湿化效应对沥青混凝土心墙坝的应力变形影响  

Effect of Humidification on Stress Deformation of Earth-rockfill Dam with Asphalt Concrete Core

作　　者：王登银[1] 王永明[1] 孙义[2] 潘如意[1] 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098 [2]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《水电能源科学》2008年第4期112-115,共4页Water Resources and Power

摘　　要：对冶勒沥青混凝土心墙坝蓄水变形及实际运行中存在的问题进行了有限元仿真计算。分析结果表明,在蓄水湿化变形后,坝体的最大沉降区域向心墙上游侧偏移,上游侧坝体围压显著降低,坝体应力水平增大。这与大坝变形规律较吻合,具有一定的工程参考价值。Aiming at problems of deformation during reservoir impounding and in practical application , Yele earth-rockfill dam with asphalt concrete core is simulated by using the finite element method. Analyses show that after water storage the maximum dam settlement area is toward upstream core wall , the confining pressures of upstream dam obviously decrease while the stress levels increase, the results of which fitting well with dam monitoring data. Therefore, the research results have considerable reference value in engineering.

关 键 词：冶勒沥青混凝土心墙坝 粗粒料湿化 仿真计算 大坝监测 

分 类 号：TV641.4[水利工程—水利水电工程]