病险水库风险判别标准体系研究

在常规的大坝安全鉴定(评价)的基础上,引入和采用目前国际上先进的大坝风险分析概念和技术,建立了我国病险水库风险判别标准体系,主要包括工程安全评价、风险分析、风险评估及除险加固排序四部分.对沙河集水库大坝加固前后风险分析的应用实例表明用该体系进行风险评价能得到比较满意的效果.该体系还可通过对事件及溃坝后果赋值的办法,获得诸多病险水库的风险指数,从而应用于病险水库除险加固排序.

Study on risk judgment standard system for dangerous reservoirs

Based on dam safety evaluation commonly performed,a risk judgment standard system was developed for dangerous reservoirs in China by introduction of advanced concepts and techniques for dam risk analysis.The system consists of four parts,(i.e.) safety evaluation,risk analysis,risk evaluation,and remediation priority.The system was applied to risk evaluation of Shaheji Reservoir,and the result was satisfactory.By assigning dam failure events and losses that might occur with certain values,the system can obtain risk indexes of dangerous reservoirs and further to determine remediation priority.