Question

For the design flood of a spillway with an economic life of 14 years the accepted...

For the design flood of a spillway with an economic life of 14 years the accepted risk can be taken as 4.0%.

(a) Determine the return period of its design discharge.

(b) If the cofferdam with 4 years economic life of this large dam is designed with 10 years flood, determine the risk of this cofferdam.

(c) Find also the probability that the design flood of the cofferdam occurs at least 2 times in the lifetime of the spillway.

Engineering   Civil-Engineering   
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Answer #1

Risk = 1- ( 1 - 1/T )n

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