| 土工格室柔性挡墙极限主动土压力计算方法 |
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| 引用本文： | 屈战辉,谢永利,袁福发,杨晓华,梁武星.土工格室柔性挡墙极限主动土压力计算方法[J].交通运输工程学报,2010(1). |
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| 作者姓名： | 屈战辉 谢永利 袁福发 杨晓华 梁武星 |
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| 作者单位： | 长安大学公路学院;西安公路研究院;徐州市公路工程总公司; |
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| 基金项目： | 国家西部交通建设科技项目(200631881259) |
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| 摘 要： | 利用有限元法分析了土工格室柔性挡墙水平变位特征,得到了墙体中部水平变位的分界点,提出了主动土压力的计算方法。分界点上部位移模式接近平动,采用库仑主动土压力理论计算上部的土压力,分界点下部位移模式接近绕墙脚的转动,采用水平微分单元法计算下部的土压力,并比较了计算结果与实测结果。比较结果表明:土压力计算结果与实测结果沿墙高的分布形态及增长趋势基本一致,计算值比实测值略偏小一些,偏差最小为0.2 kPa,最大为2.9 kPa,平均偏小为1.2 kPa,可见土压力计算方法可靠。
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| 关 键 词： | 路基工程 土工格室 柔性挡墙 极限主动土压力 计算方法 |
Calculation method of active earth pressure under limit state for geocell flexible retaining wall |
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| QU Zhan-hui,XIE Yong-li,YUAN Fu-fa,YANG Xiao-hua,LIANG Wu-xing.Calculation method of active earth pressure under limit state for geocell flexible retaining wall[J].Journal of Traffic and Transportation Engineering,2010(1). |
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| Authors: | QU Zhan-hui XIE Yong-li YUAN Fu-fa YANG Xiao-hua LIANG Wu-xing |
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| Institution: | 1.School of Highway/a>;Chang'an University/a>;Xi'an 710064/a>;Shaanxi/a>;China/a>;2.Xi'an Highway Institute/a>;Xi'an 710054/a>;3.Xuzhou Highway Engineering Group Company/a>;Xuzhou 221003/a>;Jiangsu/a>;China |
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| Abstract: | The horizontal displacement of geocell flexible retaining wall was analyzed by finite element method,its cut-off point in the middle of the wall was got,and the calculation method of active earth pressure under limit state was put up.The displacement mode above the cut-off point was near translational and the earth pressure of the part was calculated by Coulomb's active earth pressure theory.The displacement under the point was near rotary around the foot of the wall and the earth pressure of the part was c... |
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| Keywords: | subgrade engineering geocell flexible retaining wall limit active earth pressure calculation method |
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