| 强风化花岗岩边坡不同开挖及外荷载下的变形及应力分布特征 |
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| 引用本文： | 李世贵,任仁,朱大权,叶显亮. 强风化花岗岩边坡不同开挖及外荷载下的变形及应力分布特征[J]. 长沙交通学院学报, 2011, 27(2): 16-22 |
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| 作者姓名： | 李世贵 任仁 朱大权 叶显亮 |
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| 作者单位： | 贵州高速公路开发总公司,贵州贵阳,550004 |
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| 基金项目： | 贵州省交通运输厅资助项目(2010-122-034) |
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| 摘 要： | 利用有限元数值分析软件，对其高速公路强风化花岗岩对边坡在不同开挖及工况下的变形及应力分布特征进行了详细分析，明确了潜在滑面位置，对边坡开挖后岩土体的卸荷深度进行了模拟计算．分析结果表明，只需在抗滑桩悬臂段施作预应力锚索便可以稳定整个坡体，无需进行较大工程变更（路基改为桥梁），可为工程建设节省大量的投资成本．
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| 关 键 词： | 强风化花岗岩 卸荷 应力重分布 防治措施 |
Distribution characteristic of deformation and stress of strong weathering granite slope with the different excavation and other loading |
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| LI Shi-gui,REN Ren,ZHU Da-quan,YE Xian-liang. Distribution characteristic of deformation and stress of strong weathering granite slope with the different excavation and other loading[J]. Journal of Changsha Communications University, 2011, 27(2): 16-22 |
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| Authors: | LI Shi-gui REN Ren ZHU Da-quan YE Xian-liang |
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| Affiliation: | LI Shi-gui,REN Ren,ZHU Da-quan,YE Xian-liang(Guizhou Expressway Development Corporation,Guiyang 550004,China) |
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| Abstract: | The finite element numerical analysis software is used.With the excavation and other loads,the deformation and stress distibution characteristic of the expressway slope are analyzed in details.Slip plane and unloading depth of rock-mass and soil-body are defined.The results indicate that on the cantilever of pile,the prestress anchors are constructed.Under this condition,the slope is stable,a great working change is required(changing roadbed to bridge),a large invetment costs are cut down. |
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| Keywords: | strong weathering granite unloading stress redistribution prevetion measure |
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