Influence of Water Level Rise, on the Right Bank of Reservoir, on Slope Stability – A Case Study of DAGANSHAN Hydropower Project

Abstract

In this paper the stability of slope under the varying water level is taken into consideration.
For the case study the right bank of the reservoir of Daganshan hydropower is taken as the
study site. The analysis is done by the use of SEEP/W and SLOPE/W, implementing
Morgenstern-Price method for stability analysis. The slope stability is affected when the level
of water changes. The change in Factor of Safety with the rise in water level is obtained. Two
conditions of rise in water level are studied as fast and slow and the effect of different
condition is studied. The variation of factor of safety with the height of water level for both
situations is observed and thus the suitable condition is recognized.