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作为十三陵蓄能电站下池的十三陵水库坝基复盖层渗漏严重,于1969年~1970年建混凝土防渗墙,取得了显著效果。但由于库区存在古河道,在较高水位情况下,库区渗漏仍很严重。1989年提出了下池防渗多种方案。经地质勘探和渗漏分析,对多方案进行比较,最后选定了浅墙防渗方案,以便与电站建设总工期相适应,并满足环境和景观要求。施工中首次采用了液压抓斗直接抓槽新技术,对防渗墙底伸入粘土层的鉴定和检查以及泥浆回收和重复利用等尤为注意。
As the lower reaches of the Shisanling Pumped Storage Power Station, the reservoir of the Ming Tombs Reservoir basement cover seepage was serious. The concrete seepage prevention wall was constructed from 1969 to 1970 and achieved remarkable results. However, due to the existence of ancient river courses in the reservoir area, the leakage in the reservoir area is still very serious at higher water levels. In 1989 proposed a variety of programs to prevent infiltration pool. After geological exploration and seepage analysis, the multi-schemes are compared and finally the light-seepage control scheme is selected so as to meet the total construction period of the power station and meet the requirements of environment and landscape. For the first time, a new technology of direct grasping by hydraulic grab was adopted during the construction, especially for the identification and inspection of the seepage prevention wall protruding into the clay layer, as well as the recovery and reuse of mud.