Hiley Formula For Driven Pile (temp Comp).xlsx

Hiley Formula - Computation of Pile Set Project: Matang New Township Pile Type: RC square pile Pile Size(B)/Diameter( Size(B)/Diameter(D) D) Pile Worin! "oa# Supply Pile "en!t\$ 0.20 m 45 tonnes 19 m (D/B) B Set Criteria: Pult  ef  / ( /  ! "# \$C1 # C2 # C%&'2 " ef  / ( /   ! Pult ( # \$n2 / (p& ( # (p ( # \$n2 / (p& ( # (p ) \$C1#C2#C%&'2 where* Pult ( (p (a n            s C1 C2 C%     CT = C1+C2+C3 = assume to total te temporary co compression (m (m) = 0.027 m  0.01

March 2019

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Hiley Formula - Computation of Pile Set

Project:
Matang New Township

Pile Type: RC square pile
Pile Size(B)/Diameter(D)
Supply Pile Length

0.20 m
45 tonnes
19 m

B

(D/B)

Set Criteria:

Pult

=

ef * W * H

x

S+ (C1 + C2 + C3)/2
S

ef * W * H

=

x

Pult

W + (n2 * Wp)
W + Wp
W + (n2 * Wp)
W + Wp

- (C1+C2+C3)/2

where:
Pult

W
Wp
Wa
n
H

=
=
=
=
=
=
=
=
=
=

s
C1
C2
C3

=
=
=
=

CT = C1+C2+C3

=

assume total temporary compression (m)

=

0.026 m

=

0.017067 m

Psafe
FOS
ef

ef* W * H

Psafe * FOS
=
=
factor of safety
=
hammer efficiency
=
weight of ram/hammer
=
weight of pile
=
weight of driving assembly
=
coefficient of restitution
=
drop of hammer
=
H = 2*H' for diesel hammer
(H' = drop of ram)
pile penetration for last blow or "set" (m)
temporary compression allowance for pile head

900,000 N
450,000 N
2
0.8
16,000 N
18,240 N
5,000 N
0.4
1.2 m

or cap (m)

temporary compression allowance for elastic deformation of pile shaft (m)

temporary compression allowance for quake of ground (m)

Pult
W + (n2 * Wp)
W + Wp

=

0.503

m

(C1+C2+C3)/2

=

0.013

m

s

=

-4.63

mm

Set per 10 Blow:

=

-46

mm

Therefore:

*refer to database sheet

*refer to database sheet

0.006 m
0.016 m
0.005 m

0.22 in
0.62 in
0.20 in

000 lb/in2 or 10.3048m & 1 inch = 25.05 0.850.10 0..15 to 0.5 Pile/cushion Material Coefficient of restitution . Chiam T.000 kPa) Note: * If these devices are used in combination.4 Steel 0. the compression should be added together.05 0.4mm (Source: A Guide on The Control of The Installation of Driven Pile. 1st Edition. L measure in feet 1 feet = 0.006L 0.15 0.8 0.30 1 in/25.500 kPa) Pile Length Cp Quake Cq E= Pre Cast concrete pile.000 kPa) 0.003L 0.05 to 0.03 0.009L 0.07 0.20 Short dolly in helmet or driving cap* 0.016L 0.012L Steel Pile.25 0.25 Concrete 0.4mm pad only on head of reinforced concrete pile 0. Ting W.012L 0. Length.790.8 Temporary Compression.07 0.6-0.342.15 0.T.009L 0.10 Hard Driving (inch) 0.006L 0.500.9 0. (E = 2.H.05 Medium Driving (inch) 0.2mm packing under helmet or driving cap* 0. Ir.10 0.. Steel tube or steel mandrel for cast in place pile.000. 1976) Coefficient of restitution Wood 0.012L Ground surrounding pile and under pile point 0.15 Material Head of Timber Pile Pile Head & Cap Cc Timber Pile (E = 1.15 Very Hard Driving (inch) 0.22 0.20 3 in/76.008L 0. Ir.000 lb/in2 or E = 206.000 lb/in2 or E = 13.10 to 0. Dr. ɳ (%) Poor Normal Good 55 70 85 Hydraulic (based on Potential Single Acting Energy) Double Acting 65 80 95 Free Fall 40 50 60 Drop (based on Potential Energy) Lifted Fall 20 30 40 Single Acting 15 25 35 Diesel (based on rated Energy) Double Acting 20 30 40 *Recommended Hammer Efficiency from Piling Handbook (Traswaja) Pile Driving Hammer Type Type of Hammer Drop Hammer (triggered fall) Steam or compressed air hammer Drop Hammer (winch operated) Diesel Hammer Power efficiency 1 0.004L 0. (E = 30.003L 0. C = Cc + Cp + Cq Form of compression Easy Driving (inch) 0.05 0.Hammer Efficiency Hammer Efficiency.000.20 0.

4-0.3-0.4 0.concrete or iron wooden cushion/steel piles wooden piles 0.25-0.3 .5 0.

011 m s = 0.Computation of Pile Set Project: Baryte Silo Concrete Pad.000 N weight of pile = 28.023 m = 0.000 N factor of safety = 2 hammer efficiency = 0.Hiley Formula .004 m 0.023182 m Psafe FOS ef ef* W * H ultimate load capacity Psafe * FOS = 660.85 weight of ram/hammer = 30.(C1+C2+C3)/2 where: Pult W Wp Wa n H = = = = = = = = = = s C1 C2 C3 = = = = CT = C1+C2+C3 = assume total temporary compression (m) = 0.15 in 0. Location 2.6 m H = 2*H' for diesel hammer (H' = drop of ram) pile penetration for last blow or "set" (m) temporary compression allowance for pile head or cap (m) temporary compression allowance for elastic deformation of pile shaft (m) temporary compression allowance for quake of ground (m) Pult W + (n2 * Wp) W + Wp = 0.000 N safe/permissible working load = 330.526 m (C1+C2+C3)/2 = 0.004 m 0. Nippon Oil Pile Type: RC Square Pile Pile Size(B)/Diameter(D) Pile Working Load Supply Pile Length 0.20 m 33 tonnes 30 m B (D/B) Set Criteria: Pult = ef * W * H x S+ (C1 + C2 + C3)/2 S ef * W * H = x Pult W + (n2 * Wp) W + Wp W + (n2 * Wp) W + Wp .89 mm Set per 10 Blow: = 9 mm Therefore: *refer to database sheet *refer to database sheet 0.000 N coefficient of restitution = 0.800 N weight of driving assembly = 10.015 m 0.4 drop of hammer = 0.15 in .59 in 0.

(C1+C2+C3)/2 where: Pult W Wp Wa n H = = = = = = = = = = s C1 C2 C3 = = = = CT = C1+C2+C3 = assume total temporary compression (m) = 0.023 m = 0.018182 m Psafe FOS ef ef* W * H ultimate load capacity Psafe * FOS = 660.000 N coefficient of restitution = 0.004 m 0.4 drop of hammer = 1.0 m H = 2*H' for diesel hammer (H' = drop of ram) pile penetration for last blow or "set" (m) temporary compression allowance for pile head or cap (m) temporary compression allowance for elastic deformation of pile shaft (m) temporary compression allowance for quake of ground (m) Pult W + (n2 * Wp) W + Wp = 0.000 N safe/permissible working load = 330.59 in 0.015 m 0.Computation of Pile Set Project: Baryte Silo Concrete Pad. Location 2.446 m (C1+C2+C3)/2 = 0.15 in .20 m 33 tonnes 30 m B (D/B) Set Criteria: Pult = ef * W * H x S+ (C1 + C2 + C3)/2 S ef * W * H = x Pult W + (n2 * Wp) W + Wp W + (n2 * Wp) W + Wp .000 N factor of safety = 2 hammer efficiency = 0.800 N weight of driving assembly = 10.15 in 0.21 mm Set per 10 Blow: = -32 mm Therefore: *refer to database sheet *refer to database sheet 0.000 N weight of pile = 28.011 m s = -3. Nippon Oil Pile Type: RC Square Pile Pile Size(B)/Diameter(D) Pile Working Load Supply Pile Length 0.6 weight of ram/hammer = 20.Hiley Formula .004 m 0.

526 m (C1+C2+C3)/2 = 0.20 m 33 tonnes 30 m B (D/B) Set Criteria: Pult = ef * W * H x S+ (C1 + C2 + C3)/2 S ef * W * H = x Pult W + (n2 * Wp) W + Wp W + (n2 * Wp) W + Wp .011 m s = 1.9 m H = 2*H' for diesel hammer (H' = drop of ram) pile penetration for last blow or "set" (m) temporary compression allowance for pile head or cap (m) temporary compression allowance for elastic deformation of pile shaft (m) temporary compression allowance for quake of ground (m) Pult W + (n2 * Wp) W + Wp = 0.023 m = 0.Computation of Pile Set Project: Baryte Silo Concrete Pad.000 N coefficient of restitution = 0. Location 2.000 N factor of safety = 2 hammer efficiency = 0.(C1+C2+C3)/2 where: Pult W Wp Wa n H = = = = = = = = = = s C1 C2 C3 = = = = CT = C1+C2+C3 = assume total temporary compression (m) = 0.61 mm Set per 10 Blow: = 16 mm Therefore: *refer to database sheet *refer to database sheet 0.015 m 0.15 in 0.800 N weight of driving assembly = 10.4 drop of hammer = 0.15 in .6 weight of ram/hammer = 30.024545 m Psafe FOS ef ef* W * H ultimate load capacity Psafe * FOS = 660.59 in 0.Hiley Formula . Nippon Oil Pile Type: RC Square Pile Pile Size(B)/Diameter(D) Pile Working Load Supply Pile Length 0.000 N weight of pile = 28.000 N safe/permissible working load = 330.004 m 0.004 m 0.