湖南省小陂流空腹重力坝节理非线性有限元分析  

Nonlinear Finite Element Analysis on joints of Xiaobeiliu Hollow Gravity Dam in Hunan Province

作　　者：范金星[1] 

机构地区：[1]湖南水利水电职业技术学院,湖北长沙410131

出　　处：《水利水电技术》2010年第2期38-41,共4页Water Resources and Hydropower Engineering

摘　　要：采用荷载转换的非线性迭代计算方法，用迭代解模拟节理真实的应力～变形特性，通过非线性有限元法计算分析湖南省小陂流浆砌石空腹重力坝在不同工况下的应力、位移，得到了其应力、位移矢量图及应力、位移等值线图，进而根据应力、位移特征和应力～应变变化过程对该坝结构安全、裂缝产生的原因和沿坝建基面抗滑稳定性进行分析，为大坝除险加固提供了正确的处理方法和可靠依据。With nonlinear iterative calculation method for load conversion, the stress and displacement of Xiaobeiliu Masonry Hollow Gravity Dam under various operation conditions axe analyzed through the nonlinear iterative calculation by simulating the real stress-deformation of the joints with iterative solution, and then the vector graph and the contour map of stress-displacement are obtained, and then the structural safety, the causation of cracking and the sliding resistance stability along the base surface of the dam are analyzed based on the characteristics of the stress-displacement and the stress-strain process ; which provides a reliable treatment method and basis for the risk elimination and strengthening of the dam.

关 键 词：节理 非线性有限元分析 裂缝 稳定性 小陂流空腹重力坝 

分 类 号：TV642.32[水利工程—水利水电工程]