文章通过对彰武水库大坝除险加固前后在相同库水位与不同库水位下的测压管水位、坝后渗流量进行对比分析,论证了水库大坝经过对上游坝坡塌坑处理、防渗土工膜铺设和坝基采用塑性混凝土垂直防渗墙等防渗措施后,测压管水位明显下降,渗流量明显减小,防渗效果显著,提高了大坝的安全系数,保障了大坝的安全运行。 By comparing and analyzing the piezometric level and the seepage after the dam under the same reservoir water level and different reservoir water level before and after the reinforcement of the Zhangwu reservoir dam, the article proves that the reservoir dam has been treated by collapse treatment of the upstream dam slope, Impermeability measures of infiltration geomembrane and plastic concrete vertical seepage control wall dam foundation, the piezometer water level dropped significantly, seepage flow decreased obviously, seepage prevention effect is significant, improve the safety factor of the dam to protect the dam safe operation.