| CFG桩在路基拓宽中应用的数值模拟 |
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| 引用本文： | 陈祥林,王驰,白玉恒. CFG桩在路基拓宽中应用的数值模拟[J]. 低温建筑技术, 2009, 31(7): 100-102 |
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| 作者姓名： | 陈祥林 王驰 白玉恒 |
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| 作者单位： | 上海交通大学船舶海洋与建筑工程学院,上海,200240;华润置地,上海,有限公司,上海,200092 |
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| 摘 要： | 以有限元软件Plaxis为工具，对软土路基拓宽进行模拟，揭示了路基拓宽后CFG桩复合地基的变形规律和承载特性。结果表明：路基拓宽后的最大沉降和水平位移均发生在新填筑的路堤，新路基采用CFG桩复合地基处理法能有效地减小沉降和水平位移，桩长和桩问距对CFG桩复合地基的荷载传递有较大影响。
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| 关 键 词： | 路基拓宽 沉降 水平位移 CFG桩 |
NUMERICAL SIMULATION OF CFG COLUMNS TO SUPPORT WIDENING OF EMBANKMENTS |
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| CHEN Xiang-lin,WANG Chi,BAI Yu-heng. NUMERICAL SIMULATION OF CFG COLUMNS TO SUPPORT WIDENING OF EMBANKMENTS[J]. Low Temperature Architecture Technology, 2009, 31(7): 100-102 |
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| Authors: | CHEN Xiang-lin WANG Chi BAI Yu-heng |
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| Affiliation: | CHEN Xiang-lin, WANG Chi, BAI Yu-heng( 1. School of Naval Architecture Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240 China; 2. Shanghai Railway Bureau, Shanghai 200071,China) |
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| Abstract: | The finite element analysis software package,Plaxis 8.2,is used to investigate the regularity of deformation and the characteristic of bearing of CFG columns composite foundatio in the widened embankments over soft soil .The results presented in this paper indicate that the maximum settlement and horizontal displacement occour in the new widending part.The application of CFG columns composite foundation can reduce settlement and horitional displacement efficiently.The length of columns and the ratio of column spacing to column diameter are the more important factors in the distribution of the loads. |
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| Keywords: | widening of embankments settlement horizontal displacement Cement Flyash Gravel(CFG) |
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