下板地堆石坝深覆盖层沥青混凝土防渗心墙应力应变分析

Stress-strain analysis on asphalt concrete anti-seepage core wall on deep overburden

采用了有效的地震输入方式和等效粘弹性本构模型,对深覆盖层(147.95 m)沥青混凝土心墙土石坝进行了有限元动态特性分析,并着重对防渗墙的应力应变进行了分析研究,给出了大坝竣工期、水库蓄水期防渗墙的应力和变形随墙体参数变化而变化的规律,为防渗墙墙体材料的选择提供了理论依据。

Proper seismic excitation means and equivalent viscoelasticity constitutive model were adopted,and the FEA dynamic characteristics of asphalt concrete core rockfill dams on deep overburden(147.95 m) were studied in very detail in this paper.In the study,the characteristics of stress and displacement of the seepage prevention wall with deep overburden were analyzed.Final-ly,the rule of stress and displacement change according to characteristic parameters change of seepage prevention wall during en-gineering ...