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本文采用非线性三维有限单元法 ,综合多种稳定安全度评价方法 (点安全系数法、超载法及超载与强度储备相结合的综合法 )分析了小湾高拱坝的变形失稳及破坏发展过程。结果表明 ,小湾高拱坝点安全系数最小值约为 1 8,超载安全系数约 4 5 ,超载强储综合安全系数约 3 6。
In this paper, nonlinear three-dimensional finite element method is used to analyze the deformation instability and damage development of Xiaowan high-arch dam based on a comprehensive evaluation of various stability safety methods (point safety factor method, overloading method and combination of overload and strength reserve) process. The results show that the minimum safety factor of Xiaowan High Arch Dam is about 18, the safety factor of overloading is about 45, and the comprehensive safety factor of overloading and strong storage is about 36.