基于改进层次分析法和可拓学理论对泥石流危险度的分析.pdfVIP

8 6 Vol. 8 No.6 2 0 10 12 Journal of Water Resources and Architectural Engineering Dec. , 20 10 商卫东, 杨占强, 孙立平 ( , 050031) : 通过粗糙集理论对层次分析法进行改进, 降低了权重确定中的人为因素的干扰, 通过可拓学 理论解决泥石流系统的模糊性与危险度评价的确定性之间的矛盾, 将评价因子与标准之间的关系发展 到因子与标准之间的距离, 定量化的描述出研究目标的特性建立了一套新的泥石流危险度评价系统 根据对算例的计算,计算结果与实际情况一致, 验证了该方法的科学性和实用性 : 危险度; 泥石流; 层次分析法; 可拓学 : P642.23 : A : 1672) 1144( 2010) 06) 0100) 03 Analysis of Debris flow Hazard Based on Improved Analytic Hierarchy Process and Extenics Theory SHANG Wei dong, YANG Zhan qiang, SUN Li ping (Hebei Construction Surveying Research Institute Co., Ltd., Shijiazhuang , Hebei 050031, China) Abstract : The analytic hierarchy process is improved by rough set theory to reduce the interference of humanfactorwhen deter mining the weights. Then the extenics theory is used to resolve the contradiction between the uncertainty of mud rockflow system and the certainty of the system, and the relationship of evaluation factors and criteria is extended to the distances between them, which could describe the quantitative characteristics of the debrisflow system. At the same time, a new system for evaluating the debris flow hazard is established. According to the calculationfor examples, the resultsfit with the actual situations, which could prove the scientific and practical nature of this method. Keywords: hazard debris flow analytic hierarchy process extenics [ 5] , , , 0 引 言 , , , ( Rough Set) Z. P