A concrete dam retaining water is shown in Fig. 4-6a. If the specific weight of the concrete is 23.5 kN/m3, find the   a. factor of safety against sliding Blank 1 Answer in 2 decimal places b. factor of safety against overturning Blank 2 Answer in 2 decimal places c. maximum pressure intensity on the base in kN/m2 Blank 3 Answer in 1 decimal place d. minimum pressure intensity on the base in kN/m2 Blank 4 Answer in 1 decimal place   Assume there is no hydrostatic uplift and that the coefficient of friction between dam and foundation soil is 0.48.

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Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.