关键词: 李家峡大坝, 超载加固, 工作性态, 评价

Abstract: Combined with current situation of reinforcement by anchor cable at the left abutment of Lijiaxia arch dam, prototype observation test results and simulation by FEM were used to evaluate the reinforcement effect. By analysis, the conclusion was gotten that after the reinforcement, the original tensile stress in the reinforcement area reduced or turned into compressive stress, or the compressive stress increased and the stress distribution was becoming homogenized. As a result, the reinforcement enhanced the stability of the left abutment.

Key words: Lijiaxia dam, overload, working behavior, evaluation