| PHC管桩劲性水泥土墙的受力特性分析 |
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| 引用本文： | 刘洋,卫龙武,郭彤. PHC管桩劲性水泥土墙的受力特性分析[J]. 江苏建筑, 2008, 0(3): 21-23 |
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| 作者姓名： | 刘洋 卫龙武 郭彤 |
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| 作者单位： | 东南大学土木工程学院,江苏,南京,210096 |
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| 摘 要： | 分析了PHC管桩劲性水泥土墙的承载力特性,并对PHC管桩进行了足尺抗弯试验,发现管桩的抗弯刚度在弹性阶段很大,但是从弹塑性阶段到屈服阶段的变化速度加快,因此建议取PHC管桩极限弯矩值的60%作为挡墙的弯矩设计值;介绍了PHC管桩劲性水泥土墙在某隧道基坑工程的应用,通过与钻孔灌注桩挡墙在变形、水平位移、地表沉降等方面的比较,总结出PHC管桩劲性水泥土墙承载力特性及对于基坑变形控制的优越性.
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| 关 键 词： | PHC管桩 劲性水泥土墙 承载力 变形 |
| 文章编号： | 1005-6270(2008)03-0021-03 |
| 修稿时间： | 2008-04-25 |
Analysis of Mechanical Behavior of PHC Tube Pile Soil Mixing Wall |
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| LIU Yang,WEI Long-wu,GUO Tong. Analysis of Mechanical Behavior of PHC Tube Pile Soil Mixing Wall[J]. Jiangsu Construction, 2008, 0(3): 21-23 |
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| Authors: | LIU Yang WEI Long-wu GUO Tong |
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| Affiliation: | LIU Yang WEI Long-wu GUO Tong(Department of Civil Engineering,Southeast University,Nanjing Jiangsu 210096 China) |
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| Abstract: | The bearing capacity of the PHC tube pile soil mixing wall is analyzed.Through the full-scale beading test on the PHC tube pile,it is found that the flexural stiffness of PHC tube pile is very large in the flexible stage,but it varies rapidly from the elastoplastic stage to the yielding stage,therefore,it is suggested that 60 percentage of the ultimate strength should be taken as the design bearing capacity.In addition,the application of the PHC tube pile soil mixing wall in a certain tunnel foundation pit ... |
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| Keywords: | PHC tube pile soil mixing wall bearing capacity deformation |
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