STABILITY ANALYSIS OF A CONCRETE GRAVITY DAM USING SHEAR STRENGTH REDUCTION METHOD.

In the design of a concrete gravity dam, the key problem is to provide adequate stability against sliding due to the operational loads. When a dam is built on a rock mass foundation with complex geology as in the case considered in this paper, the stability analysis problem becomes considerably complicated. The analytical solution of this problem is very difficult or impossible, so it is necessary to use appropriate numerical methods. To solve such a problem in the design of a concrete gravity dam on the Ibar River nearby Kraljevo, an algorithm for elastoplastic material model was adopted and implemented in the program PAK. In order to simulate the gradual loss of stability due to the rock mass strength reduction, the shear strength reduction method was implemented and used. The analysis shows that the calculated safety factor can reach the requirements of stability against the collapse in the deep foundation layers. [ABSTRACT FROM AUTHOR]