摘要
滑坡作为一种常见的地质灾害,对工程建设以及人民的日常生活会产生重要的影响。该文以南京察哈尔路西北侧山体滑坡Ⅱ区为研究对象,采用现场调查、理论分析及数值模拟的方法和手段,对其在天然和暴雨工况下的稳定性进行研究,数值模拟结果显示在暴雨工况下,该处边坡的坡脚会因软化受剪而发生牵引式滑坡,位移最大为43cm。根据该边坡的破坏模式,提出了锚杆加固和抗滑桩加固两种主要的加固方式,并对加固效果进行了数值模拟比较,结合治理效果以及工程成本,证明锚杆满足工程稳定的要求的同时更为经济。
As a common geological disaster,the landslide will have an important impact on engineering construction and people’s daily life. In this paper,taking the landslide area II in northwest of Chahar road in Nanjing as the research object. The methods and means of field investigation,theoretical analysis and numerical simulation are used to study its stability under the natural and rainstorm conditions. The numerical simulation results show that under the rainstorm conditions,this slope toe will occur traction landslide due to softening and shearing,and the maximum displacement is 43 cm. According to the failure mode of this slope,two main reinforcement methods,bolt reinforcement and anti-slide pile reinforcement,are put forward,and the reinforcement effect is compared by numerical simulation. Combined with the treatment effect and engineering cost,it proves that the bolt can meet the requirements of engineering stability and more economical.
作者
王鹏翔
孙少锐
蒋波
喻永祥
何伟
宋京雷
Wang Pengxiang;Sun Shaorui;Jiang Bo;Yu Yongxiang;He Wei;Song Jinglei(School of Earth Sciences and Engineering,Hohai University;Geological Survey Institute of Jiangsu Province)
出处
《勘察科学技术》
2019年第6期28-32,51,共6页
Site Investigation Science and Technology
基金
国家自然科学基金资助项目(41672258)
江苏省国土厅科技计划项目(2018045).
关键词
边坡
锚杆加固
抗滑桩加固
数值模拟
FLAC3D
slope
anchor reinforcement
anti-slide pile reinforcement
numerical simulation
FLAC3D
