滑坡稳定性的模糊综合评价

渝东南地区地表崎岖,多崇山峻岭,沿江河冲沟发育,为滑坡、泥石流等不良地质现象提供了天然条件.以庙堡坪古滑坡为例,运用模糊综合评价方法,从地貌形态、地层岩性、地质构造、滑体密实度、水文地质条件5个方面,分为2个层次,共7个因子建立了滑坡稳定性评价的模糊综合评判模型,确定了各因素等级标准和权重,根据最大隶属度原则,得出水库蓄水后该滑坡稳定性较差的结论,并提出了相应的工程处理措施.

Fuzzy Comprehensive Evaluation on Landslide Stability

In the southeast of Chongqing,there are rough surfaces,many mountains,and gullies developed along rivers,which provide natural conditions for those bad geological phenomena,such as landslides and debris flow.In this paper,taking the ancient landslide of Miaobaoping as an example,the fuzzy comprehensive evaluation model applied to evaluating landslide stability is established by the fuzzy comprehensive evaluation method form five aspects of topographic form,formation lithology,geologic structure,compactness of the landslide body,hydrogeologic condition,which are divided into two levels,a total of seven factors.Firstly,the standard of each factor's level and weights are determined.Then according to the principle of maximum membership degree,a conclusion is drawn that the landslide stability becomes worse after storing water.Finally,engineering measures are proposed.