Application of composite geomembrane in seepage control of slag dam
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摘要: 某水电工程堆渣坝坝体填筑料主要为建筑物开挖的砂岩风化料,坝体采用复合土工膜斜墙防渗,坝基设防渗帷幕。复合土工膜周边分别嵌入坝踵钢筋混凝土连接板、坝顶防浪墙、溢洪道左导墙内,与防渗帷幕形成封闭的防渗体系。工程建成后从蓄水运行情况看,坝体渗漏量略偏大,土工膜防渗效果有保障。Abstract: The filling materials of the slag dam in hydropower project mainly consist of weathered sandstone from previous excavation of the buildings. The dam with an inclined wall adopts the composite geomembrane to control seepage, while the dam foundation uses curtain. The composite geomembranes are respectively inserted into the connecting plate, wave wall and left guide walls of spillway around it, forming up a close seepage control system. Judging from the operation of the water storage after completion of the project, the seepage quantity of the dam is only slightly larger, and the sound seepage control status is ensured.
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Keywords:
- slag dam /
- composite geomembrane /
- inclined wall /
- seepage control
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