Advanced Search
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊
Volume 42 Issue 6
Turn off MathJax
Article Contents
Abstract
References
CHEN Ren-peng, LIU Shu-lun, MENG Fan-yan, YE Jun-neng, ZHU Bin. Centrifuge modeling of excavation effects on a nearby tunnel in soft clay[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(6): 1132-1138. DOI: 10.11779/CJGE202006018
Citation: CHEN Ren-peng, LIU Shu-lun, MENG Fan-yan, YE Jun-neng, ZHU Bin. Centrifuge modeling of excavation effects on a nearby tunnel in soft clay[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(6): 1132-1138. DOI: 10.11779/CJGE202006018
shu

Centrifuge modeling of excavation effects on a nearby tunnel in soft clay

  • 1.

    MOE Key Laboratory of Soft Soils and Geoenviromental Engineering, Zhejiang University, Hangzhou 310058, China

  • 2.

    Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China

  • 3.

    College of Civil Engineering, Hunan University, Changsha 410082, China

  • 4.

    Ningbo Rail Transit Group Co., Ltd., Ningbo 315012, China

More Information
  • Received Date: September 22, 2019
  • Available Online: December 07, 2022
    Graphical Abstract
    • Abstract
  • The centrifuge modeling with a similarity ratio of 1∶120 is carried out to investigate the impacts of an excavation on a nearby tunnel in soft clayey strata. The responses of undrained shear strength, pore water pressures, horizontal earth pressures around the tunnel, ground settlements, tunnel settlements and bending moments are obtained. The test results show that: (1) The exposure of the excavation base leads to the continuous evolution of the excess pore water pressures of soils below the excavation base and around the tunnel, together with both the magnitude and distribution changes of horizontal earth pressures around the tunnel. (2) Using the effective vertical stress reduction ratio-based equation for soil disturbance degree (SDD), SDD of soils with vertical distances of 0.3 and 0.7 times the excavation depth below the excavation base are 0.33 and 0.21, respectively. (3) Due to the existing tunnel, the ground surface settlements behind the diaphragm wall mainly locate at Zone II predicted by Peck (1969). (4) After excavation, the ground surface settlements, tunnel settlements and bending moments develop continuously. The tunnel settlement at 815 days after excavation is 1.6 times that during excavation stage. The consolidation and creep may be the main reasons for the continuous development of tunnel deformations and internal forces after excavation, implying that the exposure time of the excavation base should be minimized in real projects.
    • FullText(HTML)
    • References (19)
  • [1]
    陈仁朋, 王诚杰, 鲁立, 等. 开挖对地铁盾构隧道影响及控制措施[J]. 工程力学, 2017(12): 1-13. https://www.cnki.com.cn/Article/CJFDTOTAL-GCLX201712002.htm

    CHEN Ren-peng, WANG Cheng-jie, LU Li, et al. Influence of excavation on exist metro shield tunnel and control measures[J]. Engineering Mechanics, 2017(12): 1-13. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GCLX201712002.htm
    [2]
    康志军, 谭勇, 李想, 等. 基坑围护结构最大侧移深度对周边环境的影响[J]. 岩土力学, 2016, 37(10): 2909-2914. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201610023.htm

    KANG Zhi-jun, TAN Yong, LI Xiang, et al. Influences of depth of maximum lateral deflection of excavation support on adjacent environment[J]. Rock and Soil Mechanics, 2016, 37(10): 2909-2914. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201610023.htm
    [3]
    MENG F Y, CHEN R P, KANG X. Effects of tunneling-induced soil disturbance on post-construction settlement in structured soft soils[J]. Tunnelling and Underground Space Technology, 2018, 80: 53-63. doi: 10.1016/j.tust.2018.06.007
    [4]
    CHEN R P, MENG F Y, LI Z C, et al. Investigation of response of metro tunnels due to adjacent large excavation and protective measures in soft soils[J]. Tunnelling and Underground Space Technology, 2016, 58: 224-235. doi: 10.1016/j.tust.2016.06.002
    [5]
    郑刚, 杜一鸣, 刁钰, 等. 基坑开挖引起邻近既有隧道变形的影响区研究[J]. 岩土工程学报, 2016, 38(4): 599-612. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201604004.htm

    ZHENG Gang, DU Yi-ming, DIAO Yu, et al. Influenced zones for deformation of existing tunnels adjacent to excavations[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(4): 599-612. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201604004.htm
    [6]
    DOLEZALOVA M. Tunnel complex unloaded by a deep excavation[J]. Computers and Geotechnics, 2001, 28(6): 469-493.
    [7]
    SHI J W, NG C W W, CHEN Y. Three-dimensional numerical parametric study of the influence of basement excavation on existing tunnel[J]. Computers and Geotechnics, 2015, 63: 146-158. doi: 10.1016/j.compgeo.2014.09.002
    [8]
    NG C W W, SHI J W, HONG Y. Three-dimensional centrifuge modelling of basement excavation effects on an existing tunnel in dry sand[J]. Canadian Geotechnical Journal, 2013, 50(8): 874-888. doi: 10.1139/cgj-2012-0423
    [9]
    ZHENG G, WEI S W, PENG S Y, et al. Centrifuge modeling of the influence of basement excavation on existing tunnels[C]//Physical Modelling in Geotechnics - Proceedings of the 7th International Conference on Physical Modelling in Geotechnics, 2010, Zurich: 523-527.
    [10]
    陈仁朋, ALMADHAGIASHRAF , 孟凡衍. 基坑开挖对旁侧隧道影响及隔断墙作用离心模型试验研究[J]. 岩土工程学报, 2018, 40(增刊2): 6-11. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2018S2004.htm

    CHEN Ren-peng, ALMADHAGIASHRAF , MENG Fan-yan. Three- dimensional centrifuge modeling of influence of nearby excavations on existing tunnels and effects of cut-off walls[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(S2): 6-11. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2018S2004.htm
    [11]
    XIE Y, LEUNG C F, CHOW Y K. Centrifuge modelling of spudcan-pile interaction in soft clay[J]. Géotechnique, 2012, 62(9): 799-810. doi: 10.1680/geot.12.OG.003
    [12]
    TAYLOR R N. Geotechnical Centrifuge Technology[M]. London: Blackie Academic and Professional, 1995.
    [13]
    LAM S S Y. Ground Movements Due to Excavation in Clay: Physical and Analytical Models[D]. Cambridge: University of Cambridge, 2010.
    [14]
    魏少伟. 基坑开挖对坑底已建隧道影响的数值与离心试验研究[D]. 天津: 天津大学, 2010.

    WEI Shao-wei. Centrifuge and Numerical Studies of the Influence of Basement Excavation on the Underlying Tunnel[D]. Tianjin: Tianjin University, 2010. (in Chinese)
    [15]
    梁发云, 褚峰, 宋著, 等. 紧邻地铁枢纽深基坑变形特性离心模型试验研究[J]. 岩土力学, 2012, 33(3): 657-664. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201203004.htm

    LIANG Fa-yun, CHU Feng, SONG Zhu, et al. Centrifugal model test research on deformation behaviors of deep foundation pit adjacent to metro stations[J]. Rock and Soil Mechanics. 2012, 33(3): 657-664. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201203004.htm
    [16]
    XU Y F, SUN D A, SUN J, et al. Soil disturbance of shanghai silty clay during EPB tunnelling[J]. Tunnelling and Underground Space Technology, 2003, 18(5): 537-545.
    [17]
    HARAHAP S E, OU C Y. Finite element analysis of time- dependent behavior in deep excavations[J]. Computers and Geotechnics, 2019, 103300.
    [18]
    OU C Y, LIAO J T, CHENG W L. Building response and ground movements induced by a deep excavation[J]. Géotechnique, 2000, 50(3): 209-220.
    [19]
    PECK R B. Deep excavation and tunneling in soft ground. State-of-the-art-report[C]//Proc 7th Int Conf of Soil Mechanics and Foundation Engineering, International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE), 1969, Mexico City: 225-281.
    • Related Articles
  • Supplements (0)

  • Cited by

    Periodical cited type(11)

    1. 王恒泰. 基于有限元强度双折减系数法的非均质边坡稳定性分析. 山西建筑. 2025(08): 63-68+72 .
    2. 刘红修. 基于有限元强度折减法的三维边坡安全系数研究. 铁道建筑技术. 2025(05): 184-187+197 .
    3. 孙士国，周鑫，彭是焱. 基于残余位移增量判据的土石围堰边坡稳定性分析. 水电能源科学. 2024(02): 81-84 .
    4. 周东波，梅源，杨彤. 基于响应面法的砂质黄土路堑高边坡稳定性研究. 中国安全生产科学技术. 2024(07): 139-147 .
    5. 高俊，韩小柯，韩文超，党发宁，廖昌隆. 大倾角坝基上混凝土面板堆石坝滑移变形特征研究. 应用力学学报. 2024(04): 812-821 .
    6. 郭慧敏，杨兴隆，韩晓东，王探宇，亢有为，余振，梁兴龙. 广西苍梧路堑边坡稳定性分析. 科技和产业. 2024(15): 253-257 .
    7. 吴罡，阮永芬，李鹏辉，槐以高，乔文件. 极限平衡法与强度折减法在边坡稳定分析中的问题讨论. 贵州大学学报(自然科学版). 2024(05): 70-77 .
    8. 黄乐源，田城航，仉文岗，孟轩宇，闫国强，王鲁琦. 降雨作用下三维矿山边坡的力学状态响应. 土木与环境工程学报(中英文). 2024(06): 70-79 .
    9. 刘赞. 基于FLAC 3D的边坡支护方案优化研究. 西部交通科技. 2023(02): 50-53 .
    10. 侯世伟，焦宏宇，韩俊艳，张皓，李艳凤. 考虑衰减滞后的边坡分层强度折减原理. 土木工程与管理学报. 2023(06): 32-38 .
    11. 丘永富. 新疆蒙库铁矿露天采场南帮边坡稳定性分析及控制. 现代矿业. 2022(09): 237-240 .

    Other cited types(11)

Catalog

    Get Citation
    PDF
    XML
    Article views PDF downloads Cited by(22)
    Related
    Copyright © 2010 Editorial By Chinese Journal of Geotechnical Engineering 苏ICP备05007122号-11公安联网备案号：32010602011255
    Editorial Office address：34 Hujuguan,Nanjing 210024,ChinaPostal Code：210024Tel：025-85829534，85829556E-mail: ge@nhri.cn

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return