compression test pile (debond 12m)
TRANSCRIPT
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8/12/2019 Compression Test Pile (Debond 12m)
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Project C922 - Expo StationSubject Compression Pile CheckDesigner SuntharDate
Concrete (f cu ) = 40 N/mm2Max allowable concrete stress, 0.25 fcu = 10.0 N/mm2 7.5 N/mm ,so
Designed concrete stress = 7.5 N/mm2Factor of Safety = 2.5
Structural Capacity[mm] 800
[kN] 1465714657 kN OK!
Design Parameters: Skin friction, fs = 3.0 N 300 kPaEnd bearing, fb = 100N 10 000 kPa
Geotechnical PTP-1EGL 105.5 mRLSoil Average Skin Friction Shaft length Skin Friction
Description SPT value fs = 3N lshaft f s x lshaft x pDFrom To From To N kN/m [m] [kN]
105.50 105.50 0.00 0.00 Gravelly Silt 0 0 0.0 0105.50 102.50 0.00 3.00 Gravelly Silt 0 0 3.0 0102.50 99.50 3.00 6.00 Gravelly Sand 0 0 3.0 099.50 96.50 6.00 9.00 Gravelly Sand 0 0 3.0 096.50 93.50 9.00 12.00 Sandy Silt 0 0 3.0 093.50 90.50 12.00 15.00 Silty Sand 100 300 3.0 226290.50 87.50 15.00 18.00 Silty Sand 34 102 3.0 76987.50 84.50 18.00 21.00 Silty Sand 56 168 3.0 126784.50 81.50 21.00 24.00 Silty Sand 39 117 3.0 882
81.50 79.50 24.00 26.00 Silty Sand 60 180 2.0 905
Drill depth from GL (m) 26.00Cut-off Level (mRL) 105.500Pile length from C O L (m) 0 0 m 26 00
capacity 800 mm
Soil Depth in mRL (m) Soil Depth in mbgl
(m)
Pile Diameter
Pult = 0.40*fg*Ag+0.75*fy*As =
GEOTECHNICAL PILE LENGTH DESIGN
10/10/2011
Pile Size, D
Structural Capacityuse 16T40 (As=20106mm2)
PILE DEBOND UP TO 12.0m
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8/12/2019 Compression Test Pile (Debond 12m)
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GeoEng Consultants (S) Pte Ltd29 Tai Seng Avenue #06-04
REF: Natural Cool Lifestyle HubDESIGNED BY: DATE: Singapore 534119C HEC KED BY: DATE: TEL: 6546 6318 FAX: 6546 6319
Compression Capacity Check
Compressive strength of concrete at 28 days f cu = 40 MPa
Fs = 1
Pile Compression Ac' A s(provided) % (Qa) st Bar Spacing Remarks
Type (mm) Test Load (kN) (mm 2) (mm 2) As(provided) (kN) (mm c/c)
A 800 10921 482549 20106 4.00 16 T 40 14657 115 OK
7890 494801 7854 1.56 16 T 25 10626 118 OK
As(provided)
10/10/11
PROJ EC T: C922 Expo Station
Structural Capac ity ChecksSuntharDr. Ng
10/10/11
s st F
yAs fcuAcQa
75.0'4.0)(
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8/12/2019 Compression Test Pile (Debond 12m)
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Depth Load Rebar Capacity
0 10921 146573 10921 146576 10921 146579 10921 14657
12 10921 1465715 8659 1465718 7890 14657
18 7890 1062621 6623 1062624 5741 1062626 4836 10626
18
0
5
10
15
20
25
30
0 2000 4000 6000 8000 10000 12000 14000 16000 18000
D e p t h
Load
Pile Capacity
Geotechnical Capacity
Reinforcement Capacity
1 6 T 4 0
1 6 T 2 5