香丽高速公路昌格洛老滑坡稳定性研究  

Study on Stability of Changgeluo Old Landslide in Shangrila-Lijiang Expressway

作　　者：魏家旭 张玉芳 WEI Jiaxu;ZHANG Yufang(Yunnan Construction and Investment Holding Group Co.Ltd.,Kunming Yunnan 650000,China;Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)

机构地区：[1]云南省建设投资控股集团有限公司,云南昆明650000 [2]中国铁道科学研究院集团有限公司铁道建筑研究所,北京100081

出　　处：《铁道建筑》2019年第8期108-112,共5页Railway Engineering

基　　金：云南省交通运输厅科技计划(云交科教2018-34)

摘　　要：以香丽(香格里拉-丽江)高速公路昌格洛老滑坡为研究对象,通过地质勘探和现场调查的方法确定了该滑坡体的特征和形态,采用Geo-studio有限元软件建立地质模型,对在自然状态、暴雨状态、地震状态、暴雨与地震耦合状态的坡体稳定性进行计算分析。结果表明:该老滑坡体处于极限平衡状态,如受暴雨和地震等影响极易复活。针对滑坡区域实际情况,提出了抗滑支挡和隧道绕避改线的方案。经过比选,选择绕避改线方案,其工程实践检验效果良好。Taking the landslide of Changgeluo section in Shangrila-Lijiang expressway as the research object,the characteristics and forms of the landslide were determined by geological exploration and field investigation. G eo-studio finite element sof tware was used to establish geological model.The stability of slopes in natural state,rainstorm state,earthquake state and coupling state of rainstorm and earthquake was calculated and analyzed.The results showthat the old landslide body is in the limit equilibrium state and is easy to revive under the influence of rainstorm and earthquake.According to the actual situation of the landslide area,two schemes of anti-sliding retaining and tunnel avoiding and rerouting are analyzed.After comparison and selection,the scheme of avoiding and rerouting is selected and the project effect is good.

关 键 词：香丽高速公路 滑坡体 稳定性分析 致灾机理 抗滑支挡 绕避 

分 类 号：U416.14[交通运输工程—道路与铁道工程]