Study on index-ordering method of group-dam risk evaluation
Duan Zhi-fang · Journal of China Institute of Water Resources and Hydropower Research · 2006
A practical calculation method of group-dam risk evaluation index ordering,which is suitable for Jiangxi Province,is presented in this paper.The dam safety risk degree factor and the dam failure influence factor are evaluated synthetically.At the same time,a comprehensive influence factor is deduced with consideration of management,total reservoir capacity, irrigation profits as well as early stage reinforce work which is decided by corresponding water administrative department.The product of the 3 factors is used to ascertain the dam risk evaluation index.A dam with higher risk index is more dangerous and should be reinforced prior to others.This method has been applied to risk ordering of 200 ill-dangerous dams in Jiangxi Province.It is proved that this method is simple,practical,and easily operable.The analysis result is in good accordance with the real situation.