Question

A gravity dam of elementary profile is made of concrete of specific gravity 2.5. The safe allowable stress of foundation material 3.87 MPa. If uplift is acting linearly at the bottom of the dam, limiting height of the gravity dam will be

• A. 225 m
• B. 113 m
• C. 263 m
• D. 158 m

Answer 1

The correct option is D 158 m

$H=\frac{f}{{\gamma }_w(G+1-C)}$

$H=\frac{3.87\times {10}^3}{9.81(2.5+1-1)}$

$=157.79m$