宝天高速公路K83+650~K84+100段滑坡稳定性分析与治理  

Stability Analysis and Control of K83+650~K84+100 Sections of Baotian Expressway Landslide

作　　者：金兆鑫 贾存鹏 庞建平 JIN Zhao-xin;JIA Cun-peng;PANG Jian-ping(School of Civil Engineering,Lanzhou Petrochemical Polytechnic,Lanzhou 730060,China;Gansu Transportation Planning Survey and Design Institute Co.Ltd,Lanzhou 730030,China)

机构地区：[1]兰州石化职业技术学院土木工程学院,甘肃兰州730060 [2]甘肃省交通规划勘察设计院股份有限公司,甘肃兰州730030

出　　处：《兰州石化职业技术学院学报》2020年第4期20-23,共4页Journal of Lanzhou Petrochemical Polytechnic

基　　金：兰州石化职业技术学院2019年教科研项目(KJ2019-15);兰州市市委组织部人才项目(2017-RC-52)。

摘　　要：通过分析宝天高速公路K83+650~K84+100段滑坡的变形特征,依据现场勘探的资料,采用传递系数法和不平衡推力法计算了该段滑坡的稳定系数和滑坡推力。计算结果表明,在天然和天然+暴雨两种工况下该段滑坡浅层滑坡处于欠稳定状态,深层滑坡处于基本稳定的状态,在综合分析滑坡特征、地层岩性和施工条件的基础上,制定了削方减载+桩板墙+截排水的具体治理措施。Through the analysis of highway K83+650~K84 treasure day+100 section of the landslide deformation characteristics on the basis of field exploration data and the transfer coefficient method and imbalance thrust method to calculate the segment and stability coefficient of landslide thrust,it is shown that under these two kinds of condition of natural and natural+heavy rains,this shallow landslide is in unstable state and deep landslide is in a state of stable.Through the comprehensive analysis of landslide characteristics as well as formation lithology and construction conditions,"cut the lightening+slab-pile wall+drain"treatment measure is established.

关 键 词：滑坡 变形特征 传递系数法 治理 

分 类 号：U418.55[交通运输工程—道路与铁道工程]