The group pile will be developed without onsite static load tests. The soil conditions are consistent, and the site characterization program was Average. A single pile of that group with a circular shape is shown in the figure below. There are 4 rows of 3 piles with center-to-center spacing of 3 meters in the plan. First, calculate the allowable downward load capacity for a single pile and then find the group efficiency and calculate the allowable downward capacity. (use the table for finding skin friction)

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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The group pile will be developed without onsite static load tests. The soil conditions are
consistent, and the site characterization program was Average. A single pile of that group with a
circular shape is shown in the figure below. There are 4 rows of 3 piles with center-to-center
spacing of 3 meters in the plan. First, calculate the allowable downward load capacity for a single
pile and then find the group efficiency and calculate the allowable downward capacity. (use the
table for finding skin friction)
Silty Sand (SM)
kN
m³
Y = 17-
kN
Ysat 20-
Well Graded
Sand (SW)
kN
m³
Y = 20-
2.0
1.5
10.5
K
-0.6
Depth(m) N60
1
2.5
4
7
9
12
10
20
12
15
22
20
19
16 24
31
Transcribed Image Text:The group pile will be developed without onsite static load tests. The soil conditions are consistent, and the site characterization program was Average. A single pile of that group with a circular shape is shown in the figure below. There are 4 rows of 3 piles with center-to-center spacing of 3 meters in the plan. First, calculate the allowable downward load capacity for a single pile and then find the group efficiency and calculate the allowable downward capacity. (use the table for finding skin friction) Silty Sand (SM) kN m³ Y = 17- kN Ysat 20- Well Graded Sand (SW) kN m³ Y = 20- 2.0 1.5 10.5 K -0.6 Depth(m) N60 1 2.5 4 7 9 12 10 20 12 15 22 20 19 16 24 31
layer
No.
1
2
3
Depth
(m)
0-2
2-3.5
3.5-9
9-16
Z
(m)
B
0₂
(kPa)
fs
(kPa)
As
(m2)
Sum
fs As
(KN)
Transcribed Image Text:layer No. 1 2 3 Depth (m) 0-2 2-3.5 3.5-9 9-16 Z (m) B 0₂ (kPa) fs (kPa) As (m2) Sum fs As (KN)
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