[1]郭力群,陈亚军,徐芳超.延深基坑桩锚加固支护结构力学特性分析[J].华侨大学学报(自然科学版),2015,36(1):86-90.[doi:10.11830/ISSN.1000-5013.2015.01.0086]
 GUO Li-qun,CHEN Ya-jun,XU Fang-chao.Analysis on Mechanical Characteristics of Deepening Excavation Foundation Pit Reinforced by Pile-Anchor Structure[J].Journal of Huaqiao University(Natural Science),2015,36(1):86-90.[doi:10.11830/ISSN.1000-5013.2015.01.0086]
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延深基坑桩锚加固支护结构力学特性分析()
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《华侨大学学报(自然科学版)》[ISSN:1000-5013/CN:35-1079/N]

卷:
第36卷
期数:
2015年第1期
页码:
86-90
栏目:
出版日期:
2015-01-20

文章信息/Info

Title:
Analysis on Mechanical Characteristics of Deepening Excavation Foundation Pit Reinforced by Pile-Anchor Structure
文章编号:
1000-5013(2015)01-0086-05
作者:
郭力群 陈亚军 徐芳超
华侨大学 土木工程学院, 福建 厦门 361021
Author(s):
GUO Li-qun CHEN Ya-jun XU Fang-chao
College of Civil Engineering, Huaqiao University, Xiamen 361021, China
关键词:
延深开挖 加固支护结构 力学特性 数值模拟
Keywords:
deepening excavation reinforced supporting structure mechanical characteristics numerical simulation
分类号:
TU473
DOI:
10.11830/ISSN.1000-5013.2015.01.0086
文献标志码:
A
摘要:
运用Zsoil有限元软件建立桩锚支护延深开挖基坑数值模型,对加固支护结构连梁的节点连接形式、截面尺寸、支护平台宽度、二级支护桩的桩径和桩间距以及嵌入比等影响因数进行分析.结果表明:连梁节点连接形式,支护平台宽度对控制延深开挖基坑支护结构的受力和变形有明显影响.
Abstract:
The deepening excavation foundation pit is required to reinforce the original supporting structure. The reinforced supporting structures are designed based on experience, and are not understanding the mechanical characteristics and influencing factors. The numerical model of deepening excavation reinforced by pile-anchor structure is established by the FEM software Zsoil to study the influence of various factors on force and deformation characteristics, including the factors are as follows: the coupling form and stiffness of coupling beams; the platform width; the embedded ratio, spacing, stiffness of second-stage piles. The results show that the coupling form of coupling beams and the platform width have a significant effect on the force and deformation of deepening excavation foundation pit.

参考文献/References:

[1] 吴铭炳,戴一鸣,林颖孜,等.基坑加深的加固措施及其效果[J].岩土工程学报,2010,32(增刊2):459-462.
[2] 李冰河.粉砂土地基既有超大基坑加深的支护技术及效果分析[J].建筑结构,2011,41(5):104-107.
[3] 刘兴旺,陈卫林,李志飙,等.某大型工程施工阶段地下室加层的基坑支护技术[J].建筑结构,2012,42(8):104-106.
[4] 李胜杰.支护结构完成后基坑加深的加固技术[J].四川建筑,2013,33(1):69-71.
[5] 顾赞勇,胡安峰,陈博浪.二级联合支护结构深基坑整体稳定性分析[J].结构工程师,2012,28(5):111-117.
[6] 刘婺,刘书波.基坑临时加深双层围护结构破坏研究[J].建筑结构,2013,43(增刊2):605-608.
[7] 陈亚军,郭力群,徐芳超.基坑延深开挖复合支护结构有限元模拟[J].华侨大学学报:自然科学版,2013,34(3):316-319.
[8] 孙巍,范益群,黄新刚.外滩交通枢纽大型地下空间开发中几个关键问题研究[J].市政技术,2009,27(增刊 2):3-9.
[9] 郑晏华.上海外滩通道综合改造工程中特大基坑的分幅施工技术[J].建筑施工,2010,32(12):1187-1188.
[10] BENZ T.Small strain stiffness of soils and its numerical consequences[D].Stuttgart:Universityof Stuttgart,2006:147-149.

备注/Memo

备注/Memo:
收稿日期: 2014-06-09
通信作者: 郭力群(1970-),男,副教授,主要从事岩土工程的研究.E-mail:guoliqun@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(51208218)
更新日期/Last Update: 2015-01-20