衬砌船闸闸室接触有限元分析

Finite element analysis for contacting of lined lock chamber

基于有限元计算方法,以某航电枢纽工程为依托,采用非线性理论建立二维闸室结构仿真模型,分别在检修和低水运行工况下对高衬砌倒梯形闸室结构与岩基进行接触分析和计算。通过对接触状态及接触部位的应力分布研究,得到倒梯形衬砌式闸墙结构薄弱面可能在台阶处的主要结论。

Based on the finite element method,which is based on a navigation-power junction project,we adopt the nonlinear theory to establish the two-dimensional simulation model of lock chamber structure in maintenance and low water operation respectively for the contact analysis and calculation of highly lined inverted trapezoidal lock chamber structure and rock bed. According to the research on the stress distribution of the contact state and contact part,we draw the conclusion that the weak surface of the inverted trapezoidal lock chamber structure may be on the steps.