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.
出处
《东北水利水电》
2009年第6期4-8,共5页
Water Resources & Hydropower of Northeast China
关键词
深厚覆盖层
冰水堆积物
渗透稳定
水力比降
deep overburden
ice water accumulation
seepage stability
hydraulic gradient ratio
