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| 深基坑开挖变形及被动区土体应力分析 | |
| 引用本文： | 付艳斌,杨骏,王铁行.深基坑开挖变形及被动区土体应力分析[J].广西大学学报(自然科学版),2009,34(3). |
| 作者姓名： | 付艳斌 杨骏 王铁行 |
| 作者单位： | 1. 深圳大学土木工程学院,广东深圳,518060 2. 深圳地铁有限公司,广东深圳,518026 3. 西安建筑科技大学土木工程学院,陕西西安,710055 |
| 基金项目： | 国家863计划资助项目，深圳市科技计划项目 |
| 摘 要： | 以基坑插入比和宽高比作为主要影响因素,采用有限元法对基坑开挖全过程数值模拟,分析基坑开挖应力应变变化规律.结果表明基坑宽高比对水平应力变化比较敏感,插入比对基坑变形比较敏感.最后对基坑侧压力系数进行了理论推导,验证了数值模拟结果并指出了理论公式的局限性. |
| 关 键 词： | 深基坑 基坑变形 土体水平应力 |
Analysis on deformation and stress in passive area of the pit |
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| FU Yan-bin,YANG Jun,WANG Tie-hang.Analysis on deformation and stress in passive area of the pit[J].Journal of Guangxi University(Natural Science Edition),2009,34(3). | |
| Authors: | FU Yan-bin YANG Jun WANG Tie-hang |
| Institution: | 1.College of Civil Engineering;Shenzhen University;Shenzhen 518060;China;2.Shenzhen Metro Co.LTD;Shenzhen 518026;3.College Of Civil Engineering;Xi'an University of architecture and technology;Xi'an 710055;China |
| Abstract: | In order to study the stress-strain characteristics of the excavation,the finite element method was used to simulate different construction schemes of the excavation by changing the insertion ratio and the ratio of width and height.The result showed that the ratio of width and height was sensitive to horizontal stress and the insertion ratio was sensitive to the deformation in excavation.Lateral pressure coefficient were derived theoretically and compared with the simulated results for verification,then the... |
| Keywords: | deep excavation excavation deformation horizontal stress of soil |
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