| 双排桩复合土钉支护基坑的工程实例分析 |
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| 引用本文： | 杜烨,王君鹏,严平.双排桩复合土钉支护基坑的工程实例分析[J].工程勘察,2010(1):33-36. |
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| 作者姓名： | 杜烨 王君鹏 严平 |
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| 作者单位： | 山东科技大学矿山灾害预防控制教育部重点实验室;青岛理工大学;浙江大学; |
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| 基金项目： | 山东科技大学科学研究“春蕾计划”项目资助(2008BWZ001) |
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| 摘 要： | 通过一个具体的工程实例,采用数值分析的方法,模拟基坑开挖过程中双排毛竹桩复合土钉支护结构的受力性状,并与实测结果进行了比较,探讨了影响双排桩复合土钉支护基坑侧向变形和体系内力的因素。通过有限元数值分析结果与现场实测数据对比表明,二维有限元数值分析在一定程度上能够反映现场双排桩复合土钉支护基坑开挖的变形和内力分布情况。计算结果表明:土钉中的内力与其位置有较大的相关性,中上部的土钉受力较大,底部的土钉受力较小;各层土钉轴力是在开挖下一层土体时引起的,并且随着开挖进行,土钉的轴力逐渐增大;双排桩的刚度对基坑的侧向位移有较大影响。
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| 关 键 词： | 基坑工程 双排桩 土钉支护 有限元 侧向变形 |
Analysis of behavior of nailing supported wall with double-row-pile in excavation |
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| Du Ye,Wang JunPeng,Yan Ping.Analysis of behavior of nailing supported wall with double-row-pile in excavation[J].Geotechnical Investigation & Surveying,2010(1):33-36. |
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| Authors: | Du Ye Wang JunPeng Yan Ping |
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| Affiliation: | 1.Key Laboratory of Mine Disaster Prevention and Control of Ministry of Education;Shandong University of Science and Technology;Qingdao 266510;China;2.Qingdao Technological University;Qingdao 266520;3.Zhejiang University;Hangzhou 310027;China |
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| Abstract: | The behavior of a nailed retaining wall with double-row-pile was analyzed through a case by using 2D FEM analysis.The retaining walls with double-row-pile were used for excavation work of a built foundation.The calculated results were compared with the field measured values.The results show that the numerical analysis can simulate field performance fairly wel1.The distribution of tension force in nail and stiffness of double-row-pile were discussed.The results show that stiffness of double-row-pile has grea... |
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| Keywords: | excavation double-row-pile nail supporting wall FEM lateral displacement |
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