水科学与水工程2008，Vol.1Issue(2)：76-87,12.DOI:10.3882/j.issn.1674-2370.2008.02.008
Risk analysis for earth dam overtopping
Risk analysis for earth dam overtopping
摘要
Abstract
In this paper, a model of overtopping risk under the joint effects of floods and wind waves, which is based on risk analysis theory and takes into account the uncertainties of floods, wind waves, reservoir capacity and discharge capacity of the spillway, is proposed and applied to the Chengbihe Reservoir in Baise City in Guangxi Zhuang Autonomous Region. The simulated results indicate that the flood control limiting level can be raised by 0.40 m under the condition that the reservoir overtopping risk is controlled within a mean variance of 5×10-6. As a result, the reservoir storage will increase to 16 million m3 and electrical energy generation and other functions of the reservoir will also increase greatly.关键词
overtopping risk analysis/earth dam/flood/wind wave/risk standardKey words
overtopping risk analysis/earth dam/flood/wind wave/risk standard引用本文复制引用
Mo Chongxun,Liu Fanggui,Yu Mei,Ma Rongyong,Sun Guikai..Risk analysis for earth dam overtopping[J].水科学与水工程,2008,1(2):76-87,12.基金项目
This work was supported by the National Natural Science Foundation of China (Grant No. 50609005), the Science Foundation of Guangxi Education Department (Grant No. 200708LX099) and the Science Foundation of Guangxi University (Grant No. X071096). （Grant No. 50609005）
