A section of a masonry dam is shown below. If the uplift pressure varies uniformly fromfull hydrostatic at the heel, but acts only over two-thirds of the area of the base.Determine the followinga. weight of the damb. total hydrostatic forcec. uplift forcesd. location of vertical reactione. factor of safety against sliding( coefficient of friction between base and the foundationis 0.60)f. Factor of sfety agints overturningg. eccentricityh. maximum and minimum pressure at the basew.S21 m18 m10 m5 m5m7 m

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A section of a masonry dam is shown below. If the uplift pressure varies uniformly from full hydrostatic at the heel, but acts only over two-thirds of the area of the base. Determine the following a. weight of the dam b. total hydrostatic force c. uplift forces

A section of a masonry dam is shown below. If the uplift pressure varies uniformly from full hydrostatic at the heel, but acts only over two-thirds of the area of the base. Determine the following a. weight of the dam b. total hydrostatic force c. uplift forces

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

Braced cuts

The braced cut is a method of providing lateral support to the soil in foundation trenches, to prevent the trenches from deformation by the caving in of soil and resisting it from moving laterally. During shallow excavation in firm soil, generally, slopes are provided to resist the caving in of soil. During shallow excavation in soft soil and deep excavation, the chances of caving in of soil increase. Hence, it becomes necessary to make a provision to resist the deformation of trenches due to caving in of soil. The braced cut is the method used for such conditions. The excavation using braced cuts is a bit uneconomical as compared to the traditional open-cut excavation method but provides better safety than the cut excavation method.

Question

A section of a masonry dam is shown below. If the uplift pressure varies uniformly from
full hydrostatic at the heel, but acts only over two-thirds of the area of the base.
Determine the following
a. weight of the dam
b. total hydrostatic force
c. uplift forces
d. location of vertical reaction
e. factor of safety against sliding( coefficient of friction between base and the foundation
is 0.60)
f. Factor of sfety agints overturning
g. eccentricity
h. maximum and minimum pressure at the base
w.S
21 m
18 m
10 m
5 m
5m
7 m

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