| 桩基清除对周边环境影响的数值模拟分析 |
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| 引用本文： | 徐敏生,陈伟宏,项培林,吴,刚.桩基清除对周边环境影响的数值模拟分析[J].都市快轨交通,2009,22(1):55--57. |
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| 作者姓名： | 徐敏生 陈伟宏 项培林 吴 刚 |
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| 作者单位： | 上海市城市建设设计研究院,上海,200125 |
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| 摘 要： | 上海某轨道交通盾构顶进时下穿一高架桥梁,穿越断面与一桥梁桩基相交,因此须将影响盾构推进的桩基拔除.利用弹塑性有限元,分析全回转钻机清除桩基及孔洞回填对已建污水总管的影响,在预计的挤土效应内,污水总管的位移跟套管挤土位移基本呈线性关系,孔洞回填使污水管位移有所恢复,污水管最大位移在套筒挤土过程中产生.
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| 关 键 词： | 拔桩 全回转钻机 有限元 挤土效应 |
| 修稿时间： | 2013/12/12 0:00:00 |
Numerical Simulation for the Impact of Pile-removing on Environment |
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| Xu Minsheng,Chen Weihong,Xiang Peilin,Wu Gang.Numerical Simulation for the Impact of Pile-removing on Environment[J].Urban Rapid Rail Transit,2009,22(1):55--57. |
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| Authors: | Xu Minsheng Chen Weihong Xiang Peilin Wu Gang |
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| Institution: | Shanghai Urban Construction Design & Research Institute;Shanghai 200125 |
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| Abstract: | By using elastic-plastic finite element method,the article analyses the impact on a built waste main caused by removing pile foundation and backfilling the pile holes with a full-rotating drilling rig.The displacements of the waste main possessed mainly a linear relationship with casing squeezing displacements within the predicted squeezing effect.And the displacements of the waste main obtained some recovery during backfilling the pile holes.The maximum displacements of the waste main occurred during the p... |
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| Keywords: | pile pulling: full-rotating drilling rig finite element squeezing effect |
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