|本期目录/Table of Contents|

[1]王超雄,胡裕琛,莫品强.,等.下穿隧道对邻近桩基承载力与沉降的影响[J].建筑科学与工程学报,2021,38(03):117-126.[doi:10.19815/j.jace.2020.06031]
 WANG Chao-xiong,HU Yu-chen,MO Pin-qiang,et al.Influence of Underpass Tunnel on Bearing Capacity and Settlement of Adjacent Pile Foundation[J].Journal of Architecture and Civil Engineering,2021,38(03):117-126.[doi:10.19815/j.jace.2020.06031]
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下穿隧道对邻近桩基承载力与沉降的影响(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
38卷
期数:
2021年03期
页码:
117-126
栏目:
出版日期:
2021-05-25

文章信息/Info

Title:
Influence of Underpass Tunnel on Bearing Capacity and Settlement of Adjacent Pile Foundation
作者:
王超雄1胡裕琛23莫品强2.3高新慰23
(1. 中冶集团武汉勘察研究院有限公司,湖北 武汉 430080; 2. 中国矿业大学 深部岩土力学与地下工程国家重点实验室,江苏 徐州 221116; 3. 中国矿业大学 力学与土木工程学院,江苏 徐州 221116)
Author(s):
WANG Chao-xiong1 HU Yu-chen23 MO Pin-qiang23 GAO Xin-wei23
(1. Wuhan Surveying-geotechnical Research Institute Co., Ltd of MCC,Wuhan 430080, Hubei, China; 2. State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China; 3. School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China)
关键词:
隧道开挖 桩基 小孔扩张-收缩理论 承载力 沉降
Keywords:
tunnel excavation pile foundation cavity expansion-contraction theory bearing capacity settlement
分类号:
TU473
DOI:
10.19815/j.jace.2020.06031
文献标志码:
A
摘要:
总结了下穿隧道开挖对邻近桩基产生的影响和小孔扩张-收缩理论的相关研究,分析了两阶段分析法、整体分析法和室内模型试验3种常见研究隧道-桩基相互作用方法的优缺点,同时在总结岩土介质小孔扩张-收缩理论研究及其在桩基工程和隧道工程中应用的基础上,指出了现有小孔扩张-收缩理论在研究浅埋隧道开挖中的不足。提出一种关于浅埋隧道-桩基相互作用的求解思路,即考虑地表效应的影响,采用有限介质小孔扩张-收缩理论进行求解。给出了该方法的初始计算模型和计算流程图,并将理论计算所得各阶段土体的位移场与离心模型试验结果进行对比,验证了方法的可行性,最后基于此计算模型给出了各阶段土体的应力场及变化量。结果表明:小孔扩张-收缩理论可以考虑三维隧道开挖对邻近桩基的影响,为解决隧道-桩基相互作用提供了新的解决思路。
Abstract:
The influence of tunnel excavation on the adjacent pile foundations was reviewed, and the relevant studies on the theory of cavity expansion-contraction were summarized. The advantages and disadvantages of existing three common research methods for tunnel-pile interaction were analyzed, including the two-stage method, overall analysis method and indoor model test. On the basis of summarizing research on the theory of cavity expansion-contraction theory in geomaterials and its application in pile foundation engineering and tunnel engineering, the shortcomings of the existing cavity expansion-contraction theory for the study of shallow tunnel excavation were pointed out. Therefore, it was proposed that the interaction between shallow buried tunnel and pile foundation should be solved by using the theory of cavity expansion-contraction in a finite media considering the influence of surface effect. In addition, the initial calculation model and calculation flowchart of the method were provided, the displacement field of each stage of soil obtained by theoretical calculation was compared with the results of centrifugal model test, and the feasibility of the method was verified. Finally, based on the model, the stress field and variation of soil in each stage were given. The results show that the influence of three-dimensional tunnel excavation on adjacent pile foundations can be considered in the theory of cavity expansion-contraction, which provides a new solution to the interaction between tunnel and pile foundation.

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备注/Memo

备注/Memo:
收稿日期:2020-06-13
基金项目:江苏省科技计划项目青年基金项目(BK20170279); 中国博士后科学基金项目(2017M621866); 江苏省博士后科研资助计划项目(1701196B)
作者简介:王超雄(1974-),男,湖北武汉人,高级工程师,E-mail:13385281515@163.com。

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更新日期/Last Update: 2021-05-20