The stability of slopes of earth dams is checked under the following conditions: 1. Downstream under Steady Seepage 2. Determination of Pore Pressure at the Bottom of each Slice 3. Upstream Slope under Sudden Drawdown 4. Upstream and d/s Slopes during and Immediately after Construction. 1. Stability of Downstream Slope under Steady Seepage: When the reservoir on the u/s side [...]
In this article we will discuss about:- 1. Introduction to Earth Slope 2. Definition of Factor of Safety 3. Types 4. Friction Circle Method 5. Taylor's Stability Number and Stability Charts 6. Improving the Stability. Introduction to Earth Slope: An earth slope is an unsupported inclined surface of a mass. Earth slopes may be formed naturally, as for a hill [...]
Figure 17.3 shows an infinite slope with a failure surface at depth z, parallel to the slope. Consider a unit length perpendicular to the slope. Consider a soil element ABCD of width "b" along the slope. So the volume of the element will be – V = zb cos β.1 = zb cos β and the weight of the slice, [...]