 H09MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP H11 H11MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP H12 H12MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP H13 H13MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP H14 H14MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP H15 H15MEMB 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRUP HB1 HB1MEMB 29.0 11.6 90.0 1 .65 .65 .5 N490.0 GRUP HB2 HB2MEMB 29.0 11.6 90.0 1 .65 .65 .5 N490.0 GRUP HB3 HB3MEMB 29.0 11.6 90.0 1 .65 .65 .5 N490.0 GRUP IDB 8.625 .375 29.0 11.6 90.0 1 .8 .8 .5 N490.0 GRUP JBB 18.0 .75 29.0 11.6 52.0 1 1.0 1.0 .5 N.001 GRUP JPB JPBMEMB 29.0 11.6 52.0 1 1.0 1.0 1.0 N.001 GRUP JTB JTBMEMB 29.0 11.6 52.0 1 1.0 1.0 .5 N.001 GRUP KB1 KB1SECT 29.0 11.6 90.0 1 .65 .65 .5 N490.0 GRUP KB2 KB2SECT 29.0 11.6 90.0 1 .65 .65 .5 N490.0 GRUP KB3 KB3SECT 29.0 11.6 90.0 1 .65 .65 .5 N490.0 GRUP LEG MEMBLEG 29.0 11.6 88.0 1 1.0 1.0 .5 N2422.1 GRUP LGM MEMBSMR 29.0 11.6 36.0 1 1.0 1.0 .5 N.001



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GRUP LHC MEMBSMR 29.0 11.6 36.0 1 1.0 1.0 .5 N.001 GRUP LWL MEMBLWL 29.0 11.6 51.0 1 1.0 1.0 1.0 .001 GRUP PIN MEMBSMR 29.0 11.6 36.0 1 1.0 1.0 .5 N.001 GRUP UGM MEMBSMR 29.0 11.6 36.0 1 1.0 1.0 1.0 .001 GRPOV GRPOV CD1 N 12.0 12.0 8.438.4325.025.0 GRPOV CD2 N 12.0 12.0 8.438.4325.025.0 GRPOV CD3 N 12.0 12.0 7.177.1724.124.1 GRPOV CD4 N 12.0 12.0 7.177.1724.124.1 GRPOV CMR N .001 .001 .001.001.01 .01 GRPOV GAP N .001 .001 .001.001.01 .01 GRPOV H01 N .001 .001 .001.001.01 .01 GRPOV H02 N .001 .001 .001.001.01 .01 GRPOV H03 N .001 .001 .001.001.01 .01 GRPOV H04 N .001 .001 .001.001.01 .01 GRPOV H05 N .001 .001 .001.001.01 .01 GRPOV H06 N .001 .001 .001.001.01 .01 GRPOV H08 N .001 .001 .001.001.01 .01 GRPOV H09 N .001 .001 .001.001.01 .01 GRPOV H11 N .001 .001 .001.001.01 .01 GRPOV H12 N .001 .001 .001.001.01 .01 GRPOV H13 N .001 .001 .001.001.01 .01 GRPOV H14 N .001 .001 .001.001.01 .01 GRPOV H15 N .001 .001 .001.001.01 .01 GRPOV HB1 N .001 .001 .001.001.01 .01 GRPOV HB2 N .001 .001 .001.001.01 .01 GRPOV HB3 N .001 .001 .001.001.01 .01 GRPOV IDB N .001 .001 .001.001.01 .01 GRPOV JBB N .001 .001 .001.001.01 .01 GRPOV JPB N .001 .001 .001.001.01 .01 GRPOV JTB N .001 .001 .001.001.01 .01 GRPOV KB1 N .001 .001 .001.001.01 .01 GRPOV KB2 N .001 .001 .001.001.01 .01 GRPOV KB3 N .001 .001 .001.001.01 .01 GRPOV LEG N 12.0 12.0 33.733.7100.100. GRPOV LGM N .001 .001 .001.001.01 .01 GRPOV LHC N .001 .001 .001.001.01 .01 GRPOV LWL N .001 .001 .001.001.01 .01 GRPOV PIN N .001 .001 .001.001.01 .01 GRPOV UGM N .001 .001 .001.001.01 .01 LOAD LOADCN 1 LOAD 4101 -1175.0 GLOB JOIN HULLWT LOAD 4102 -1175.0 GLOB JOIN HULLWT LOAD 4103 -1175.0 GLOB JOIN HULLWT LOAD 4104 -1175.0 GLOB JOIN HULLWT LOAD 4201 -1175.0 GLOB JOIN HULLWT LOAD 4202 -1175.0 GLOB JOIN HULLWT LOAD 4203 -1175.0 GLOB JOIN HULLWT LOAD 4204 -1175.0 GLOB JOIN HULLWT LOAD 4301 -1175.0 GLOB JOIN HULLWT LOAD 4302 -1175.0 GLOB JOIN HULLWT LOAD 4303 -1175.0 GLOB JOIN HULLWT LOAD 4304 -1175.0 GLOB JOIN HULLWT LOADCN 4 CURR CURR 0.000 0.00060.0 CURR 49.0 .96 60.0 CURR 126.3 1.04 60.0 CURR 252.5 1.12 60.0 WAVE WAVE STOK31.8 252.5 10.0 60.0 D-60.0 5.0 72MM10 1 0 LCOMB LCOMB 24 1 1.000 2 1.150 9 0.550 16 0.903 23 1.000 LCOMB 25 1 1.000 3 1.150 10 0.568 17 0.751 23 1.000 LCOMB 26 1 1.000 4 1.150 11 0.531 18 0.869 23 1.000 LCOMB 27 1 1.000 5 1.150 12 0.524 19 0.736 23 1.000 LCOMB 28 1 1.000 6 1.150 13 0.564 20 0.953 23 1.000 LCOMB 29 1 1.000 7 1.150 14 0.546 21 0.738 23 1.000 LCOMB 30 1 1.000 8 1.150 15 0.534 22 0.821 23 1.000 END

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LeT 116C Jack-Up KFELS B-Class Jack-Up · PDF filelet 116c jack-up kfels b-class jack-up phase 2 benchmarking of iso 19905-1 report no: 709-j-io-rpt-001 ... 2.1 basic soil foundation