摘要
针对土石坝渗流安全评价中的不确定性及现有评价方法的不足,提出了一种全新的不确定性动态评价方法.该方法以描述不确定性的云模型方法为基础,给出评价等级,求各指标对评价等级的"软与",并依据不同时期(或时刻)的土石坝渗流安全等级和等级特征值,建立了渗流不确定性动态评价模型.并用实例分析证明了所建立模型的合理性.
Against the insufficient of evaluation methods and the uncertainty in seepage safety of earth and rockfill dams, a new method of cloud dynamic evaluation which is based on the cloud model and can describe the uncertainty is proposed. The method can establish a dynamic evaluation model of seepage uncertainty by the soft division of evaluation grade, solving each evaluation index by ＂ soft and＂, and according to the safety grade and grade eigenvalue in different periods of earth and roekfill dam＇s seepage. At last the method is applied to a real dam, and the result shows that the model is feasible and reasonable.
出处
《华北水利水电学院学报》
2012年第4期1-4,共4页
North China Institute of Water Conservancy and Hydroelectric Power
基金
国家自然科学基金(51009066)
河南省教育厅自然科学研究计划项目(2011A570002)
关键词
土石坝
渗流
云模型
不确定性
动态评价
earth and rockfill dam
seepage
cloud model
uncertainty
dynamic evaluation
