Stability of Excavation Face of Double‑Mode Shield in Earth Pressure Mode Crossing Fault Zone of Pearl River

Authors

TONG Bin, China Railway First Group Co ., Ltd., Xi’an, Shaanxi 710054 , ChinaFollow
ZHANG Bin, China Railway First Group Co ., Ltd., Xi’an, Shaanxi 710054 , China
ZHU Hanbiao, School of Civil Engineering , Central South University , Changsha , Hunan 410075 , China
WANG Shuying, School of Civil Engineering , Central South University , Changsha , Hunan 410075 , China ;Tunnel and Underground Engineering Research Center , Central South University , Changsha , Hunan 410075 , China ;Hunan Provincial Key Laboratory for Disaster Prevention and Mitigation of Rail Transit Engineering Structures , Central South University , Changsha , Hunan 410075 , China

Abstract

In view of the stability of the excavation face of the double-mode shield crossing the fault zone of the Pearl River，the project of the section from Hongshengsha Station to Yufengwei Station of the second phase of Guangzhou Metro Line Seven was studied.Through numerical simulations conducted to analyze the whole area and the local high-risk area of the shield crossing the fault zone of the Pearl River，this paper explored the construction risk of the shield crossing process.Besides，this paper analyzed the influence of different support stresses and grouting pressures on the stability of the excavation face and ground deformation，and finally，the tunneling parameters analysis was used to evaluate the rationality of numerical simulation.The results show that ① when the tunnel excavation surface is distributed with soft soil above and hard soil below，large ground settlement is prone to occur during the shield tunneling process.When it is distributed with hard soil above and soft soil below，large ground uplift is prone to occur；② The excavation face is likely to become unstable in the weak local stratum when the shield passes through the composite stratum.The soil mass in the weak stratum deforms towards the inside of the tunnel when the support stress is less than the static earth pressure in the weak stratum，and the deformation increases with the reduction of the support stress ratio；③ The grouting pressure does not affect the stability of the excavation face but is inversely proportional to the ground settlement.Greater grouting pressure indicates lighter ground settlement，and the shield tunneling verifies the correctness of the numerical simulation results.

Publication Date

10-28-2024

DOI

10.14048/j.issn.1671-2579.2024.05.026

First Page

232

Last Page

240

Submission Date

February 2025

Recommended Citation

Bin, TONG; Bin, ZHANG; Hanbiao, ZHU; and Shuying, WANG (2024) "Stability of Excavation Face of Double‑Mode Shield in Earth Pressure Mode Crossing Fault Zone of Pearl River," Journal of China & Foreign Highway: Vol. 44: Iss. 5, Article 26.
DOI: 10.14048/j.issn.1671-2579.2024.05.026
Available at: https://zwgl1980.csust.edu.cn/journal/vol44/iss5/26

Reference

[1]WANG S Y ,FU J Y ,ZHANG C ,et al .Shield tunnel engineering :From theory to practice [M].Amsterdam ,Netherlands : Elsevier ,2021 .
[2]李鑫 .雩山隧道断层破碎带稳定性分析及治理方法 [D].济南 : 山东大学 ,2015 .LI Xin .Stability analysis and treatment method of fault fracture zone in Lushan tunnel [D].Jinan : Shandong University ,2015 .
[3]赵颖 ,郭恩栋 ,刘智 ,等.走滑断层位错作用下城市地铁隧道损伤分析 [J].岩土力学 ,2014 ,35(增刊 2):467-473.ZHAO Ying ,GUO Endong ,LIU Zhi ,et al .Damage analysis of urban metro tunnel under strike-slip fault [J] Rock and Soil Mechanics ,2014 ,35(sup 2): 467-473.
[4]张佳 .瑶寨隧道断层破碎带结构受力与变形特性分析[D].西安 : 长安大学 ,2013 .ZHANG Jia .Analysis of stress and deformation characteristics of fault fracture zone structure in Yaozhai tunnel [D].Xi’an: Chang’an University ,2013 .
[5]王焰 .城际铁路大直径泥水盾构施工风险及对策 : 以佛莞城际铁路狮子洋隧道工程为例 [J].隧道建设 (中英文 ),2019 ,39(6): 983-988.WANG YAN .Construction risks and countermeasures for large ‒ diameter slurry shield used in ShiZiYang Tunnel on Foshan-Dongguan Intercity Railway [J].Tunnel Construction ,2019 ,39(6): 983-988.
[6]刘秉峰 ,张军伟 ,李雪 ,等.盾构隧道穿越特殊地质围岩位移向量趋势线变形响应特征 [J].隧道建设 (中英文 ),2019 ,39(2): 240-245.LIU Bingfeng ,ZHANG Junwei ,LI Xue ,et al .Deformation response characteristics of displacement vector trend line of shield tunnel crossing special geology [J].Tunnel Construction ,2019 ,39(2): 240-245.
[7]JAVADI A A ,PM SNEE C .The effect of air flow on the shear strength of soil in compressed-air tunneling [J].Canadian Geotechnical Journal ,2001 ,38(6): 1187 -1200 .
[8]刘文洁 ,王同华 ,肖建勋 .各向异性地基中盾构隧道开挖面稳定性分析 [J].重庆交通大学学报 (自然科学版 ),2018 ,37(7): 14-19.LIU Wenjie ,WANG Tonghua ,XIAO Jianxun .Analysis of shield tunnel excavation surface stability in anisotropic foundations [J].Journal of Chongqing Jiaotong University (Natural Science ),2018 ,37(7): 14-19.
[9]ZINGG S ,ANAGNOSTOU G .An investigation into efficient drainage layouts for the stabilization of tunnel faces in homogeneous ground [J].Tunnelling and Underground Space Technology ,2016 ,58: 49-73.
[10]DING W T ,LIU K Q ,SHI P H ,et al .Face stability analysis of shallow circular tunnels driven by a pressurized shield in purely cohesive soils under undrained conditions [J].Computers and Geotechnics ,2019 ,107: 110-127.
[11]WENG X L ,SUN Y F ,YAN B H ,et al .Centrifuge testing and numerical modeling of tunnel face stability considering longitudinal slope angle and steady state seepage in soft clay [J].Tunnelling and Underground Space Technology ,2020 ,101: 103406 .
[12]ZOU J F ,QIAN Z H ,XIANG X H ,et al.Face stability of a tunnel excavated in saturated nonhomogeneous soils [J].Tunnelling and Underground Space Technology ,2019 ,83:1-17.
[13]傅金阳 ,谢佳伟 ,房雅楠 ,等.EPB盾构开挖面稳定性的PFC-FLAC 耦合分析 [J].华中科技大学学报 (自然科学版),2019 ,47(5): 116-121.FU Jinyang ,XIE Jiawei ,FANG Yanan ,et al .PFC-FLAC coupling analysis of face stability for EPB shield tunneling[J].Journal of Huazhong University of Science and Technology (Natural Science Edition ),2019 ,47(5): 116-121.
[14]CHENG X S ,ZHANG S L ,ZHOU X H ,et al .Parameter analysis of excavation face stability of shield tunnel under high water pressure seepage [J].Physics and Chemistry of the Earth ,2022 ,128: 103218 .
[15]JANSSEN H A .Versuche uber getreidedruck in silozellen[J].Z.ver.deut.Ing.,1895 ,39(35):1045 -1049 .
[16]汲红旗 ,宋中华 ,刘维正 ,等.泥质砂岩地层盾构掘进施工扰动效应与地表纵向变形预测方法 [J].中外公路 ,2022 ,42(1): 28-33.JI Hongqi ,SONG Zhonghua ,LIU Weizheng ,et al .Disturbance effect of shield tunneling in argillaceous sandstone stratum and prediction method of surface longitudinal deformation [J].Journal of China & Foreign Highway ,2022 ,42(1): 28-33.[17]CHAMBON P ,CORTÉ J F .Shallow tunnels in cohesionless soil :Stability of tunnel face [J].Journal of Geotechnical Engineering ,1994 ,120(7): 1148 -1165 .
[18]李少庭 .考虑纵坡的隧道掌子面稳定性上限有限元分析[J].中外公路 ,2019 ,39(5):188-193.LI Shaoting .Finite element analsis for stability limit of tunnel face considering longitudinal slope [J].Journal of China and Foreign Highway ,2019 ,39(5):188-193.
[19]李龙喜 ,蒋建荣 ,王树英 ,等.考虑循环进尺的隧道掌子面稳定性上限分析 [J].中外公路 ,2020 ,40(6): 223-227.LI Longxi ,JIANG Jianrong ,WANG Shuying ,et al .Upper bound analysis of tunnel heading stability considering cyclic footage [J].Journal of China & Foreign Highway ,2020 ,40(6): 223-227.
[20]付亚雄 ,贺雷 ,马险峰 ,等.软黏土地层盾构隧道开挖面稳定性离心试验研究 [J].地下空间与工程学报 ,2019 ,15(2): 387-393.FU Yaxiong ,HE Lei ,MA Xianfeng ,et al .Centrifuge model tests on face stability of shield tunneling in soft clay [J].Chinese Journal of Underground Space and Engineering ,2019 ,15(2): 387-393.
[21]秦建设 .盾构施工开挖面变形与破坏机理研究 [D].南京: 河海大学 ,2005 .QIN Jianshe .Study on deformation and failure mechanism of excavation face in shield construction [D].Nanjing : Hohai University ,2005 .
[22]肖鹏飞 ,冯光福 ,贾少东 ,等.近距离下穿车站富水圆砾地层盾构隧道开挖面稳定性研究 [J].隧道与地下工程灾害防治 ,2021 ,3(1): 75-81,91.XIAO Pengfei ,FENG Guangfu ,JIA Shaodong ,et al .Research on stability of excavation face of shield tunnel undercrossing station in water-rich gravel stratum [J].Hazard Control in Tunnelling and Underground Engineering ,2021 ,3(1): 75-81,91.
[23]肖超 ,谭立新 ,陈仁朋 ,等.考虑渣土特征的盾构施工力学动态耦合仿真研究 [J].岩土工程学报 ,2019 ,41(6):1108 -1115 .XIAO Chao ,TAN Lixin ,CHEN Renpeng ,et al .Dynamic coupling simulation of shield construction mechanics considering characteristics of soils [J].Chinese Journal of Geotechnical Engineering ,2019 ,41(6): 1108 -1115 .
[24]亢晨钢 .盾构机密封舱压力分布数值模拟 [D].大连 : 大连理工大学 ,2010 .KANG Chengang .Numerical simulation of pressure distribution in sealed cabin of shield machine [D].Dalian : Dalian University of Technology ,2010 .