深厚覆盖层闸坝坝基的三维有限元渗流分析

结合一拟建的以深厚覆盖层为基础的闸坝枢纽工程,运用三维有限元法,进行了在采用全封闭式混凝土防渗墙地基防渗处理方案下的坝基稳定渗流分析。结果表明,采用此方案可以大部分或全部截断坝基中的集中渗漏,对于避免坝基覆盖层各层发生渗透破坏、减小坝基渗透流量均具有重要作用。

Study on Seepage of the Gate Dam on the Foundation of Deep and Overburden Layer With 3-D FEM

Combined with the sluice project which will build on the deep and thick overburden,the stable seepage of the foundation under the scheme of taking the full enclosed-type concrete cut-off wall was calculated with the 3-D finite element method.The calculation results shows that,through this scheme,it can hold up the full or a majority of the focus leakage of the foundation,and react the important function on avoiding the seepage breakage which could occur in the each layers of the overburden and reducing the seepage quantity of the sluice foundation.