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某高速公路滑坡的数值模拟及后缘坡体稳定性分析

Numerical Simulation of Expressway Landslide and Its Rear Edge Stability

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【作者】 贺汇文龙建辉苏生瑞章健

【Author】 HE Hui-wen,LONG Jian-hui,SU Sheng-rui,ZHANG Jian(School of Geological Engineering and Surveying,Chang’an University,Xi’an 710054,Shaanxi,China)

【机构】 长安大学地质工程与测绘学院长安大学地质工程与测绘学院 陕西西安710054陕西西安710054

【摘要】 通过对诸永高速公路台州段1#滑坡(K120+085~K120+169)工程地质特征的分析,指出沿线区存在很多因修建公路引发的工程滑坡问题,然后采用边坡稳定性FLAC/Slope分析软件,对滑坡滑动前、后工况下稳定性进行数值模拟,并对滑移后的后缘坡体稳定性进行了数值分析。剪应变率云图和稳定性分析结果表明,滑动后的后缘坡体仍处于不稳定状态,又形成了新的滑坡体。

【Abstract】 Based on analysis of the engineering geology characteristic of No.1 landslide of Taizhou part of the Zhu-Yong expressway(K120+085-K120+169),it is pointed out that there are a lot of problems of landsilde due to the construction of highway along the line.By employing software FLAC/Slope,the stability of the landslide is analyzed by numerical simulatiion under two states before and after the slidding,and the stability of its rear edge after slide is also simulated.The results indicate that the rear edge of the landslide after slide is still unstable,and has formed a new landslide.

【关键词】 高速公路滑坡稳定性FLAC/Slop数值模拟
【Key words】 ExpresswaylandslidestabilityFLAC/Slopenumerical simulation
【基金】 陕西省交通厅科技项目(04-05K)
  • 【文献出处】 地球科学与环境学报 ,Journal of Earth Sciences and Environment , 编辑部邮箱 ,2008年02期
  • 【分类号】U418.55
  • 【被引频次】15
  • 【下载频次】289
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