百色重力坝夏季停工方案温度应力仿真分析

Simulation Analysis of Thermal Stress of Baise RCC Gravity Dam under Summer Shutdown Scheme

为了模拟碾压混凝土重力坝薄层施工过程 ,采用三维有限元浮动网格法对百色碾压混凝土重力坝夏季停工方案施工期至运行期的温度场、温度徐变应力场进行了全过程仿真计算 ,结果表明 ,只要合理确定坝段长度 ,即使不采用降温措施 ,夏季停工方案是能满足设计要求的。

A whole process simulation calculation is done for the temperature field and creep thermal stress field of Baise RCC gravity dam from construction stage to operation stage under summer shutdown scheme by using 3D FEM relocating mesh method. The calculation results show that the summer shutdown scheme meets the design requirement without any temperature-decreasing measures, if a reasonable dam length is adopted.