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水库大坝一旦发生事故会对整个库区和下游造成不可估量的损失,大坝安全问题一直是研究和关注的焦点。以某混凝土重力坝为研究背景,利用极限平衡法及有限元法对大坝变形进行理论计算及数值模拟,分析了大坝极限水平位移与极限扬压力;通过对大坝实测扬压力和水平位移监测的数据分析表明,各监测数据未超过数值模拟结果,模型的选择与数值分析的结果都有一定的可靠性,可作为大坝技术人员分析大坝稳定情况的参考。
Once an accident occurs in a reservoir dam, it will cause immeasurable losses to the entire reservoir area and downstream areas. Dam safety issues have been the focus of research and attention. Taking a concrete gravity dam as the research background, the limit equilibrium method and the finite element method are used to carry out the theoretical calculation and numerical simulation of the dam deformation, and the ultimate horizontal displacement and the ultimate thrust pressure of the dam are analyzed. Based on the measured typhoon pressure and horizontal displacement Monitoring data analysis shows that the monitoring data do not exceed the numerical simulation results, the model selection and numerical analysis results have a certain reliability, and can be used as a reference for dam technicians to analyze the stability of the dam.