摘要
通过对某大坝基岩变形监测数据的分析研究,构建了监测孔位移变形和断层开合度两方面的综合评价体系,利用置信区间划分评价指标的评判集并结合隶属度函数得出监测数据模糊综合评判的隶属度矩阵,采用层次分析法确定评价指标的基础权重,并运用变权原理在基础权重的基础上得出各评判指标的变权权重,最后分别用常权和变权对大坝基岩位移变形和断层开合度实施综合评价。该变权分析结果与大坝基岩实际状况相符,证明了方法的合理性。通过实例对比常权和变权的评判结果得知,在变权模式下随着变权系数的不同评价结果会不同,当指标状态向量差异性大时这种不同的程度会更加明显,这时采用变权评价是合理的,能凸显出某些指标状态量异常而反映的评价目标安全性。
This paper focused on rock deformation monitoring data from a running dam,built a comprehensive evaluation system including monito-ring hole displacement deformation and open degree of fault. The evaluation set of indexes was divided by confidence interval and membership ma-trix of fuzzy comprehensive evaluation was obtained by membership function. The basis weight of evaluation index was determined by analytic hier-archy process and the variable weight was got by using the variable weight principle based on that. Finally it evaluated displacement deformation and open degree of fault with staid and variable weight. The example shows that the results of variable weight analysis are in conformity with the actual dam bedrock situation,which proves the rationality of the method. Comparing the results of common weight and variable weight,evaluation results will be different when variable weights change. When the index vector difference is big,the degree will be more obvious,so it’s reasonable to use variable weight. It can highlight abnormal index status which reflects the security of evaluation target.
出处
《人民黄河》
CAS
北大核心
2013年第11期107-110,共4页
Yellow River
基金
国家自然科学基金资助项目(50979056)
关键词
位移变形
断层开合度
安全
变权
模糊综合评价
displacement deformation
open degree
security
variable weight
fuzzy comprehensive evaluation
