土工膜防渗在水关河水库中的应用

Application of Anti-Permeable Techniques with Geo-Membrane in Shuiguan River Reservoir

搞要低密度聚乙烯土工膜是一种薄型、连续、柔软的防渗材料，具有质轻、伸长率大、防渗性能好、适应性强、施工简便、造价低廉等特点。水关河水库由于土坝建在强透水地基上，使水库渗漏严重，最多时日渗漏量达5840m3。经过一个冬季后，经常造成干库，致使春灌无水，严重影响厂当地的农业生产。水关河水库经土工膜防渗处理后，渗漏量由原来的69L／s减少到1L／s。

Geo-membrane of low density polyethylene is a thin and soft material with anti permeability. It has characteristic of lightweight, good elasticity, excellent anti-permeability,simple construction, and low cost. As Shuiguan river reservoir was built on the bed of powerful penetrability, seepage flow could reach maximum 5 840 m3 daily. There was not enough weter to irrigate the farm lands in the spring, so the local agricultural production was limited.