垣渑高速滑坡的成因分析及处治研究  

Cause Analysis and Treatment Measures of Yuanqu-Mianchi Highway Landslide

作　　者：卢欢 刘畅 李微 LU Huan;LIU Chang;LI Wei(Zhongjiaotongli Construction Construction Co., Ltd., Xi’an 710000, China;School of Highway, Chang’an University, Xi’an 710000, China)

机构地区：[1]中交通力建设股份有限公司,西安710000 [2]长安大学公路学院,西安710000

出　　处：《交通科技》2020年第3期58-62,共5页Transportation Science & Technology

摘　　要：文中从滑坡地层、滑带(面)及滑床岩土特征、滑坡变形破坏与成因机制等多个方面对该滑坡进行分析。采用室内试验、滑坡滑动前后稳定性分析反算对比等方法综合确定滑动带c、φ值。采用折线形滑面传递系数法计算滑坡稳定系数及剩余下滑力,提出了工程防护措施设计思路及要点。The bedding sliding of new landslide in the process of excavation of a slope is analyzed from the aspects of landslide stratum,sliding zone(surface),rock and soil characteristics of sliding bed,landslide deformation and failure,and genetic mechanism.The values of c andφof sliding zone are determined comprehensively by laboratory test,back calculation and comparison of stability analysis before and after landslide sliding.The stability coefficient and residual sliding force of landslide are calculated by the method of transfer coefficient of folded sliding surface,and the key points and design of engineering protection measures are put forward.

关 键 词：滑坡 第三系泥砂岩 成因分析 稳定性计算 处治方案 

分 类 号：U416.01[交通运输工程—道路与铁道工程] U418.55