【摘要】 考虑坝段实际成层浇铸过程和温度徐变作用下坝段横缝的非线性接触问题,采用薄层接触单元模型,利用三维有限单元法对高拱坝陡坡坝段(只存在横缝)三种分缝设置模型进行温度徐变应力仿真分析,依据拉应力最小及分缝拐角距拱端最小距离原则,选择了最佳分缝方案。对横缝张开情况最佳方案的分析,为施工灌浆提供了参考依据。更多还原

【Abstract】 With considering the construction process of dam sections and nonlinear contact problems of transverse gaps under temperature load,laminar layer contact element model is applied to simulated analysis of temperature and creeped stress for three parting design model which only have transverse gaps.According to minimal tensile stress and minimal distance between arch abutment and the corner gap,the optimal model is elected.The open extent of transverse gap is analyzed and it provids a suggestion for construction grouting.更多还原