堆积体边坡灾变过程动态稳定性评价  

Evaluation of Dynamic Stability in the Process of Deposit Slope Catastrophe

作　　者：柴贺军 刘伟 唐胜传 CHAI Hejun;LIU Wei;TANG Shengchuan(National Mountain Highway Engineering Technology Research Center,Chongqing 400067;National and Local Joint Engineering Laboratory of Mountain Road Engineering and Disaster Prevention and Reduction Technology,Chongqing 400067;Chongqing Transportation Planning Survey and Design Institute,Chongqing 401121)

机构地区：[1]国家山区公路工程技术研究中心,重庆400067 [2]山区道路工程与防灾减灾技术国家地方联合工程实验室,重庆400067 [3]重庆市交通规划勘察设计院,重庆401121

出　　处：《公路交通技术》2019年第6期18-24,共7页Technology of Highway and Transport

基　　金：国家科技支撑计划项目(2015BAK09B00);国家重点研发计划项目(2018YFC1504903)

摘　　要：西南山区公路建设中,堆积体边坡在开挖和降雨影响下经常出现灾变,其形成与灾变过程中的稳定性是个动态变化过程,动态稳定性与变形破坏过程的关系尚缺少认识,因此依托典型案例,采用FLAC 3D软件,对堆积体边坡灾变的全过程进行模拟,建立了堆积体边坡变形、破坏与稳定性的关系,实现了边坡的动态稳定性评价,可为类似边坡的稳定性判定、监测点的布置和灾害过程控制提供参考。In the highway construction of southwest mountainous area,deposit slope often occurs catastrophes under the influence of excavation and rainfall.Its formation and stability in the process of catastrophes is a dynamic change process,and the relationship between dynamic stability and deformation and failure process is still unknown.Therefore,based on typical cases,this paper uses FLAC^3D software to simulate the whole process of catastrophes of deposit slope,establishes relationship among deformation,failure and stability of the slope,and realizes the dynamic stability evaluation of slope,which can provide basis for stability determination,monitoring point layout and disaster process control of similar slope.

关 键 词：堆积体边坡 灾变过程 动态稳定性 过程控制 

分 类 号：U416.14[交通运输工程—道路与铁道工程]