基于长系列监测资料的堆石坝物理力学参数反演分析

Back Analysis on Physical and Mechanical Parameters of Rockfill Dam Based on Long-term Monitoring Data

利用狮子滩大坝40年的长系列安全监测资料,运用邓肯-张模型对坝体、坝基材料6个物理力学参数(,φc,K,G,F,D)进行了反演分析。反演参数与原设计参数相比,其量值有一定程度改变,但符合相应材料参数值的变化范围。

Back analysis is conducted by Duncan-Chang Model for six physical mechanics parameters (ψ,c,K,G,F,D) of dam and dam foundation materials based on 40-year long-term safety monitoring data at Shizitan dam . Comparing with original design parameters , parameters used in back analysis change to some extent , but still within range of variation for corresponding material parameters.