从长期过水实践和反演试验看石门拱坝坝后冲刷  

The scour at rear apron of Shimen Dam through overflow experience and inverse operation experiments

作　　者：李保华 李瓒 

机构地区：[1]陕西省汉中市水电局,陕西汉中723000 [2]西北水电勘测设计研究院,陕西西安710001

出　　处：《陕西水力发电》2000年第4期8-13,共6页Journal of Shaanxi Water Power

摘　　要：通过长期实践和反演试验，研究了石门拱坝投运２６年来坝后冲刷坑动态发展的全过程，解释了其形成的主要原因，并指出重现期３００年的特大洪水发生后，石门冲坑并未稳定，小于它的洪水仍旧造成了更深更危险的冲刷。The scour process at the rear apron of Shimen Dam is studied through review of operation practice and inverse operation experiments. The cause of scour is explained, the scour pot was not stable after the occurence of extreme flood with the return period of 300 years, and the flood may deepen the scour pot even more severe.

关 键 词：石门拱坝 坝后冲刷 反演试验 

分 类 号：TV698.7[水利工程—水利水电工程]