Q.53 The working life of dam built to store irrigation requirement is expected to be 100 yrs. The spillway capacity is designed to accommodate the peak flood having a return period of 500 yrs. Calculate the risk of failure of the dam.

Q.53 The working life of dam built to store irrigation requirement is expected to be 100 yrs. The spillway capacity is designed to accommodate the peak flood having a return period of 500 yrs. Calculate the risk of failure of the dam.

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

Concepts of Flood Control

Flooding is a temporary overflow of water that submerges or covers the the usually dry land. It can also be defined as the overflow of the excess amount of water that covers a huge area of land which is normally dry.

Question

50 year flood = 225 m³/s
100 year flood =
225+
(250-225)
(1-0.98)
x (0.99-0.98) = 237.5 m³/s
Q.53 The working life of dam built to store irrigation requirement is expected to be 100 yrs. The spillway
capacity is designed to accommodate the peak flood having a return period of 500 yrs. Calculate
the risk of failure of the dam.

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