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湖南怀化市桂化水库建于1958年,坝高16m,库容40万m~3,长期运行后,在1986年发现库内左岸有3处溶洞漏水,先用混凝土填筑14m~3,耗资2600元而未成。同年11月采用黄土夹塑料薄膜处理溶洞漏水,取得了理想的效果。处理方法如下:挖深1.2m(周边挖到硬土),洞口用石块卡紧,填土0.8m 厚,整平、夯紧、铺上第一层聚乙烯薄
Built in 1958, the dam of Guihua in Huaihua City, Hunan Province has a height of 16m and a storage capacity of 400,000m 3. After long-term operation, it was found in 1986 that there were 3 cave leacocks on the left bank of the reservoir. First, concrete was used to fill 14m 3, costing 2600 Yuan failed. The same year in November using loess folder plastic film processing cave leakage, and achieved the desired results. Processing methods are as follows: 1.2m digging depth (dug around the hard soil), the hole with a block chuck, filling 0.8m thick, leveling, tightening, laying the first layer of polyethylene thin