Rockmass Stability Analysis of YunYang’s Arch Dam Left Shoulder

Abstract

Arch dam abutment stability analysis of arch dam design, construction, is the primary problem of operation. From home, outside the related data that appear most, arch dam accident due to abutment instability caused by. On the engineering geological condition is suitable, the arch dam is safe and reliable, economic and reasonable and the broad masses of the people welcomed the dam type. But it must be based on abutment stability based on. Therefore in the arch dam design, there is a need for dam abutment rock mass are detailed and thorough exploration and stability analysis of. This paper adopts the rigid body limit equilibrium method based on arch dam on the left bank of the slide stability analysis and dam abutment stability analysis of arch dam plane, gives the dam safety stability evaluation. A cover of hyperbolic arch dam, the dam height is 163.00m, is a type of buildings. The engineering geological conditions in the dam area is more complex, the existence of multiple faults, joints, fissures, karst cave is developed. Study of a dam on the left abutment stability, reliability and stability of project evaluation is a very important technical and economic significance.