Problem 4: A group of piles are arranged as shown on the next slide. The piles are circular in cross section with diameters of 0.35 m and lengths of 20 m. They are equally spaced at 0.80 m on centers. They are to be driven in clay soil of 18.5 kN/m3 weight per unit volume. Cohesion of the soil is given to be 60 kN/m?, a = 0.60, bearing capacity factor, Nc = 9, Factor of Safety = 3. a) Determine the design capacity of the group of piles considering the piles act individually. b) Calculate the allowable capacity of the piles if the group act as a block using Bowles Analysis and Design, c) Compute for the minimum pile spacing to be 100%.

Problem 4: A group of piles are arranged as shown on the next slide. The piles are circular in cross section with diameters of 0.35 m and lengths of 20 m. They are equally spaced at 0.80 m on centers. They are to be driven in clay soil of 18.5 kN/m3 weight per unit volume. Cohesion of the soil is given to be 60 kN/m?, a = 0.60, bearing capacity factor, Nc = 9, Factor of Safety = 3. a) Determine the design capacity of the group of piles considering the piles act individually. b) Calculate the allowable capacity of the piles if the group act as a block using Bowles Analysis and Design, c) Compute for the minimum pile spacing to be 100%.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.

Question

Problem 4:
A group of piles are arranged as shown on the next
slide. The piles are circular in cross section with
diameters of 0.35 m and lengths of 20 m. They are
equally spaced at 0.80 m on centers. They are to be
driven in clay soil of 18.5 kN/m3 weight per unit
volume. Cohesion of the soil is given to be 60 kN/m?,
a = 0.60, bearing capacity factor, Nc = 9, Factor of
Safety = 3.
a) Determine the design capacity of the group of
piles considering the piles act individually.
b) Calculate the allowable capacity of the piles if
the group act as a block using Bowles Analysis
and Design,
c) Compute for the minimum pile spacing to be
100%.
0.80 m
0.80 m
0.80 m
0.80 m

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