| 注浆钢管微型桩加固滑坡的试验研究 |
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| 引用本文： | 陈强,陈炜韬,刘世东,马青杰.注浆钢管微型桩加固滑坡的试验研究[J].西南交通大学学报,2011(5):758-763. |
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| 作者姓名： | 陈强 陈炜韬 刘世东 马青杰 |
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| 作者单位： | 西南交通大学土木工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(40772174) |
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| 摘 要： | 为探讨注浆钢管微型桩对滑坡的加固机理,通过离心模型试验,分别从坡顶位移、坡面位移及坡内部位移分析了注浆钢管微型桩对滑坡的控制效果,并讨论了钢管微型桩的受力特征.试验结果表明:注浆钢管微型桩能有效地控制边坡土体位移,阻止滑坡的产生,防止圆弧型滑裂带的形成,仅坡体表面局部浅层形成裂纹;前桩所受的最大土压力约为后桩的13.3%,表明后桩承受较大的滑坡推力;加固过程中,前桩的弯矩曲线由反S型逐渐变为S型,而后桩的弯矩曲线一直呈S型.
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| 关 键 词： | 离心模型试验 注浆钢管微型桩 滑坡 |
Model Test on Application of Grouting Steel-Tube Micropiles to Landslide Reinforcement |
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| CHEN Qiang,CHEN Weitao,LIU Shidong,MA Qingjie.Model Test on Application of Grouting Steel-Tube Micropiles to Landslide Reinforcement[J].Journal of Southwest Jiaotong University,2011(5):758-763. |
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| Authors: | CHEN Qiang CHEN Weitao LIU Shidong MA Qingjie |
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| Institution: | CHEN Qiang,CHEN Weitao,LIU Shidong,MA Qingjie(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | In order to investigate the reinforcing mechanism of grouting steel-tube micropiles on landslide,their control effects were analyzed from the displacements of slope top,slope surface and slope body through centrifugal model tests.The force characteristics of steel-tube micropiles reinforcing landslide were analyzed.The experimental results show that grouting steel-tube micropiles can effectively control the displacement of slope soil and prevent the generation of landslide,and only local shallow cracks are ... |
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| Keywords: | centrifuge model test grouting steel-tube micropile landslide |
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