飞来峡水利枢纽土坝地震安全与可能溃坝模式研究

Feilaixia Dam Seismic Safety Studies with Possible Failure Modes

选取土坝3个典型断面,进行物理力学性能参数动三轴试验研究、动力有限元计算分析,综合分析其遇地震的安全性,最后针对不同断面进行可能溃坝模式的计算分析,提出可能的溃坝模式,并就不同断面提出其相应的安全监控指标,为大坝安全监测辅助决策系统提供重要数据。

Three typical dam sections have been selected to do a comprehensive analysis of the dam seismic safety by ways of stud -ying the mechanical properties of physical parameters of dynamic triaxial test and analyzing dynamic fonite element .In the last part of the paper , according to different possible failure modes calculation analysis , the writer puts forward possible failure modes and proposes the corresponding safety monitoring indicatons for different sections , which provides important data for the dam safety mo-nitoring decision support system .