| 煤系地层路基边坡锚索抗滑桩加固作用机理分析研究 |
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| 引用本文： | 刘志勇,黄伟伟,吴仁铣.煤系地层路基边坡锚索抗滑桩加固作用机理分析研究[J].中南公路工程,2012(4):92-95. |
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| 作者姓名： | 刘志勇 黄伟伟 吴仁铣 |
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| 作者单位： | [1]贵州省交通规划勘察设计研究院股份有限公司,贵州贵阳550001 [2]中南大学土木工程学院,湖南长沙410075 |
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| 基金项目： | 贵州省交通运输厅资助项目（2010-122-011） |
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| 摘 要： | 由现场监测试验可知，煤系地层路基开挖后该边坡处于滑动状态，应用极限平衡原理建立平衡方程，反演了主滑动面的内摩擦角Ф和粘聚力C，由此确定了锚索抗滑桩的支护加固方案，进行了平面布置与结构计算分析。采用有限元法对纯桩和锚桩加固方案进行了对比，加锚索后无论是桩的水平变形，还是桩内应力均得到了改善。
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| 关 键 词： | 煤系地层 预应力锚索抗滑桩 滑坡处理 有限元评价 |
The Analysis of Mechanism of Coal-bearing Strata Roadbed Slope Reinforced with Thepre-forced Cable and Anti-slipping Pile |
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| LIU Zhiyong,HUANG Weiwei,WU Renxi.The Analysis of Mechanism of Coal-bearing Strata Roadbed Slope Reinforced with Thepre-forced Cable and Anti-slipping Pile[J].Central South Highway Engineering,2012(4):92-95. |
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| Authors: | LIU Zhiyong HUANG Weiwei WU Renxi |
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| Institution: | 1. Guizhou Transportation Planning Survey and Design Academe CO., LTD, Guiyang, Guizhou, 550001,China; 2. School of Civil and Architectural Engineering, Central South University,Changsha, Hunan 410075, China) |
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| Abstract: | As is known from monitoring in-situ, the newly-cut slope is sliding in coal-bearing strata. According to limit equilibrium principal of slope, a back analysis has been made to determine the cohesive factor C and internal friction angle Ф of pre-existing potential instable discontinuities. Based on the C and Ф determined above, pre-forced cable and anti-slipping pile scheme was adopted. Consequently, plane layout and structure design of pre-forced cable and anti-slipping pile have been made. The FEM is adopted in comparison for the schemes of pre-forced cable and anti-slipping pile and anti-slipping pile. Both horizontal deformation of pile or piles stress are improved after installation of anchor cable |
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| Keywords: | Coal-bearing strata pre-forced cable and anti-slipping pile Slope treatment Evalua-tion with FEM |
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