| 大直径超长群桩有效桩长问题的有限元参数分析 |
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| 引用本文： | 陈培震,栾茂田,罗强.大直径超长群桩有效桩长问题的有限元参数分析[J].中国科学院研究生院学报,2012,29(3):307-311. |
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| 作者姓名： | 陈培震 栾茂田 罗强 |
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| 作者单位： | 大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024;大连理工大学土木工程学院岩土工程研究所,辽宁大连116024 |
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| 摘 要： | 采用大型有限元软件ABAQUS,针对大直径超长群桩的有效桩长进行三维有限元数值分析.采用极限承载力控制法,对竖向荷载下不同布桩形式的大直径超长群桩基础的有效桩长进行研究.结果表明:有效桩长随桩数的增多而增大,随桩距的增大而减小;桩数增多,有效桩长对应的群桩的极限承载力降低,桩距的变化对有效桩长对应的群桩的极限承载力影响不大.
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| 关 键 词： | 大直径超长群桩 有效桩长 极限承载力 有限元分析 |
Parametric finite element analysis of effective pile-length in super-long and large-diameter pile groups |
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| CHEN Pei-Zhen
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LUAN Mao-Tian
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LUO Qiang.Parametric finite element analysis of effective pile-length in super-long and large-diameter pile groups[J].Journal of the Graduate School of the Chinese Academy of Sciences,2012,29(3):307-311. |
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| Authors: | CHEN Pei-Zhen LUAN Mao-Tian LUO Qiang |
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| Institution: | 1,2(1 State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China;2 Institute of Geotechncial Engineering,School of Civil and Hydraulic Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China) |
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| Abstract: | Based on the framework of FEM software ABAUQS,the three-dimensional numerical analysis for effective length of super-long and large-diameter pile groups is provided.For the pile groups of different arrangements under vertical loading,the effective pile-length was analyzed with the method of bearing capacity control.The results show that the effective pile-length increases with pile number while decreases with the space between piles.The corresponding bearing capacity decreases with pile number while the space between piles has little effect on the corresponding bearing capacity. |
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| Keywords: | super-long and large-diameter pile groups effective length of piles bearing capacity finite element analysis |
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