DSI-USA_DYWIDAG-Soil_Nails_us.pdf

7/27/2019 DSI-USA_DYWIDAG-Soil_Nails_us.pdf

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Construction of a Soil Nail Wall

Excavate soil

Drill hole

Install and grout nail

Test selected nails

Place reinforcement

Place shotcrete

Finish shotcrete

Install soil nail plate,washers and nut

Excavate for thenext level of nails

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Bar Properties

DYWIDAG THREADBAR Reinforcing Steel ASTM A615 (Grade 75)

DYWIDAG THREADBAR Prestressing Steel ASTM A722 (Grade 150)

THREADBAR

8

THREADBAR

Designation

Maximum

THREADBAR

Diameter

Yield Stress

(fy)

Cross Section Area

(As)

Yield Load

(fy x As)

Nominal Weight

[in] [mm] [in] [mm] [ksi] [MPa] [in] [mm] [kips] [kN] [lbs/ft] [kg/m

#6 19 0.86 22 75 517 0.44 284 33.0 147 1.50 2.23

#7 22 0.99 25 75 517 0.60 387 45.0 200 2.04 3.04

#8 25 1.12 28 75 517 0.79 510 59.3 264 2.67 3.97

#9 29 1.26 32 75 517 1.00 645 75.0 334 3.40 5.06

#10 32 1.43 36 75 517 1.27 819 95.3 424 4.30 6.40

#11 36 1.61 41 75 517 1.56 1,006 117.0 520 5.31 7.90

#14 43 1.86 47 75 517 2.25 1,452 168.8 751 7.65 11.38

Note: Maximum test load = 90% of the yield load

Mill length = 60'-0" for #6 through #24 bars and 48'-0" for #28 bars

THREADBAR

Designation

Maximum

THREADBAR

Diameter

Ultimate Stress

(fu)

Cross Section Area

(As)

Ultimate Load

(fu x As)

Nominal Weight

[mm] [in] [mm] [ksi] [MPa] [in] [mm] [kips] [kN] [lbs/ft] [kg/m

1" 26 1.20 31 150 1,034 0.85 548 127.5 567 3.01 4.48

1-1/4" 32 1.44 36 150 1,034 1.25 806 187.5 834 4.39 6.53

1-3/8" 36 1.63 41 150 1,034 1.58 1,019 237.0 1,054 5.56 8.27

*1-3/4" 46 2.01 51 155 1,069 2.58 1,664 400.0 1,779 9.22 13.72

* Meets the strength requirements of the A 722.

Note: Maximum test load = 80% of the ultimate load

Mill length = 60'-0" for 1", 1" and 1 " Threadbars and 45'-0" for 1", 2" and 3" bars


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DYWI Drill Hollow Bar System

General Notes

The DYWI Drill Hollow Bar System

is a fully threaded steel bar which

can be drilled and grouted into loose

or collapsing soils without a casing.

The bar features a hollow center for

simultaneous drilling and grouting

and a rope thread for connection to

standard drill tooling.

Manufactured by cold rolling heavy

wall steel tubing, DYWI Drill

Hollow Bar forms a standard rope

thread profile (R25 - R51, T76 has a

trapezoidal thread). The rolling process

refines the grain structure of the steel,

increasing the yield strength and

producing a durable drill rod suitablefor a range of applications.

DYWI Drill Hollow Bars can be installed

into a variety of different soils and

ground conditions ranging from sand

and gravel to inconsistent fill, boulders,

rubble and weathered rock, as well as

through footings and base slabs.

Installation Advantages

n Ability to work with small drill rigs

without casing in narrow spaces

n Similar installation methods for all

ground conditions

n Simultaneous Drill and Grout

Installation

Combines both operations into

a single construction cycle, enabling

high rates of production.

n No Casing Required

Can be installed into loose or

collapsing soils without the need

for a temporary casing to support

the borehole.

n Rotary Percussive Drilling

Enables quick rates of installation,

good directional stability and assists

in the consolidation of the grout

within the borehole.

Material Characteristics

n Fully Threaded Rod Sections

Continuous thread ensures that rods

can be cut and coupled at any point.

n Thread Profile

Standard ISO rope thread (R25-R51)

or trapezoidal thread (T76) produces

an excellent bond between the bar

and grout, and enables connection

to conventional drill tooling.

n The hollow core serves for flushing

with air or water during drilling, but

also for grouting the hole.

n Choice of drill bits for different

ground conditions

n Enhanced corrosion protection is

available upon request

DYWI Drill Hollow Bar Properties

10

Bar

Designation

Nominal Outer

Diameter

Average Yield

Stress

(fy)

Average Ultimate

Tensile Stress

(fu)

Average Cross

Section Area

(As)

Yield Load

(fy x As)

Ultimate Load

(fu x As)

Nominal Weig

[in] [mm] [ksi] [MPa] [ksi] [MPa] [in] [mm] [kips] [kN] [kips] [kN] [lbs/ft] [kg/

R25N 1.00 25 87 600 116 800 0.39 250 34 150 45 200 1.34 2.0R32N 1.26 32 95 657 116 800 0.54 350 52 230 63 280 1.81 2.7

R32S 1.26 32 94 651 121 837 0.67 430 63 280 81 360 2.28 3.4

R38N 1.50 38 98 677 123 847 0.91 590 90 400 112 500 3.16 4.7

R51L 2.00 51 88 608 108 743 1.15 740 101 450 124 550 3.97 5.9

T40N 1.57 40 99 681 124 857 1.19 770 118 525 148 660 4.03 6.0

R51N 2.00 51 97 670 123 851 1.46 940 142 630 180 800 4.97 7.4

T76N 3.00 76 84 576 112 769 3.22 2,080 270 1,200 360 1,600 10.95 16.3

T76S 3.00 76 88 609 112 772 3.81 2,460 337 1,500 427 1,900 12.97 19.3

Note: Maximum allowable, temporary test load is 100% of the yield load. Average cross section area is based on average internal diametof the bar. The ultimate and yield load capacity are measured values. The ultimate tensile and yield stress are calculated average values.Mill length is 9-10 (3m). Longer lengths can be special order.


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Soil Nail Testing

Soil nail testing is performed to

establish the bond stress within the

stable zone of a slope. Typically no

more than 5% of the nails are selected

for testing. Nails are incrementally

loaded during testing.

Tests performed, can include:

n Ultimate tests (sacrificial) where nails

are tested until failure occurs.

n Proof tests can be performed on

sacrificial or production nails.

n Creep tests are generally conducted

during proof or sacrificial testing.

Acceptance criteria should be based

on allowable movements of the wallover its life span.

n Since hollow bar nails are fully

grouted it is necessary to establish

the influence of the wedge zone

bond on the total load. This

will determine a more accurate

assessment of the test load in

relation to bond length.

initial grout

drille

dh

ole

dia

mete

r

excavation face

block out in

dial gauge

supported on

independent

stand

shotcrete

jack

test soil nail

test frameprimary shotcrete

layer

testsoilnaillengthfillholewithgrout,after

testingforproductionnailsbondedlength

DSI Testing Equipment

DSI Jack/chair assembly calibrated

with the pressure gauge are available

for all THREADBAR and DYWI Drill

Hollow Bar sizes.

n Test load is measured with a

pressure gauge incorporated in

the hydraulic jacking system. Nail

movement is recorded by a dial

gauge mounted on an independent

stand.

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A R G E N T I N A

A U S T R A L I A

A U S T R I A

B E L G I U M

B O S N I A A N D H E R Z E G O V I N A

B R A Z I L

C A N A D A

C H I L E

C H I N A

C O L O M B I A

C O S T A R I C A

C R O A T I A

C Z E C H R E P U B L I C

D E N M A R K

E G Y P T

E S T O N I A

F I N L A N D

F R A N C E

G E R M A N Y

G R E E C E

G U A T E M A L A

H O N D U R A S

H O N G K O N GI N D O N E S I A

I T A L Y

J A P A N

K O R E A

L E B A N O N

L U X E M B O U R G

M A L A Y S I A

M E X I C O

N E T H E R L A N D S

N O R W A Y

O M A N

P A N A M A

P A R A G U A Y

P E R U

P O L A N D

P O R T U G A L

Q A T A R

R U S S I A

S A U D I A R A B I A

S I N G A P O R E

S O U T H A F R I C A

S P A I N

S W E D E N

S W I T Z E R L A N D

T A I W A N

T H A I L A N D

T U R K E Y

U N I T E D A R A B E M I R A T E S

U N I T E D K I N G D O M

U R U G U A Y

U S A

V E N E Z U E L A

www.dsiamerica.com

www.dsicanada.ca

DYWIDAG-Systems

International USA Inc.

320 Marmon Drive

Bolingbrook, IL 60440

Phone (630) 739-1100

Fax (630) 739-5517

E-mail [email protected]

1591 E. Atlantic Blvd #200

Pompano Beach, FL 33060

Phone (954) 532-1326

Fax (954) 532-1330


5139 South Royal Atlanta Drive

Tucker, GA 30084

Phone (770) 491-3790

Fax (770) 938-1219


2400 Hwy 287 N.

Suite 106

Mansfield, TX 76063

Phone (817) 473-6161

Fax (817) 473-1453


2154 South Street

Long Beach, CA 90805

Phone (562) 531-6161Fax (562) 531-3266


1314 Central Ave South

Suite 100

Kent, WA 98032

Phone (253) 859-9995

Fax (253) 859-9119


1263 Newark Road

Toughkenamon, PA 19374

Phone (610) 268-2221

Fax (610) 268-3053


DYWIDAG-Systems

International Canada Ltd.

Eastern Division

37 Cardico Drive

Gormley, ON L0H 1G0

Phone (905) 888-8988

Fax (905) 888-8987


Quebec Office

C.P. 412

St. Bruno,

Quebec, QC, J3V 5G8Phone (450) 653-0935

Fax (450) 653-0977


Western Division

19433 96th Avenue

Suite 103

Surrey, BC V4N 4C4

Phone (604) 888-8818

Fax (604) 888-5008


Calgary Office

2816 - 21st Street NE., #204

Calgary, Alberta T2E 6Z2

Phone (403) 291-4414

Fax (403) 250-5221E-mail [email protected]

Please note:This brochure serves basic information

purposes only. Technical data and information

provided herein shall be considered

non-binding and may be subject to change

without notice. We do not assume any liability

for losses or damages attributed to the use

of this technical data and any improper

use of our products. Should you requirefurther information on particular products,

please do not hesitate to contact us.

Documents

DSI-USA_DYWIDAG-Soil_Nails_us.pdf