土岩组合地层加锚双排桩基坑支护结构数值分析

刘红军; 翟桂林; 郑建国

土岩组合地层加锚双排桩基坑支护结构数值分析 English Version

(1. 海洋环境与生态教育部重点实验室，中国海洋大学，山东青岛 266100；2. 中国海洋大学环境科学与工程学院，山东青岛 266100)

详细信息

作者简介:
刘红军(1966– )，男，江苏靖江人，中国海洋大学教授，博导，主要从事环境岩土工程的教学科研工作。

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

Numerical analysis of supporting structures of anchored double-row piles for excavations in strata of “soil-rock” dualistic structure

(1. Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China; 2. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China)

摘要

摘要: 为丰富加锚双排桩支护在土岩二元结构地区设计与施工中的经验，以青岛某典型基坑工程为背景，应用平面应变有限元法对桩体位移和弯矩变化进行数值模拟，选择桩体刚度、排距和嵌岩深度三个主要的影响因素进行分析，并对比现场监测资料。结果表明，加锚双排桩具有较大的侧向刚度，能较好地控制基坑工程的变形。本文研究可以为今后类似的支护结构设计提供借鉴。
- 土岩组合地层 /
- 双排桩 /
- 基坑变形 /
- 有限元
Abstract: In order to gather the design and construction experience for anchored double-row piles in strata of soil-rock dualistic structure, a typical project in Qingdao is used as the case to study the variation of displacement and bending moment of piles by means of the plane strain FEM. The three factors of row distance, rigidity of piles and depth of embedded piles are analyzed. The computed results are compared with the in-situ monitoring data. It shows that such anchored double-row piles have more lateral stiffness and can limit the deformation of the excavation. This research will serve as a theoretical reference for similar projects in future.
- soil-rock dualistic structure /
- double-row pile /
- excavation deformation /
- finite element method

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参考文献(7)

[1]	蔡袁强, 阮连法, 吴世明, 等. 软粘土地基基坑开挖中双排桩式围护结构数值分析与工程应用[J]. 建筑结构学报, 1999, 20(4): 65–71. (CAI Yuan-qiang, RUAN Lian-fa, WU Shi-ming, et al. Finite element analysis and application of deep excavation with retaining structure of double-row piles in soft clay[J]. Journal of Building Structures, 1999, 20(4): 65–71. (in Chinese))
[2]	应宏伟, 初振环. 深基坑带撑双排桩支护结构有限元分析.岩石力学与工程学报[J]. 2007, 26(增刊2): 4325–4331. (YIN Hong-wei, CHU Zhen-huan. Finite element analysis of deep excavation with braced retaining structure of double-row piles[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(S2): 4325–4331. (in Chinese))
[3]	陈东, 屠少英, 刘兴旺. 广利大厦地下室基坑支护[C]// 浙江省第十届土力学及岩土工程学术讨论会论文集. 北京:中国建材工业出版社, 2004: 107–111. (CHEN Dong, TU Shao-ying, LIU Xing-wang. Retaining structure of Guangli Building excavation[C]// Proceedings of 10th Zhejiang Regional Conference on Soil Mechanics and Geotechnical Engineering. Beijing: China Building Material Industry Publishing Company, 2004: 107–111. (in Chinese))
[4]	刘红军, 王亚军, 姜德鸿, 等. 土岩组合双排吊脚桩桩锚支护基坑变形数值分析[J]. 岩石力学与工程学报, 2011, 30(增刊2): 4099–4103. (LIU Hong-jun, WANG Ya-jun, JIANG De-hong, et al. Numerical analysis of deep foundation pit displacement with double-row and end-suspended piles in strata of soil-rock dualistic structure[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(S2): 4009–4103. (in Chinese))
[5]	聂庆科, 胡建敏, 吴刚. 深基坑双排桩支护结构上的变形和土压力研究[J]. 岩土力学, 2008, 29(11): 3089–3094. (NIE Qing-ke, HU Jian-min, WU Gang. Deformation and earth pressure of a double-row piles retaining structure for deep excavation[J]. Rock and Soil Mechanics, 2008, 29(11): 3089–3094. (in Chinese))
[6]	林鹏, 王艳峰, 范志雄, 等. 双排桩支护结构在软土基坑工程中的应用分析[J]. 岩土工程学报, 2010, 32(增刊2): 331–334. (LIN Peng, WANG Yan-feng, FAN Zhi-xiong, et al. Application and analysis of retaining structure with double-row piles in soft ground excavation engineering[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(S2): 331–334. (in Chinese))
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文章访问数: 1094
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土岩组合地层加锚双排桩基坑支护结构数值分析 English Version

作者简介: 刘红军(1966– )，男，江苏靖江人，中国海洋大学教授，博导，主要从事环境岩土工程的教学科研工作。

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出版历程

Numerical analysis of supporting structures of anchored double-row piles for excavations in strata of “soil-rock” dualistic structure

计量

出版历程

目录

作者简介:
刘红军(1966– )，男，江苏靖江人，中国海洋大学教授，博导，主要从事环境岩土工程的教学科研工作。