Boreholes - Auckland . Appendix B1 Borehole Logs. ... Grout mix Bentonite ... with no backfill Non-slotted PVC pipe with grout mix General backfill Flush cover

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Text of Boreholes - Auckland . Appendix B1 Borehole Logs. ... Grout mix Bentonite ... with no backfill...

  • Appendix BBoreholes

  • Appendix B1Borehole Logs

  • Revision 1

    139 Carlton Gore RoadPO Box 9762NewmarketAuckland, New ZealandTel: +64 9 520 6019www.aurecongroup.com

    HYDRO VAC EX HAND EXHQ3NQ3SPTSPTCU60U63

    Hydro Vacum ExcavatorHand ExcavationHQ Triple Tube Rotary CoreNQ Triple Tube Rotary CoreStandard Penetration Test (sample)Solid Cone SPT (no sample)Thin Wall inner diameter 60mmThin Wall inner diameter 63mm

    DRILLING METHOD

    Very softSoftFirm

    StiffVery StiffHard

    < 1212 to 2525 to 50

    50 to 100100 to 200200 to 500

    SOLID LINEDASHED LINEDASH-DOT LINE

    Abrupt boundary.Gradational boundary.Inferred boundary.

    LITHOLOGY BOUNDARY TYPES

    IN SITU STANDARD PENETRATION TESTS25 for 85mm //18,18,14 for 55mmN = 50+

    Seating blows and seating penetration, do not contribute to test result)Blows per 75mm and the last blow increment lengthSPT 'N' value. Sum of blows per 300mm (BS EN ISO 22476-3:2005)'N' values in excess of 50 blows are shown as 50+

    DISCONTINUITY TYPEBPBPJTJTJICZSZFTVEBDDIHI

    Bedding plane or seamFracture along bedding plane (suspect not drilling induced)Joint / FractureIncipient joint / microfractureCrushed zone No evidence of shear.Sheared zoneFaultMineralised veinDrilling break (Undifferentiated drilling or handling induced break.)Drilling inducedHandling induced

    RoSmPoSlk

    RoughSmoothPolished (no evidence of shear / striations)Slickensided (evidence of shear / striations)

    DISCONTINUITY COATING

    CnSnVnCg

    CleanStained Veneer (1mm), thickness qualified in mm

    DISCONTINUITY ROUGHNESS

    DISCONTINUITY PLANARITYUnStPl

    Undulating SteppedPlanar

    ROCK CLASSIFICATION

    Soil and rock descriptions are generally as described in the "Field Description of Soil and Rock: Guideline for the fieldclassification and description of soil and rock for engineering purposes" New Zealand Geotechnical Society Inc,December 2005.

    ESTIMATED ROCK STRENGTHSYMBOL TERM FIELD TEST

    CONSISTENCY OF COHESIVE SOILS

    Easily exudes between fingers when squeezed.Easily indented by fingers.Indented by strong finger pressure and can beindented by thumb pressure.Cannot be indented by thumb pressure.Can be indented by thumb nail.Difficult to indent by thumb nail.

    FIELD ASSESSMENT Cu (kPa)

    APPROXIMATE Qu (MPa

    ESVSSMS

    W

    VWEW

    Extremely StrongVery StrongStrongModerately Strong

    Weak

    Very WeakExtremely Weak

    Can only be chipped by geological hammer.Requires many blows of geological hammer to beak it.Requires more than one blow of geological hammer to fractiure it.Cannot be scraped or peeled with a pocket knife. Can be fractured with single firm blow of geological hammer.Can be peeled by a pocket knife with difficulty. Shallow indentations made by firm blow with point of geological hammer.Crumbles under firm blows with point of geological hammer. Can be peeled by a pocket knife.Indented by thumb nail or lesser strength terms used for soils.

    >250100 to 25050 to 10020 to 50

    5 to 20

    1 to 5 8565 - 8535 - 6515 - 35< 15

    >5030 - 5010 - 304 - 10< 4

    > 177 - 173 - 71 - 30 - 2

    ROCK MATERIAL WEATHERINGUWSWMWHWCWRS

    Unweathered Slightly Weathered Moderately WeatheredHighly WeatheredCompletely Weathered Residual Soil

    TCR (%)SCR (%)RQD (%)FI (%)

    Ratio of core recovered (solid and non-intact) to length of core run, measured along core axis.Ratio of solid core recovered to length of core run, measured along core axis, using Norbury, 1986.Ratio of solid core pieces longer than 100 mm to length of core run, measured along core axis.Fracture Index - a count of fractures over an arbitrary length of core of similar intensity of fracturing.

    ENGINEERING LOG LEGEND

    CEMENTATION CLASSESUncementedPoorly cementedModerately cementedWell cemented

    (non NZGS)

  • BACKFILL / INSTALLATION GRAPHIC

    GRAPHIC LOG LEGEND

    FILL

    ASPHALT

    CONCRETE

    TOPSOIL

    CLAY

    SILT

    CLAYEY SANDSAND

    ORGANIC CLAY

    SANDY SILT

    SILTY CLAY

    CLAYEY SILT

    BASALT

    SILTY SAND ASH

    SANDSTONE

    SILTSTONE

    INTERBEDDEDSILTSTONE &SANDSTONE

    TUFF

    FAULTCONGLOMERATIC SANDSTONE

    Non-slotted PVC pipewith bentonite

    Grout mix

    Bentonite

    Non-slotted PVC pipewith blinding sand

    Blinding sand Inclinometerwith grout mix

    Non-slotted PVC pipewith no backfill

    Non-slotted PVC pipewith grout mix

    General backfill

    Flush cover

    Vibrating Wire

    Slotted PVC pipewith walton park sand

    Non-slotted PVC pipewith walton park sand

    Walton Park Sand

    CONGLOMERATE

    Revision 1

    139 Carlton Gore RoadPO Box 9762NewmarketAuckland, New ZealandTel: +64 9 520 6019www.aurecongroup.com

  • Gra

    phic

    Log

    VW

    SW

    SM

    WS

    CS

    VC

    SE

    CS

    HSV Serial No: DR4940 Correction Factor: 1.433

    Dat

    abas

    e F

    ile:

    23

    993

    3 C

    RL

    ST

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    RE

    CO

    N D

    H L

    OG

    V3.

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    : 1

    4/04

    /201

    5

    REMARKS:1) Ground Access Portal (GAP) service clearance to 1.84m bgl, after installation drilling commenced from 1.6m bgl.2) BH275R is a redrill of BH275 for additional vibrating wire installations, a new borehole drilled adjacent to BH275.

    Inst

    alla

    tion

    R.L

    . (m

    )

    64

    63

    62

    61

    60

    Water Level Readings:Date Time | Hole Depth | Water Level(1) 03/09/14 10:10 | 9.00m | 1.91 m bgl(2) 03/09/14 14:50 | 17.00m | 2.24 m bgl(3) 04/09/14 09:48 | 17.00m | 2.21 m bgl(4) 04/09/14 14:20 | 27.00m | 2.46 m bgl(5) 08/09/14 10:10 | 33.00m | 2.61 m bgl(6) 09/09/14 09:53 | 39.00m | 4.59 m bgl(7) 10/09/14 10:55 | 42.05m | 7.49 m bgl

    Rotary Core WirelineTechdrill TD200 Truck Rig #79Drill Force

    BH275RSheet 1 of 9

    2/09/20149/09/201490N/A

    Logged by:Input by:Checked by:Verified by:

    MHMHPAKST

    Client: Auckland TransportProject: City Rail Link: Stage 3B Ground InvestigationLocation: 66 Pitt Street, AucklandProject Reference: 239933

    BOREHOLE INFORMATIONMethod:Equipment:Contractor:

    Mt Eden Circuit 2000399545.41m802504.46m64.54m(Auckland MSL 1946 Datum)

    Level 4, 139 Carlton Gore RoadPO Box 9762, NewmarketAuckland, New ZealandTel: +64 9 520 6019www.aurecongroup.com

    CO-ORDINATES:Easting:Northing:Reduced level:

    Date started:Date completed:Inclination:Azimuth:

    Box

    1

    GW

    CH

    CH

    MH

    CH

    ML

    0m: FILL

    1.6m:

  • Gra

    phic

    Log

    VW

    SW

    SM

    WS

    CS

    VC

    SE

    CS

    HSV Serial No: DR4940 Correction Factor: 1.433

    Dat

    abas

    e F

    ile:

    23

    993

    3 C

    RL

    ST

    AG

    E 3

    V2.

    GP

    J

    Lib

    rary

    fil

    e: A

    UR

    EC

    ON

    _AK

    L_20

    130

    627

    V1

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    N.G

    LB T

    emp

    late

    : A

    UR

    EC

    ON

    _AK

    L_20

    130

    722

    .GD

    T

    Rep

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    Fil

    e:

    AU

    RE

    CO

    N D

    H L

    OG

    V3.

    9.1

    Dat

    e G

    ener

    ated

    : 1

    4/04

    /201

    5

    REMARKS:1) Ground Access Portal (GAP) service clearance to 1.84m bgl, after installation drilling commenced from 1.6m bgl.2) BH275R is a redrill of BH275 for additional vibrating wire installations, a new borehole drilled adjacent to BH275.

    Inst

    alla

    tion

    R.L

    . (m

    )

    59

    58

    57

    56

    55

    Water Level Readings:Date Time | Hole Depth | Water Level(1) 03/09/14 10:10 | 9.00m | 1.91 m bgl(2) 03/09/14 14:50 | 17.00m | 2.24 m bgl(3) 04/09/14 09:48 | 17.00m | 2.21 m bgl(4) 04/09/14 14:20 | 27.00m | 2.46 m bgl(5) 08/09/14 10:10 | 33.00m | 2.61 m bgl(6) 09/09/14 09:53 | 39.00m | 4.59 m bgl(7) 10/09/14 10:55 | 42.05m | 7.49 m bgl

    Rotary Core WirelineTechdrill TD200 Truck Rig #79Drill Force

    BH275RSheet 2 of 9

    2/09/20149/09/201490N/A

    Logged by:Input by:Checked by:Verified by:

    MHMHPAKST

    Client: Auckland TransportProject: City Rail Link: Stage 3B Ground InvestigationLocation: 66 Pitt Street, AucklandProject Reference: 239933

    BOREHOLE INFORMATIONMethod:Equipment:Contractor:

    Mt Eden Circuit 2000399545.41m802504.46m64.54m(Auckland MSL 1946 Datum)

    Level 4, 139 Carlton Gore RoadPO Box 9762, NewmarketAuckland, New ZealandTel: +64 9 520 6019www.aurecongroup.com

    CO-ORDINATES:Easting:Northing:Reduced level:

    Date started:Date completed:Inclination:Azimuth:

    Box

    1B

    ox 2

    Box

    3

    ML

    ML

    6m:

  • Gra

    phic

    Log

    VW

    SW

    SM

    WS

    CS

    VC

    SE

    CS

    HSV Serial No: DR4940 Correction Factor: 1.433

    Dat

    abas

    e F

    ile:

    23

    993

    3 C

    RL

    ST

    AG

    E 3

    V2.

    GP

    J

    Lib

    rary

    fil

    e: A

    UR

    EC

    ON

    _AK

    L_20

    130

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