PT.TRUBA PT.TRUBA JAYA ENGINEERING ENGINEERI NG
DOCUMENT NO: P-T3113-QC-CW-003
PC SPUN PILE PILING PROCEDURE
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TABLE OF CONTENT No.
Descriptions
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1.
GENERAL
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2.
PILING WO WORK
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!.
"EA EA#RE RE" "ENT AND RECORD
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$.
"ET ET% %OD FOR TET PILING
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1. GENERAL
PT.TRUBA JAYA ENGINEERING
DOCUMENT NO: P-T3113-QC-CW-003
PC SPUN PILE PILING PROCEDURE
DATE :
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1.1 Scope This procedure covers the basic requirement of the piling work of P Spun piles and the method for driving vertical concrete pile either precast pre!stressed or precast reinforced concrete 1." #pplicable ode and Standard The following codes and standard shall be used together with technical speci$cation % #& 'P (!198)
*ecommendations for +esign, 'anufacture &nstallation of oncrete Piles.
#ST' + 11(3!8
Piles /nder Static #0ial ompressive oad.
#2S +1.1!8
2elding Practice and 4uali$cations of 5abricator and 6rectors of 2elded onstruction
". PILING WORK ".1 7eneral +escription of Pile, P spun piles used for this proect. "." 'aterial ".".1 The piles shall be either precast pre!stressed or precast reinforced concrete piles of approved design. "."." The concrete shall conform to the grade !) using tpe && cement. ".".3 &n case of precast concrete piles the prestressing cables shall conform to ##S:T; ".".( The piles shall have a standard arrangement for splicing either at one end or in case of sections other than end sections at both ends. 2hen such a splicing arrangement is made of structural steel the structural steel - welding shall conform to the #2S +1.1 .
".".< The piles shall be straight, free from an surface defects such as cracks, $ssures, e0posed loose aggregate or an other
PT.TRUBA JAYA ENGINEERING
DOCUMENT NO: P-T3113-QC-CW-003
PC SPUN PILE PILING PROCEDURE
DATE :
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unacceptable =aw. The piles shall be inspected ointl b the 6ngineer and the pile driving ontractor - a preliminar acceptance certi$cate shall be obtained b the ontractor. This however shall not absolve the pile supplier of his responsibilit about the qualit of pile. The $nal acceptance certi$cate shall be obtained onl after the pile section has been driven. ".". #ll pile sections shall be strong enough to withstand the pile driving force - shall not loose their integrit upon driving under the normal circumstances. The pile heads shall withstand the impact of hammer without showing cracks, deformations and disintegration upon driving under normal circumstances. &f such an incidence is noted, the 6ngineer shall carefull e0amine the driving circumstances - shall give his decision about the qualit of the pile section. The pile section found unacceptable in qualit shall not be paid. ".3 'ethod for :andling P Spun Pile 'aterial ".3.1 Pile Stocking 5or the stock pile, in advance, make ground stable and evenl level and then chock out with timber as below. 'a0imum stock shall be 3 stores height.
L/4
L/2
L
L/4
PT.TRUBA JAYA ENGINEERING
DOCUMENT NO: P-T3113-QC-CW-003
PC SPUN PILE PILING PROCEDURE
DATE :
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UNIT ISSUING :
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APPROVED BY : SITE MANAGER
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".3." Pile ifting ".3.".1 The pile section to be driven shall be lifted at the speci$ed point meant for such purpose. #n damage occurring to a pile section during this shall be the responsibilit of the ontractor. ".3."." ifting pile shall be at the triangular sign, space should not to far awa from the crane and area shall be free from other surrounding disturbances
1/3 L
2/3 L
".( Piling 6quipment Piling equipment consist of but not limited to % •
+riving *ig
•
:ammer >2++ 8.) or 6quivalent
•
ap and 2ooden ushion.
".< Surve 6quipment ?ormall the following surve equipment are used for piling work but not limited to % •
Theodolite or Total Station.
PT.TRUBA JAYA ENGINEERING
DOCUMENT NO: P-T3113-QC-CW-003
PC SPUN PILE PILING PROCEDURE
DATE :
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UNIT ISSUING :
REVISI
APPROVED BY : SITE MANAGER
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! OF 9
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#uto evel
•
'easuring Tape.
•
'arking Stick @ Paint @ olor Pen.
0
". Transportation 6quipment The following tools shall be prepared b contractors before and during piling work but not limited to % Service rane.
•
•
Trailer Truck.
•
Supporting 6quipment %
! 2heel loader A if needed B. ! 60cavator A if needed B.
". The bearing capacit f or pile shall be calculated b 6?* formula % *a C
1 FS
x
WxH S +
(0.5 xK )
where % *a
C #llowable bearing capacit of pile AtonB
5S
C Safet 5actor
2
C :ammer 2eight AtonB
:
C *am Stroke AcmB
S
C 5inal Set or penetration per blow AcmB
D
C 5inal *ebound AcmB
".8 >oint of Pile ".8.1 2hen it is required to splice a pile section to achieve either the driven length or to achieve a EsetE, the splice shall be done as per the method of splicing speci$ed b the pile manufacturer and shall be inspected b the 6ngineer. &f such method of splicing involves welding, the welding should be done as per the standards. 2elding shall be done after contractor submit their 2PS, P4* and welder certi$cate as per #2S +1.1 and shall be approved b lient @ ;wner representative.
PT.TRUBA JAYA ENGINEERING
DOCUMENT NO: P-T3113-QC-CW-003
PC SPUN PILE PILING PROCEDURE
DATE :
PAGE
UNIT ISSUING :
REVISI
APPROVED BY : SITE MANAGER
QAQC
" OF 9
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".9 Pile +riving ".9.1 >ust before driving, each pile shall be checked for straightness, cracks and other defects. ".9." The pile location shall be as per approved drawing - shall be set out b contractor and checked b the lient Surveor. The ontractor shall be responsible for clearing the site of an temporar obstructions to move the driving equipment to a suitable position from which the pile can be driven. ".9.3 Pre boring shall be done ust before Piling with depth that is checked and approved b the 6ngineer after con$rmation b ivil +esign. ".9.( &n principle, pile driving shall be e0ecuted in the presence of representatives. ".9.< &t is preferable to drive piles from the center of site to itFs perimeter to avoid refusal. +ue to the compaction eGect b the previousl driven piles. ".9. Piles shall be moved from its storage area to the pilling machine with special care to avoid damage to the pile. ".9. Piles shall be hung properl to avoid causing damages to them. ".9.8 The pile section to be driven shall be held true to the position in which it has to be driven. The 6ngineer ma check verticalit, at his discretion - shall instruct the contractor about the recti$cation if needed. ".9.9 Piles shall be driven plumb or to the designed angle, and shall not be e0cessivel pulled into line after driving. ".9.1) Proper cushion, preferabl pine, shall be used to protect the pile head, and to transmit the blow of hammer uniforml to the pile head. The cushion shall be changed at proper intervals. ".9.11 &f the following matter happens, the Sub!contractor shall immediatel inform 6ngineer. #ll deviations shall be reported b the 6ngineer to ivil +esign and their opinion on the matter shall be sought, regarding the recti$cation including driving an additional pile if necessar. &n such case the cost of
PT.TRUBA JAYA ENGINEERING
DOCUMENT NO: P-T3113-QC-CW-003
PC SPUN PILE PILING PROCEDURE
DATE :
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UNIT ISSUING :
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APPROVED BY : SITE MANAGER
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the pile driven in wrong location, including the material,shall be recovered from the ontractor.
".9.1" Piles shall be driven to a speci$ed EsetE A$nal set is less than < cm per 3 0 1) blowsB, total blows per ).< mF not e0ceed <)), total blows for total length not e0ceed 18)) or to a length as speci$ed on the design drawings provided b lient @ 6ngineer. The pile should be driven up to the pile driving elevation as speci$ed on the drawings. #ll such levels shall be checked and approved b the 6ngineer. ".9.13 &f a pile is cracked, broken, or otherwise damaged or driven out of plumb or designed angel, e0tra pileAsB shall be driven as directed b the lient representatives at the Sub! contractorFs own e0pense. ".9.1( 2elding of pile oint shall be inspected and recti$ed b 6ngineer before epo0 and driving into appropriate depth or HsetF. ".9.1< #fter a pile group is driven the contractor shall clear all his equipment, material, wood scantlings or an other debris from the pile group location. ".9.1 The contractor shall carr out a pile load test either static or dnamic 3 I from total pile driven. 3. "EA#RE"ENT AND RECORD The following shall be measured and reported for ever pile at the designed driving length or near to it. 3.1 *ebound. 3." 5inal set. 3.3 Penetration with relevant information as follows but not limited to % 3.3.1 &denti$cation number of pile Aas shown in piling planB. 3.3." Tpe and length of pile. 3.3.3 Tpe of hammer.
PT.TRUBA JAYA ENGINEERING
DOCUMENT NO: P-T3113-QC-CW-003
PC SPUN PILE PILING PROCEDURE
DATE :
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UNIT ISSUING :
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APPROVED BY : SITE MANAGER
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3.3.( +ropping height of hammer. 3.3.< ength of pile as driven at measured from the average set of the last 3 0 1) blows. The sub contractor shall submit the report required to the 6nginer on ever pile driving da. (. "ET%OD FOR TET PILING (.1 The procedure speci$cation for testing of Piling 2ork shall conform the requirements of #ST' + 11(3. (." The direct Pile +riving #nalsis AP+# testB shall be prepared and shall be approved b lient representative.
