富水水库大坝渗流安全评价

在分析富水水库大坝渗流观测资料和二维渗流有限元计算结果的基础上，对水库大坝的渗流状况进行安全评价。在正常高水位下，坝体及坝基的渗流状况基本稳定，但在下游高尾水位下，坝基产生局部渗透破坏在，设计水位和校核洪水们下，坝体下游坡将出现大面积散浸，下游覆盖层顶托渗透坡降较大，对下游坝坡稳定不利，坝上游粘土铺盖可能产生渗透破坏，坝基砂卵石层渗透破坏的范围可能扩大。

Seepage safety evaluation for Fushui Dam

Based on the seepage observation data and computation results of Fushui Dam using 2-D seepage finite element method, the seepage safety evaluation of the dam was carried out. Analyses show that the seepage is stable at a normal water level, and that local seepage failure occurs in the sandstone foundation at a high tail water level. At the design and check flood level, infiltration over a large area and a large seepage gradient in the downstream slope are found unfavourable to the safety of the downstream slope, seepage failure may occur in the clay blanket and seepage failure in the sandstone foundation may extend to a large scale.