兰州某深基坑三维有限元分析

董建华; 朱彦鹏

兰州某深基坑三维有限元分析 English Version

董建华^1,2,
朱彦鹏^1,2

(1. 兰州理工大学甘肃省土木工程防灾减灾重点实验室，甘肃兰州 730050；2. 西部土木工程防灾减灾教育部工程研究中心，甘肃兰州 730050)

详细信息

作者简介:
董建华(1980– )，男，甘肃甘谷人，博士，副教授，硕士生导师，主要从事柔性支挡静动力、地基处理及基坑工程等方面的研究与教学工作。

中图分类号: TU473
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出版历程
- 收稿日期: 2012-11-12
- 发布日期: 2012-11-12

3-D finite element analysis of a deep excavation in Lanzhou area

DONG Jian-hua^1,2,
ZHU Yan-peng^1,2

(1. Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou 730050, China; 2. Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China)

摘要

摘要: 对兰州某实际工程通过方案优选，提出上部采用土钉墙、下部采用排桩预应力锚杆联合支护技术，并进行了支护结构及降水设计。采用大型非线性分析软件对其进行了开挖支护与降水施工全过程模拟，得到了基坑周围地下水渗流场和位移场分布，支护结构内力变化情况。将有限元计算值与实际监测进行了对比，二者比较接近。结果表明该联合支护体系是一种有效的支护技术，可为兰州地区类似工程的支护及降水设计提供有益参考。
- 深基坑 /
- 排桩预应力锚杆 /
- 土钉墙 /
- 降水 /
- 有限元法
Abstract: Through plan optimization of a real project in Lanzhou area, a combining supporting technology of the upper soil-nailing wall and the lower the row piles with pre-stress anchors is proposed. The design of supporting structure and dewatering are carried out. The large nonlinear analysis software is used for the construction process simulation of the supporting and dewatering. The groundwater seepage field and displacement distribution field around the excavation and the supporting structure change of internal force are obtained. The finite element results are comparison with the actual monitoring values, and they are in good agreement. The results show that the combining supporting system is a kind of effective support technology, and it may provide reference for the supporting and dewatering design of similar projects in Lanzhou area.
- deep excavation /
- pile with prestress anchors /
- soil-nailing wall /
- dewatering /
- finite element method

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参考文献(9)

[1]	朱彦鹏, 李忠. 深基坑土钉支护稳定性分析方法的改进及软件开发[J]. 岩土工程学报, 2005, 27(8): 939–943. (ZHU Yan-peng, LI Zhong. Improvement on stability analysis of soil nailing in foundation excavations and its software development[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(8): 939–943. (in Chinese))
[2]	朱彦鹏, 王秀丽, 狄生奎, 等. 黄土边坡建筑的抗滑移设计[J]. 甘肃工业大学学报, 2002, 28(2): 85–89. (ZHU Yan-peng, WANG Xiu-li, DI Sheng-kui, et al. Antislip design of buildings on loess verge-slope[J]. Journal of Gansu University of Technology, 2002, 28(2): 85–89. (in Chinese))
[3]	朱彦鹏, 王秀丽, 张贵文, 等. 兰州中广大厦超长深基坑支护的设计、施工与实验监测[J]. 工程力学, 2003, 19(增刊): 336–341. (ZHU Yan-peng, WANG Xiu-li, ZHANG Gui-wen, et al. Design, construction and experimental monitoring of deep foundation in Zhongguang highrise building of Lanzhou[J]. Engineering Mechanics, 2003, 19(S0): 336–341. (in Chinese))
[4]	李忠, 朱彦鹏. 框架预应力锚杆边坡支护结构稳定性计算方法及其工程应用[J]. 岩石力学与工程学报, 2005, 24(21): 3922–3926. (LI Zhong, ZHU Yan-peng. Stability calculation methods for grillage supporting structure with prestressed anchor and its application[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(21): 3922–3926. (in Chinese))
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兰州某深基坑三维有限元分析 English Version

作者简介: 董建华(1980– )，男，甘肃甘谷人，博士，副教授，硕士生导师，主要从事柔性支挡静动力、地基处理及基坑工程等方面的研究与教学工作。

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3-D finite element analysis of a deep excavation in Lanzhou area

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出版历程

目录

作者简介:
董建华(1980– )，男，甘肃甘谷人，博士，副教授，硕士生导师，主要从事柔性支挡静动力、地基处理及基坑工程等方面的研究与教学工作。