摘要
应用灰色关联度分析法,进行GZ40高速公路某段地质灾害危险性综合评价。根据线路地质灾害种类多、制约因素复杂的特征,将全段分为多个评价单元,选取地形特征(坡度)、岩土类型、岩(土)体结构类型、地下水、植被覆盖率、灾害线密度(个km)、工程可能诱发灾害程度等7个指标作为评价因素,把野外调研得出的地质灾害综合评价平均分值作为评价参考指标,应用灰色关联度分析法将全段划分为3个安全等级,客观地反映了该段线路的地质灾害情况。
According to the characteristics of the various types and complex controlling factors of geological hazards, the segment was divided into many assessment elements, and the seven indices,topography feature (the gradient of slope), type of rock and soil, type of rock mass structure, groundwater, vegetation cover ratio, hazard linear density (number/km) and the hazard degree induced by engineering,are selected as assessment factors. Taking the mean value of synthetical evaluation of geological hazards derived from field investigation as referenced indices to evaluate, the whole segment was divided into three safety ranks with the method of gray correlation, and the conditions of the geological hazard of this segment were described objectively.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
2005年第3期32-34,共3页
Hydrogeology & Engineering Geology
关键词
灰色关联度
地质灾害
综合评价
gray correlation
geological hazard
synthetical evaluation
