新疆下坂地水库坝基深厚覆盖层防渗形式的论证分析

Demonstration and analysis of seepage prevention type for the deep covering over the dam foundation of Xiabandi Reservoir

通过对不同的防渗形式的论证分析，提出了适合于本工程实际的坝基防渗方案，为解决类似问题提供了有益的思考方法。

The depth of covering over the dam foundation of Xiabandi Reservoir is more than 150m, with a 43.7m think sand lens in the center. And there distributes two strata of lacustrine deposits. Because the geological condition of the dam is very intricate, the seepage prevention of the dam foundation is one of the difficult problem for the work. The different types of seepage prevention measures are demonstrated and analyzed in this paper, an optimal scheme is recommended which provides a method to treat this kind of problem.