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水泥土搅拌桩复合地基承载力公式中折减系数β取值的分析
引用本文:黄春霞,张鸿儒,桂国庆.水泥土搅拌桩复合地基承载力公式中折减系数β取值的分析[J].力学学报,2003,11(4):385-389.
作者姓名:黄春霞  张鸿儒  桂国庆
作者单位:1. 北方交通大学土木建筑工程学院,北京100044; 2. 南昌大学土木工程学院,南昌330029
摘    要:水泥土搅拌桩复合地基承载力设计公式中的桩间土承载力折减系数 β值需根据经验确定,且取值范围较大。因此,要准确计算出复合地基承载力有一定难度。本文根据桩土共同作用机理,探讨了折减系数 β的各种影响因素。在比较研究了一些典型工程静载试验的实测资料之后,对系数 β的取值作了具体分析并给出了合理的建议值。

关 键 词:水泥土搅拌桩  复合地基  承载力  折减系数β
收稿时间:2002-09-04
修稿时间:2002-12-12

ANALYSIS OF REDUCED COEFFICIENT &beta|IN FORMULA FOR BEARING CAPACITY OF CEMENT-SOIL MIXED PILE COMPOSITE FOUNDATION
HUANG Chunxia,ZHANG Hongru,GUI Guoqing.ANALYSIS OF REDUCED COEFFICIENT &beta|IN FORMULA FOR BEARING CAPACITY OF CEMENT-SOIL MIXED PILE COMPOSITE FOUNDATION[J].chinese journal of theoretical and applied mechanics,2003,11(4):385-389.
Authors:HUANG Chunxia  ZHANG Hongru  GUI Guoqing
Institution:1. North Jiaotong University, Beijing100044; 2. Nanchang University, Nanchang330029
Abstract:The reduced coefficient β in formula for designing for bearing capacity of cement-soil mixedpile composite foundation was determined by the experiences and the range of β is wide. So, it is difficult to accurately calculate bearing capacity of composite foundation. Based on the interaction of pile and soil, this paper discusses various factors influencing the reduced coefficient β . By comparing the field static load test results of some typical engineering projects, the reduced parameter β is analyzedand suggested its reasonable value.
Keywords:Cement-soil mixedpile  Composite foundation  bearing capacity  Reduced parameter&beta  
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