以丹通高速公路K55+560～K120+000路段为例,通过对现场调查资料与已有地质资料的分析,建立了适合研究区地质灾害的评价指标体系。利用层次分析法确定该评价指标体系中评价因子的权值,运用两级模糊综合评判法对研究区的地质灾害分区进行定量评价。根据最大隶属度原则得出每一评价单元的危险性评价结果,并按地质灾害危险性等级对研究区进行了划分:危险性大的区域基本分布在K55+560～K56+000、K58+500～K60+000、K65+000～K66+300及K69+000～K70+300区段内;危险性小的区域一般位于较为平缓的山间平原或山前平原,其它区域属危险性中等。该评价结果为该段公路建设及沿线地质灾害防治提供了依据。 Take the section of Kantang Expressway K55 + 560 ~ K120 + 000 as an example, through the analysis of the on-the-spot investigation data and the existing geological data, the evaluation index system suitable for the geological disasters in the study area is established. Analytic Hierarchy Process (AHP) was used to determine the weight of evaluation factors in the evaluation index system. The two-level fuzzy comprehensive evaluation method was used to quantitatively evaluate the geological disaster zoning in the study area. According to the principle of maximum degree of membership, the risk evaluation result of each evaluation unit is obtained, and the research area is divided according to the level of geological disaster risk. The areas with great danger are basically distributed in K55 + 560 ~ K56 + 000 and K58 + 500 ~ K60 + 000, K65 + 000 ~ K66 + 300 and K69 + 000 ~ K70 + 300. The less dangerous areas are generally located in the relatively gentle mountain plain or piedmont plain, and the other areas are of moderate risk. The result of the evaluation provided the basis for the highway construction and the prevention and control of geological hazards along the section.