摘要
在分析边坡稳定影响因素的基础上,选取重度、内聚力、内摩擦角、边坡角、边坡高度、孔隙压力比6个影响边坡稳定的因素作为指标因子,提出利用层次分析法(AHP)和粗糙集理论(RS)相结合的方法(AHP-RS)进行指标权重的确定。经计算得出的指标权重按照从大到小的顺序排列为:内聚力、边坡角、内摩擦角、重度、边坡高度、孔隙压力比。AHP-RS作为一种主客观因素相结合的方法,能避免AHP的主观任意性及单独使用RS时出现权重为0的情况,所得结果能更准确地反映边坡的实际情况。
On the basis of factor analysis of slope stability,6 influence factors of slope stability,including gravity,cohesion,internal friction angle,slope angle,slope height and pore pressure ratio,are selected as indexes and the combination of analytic hierarchy process and rough set theory（AHP-RS） is proposed to determine the weight of the indexes. The descending order of the indexes after calculating follows： cohesion,slope angle,internal friction angle,gravity,slope height and pore pressure ratio. AHP-RS,as a method of combining subjective with objective factors,can not only avoid the subjectivity of AHP,but also avoid the situation that the weight appears to be 0 by using RS alone. The calculated result using AHP-RS can reflect the situation of slope much more precisely and actually.
出处
《工业安全与环保》
北大核心
2015年第3期54-57,共4页
Industrial Safety and Environmental Protection
基金
国家"十二五"科技支撑计划项目(2012BAK09B05)
