A cellular cofferdam of 8.4 m radius and 15 m height is proposed for flood protection. Properties of the selected fill material are as follows: . Friction angle (p')=30° . Cohesion (c) = 0 • Unit weight after compaction (y)= 20 kN/m³ If sheet piles with a yield stress of 450 MPa and thickness 8.45 mm thickness and are used to construct the cofferdam, calculate the factor of safety against yielding. 4

A cellular cofferdam of 8.4 m radius and 15 m height is proposed for flood protection. Properties of the selected fill material are as follows: . Friction angle (p')=30° . Cohesion (c) = 0 • Unit weight after compaction (y)= 20 kN/m³ If sheet piles with a yield stress of 450 MPa and thickness 8.45 mm thickness and are used to construct the cofferdam, calculate the factor of safety against yielding. 4

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

A cellular cofferdam of 8.4 m radius and 15 m height is proposed for flood protection.
Properties of the selected fill material are as follows:
. Friction angle (p)=30°
• Cohesion (c) = 0
• Unit weight after compaction (y) = 20 kN/m³
If sheet piles with a yield stress of 450 MPa and thickness 8.45 mm thickness and are used to construct the cofferdam, calculate the
factor of safety against yielding.
Answer:
4

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