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湖南省临澧青山扩建水电站建于澧水河人工堆积洲上,基坑四面环水,砂卵石覆盖层厚26m,基坑施工排水是工程建设的关键。工程采用了高喷防渗墙堵水,基坑内设置排水导沟,分层分区用水泵排的方法,保证工程建设的顺利进行。
The Linqu Qingshan Hydropower Station in Hunan Province was built on the artificial accumulation continent of Huangshui River. The foundation pit is surrounded by water and the sand and gravel covering is 26m thick. The drainage of foundation pit construction is the key to the project construction. The project adopted a high-jet seepage cutoff wall to block water, and a drainage guide groove was set in the foundation pit. The method of sub-division of the pump row was adopted to ensure the smooth progress of the project construction.