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桩长对搅拌桩复合地基承载性能影响的数值分析
引用本文:张伟丽,蔡健,郭嘉,林奕禧,黄良机.桩长对搅拌桩复合地基承载性能影响的数值分析[J].长江科学院院报,2010,27(12):64-67.
作者姓名:张伟丽  蔡健  郭嘉  林奕禧  黄良机
作者单位:华南理工大学,广州,510641;中国地质大学,岩土钻掘与防护教育部工程研究中心,武汉,430074;华南理工大学,广州,510641;中国地质大学,岩土钻掘与防护教育部工程研究中心,武汉,430074;珠海市建设工程质量监督检测站, 广东,珠海,519015
基金项目:国家自然科学基金资助项目(50878087); 珠海市科技基金资助项目(PA200310064)
摘    要: 在现场试验的基础上,利用FLAC3D建立数值模拟模型,改变水泥土搅拌桩复合地基的桩长,分别计算4种桩长复合地基的承载力、沉降以及桩、土应力,分析桩端进入硬土层的长度变化对复合地基承载性能的影响。结果表明,水泥土桩进入硬土层的长度对复合地基的承载力和沉降影响不显著,桩端进入硬土层深度范围宜为1~5倍桩径。

关 键 词:水泥土搅拌桩  复合地基  FLAC3D  桩长

Numerical Analysis on Effect of Pile Length on Bearing Capacity of Cement-Soil Mixing Pile Composite Foundation
ZHANG Wei-li,CAI Jian,GUO Jia,LIN Yi-xi,HUANG Liang-ji.Numerical Analysis on Effect of Pile Length on Bearing Capacity of Cement-Soil Mixing Pile Composite Foundation[J].Journal of Yangtze River Scientific Research Institute,2010,27(12):64-67.
Authors:ZHANG Wei-li  CAI Jian  GUO Jia  LIN Yi-xi  HUANG Liang-ji
Affiliation:1.South China University of Technology, Guangzhou 510641, China; 2. Engineering Research Centerof Rock Soil Drilling &; Excavation and Protection Ministry of Education, China University of Geosciences, Wuhan 430074, China; 3. Zhuhai Municipal Construction Engineering Quality Supervision&; Test Station, Zhuhai 519015,China
Abstract:Numerical simulation model were established with FLAC3D to calculate the bearing capacity,the settlement of composite foundation with different lengths of pile and the stress of pile and soil.The lengths of pile entered in the hard soil which have influence on the bearing behavior of composite foundation have been analyzed.The results show that the length of cement-soil pile entered in the hard soil has no obvious influence on the bearing capacity and the settlement of composite foundation.The length of the...
Keywords:cement-soil mixing pile  composite foundation  FLAC3D  pile length  
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