西藏旁多水利枢纽坝基深厚覆盖层渗透稳定性研究  

Study on seepage stability of deep overburden for dam foundation of Pangduo hydro project in Tibet

作　　者：杨春璞[1] 宣树学[1] 

机构地区：[1]中水东北勘测设计研究有限责任公司,吉林长春130021

出　　处：《东北水利水电》2009年第6期4-8,共5页Water Resources & Hydropower of Northeast China

摘　　要：由于坝基为深厚覆盖层,因受到技术经济条件的制约,,不能采用完全封闭的基础处理措施,因此带来坝基的渗漏及渗透稳定问题。文章通过对旁多水利枢纽深厚覆盖层渗透稳定进行分析,突破规范规定提出冰水堆积层的允许比降值选用0.4为宜。Because of the deep overburden and technic-economical condition restriction,the completely closed foundation treatment measures cannot be adopted,which is lead to the dam foundation seepage and its stability problems.By analyzing the seepage stability of deep overburden for Pangduo hydro project,the paper puts forward the allowable gradient ratio of ice water accumulation breaking through the criterion,that the value 0.4 is the suitable.

关 键 词：深厚覆盖层 冰水堆积物 渗透稳定 水力比降 

分 类 号：TV698[水利工程—水利水电工程]