| 粉喷桩复合地基承载力分析方法研究 |
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| 引用本文： | 魏瑞,张豪. 粉喷桩复合地基承载力分析方法研究[J]. 中南公路工程, 2010, 0(2): 40-42,52 |
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| 作者姓名： | 魏瑞 张豪 |
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| 作者单位： | 中国中铁一局集团第五工程有限公司;山东菏泽通达交通工程监理有限公司; |
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| 摘 要： | 首先深入分析了粉喷桩复合地基的承载机理,在此基础上,考虑粉喷桩与桩周土体的变形协调,采用扩孔理论,导出了粉喷桩与桩周土体的应力应变计算公式,以及粉喷桩的影响范围,并提出了基于桩土应力比的粉喷桩桩复合地基承载力计算方法。现场工程对比试验表明,计算方法与实测数据吻合较好,可满足工程设计计算的需要。
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| 关 键 词： | 粉喷桩复合地基 扩孔理论 承载力 现场试验 |
Study on the Calculation of Bearing Capacity of Dry Jet Mixing Pile Composite Foundation |
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| WEI Rui,ZHANG Hao. Study on the Calculation of Bearing Capacity of Dry Jet Mixing Pile Composite Foundation[J]. Central South Highway Engineering, 2010, 0(2): 40-42,52 |
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| Authors: | WEI Rui ZHANG Hao |
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| Affiliation: | WEI Rui1,ZHANG Hao2(1.The Fifth Engineering Co.,ltd of China Railway First Group,Baoji,Shanxi 721006,China,2.Tongda Engineering Surveillance Company of Sh,ong Heze,Heze,Sh,ong 274000,China) |
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| Abstract: | Firstly,the mechanics of dry jet mixing pile composite foundation is studied deeply.The strain and stress of the piles and soil is deduced according to the theory of round-hole expansion,which considered the deformation coordination of the piles and soil.Then a calculation for the bearing capacity of dry jet mixing pile composite foundation is established based on the stress ratio of the piles and soil.Finally,an in-site test is carried out to verify the calculation,and the comparison shows the calculation ... |
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| Keywords: | DJM pile composite foundation theory of round-hole expansion bearing capacity in-site test |
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