回龙山水电站大坝建于鸭绿江支流浑江上,系混凝土重力坝,坝高35米,坝顶长576米。该工程于1969年5月开工,1972年9月下闸蓄水,当年10月第一台机组发电。截至目前为止,已正常运行11年,大坝基础安全无恙。因大坝部分坝段建在石灰岩溶洞上,本文主要介绍在坝基中溶洞出露规模最大的~#7～~#10坝段的溶洞处理及处理后运行情况。 Back to Longshan Dam Dam was built in the Yalu River tributary of the Hunjiang, Department of concrete gravity dam, dam 35 meters high, the crest of 576 meters long. The project started in May 1969, the floodgates were closed in September 1972 and the first generating unit was in October of that year. So far, it has been operating normally for 11 years and the dam foundation is safe and sound. Because some dam sections are built in limestone caves, this paper mainly introduces cave treatment and post-treatment operation of ~ # 7 ~ # 10 dam with the largest caverns exposed in the dam foundation.