| 复合土钉支护的软土基坑开挖有限元模拟分析 |
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| 引用本文： | 俞缙,王艳芳,宋博学.复合土钉支护的软土基坑开挖有限元模拟分析[J].华侨大学学报(自然科学版),2011,32(2):212-217. |
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| 作者姓名： | 俞缙 王艳芳 宋博学 |
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| 作者单位： | 1. 华侨大学,岩土工程研究所,福建,泉州,362021
2. 江苏省交通科学研究院,江苏,南京,210017 |
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| 基金项目： | 福建省自然科学基金资助项目(2009J05125); 华侨大学高层次引进人才科研启动项目(08BS414); 福建省泉州市科技计划项目(2010Z81) |
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| 摘 要： | 基于平面应变假设,采用自行编制的有限元程序建立数值计算模型,考察某复合土钉支护工程下的软土基坑开挖变形性状及土钉的受力情况.结果表明,深搅桩-土钉/锚杆支护软土基坑中,锚杆张拉力的作用对基坑水平位移及受力影响较大;复合土钉支护结构并无特别针对坑底土体隆起的加固措施,须采用考虑时空效应的分层分块的开挖模式,以确保坑底隆起...
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| 关 键 词： | 软土基坑 复合土钉支护 开挖模式 有限元模拟 |
FEM Simulation of Composite Soil Nailing Supported Excavation in Soft Clay Pit |
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| YU Jin,WANG Yan-fang,SONG Bo-xue.FEM Simulation of Composite Soil Nailing Supported Excavation in Soft Clay Pit[J].Journal of Huaqiao University(Natural Science),2011,32(2):212-217. |
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| Authors: | YU Jin WANG Yan-fang SONG Bo-xue |
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| Institution: | YU Jin1,WANG Yan-fang2,SONG Bo-xue1(1.Institute of Geotechnical Engineering,Huaqiao University,Quanzhou 362021,China,2.Jiangsu Transportation Research Institute,Nanjing 210017,China) |
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| Abstract: | Based on plane strain hypothesis,the pit deformation and soil nailing stress during the excavation are analyzed for the composite soil nailing supported pit in soft clay by finite element program designed by ourselves.The results show: the suspender force of anchor rod influences obviously the horizontal displacement and stress in soft clay pit with deep-mixing pile,soil nailing and anchor rod.Because there is no reinforcement measure on pit bottom to prevent soil uplift in composite soil nailing supported ... |
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| Keywords: | soft clay pit composite soil nailing support excavation mode finite element method |
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