Geomechanical model test study on stability of concrete arch dam

摘要

With the method of the combination of overload and strength-decreasing, the geomechanical model test about the stability of base and abutment is applied in this paper, and combined with the concrete double arch dam in Sichuan province. The destruction test is made to discuss the failure pattern, process and mechanism of the base and abutment stability, with the temperature analogous material simulating the weak structural planes. The degree of safety of the dam and the abutment is achieved. And the security of the project is evaluated.