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| 高速公路扩建工程软基隔离墙加固机理的数值分析 | |
| 引用本文： | 杨涛,李磊,石磊,李国维.高速公路扩建工程软基隔离墙加固机理的数值分析[J].公路交通科技,2011,28(8):52-56. |
| 作者姓名： | 杨涛 李磊 石磊 李国维 |
| 作者单位： | 1. 上海理工大学环境与建筑学院,上海,200093 2. 上海市金山区市政工程管理署,上海,200540 3. 河海大学道路与铁道工程研究所,江苏 南京,210098 |
| 基金项目： | 广东省交通重点科技项目(200502) |
| 摘 要： | 为把握新路基荷载作用下隔离墙加固直接方式拼接的拓宽路堤工作性状,建立了二维弹塑性有限元模型.通过有限元数值模拟分析,从加固前后拓宽路堤的沉降、地基土水平位移和竖向附加应力的变化等方面揭示了隔离墙的加固机理,并分析了隔离墙的最佳设置位置.计算结果表明,隔离墙的设置可有效地减小地基土水平位移和竖向附加应力,从而减小新老路基... |
| 关 键 词： | 道路工程 加固机理 数值分析 隔离墙 拓宽路堤 |
Numerical Analysis of Reinforcement Mechanism of Separating Wall for Expressway Widening on Soft Ground |
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| YANG Tao,LI Lei,SHI Lei,LI Guowei.Numerical Analysis of Reinforcement Mechanism of Separating Wall for Expressway Widening on Soft Ground[J].Journal of Highway and Transportation Research and Development,2011,28(8):52-56. | |
| Authors: | YANG Tao LI Lei SHI Lei LI Guowei |
| Institution: | YANG Tao1,LI Lei1,SHI Lei2,LI Guowei3 (1.School of Environment and Architecture,University of Shanghai for Science and Technology,Shanghai 200093,China,2.Shanghai Jinshan District Municipal Engineering Administration Department,Shanghai 200540,3.Research Institute of Road and Railway Engineering,Hohai University,Nanjing Jiangsu 210098,China) |
| Abstract: | For inuestigating the performance of widened embankment with the direct connection method on soft ground improved by separating wall,a 2D elastic-plastic finite element model was established.Numerical analysis was conducted to investigate the reinforcing mechanism of the widened embankment over soft ground with separating wall,including settlement at top of the widened embankment,lateral displacement and additional vertical stress of the soft soil pre and post reinforcement.The optimal position of separatin... |
| Keywords: | road engineering reinforcement mechanism numerical analysis separating wall widened embankment |
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