| 复合地基在地震作用下附加沉降的研究 |
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| 引用本文： | 刘东,贾智信,孙长军,乔京生.复合地基在地震作用下附加沉降的研究[J].路基工程,2011,0(3):114-116,119. |
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| 作者姓名： | 刘东 贾智信 孙长军 乔京生 |
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| 作者单位： | 1.唐山曹妃甸基础设施建设投资集团 河北唐山 063200 |
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| 摘 要： | 通过有限元程序ANSYS建立模型,研究了无边载复合地基、有边载复合地基在地震作用下的附加沉降,结果表明,采用复合地基技术,对减少附加沉降有很好的效果。由对群桩复合地基不同桩位特点进行分析得知,群桩复合地基中桩附加沉降大于边桩、角桩,提出了附加沉降系数的概念及计算式。引入边载作用下复合地基附加沉降修正系数的概念,有边载复合地基抗震陷能力优于无边载复合地基。
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| 关 键 词： | 复合地基 边载 地震作用 附加沉降 |
| 收稿时间： | 2019-11-09 |
Study on Additional Settlement of Composite Foundation under Earthquake Effect |
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| Authors: | LIU Dong JIA Zhi-xin SUN Chang-jun QIAO Jing-sheng |
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| Institution: | LIU Dong1,JIA Zhi-xin1,SUN Chang-jun1,QIAO Jing-sheng2 (1.Tangshan Caofeidian Infrastructure Construction Investment Group,Tangshan 063200,Hebei,China,2.School of Civil Engineering,Tangshan College,Tangshan 063000,China) |
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| Abstract: | The additional settlement of composite foundation with and without side load under earthquake effect is separately analyzed based on finite element model using ANSYS software.The results show that composite foundation has better effect in reducing additional settlement than natural foundation.In addition,through analyzing the characteristics of different pile positions in pile group composite foundation,it is shown that the additional settlement of middle pile is larger than that of side pile and corner pil... |
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| Keywords: | composite foundation side load earthquake effect additional settlement |
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