不同地质条件下重力坝扬压力等效模拟方法分析（“研究生论坛”稿件）

摘要:针对不同地质条件及不同超载系数情况下扬压力等效模拟方法的效果问题，使用地质力学模型试验与有限元计算相结合的方法，通过对均质地基及含有软弱结构面的复杂地基上的重力坝进行分析研究，对比分析地质力学模型试验、利用有限元进行计算的等效扬压力模型和实际扬压力模型（以下简称为等效模型和实际模型）所得结果，验证了不同地基条件及不同超载系数情况下扬压力等效模拟的可行性。成果表明，扬压力等效模拟的方法在均质地基和复杂地基的不同超载系数下均能较为合理的实现对重力坝扬压力的等效，应用于地质力学模型试验中是可行的。

Study on the EquivalentMethod for Simulating the Uplift Pressure ofGravity Dam Based on Different Foundations

Abstract: In order to research the effect of equivalent simulation in case of different geological conditions and different overloading coefficients,we used a method combined geomechanical model test with finite element method calculation.By analyzing the gravity dam on homogeneous ground and complicated foundation with weak structural planes, analysing the results of geomechanical model test,the equivalent uplift pressure model and the actual uplift pressere model which used the finite element method calculation to calculate,the feasibility of the equivalent simulation in case of different geological conditions and different overloading coefficients had been verified (here in after referred to as equivalent model and the actual model). The result showed that the equivalent simulation of uplift pressure was able to reach the equivalence of the gravity dam uplift pressure in different case of overloading coefficients on both homogeneous foundation and complicated foundation.So the equivalent simulation of uplift pressure is feasible to be applied togeomechanical model test.