This middle scale reservoir is built in a natural blind valley without a dam, and in view of engineering handling, the major measure is high pressure grouting assisted by other methods to deal with karst and seal subterranean rivers.

• 工程上五里冲水库是以帷幕高压灌浆技术为主辅以其它多种方法处理溶洞及封堵地下河 ,利用天然盲谷成库的一座无大坝中型水库。