海子水库岩溶渗漏分析及帷幕灌浆防渗效果评价

Analysis on karstic seepage and evaluation on anti-seepage effect from curtain grouting for Haizi Reservoir

分析了海子水库岩溶渗漏情况及途径,根据水库渗漏量反算坝基等效渗透系数,对坝基帷幕灌浆效果进行评价,指出现状防渗帷幕存在的问题,为帷幕优化设计提供了地质依据。

Taking Haizi Reservoir as a study case,the karstic seepage causation and passage of the reservoir are qualitatively analyzed and the effect of the curtain grouting for the dam foundation is evaluated in accordance with the equivalent permeability coefficient of the dam foundation inversely calculated from the seepage of the reservoir;from which the existed problem of the anti-seepage curtain is pointed out,and then a better geological basis is laid for the optimized design of the grouting curtain as well.