基于灰色关联法的地质灾害危险性影响因子分析

Impact Factors Analysis of Geological Hazard Risk Based on Grey Correlation Method

以重庆万盛区某旅游度假区为例,采用灰色关联度法分析其地质灾害危险性影响因子的作用程度和因子间关系,并系统阐述了灰色关联度分析法的评价方法与模型。将该地区分成8个评价区,并选取了坡度、地层岩性、地质构造、人类活动、地下水、植被共6个影响因子,然后对影响因子进行权重计算并对其分析。结果表明:各影响因子作用程度量化排序依次为人类活动、坡度、植被、地层岩性、地下水和地质构造。人类活动和其他因子的相关性最强,地层岩性和其他因子的相关性最弱。

Taking a tourist resort in Wansheng District of Chongqing as an example,the grey correlation analysis method was used to discuss the role of the impact factors of such geological hazards and the relationship between them,and to explain the evaluation methods and models systematically.The tourist resort was divided into 8 assessment zones.6 indices were selected as impact factors,such as slope,stratum lithology,geological structure,human activity,groundwater and vegetation;and then the weight of the above impact factors was calculated and analyzed.The results show that the order of the degree of impact factors is quantified,and the order is human activity,slope,vegetation,stratum lithology,groundwater and geological structure.Human activity has the strongest correlation with other factors,while stratum lithology has the weakest correlation with other factors.