摘要
为分析汾河二库RCC重力坝应急除险加固后实际安全性态,建立典型工况下河床溢流坝段的三维有限元模型,采用COMSOL Multiphysics进行多场耦合分析。计算结果显示,渗流场、位移场和应力场总体规律正常,大部分区域在安全范围内,只有极少区域出现拉应力。研究表明,COMSOL Multiphysics可进行RCC重力坝多场耦合分析,除险加固达到预期效果,建议加强安全监测。
A three-dimensional finite element model for the spillway section on the riverbed is estab-lished to analyze the actual safety state of the RCC gravity dam of Fenhe secondary reservoir after emer-gency reinforcement. COMSOL Multiphysics is used for multi-field coupling analysis. The results showthat the overall law of seepage field, displacement field and stress field is rational. Most areas are safe,and only a few areas have tensile stress. Research shows that COMSOL Multiphysics can be applied tomulti-field coupling analysis of RCC gravity dam and the reinforcement has achieved the anticipated ef-fects. It is suggested to strengthen the safety monitoring.
出处
《大坝与安全》
2017年第6期24-29,共6页
Dam & Safety
基金
山西省水利厅科技项目(2015DSW2)
