Safety Evaluation of Whole Structure of Concrete Gravity Dam
In order to change the current gravity dam evaluation system which only focuses on the independent dam section and ignores the whole structure,the nonlinear finite element analysis model of the three-dimensional structure of a concrete gravity dam is established based on an actual foreign engineering project in this paper.Considering the dynamic nonlinear characteristics of concrete material and foundation rock mass,the contact nonlinear element is used to simulate the transverse joint state between different dam sections.By calculating and analyzing the displacement and stress of different dam sections,the response and failure mode of the dam under different load conditions are studied,and the safety performance of gravity dam in the whole dam sections is evaluated as a whole.The evaluation method adopted in this paper provides some reference for practical engineering,and the results are reasonable and effective.
NETL
NSTL
万方数据
维普
