摘要
对于重力坝的抗滑稳定分析,根据现行规范中的分项系数法,给出了一种可用于有限元计算的安全系数表达式。在此基础上,结合具体的工程实例,分别用结构面循环加载本构模型和Cohesive单元对碾压混凝土大坝层面的力学性质进行模拟。结果表明,基于两种有限元模型所得的结果大致相当,说明两种模型都可以较好地模拟层面的力学性质。
A new expression of safety coefficient that can be used in FEM analysis is proposed based on the conception of partial coefficient and then is used to estimate the stability against sliding of a real RCC dam. Two kinds of FEM model is used in simulating the mechanical characters of RCC dam layer, which are the constitutive model under cyclic loading for interfaces and cohesive element. Computed results demonstrate that both models can simulate the mechanical characters of RCC dam layer successfully and they can get the same results.
出处
《水力发电》
北大核心
2008年第2期20-22,共3页
Water Power
基金
国家自然科学基金委员会和二滩水电开发有限责任公司雅砻江水电开发联合研究基金项目(50539020)
