乌江渡水电站修建在岩溶发育的石灰岩上,防渗漏是工程中的一个主要问题。施工前对坝区岩溶发育规律、坝基上下游页岩岩组的阻水性能以及水文工程地质条件等,进行了大量勘探试验研究工作,为防渗漏工程的设计和施工提供了重要依据。电站开工后,在左岸深部发现了规模较大的岩溶洞穴,随之开展了专 Wujiangdu Hydropower Station is built on karst limestone. Anti-seepage is a major problem in the project. Before the project, a lot of exploration and experimental work were done on the law of karst development in the dam area, the water-blocking performance of the shale group on the upstream and downstream of the dam foundation and the hydrogeological engineering geological conditions, which provided an important basis for the design and construction of the anti-seepage project. After the power station was started, a large-scale karst cave was found deep in the left bank, followed by a special