| 公路拓宽部位桩基性状的数值分析 |
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| 引用本文： | 张磊,黄金荣,周进华,徐永福.公路拓宽部位桩基性状的数值分析[J].低温建筑技术,2009,31(4):97-100. |
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| 作者姓名： | 张磊 黄金荣 周进华 徐永福 |
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| 作者单位： | 1. 上海交通大学船舶海洋与建筑工程学院,上海,200240
2. 泰州市公路管理处,江苏,泰州,225300 |
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| 摘 要： | 面对日益增加的交通流量，增加公路容量迫在眉睫，拓宽原有公路是近年来的热点。新拓宽路基因新路堤自重应力产生不均匀沉降，不均匀沉降会导致路面开裂，减小新拓宽路基不均匀沉降的快捷有效方法是桩基。文中采用ELAC^2D办件研究了拓宽路基中不同桩长和桩体模量的复合地基形状，得到了桩长和桩体模量对拓宽路基水平位移、沉降、不均匀沉降的影响规律，指导公路拓宽工程建设。
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| 关 键 词： | 软土路基 有限差分法 拓宽 不均匀沉降 桩土应力比 |
NUMERICAL ANALYSIS FOR PILE FOUNDATION IN EXPRESSWAY WIDENING ENGINEERING |
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| ZHANG Lei,HUANG Jin-rong,ZHOU Jin-hua,XU Yong-fu.NUMERICAL ANALYSIS FOR PILE FOUNDATION IN EXPRESSWAY WIDENING ENGINEERING[J].Low Temperature Architecture Technology,2009,31(4):97-100. |
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| Authors: | ZHANG Lei HUANG Jin-rong ZHOU Jin-hua XU Yong-fu |
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| Affiliation: | 1.Department of Civil Engineering;Shanghai Jiaotong University;Shanghai 200240;China;2.Road Administration Department of Taizhou;Jiangsu Taizhou 225300;China |
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| Abstract: | Due to the requirement of increasing traffic,it is very urgent to widen the existing highways in China.The additional stresses will cause differential settlements;the differential settlement may lead to cracks of pavement sections.Pile foundation would be an effective solution to remedy the problem.Two-dimensional finite difference software: FLAC2D was used to study deformations of the widened embankments over soft soil with Pile.The results of the paper include the vertical and the horizontal displacements... |
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| Keywords: | soft soil finite difference widening differential settlements pile-soil stress ratio |
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