基于AHP-CF法的白水江流域滑坡影响因子敏感性分析  

Sensitivity Analysis of Landslide Influence Factors in Baishui River Basin based on AHP-CF Method

作　　者：徐鹏 梁瑞锋 刘斌 XU Peng;LIANG Ruifeng;LIU Bin(Kunming Survey and Design Institute Co., Ltd, PowerChina, Kunming 650051)

机构地区：[1]中国电建集团昆明勘测设计研究院有限公司,云南昆明650051

出　　处：《城市地质》2018年第4期43-49,共7页Urban Geology

摘　　要：根据野外调查和室内分析,选取坡度、坡向、坡高、工程地质岩组、岸坡结构、断裂构造、河流水系、降雨条件、人类工程活动作为白水江流域滑坡影响因子,运用AHP-CF法对上述因子进行滑坡敏感性分析,最终得到各因子的LSP值及其排名。结果显示:研究区滑坡对软硬相间岩类敏感性最强;对顺向坡、距离河流水系与道路小于1km、坡度为20°～40°及400～500mm年均降雨量值较为敏感;对坡向、坡高等因素敏感性较弱;对区内其它岩类、坡度为40°～90°及600～800mm年均降雨量值敏感性弱。According to field investigation and indoor analysis,we select slope gradient,slope direction,slope height,engineering geology rock groups,embankment structure,fault structure,river system,rainfall condition,human engineering activity as landslide influence factors and analyze the landslide sensitivity of the above factors by AHP-CF method in the Baishui River basin.Finally we get the LSP value of each factor and its ranks.The results show that:Landslides are most sensitive to soft and hard alternating rocks;Landslides are sensitive to dip slope with the slope of20°~40°and the range of average annual rainfall400~500mm in a certain degree;Landslides are less sensitive to slope direction and slope height;Landslides have weak sensitivity to other rock groups with the slope of40°~90°and the range of average annual rainfall600~800mm.

关 键 词：AFP-CF法 白水江流域 滑坡影响因子 敏感性分析 

分 类 号：P642.22[天文地球—工程地质学]