Sliding and Overturning Safety Factors of Concrete Gravity Dam under the Influence of Drainage Specifications

Ensuring of the proper functioning of concrete dams is one of the most challenging issues of today's engineering world. A concrete gravity dam is facing with a variety of failure mechanisms include dam sliding on the structure and foundation interaction surface and overturning. Two mentioned mechanisms are discussed in this study. Sliding and overturning safety factors are calculated for Shafarud dam with a height of 150 meters, under construction, placed in Gilan, north of Iran. Loads are include hydrostatic force, hydrodynamic and earthquake. Also the effect of various parameters on the safety factors such as drainage performance coefficient, drainage location and reservoir water level will be discussed. The results in general show very good performance and achieving high safety factor for the dam. But in the case of full reservoir slide-resistant was inadequate in some cases.

Keywords:

Concrete Gravity Dam , Drainage , Sliding , Overturning ,