The crest of an overflow spillway crest is at elevationof 136.00 m and a horizontal apron at an elevationof 102.00 m on the downstream side. Calculate thetailwater elevation required to form a hydraulicjump when the elevation of the energy line justupstream of the spillway crest is 138.00 m. AssumeC = 0.735 for the spill way. Neglect energy loss dueto flow over the spillway.CSScanned with CamScanner

Given:- elevation=136.0m horizontal apron elevation=102.00m Cd=0.735 To find:- tailwater elevation

The crest of an overflow spillway crest is at ele of 136.00 m and a horizontal apron at an ele of 102.00 m on the downstream side. Calcula tailwater elevation required to form a hy jump when the elevation of the energy li

The crest of an overflow spillway crest is at ele of 136.00 m and a horizontal apron at an ele of 102.00 m on the downstream side. Calcula tailwater elevation required to form a hy jump when the elevation of the energy li

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

Spillway design

A spillway is the overflow portion of the dam that carries the surplus discharge flow from the reservoir to the downstream, that is, it carries the flood water safely downstream, which is enough to be stored in that reservoir. Therefore, it acts as a safety valve for the dam because many failures of the dam arise due to the incorrect design of the spillway.

Question

The crest of an overflow spillway crest is at elevation
of 136.00 m and a horizontal apron at an elevation
of 102.00 m on the downstream side. Calculate the
tailwater elevation required to form a hydraulic
jump when the elevation of the energy line just
upstream of the spillway crest is 138.00 m. Assume
C = 0.735 for the spill way. Neglect energy loss due
to flow over the spillway.
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