摘要
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。
To take the K55＋560-K120＋000 section of the Dandong-Tonghua expressway as an example, analyzed site investigation and existing geological data, an assessment index system applicable to study area geo-hazard has been established. By the use of AHP to determine weight of evaluation factor in the system, carry out study area geo-hazard division quantitative assessment through two stage fuzzy synthetic assessment. Based on the maximum membership principle acquired hazard results of every assessed unit, then divided the study area into three geo-hazard categories： high risk areas are basically within K55＋560-K56＋000,K58＋500-K60＋ 000,K65＋000-K66＋300 and K69＋000-K70＋300 sections; most parts of study area belong to medium risk areas, effective control measures can avoid geo-hazards; less risk areas are generally located in mild intermontane and piedmont plains. The assessment results can be the basis of the expressway construction and geo-hazard control along the line.
出处
《中国煤炭地质》
2009年第A01期29-31,共3页
Coal Geology of China
