基于FAHP的功效系数法的岩质边坡稳定性分级  

Stability Classification of Rock Slope Based on FAHP Efficiency Coefficient Method

作　　者：秦胜伍[1,2] 曹荣国 李广杰[1,2] 马中骏[1] 吕江峰[1] 

机构地区：[1]吉林大学建设工程学院,吉林长春130000 [2]吉林大学地质调查研究院,吉林长春130000

出　　处：《灾害学》2016年第4期27-32,共6页Journal of Catastrophology

基　　金：国家自然科学基金青年基金(41202197);国土资源部公益性行业科研专项(201211095-6);吉林省永吉县1:5万地质灾害调查与区划项目

摘　　要：针对岩质边坡稳定性评价的模糊性与多指标性特点,采用模糊层次分析法确定Ⅰ、Ⅱ级指标权重,提高了0.1～0.9标度法所确定权重的客观性并克服了单一性,且避免了同一对指标比较时的不一致性,量化了不连续性基础指标。引入功效系数法对不同类型的基础指标进行功效系数值归一化求解,结合功效系数值与Ⅰ、Ⅱ级指标权重向量计算得出总功效系数值,据总功效系数值大小划分稳定性级别。在模糊层次分析法基础上,运用功效系数法对永吉岩质边坡进行稳定性评价、分级的结果与实际调查情况相符。证明该方法对岩质边坡稳定性分级具有很好的适用性与可靠性。According to the characteristics of fuzzy evaluation of rock slope stability and multi index,using fuzzy AHP to determine the weight of the first and second level indicators,we improve 0. 1- 0. 9 scale method of index weight and subjectivity and overcome the singularity,and avoid the inconsistency of the same index to quantify the discontinuity based index. The efficacy coefficient method is introduced to solve the numerical normalization method for different types of basic indexes. The total effect is calculated with the numerical efficiency of the numerical simulation and the first and second level index weight vector,according to the general efficacy coefficient size stability level. On the basis of Fuzzy AHP,the results of stability evaluation and classification of rock slope in Yongji correspond to the actual situation,which proved that the method has good applicability and reliability for the stability classification of rock slope.

关 键 词：模糊 层次分析法 功效系数法 岩质 边坡 稳定性分级 

分 类 号：TU443[建筑科学—岩土工程] X43[建筑科学—土工工程]