川藏公路南线然乌—鲁朗段工程地质分区  

Engineering geological zonation for south section of Sichuan-Tibet highway

作　　者：丁继新[1] 周圣华[1] 杨志法[2] 尚彦军[2] 张路青[2] 尹俊涛[3] 

机构地区：[1]有色金属矿产地质调查中心,北京100012 [2]中科院地质与地球物理研究所工程地质力学重点实验室,北京100029 [3]中南大学地学与环境工程学院,湖南长沙410083

出　　处：《自然灾害学报》2005年第5期154-161,共8页Journal of Natural Disasters

基　　金："973‘国家重点基础研究发展规划项目(2002CB412701)

摘　　要：川藏公路南线然乌—鲁朗段工程地质条件极差,致使该地区各种地质灾害十分严重。采用岩石工程系统(RES)方法对川藏公路南线然乌—鲁朗段进行了半定量的工程地质分区。首先,通过现场调查,根据地质灾害特点、工程地质条件和实践经验,对川藏公路南线然乌—鲁朗段进行了初步工程地质分区。然后在多因素相互作用关系矩阵基础上,定义了工程地质条件评价因子(EGAF),根据EGAF,对每个亚区的工程地质条件进行了半定量的评价,验证了初步工程地质分区的正确性。最后,将研究区分成了3个区和9个亚区,并绘制了相应的工程地质分区图。The engineering geological conditions along Ranwu-Lulang section of Sichuan-Tibet highway are extremely poor and complicated,which result in quite severe geological hazards.The rock engineering systems(RES) approach is adopted to make a semi-quantitative engineering geological zonation for Ranwu-Lulang section of Sichuan-Tibet highway in this paper.By field investigations,preliminary engineering geological zonation for Ranwu-Lulang secdtion of Sichuan-Tibet highway is semi-qualitatively established in terms of the characteristics of geological hazards,engineering geological conditions and experiences.Then the Engineering geological assessment factor(EGAF) is defined on the foundation of an multifactor interaction matrix,with which the engineering geological conditions of every zone or subzone are semi-quantitatively evaluated,and the rationality of preliminary engineering geological zonation is validated.Finally,the studied area is divided into 3 zones and 9 subzones,and a sketch of engineering geological zonation is drawn.

关 键 词：川藏公路 岩石工程系统 工程地质分区 相互作用矩阵 

分 类 号：P694[天文地球—地质学]