超深群桩对邻近已有隧道的影响研究

李镜培; 王昆

超深群桩对邻近已有隧道的影响研究 English Version

李镜培^1,2,,
王昆^1,2

1.同济大学岩土及地下工程教育部重点实验室,上海 200092 ； 2. 同济大学地下建筑与工程系,上海 200092

基金项目: 上海市科委“科技创新行动计划 ”项目( 09231200900)

详细信息

作者简介:
李镜培 (1963 – ) ,男,教授、博士生导师,主要研究方向为岩土力学及桩基础工程。

中图分类号: TU473
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- 文章访问数: 1270
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- PDF下载量: 391
出版历程
- 收稿日期: 2011-08-01
- 发布日期: 2011-12-06

Influence of extra-deep pile groups on existing neighboring tunnels

LI Jing-pei^1,2,,
WANG Kun^1,2

1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China; 2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China

摘要

摘要: 针对邻近高层建筑桩基础对地铁隧道的影响问题,分析超深群桩在工作荷载下对邻近土体应力状态和已有隧道沉降的影响。以改进后的剪切位移法为基础,考虑桩间加筋和遮拦效应的影响,得到刚性承台下群桩的荷载分布特性；结合 Mindlin 解和引入空隙参数的土体位移场公式,求解隧道剖面的平面应变解答。编制 Matlab 程序进行计算,对群桩与隧道的相对距离、布桩方式、荷载水平和群桩规模等因素进行分析,得出了一些有益的结论。
- 超深群桩 /
- 隧道 /
- 剪切位移法 /
- 位移场 /
- 平面应变
Abstract: According to the influence of pile groups of high-rise buildings on nearby metro tunnels, the stress of neighboring soils and the settlement of neighboring tunnels caused by extra-deep pile groups under the work loading are analyzed. The load spreading property of pile groups under rigid cushion cup is obtained based on the improved shear displacement method as well as piles reinforced and shielding effects. Then the plain strain of profile of tunnels is calculated by combining the given load spreading property and the Mindlin answer and the formula of displacement field of soil. In this way Matlab programs are made to draw some useful conclusions by analyzing the influence factors for the settlement of tunnels including distance between them, collocation of piles, loading level and scale of piles.
- extra-deep pile group /
- tunnel /
- shear displacement method /
- displacement field /
- plain strain

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参考文献(14)

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文章访问数: 1270
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超深群桩对邻近已有隧道的影响研究 English Version

作者简介: 李镜培 (1963 – ) ,男,教授、博士生导师,主要研究方向为岩土力学及桩基础工程。

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出版历程

Influence of extra-deep pile groups on existing neighboring tunnels

计量

出版历程

目录

作者简介:
李镜培 (1963 – ) ,男,教授、博士生导师,主要研究方向为岩土力学及桩基础工程。