itp for piling

8/10/2019 ITP for Piling

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2/9

EMPLOYER ENGINEER CONTRACTOR

Ministry of Transport & CommunicationsDirectorate General of Roads & Land Transport

P.O.Box27, P.C.114Sultanate of Oman

COWI & Partners LLC

P.O.Box2115, P.C.112

Sultanate of Oman

Khalid Bin Ahmed & Sons LLC CORSAN CORVIAM JV

Al Azaiba

P.O. Box723, P.C.130

Sultanate of Oman

Contract No.: 95/2012 BS2P2 - Dualization of Bibbid-Sur Road, Section 2, Part 2DOC No: KAS-CCJV/SB2P2/ITP/QA/009 Rev.00

INSPECTION AND TEST PLAN PILING Date: 16/11/2014

(*) When the results show consistent behaviour, the tests for shear strength and pH value may be discontinued, and tests to determine density and viscosity shall be carried out as agreed with the Engineer.

INSPECTION CODE: HHold Point WWitness Point S - Surveillance NIRNo Inspection Requested

Form No.: KAS-CC/SB2P2/OP/QA/01.06 Page 2of 9

ITEM OFINSPECTION

REFERENCE DOCUMENTSFOLLOW-UPDOCUMENTS

TYPE OF INSPECTION AND FREQUENCY / INSPECTION PARTY

NOTES/ACCEPTANCE CRITERIA

SPEC. STANDARDSIndustPark

Subcont Product Survey Quality Engineer Frequency

FIRST PART _ ICL009.1

0. ITP SCOPE

SpecialSpecifications.

Section 10General

SpecificationsSection 10

This Section covers requirements for supplying andinstalling cast in-situ concrete and steel piles by boring.

1. PRELIMINARY

Special

Specifications.Sub-section10.1.3.1General

SpecificationsSub-section

10.1.3.1

KAS-CCJV/BS2P2/ICL/QA/0

09.1H H H H H 100%

Shop drawings approvedMethod Statement approvedWork program approvedITP approvedConcrete trial mixes approved

2.

SETTING OUTAND WORK

PLATFORM


Section 10General


2.1 Work platformavailability


Section 10GeneralSpecifications

Section 10


09.1Daily report

H H W W 100% In accordance to approved drawings

2.2Temporary bench

mark location


Section 10General



09.1Daily report

Survey report

H H H W W 100% In accordance to approved drawings


3/9




COWI & Partners LLC

P.O.Box2115, P.C.112

Sultanate of Oman


Al Azaiba

P.O. Box723, P.C.130

Sultanate of Oman






ITEM OFINSPECTION






2.3Pile location and

numbering


Section 10General



09.1Daily report

Survey reportPile Record Sheet

H H H H W 100%As per approved drawings and work program.Tolerances: Position: 75 mm in any direction at the pile head

3.FOLLOW-UP

ACTIVITIES


Section 10

GeneralSpecifications

Section 10

3.1 Piling rig setting up


Subsection10.1.3.2General


10.1.3.2


09.1Daily report

Pile record Sheet

S S W W 100%In accordance to approced shop drawing.

Approved equipment is used

3.2Casing verticalityand position for

Bucket & Auger pile

SpecialSpecifications.Sub-section

5.3.3.9. Item

16a


09.1Daily report

Pile record Sheet

S S W W 100% Verticali ty: 1 in 75 deviation


4/9




COWI & Partners LLC

P.O.Box2115, P.C.112

Sultanate of Oman


Al Azaiba

P.O. Box723, P.C.130

Sultanate of Oman






ITEM OFINSPECTION






3.3

Pile diameter,length, bottomcleaning and

concreterequirement

checking


10.1.3.2General


10.1.3.3


09.1Daily report

Pile record Sheet

H H S W 100%

Pile diameter an length per drawings.On completion of boring, the base of the pile shall becleaned thoroughly with a cleaning bucket to ensure thatthere is no loose material in the baseDrilling fluid shall be tested and results in accordance tomanufacturer recommendations. If bentonite is isuedproperties will be: Density less 1.20 g/cm3 Fluid loss less than 40 mils (1.016 mm)

Marsh viscosity less than 60 s Plastic viscosity less than20 cP Sand content less tha 3% Shear Strength 4 to 25 N/m2 pH: 9.5 to 11.7

Approved class 40 concrete mix design

3.4 Reinforcement cage

SpecialSpecifications.Sub-section 5.2


Sub-section 5.2


07.1Daily report

Pile record Sheet

H H H H 100%In accordance to drawings and ITP No. KAS-CCJV/BS2P2/ITP/QA/007

3.5 Concrete placement

SpecialSpecifications.Sub-section 5.2


Sub-section 5.2


07.1

Daily reportPile record SheetConcrete

Placement Record

S S W W 100% In accordance to ITP No. KAS-CC JV/BS2P2/ITP/QA/007

3.6 Concrete level


Section 10General



09.1Daily report

Pile record Sheet

S S W W 100% As per drawings


5/9




COWI & Partners LLC

P.O.Box2115, P.C.112

Sultanate of Oman


Al Azaiba

P.O. Box723, P.C.130

Sultanate of Oman






ITEM OFINSPECTION






3.7 Pile as built position


Section 10General



09.1Daily report

Pile record SheetSurvey report

H H H W W 100%As per drawings.Tolerances 75 mm in any direction at the pile head.

FIRST PART _ ICL009.2

4. TESTING

Special

Specifications.Section 10General


4.1

Drilling fluid testing.

Density

(To be made onpolymer if

recommended bymanufacturer) (*)


10.1.2General


10.1.3.2

API RP 138 B-1ASTM D 4380


09.2Daily report

Pile Record SheetTest report

H H W W

Once aday as

suppliedto drillingprocess

Each pilefrom top

andbottom ofthe pileprior

concreting

If polymer: as per technical data sheet of themanufacturerIf bentonite: During drilling, 1.10 g/cm3; fromexcavation prior concreting, 1.20 g/cm3


6/9




COWI & Partners LLC

P.O.Box2115, P.C.112

Sultanate of Oman


Al Azaiba

P.O. Box723, P.C.130

Sultanate of Oman






ITEM OFINSPECTION






4.2


Viscosity(To be made on

polymer ifrecommended bymanufacturer) (*)


10.1.2General


10.1.3.2



09.2Daily report


H H W W

Once aday as


Each pilefrom top

andbottom of

the pileprior

concreting

If polymer: as per technical data sheet of themanufacturerIf bentonite: During drilling, 30 to 40 s; from excavationprior concreting, 60 s

4.3


Plastic Viscosity




10.1.2General


10.1.3.2

API RP 138 B-1


09.2Daily report


H H W W

Once aday as


Each pilefrom top


concreting

If polymer: as per technical data sheet of themanufacturerIf bentonite: During drilling, 10 cP; from excavationprior concreting, 20 cP


7/9




COWI & Partners LLC

P.O.Box2115, P.C.112

Sultanate of Oman


Al Azaiba

P.O. Box723, P.C.130

Sultanate of Oman






ITEM OFINSPECTION






4.4

Drilling fluid testing.Shear Strength




10.1.2General


10.1.3.2

API RP 138 B-1


09.2Daily report


H H W W

Once aday as


Each pilefrom top

andbottom of

the pilepriorconcreting

If polymer: as per technical data sheet of themanufacturerIf bentonite: During drilling, 4 to 25 N/m2; fromexcavation prior concreting, 4 to 25 N/m2

4.5


Sand Content




10.1.2General


10.1.3.2



09.2Daily report


H H W W

Once aday as


Each pilefrom top


concreting

If polymer: as per technical data sheet of themanufacturerIf bentonite: During drilling, 1%; from excavation priorconcreting, 3%


8/9




COWI & Partners LLC

P.O.Box2115, P.C.112

Sultanate of Oman


Al Azaiba

P.O. Box723, P.C.130

Sultanate of Oman






ITEM OFINSPECTION






4.6

Drilling fluid testing.pH




10.1.2General


10.1.3.2



09.2Daily report


H H W W

Once aday as


Each pilefrom top

andbottom of

the pilepriorconcreting

If polymer: as per technical data sheet of themanufacturerIf bentonite: During drilling, 1%; from excavation priorconcreting, 3%

4.7

Caliper logging teston the entire lengthof bored hole prior

to concreting


10.1.3.2ASTM D 6167


09.2Daily report


H H W W

5 No inthe firstweek

Provisionally 10 Nothereafter, equallyspacedthrough

theworks.

Acceptance in accordance to test result interpretarion

4.8

Low strain dynamic

test, sonic eco testor

High straindynamic testing

or

Cross-hole soniclogging

Special

Specifications.Sub-section

10.2General


10.2

ASTM D 5882

ASTM D 4945

ICE-Section 9


09.2Daily report


H H H H 1% Acceptance in accordance to test result interpretarion


9/9




COWI & Partners LLC

P.O.Box2115, P.C.112

Sultanate of Oman


Al Azaiba

P.O. Box723, P.C.130

Sultanate of Oman






ITEM OFINSPECTION






4.9 Static Load Test


Sub-section10.2General


10.2

In accordance toSpecial

Specification,

Tables 10.2.3.1and 10.2.3.2ASTM D 1143

orASTM D 5882

Approved MethodStatement

KAS-CC

JV/BS2P2/ICL/QA/009.2Daily report


H H H H

2preliminarypile testsshall be

undertakenat eachbridge

location oragreed with

theEngineer

At least onepercent ofworkingpile testsshall be

undertakenon piles

agreed withthe

Engineer,or as

shown onthe

Drawings

A preliminary test pile shall be considered to have failedwhen any of the following conditions apply: Any of the above criteria apply at working loads The maximum load specified has not been achieved

A working pile shall be considered to have failed when

any of the following conditions apply: On completion of a load test, the residual settlement

after rebound exceeds 6 mm. The test load as specified in the contract shall not

have been achieved. The maximum settlement under 1.5 working load

specified on the drawings exceeds 10mm or 1% ofthe least lateral dimension of the pile, whichever isthe greater.

itp for piling

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