Study on Ground Settlement Caused by Shield Tunneling Long Distance Across Multitracks

Abstract

Abstract: Based on the bidsection of Binhai mass transit from Tianjin station to Qijing road station, 3DFEM was put forward to simulate shield tunneling long distance under multitracks of railway. According to the simulation results, settlement of ground surface along and perpendicular to the shield tunnel were analyzed. The disturbance area of ground and the settlement ratio dedicated by first tunnel and second tunnel were studied. The ground settlements caused by tunneling in different conditions were simulated and studied. The simulation results which fit well with monitoring data show that the maximum settlement of ground is between 18 mm and 20 mm. The influence of grouting amount is more significant than that of grouting pressure and soil pressure.

Key words: shield tunneling, railway track, ground settlement, tunneling parameters, numerical modeling

CLC Number:

U239.5

XIAO Li, ZHANG Qing-He. Study on Ground Settlement Caused by Shield Tunneling Long Distance Across Multitracks[J]. Journal of Shanghai Jiaotong University, 2011, 45(05): 672-676.

References

［1］曹剑锋，韦凯. 软土地区盾构下穿铁路地表变形规律研究［J］. 甘肃科技，2008，24(4)：111113.

CAO Jianfeng，WEI Kai. Study on soft ground settlement resulting from shield tunneling across railway［J］. Gansu Science and Technology，2008，24(4)：111113.

［2］杨天亮，李新，董金奎，等. 地铁盾构铁路下推进引起的地面沉降分析［J］. 矿山测量，2009(1)：1214.

YANG Tianliang，LI Xin，DONG Jinkui，et al. Analysis on ground settlement resulting from shield tunneling across railway ［J］. Mine Surveying，2009(1)：1214.

［3］吕培林，周顺华. 软土地区盾构隧道下穿铁路干线引起的线路沉降规律分析［J］. 中国铁道科学，2007，28(2)：1216.

L Peilin， ZHOU Shunhua. Analysis on upper rail settlement in soft ground resulting from shield tunnelling across main railway line ［J］. China Railway Science，2007，28(2)：1216.

［4］佘才高. 地铁盾构隧道下穿铁路的安全措施［J］. 城市轨道交通研究，2009(4)：3336.

SHE Caigao. Safety measures on shield tunneling across railway ［J］. Urban Mass Transit，2009(4)：3336.

［5］田海波，宋天田. 轨道交通9号线下穿铁路工程风险及对策研究［J］. 地下空间与工程学报，2007，3(1)：147150.

TIAN Haibo, SONG Tiantian. Research of risks and counter measures on project of metro 9 beneath the railway ［J］. Chinese Journal of Underground Space and Engineering，2007，3(1)：147150.

［6］周文波. 盾构法隧道施工技术及应用［M］. 北京：中国建筑工业出版社，2004.

［7］璩继立，葛修润. 软土地区盾构隧道施工沉降槽的特征分析［J］. 工业建筑，2005，35(1)：4246.

QU Jili，GE Xiurun. Analysis of characteristics of settlement trough induced by shield construction in soft soil area［J］. Industrial Construction，2005，35(1)：4246.

［8］魏纲. 盾构施工中土体损失引起的地面沉降预测［J］. 岩土力学，2007，28(11)：23752379.

WEI Gang. Prediction of surface settlement induced by ground loss during shield tunneling construction［J］. Rock and Soil Mechanics，2007，28(11)：23752379.

［9］侯学渊，钱达仁，杨林德. 软土工程施工新技术［M］. 合肥：安徽科学技术出版社，1999.

［10］孙玉永，周顺华，宫全美. 软土地区盾构掘进引起的深层位移场分布规律［J］. 岩石力学与工程学报，2009，28(3)：500506.

SUN Yuyong，ZHOU Shunhua，GONG Quanmei. Distribution of deep displacement field during shield tunneling in softsoil areas［J］. Chinese Journal of Rock Mechanics and Engineering，2009，28(3)：500506.

［11］Lee K M，Rove R K. Finite element modeling of the three dimensional ground deformations due to tunneling in soft cohesive soil：Part I. Method of analysis ［J］. Computers and Geotechnics，1990，2(2)：87110.

［12］Lee K M，Rove R K. Finite element modeling of the three dimensional ground deformations due to tunneling in soft cohesive soil: Part II. Results［J］. Computers and Geotechnics，1990，2(2)：111138.

［13］Lee K M，Rove R K. Analysis of threedimensional ground movements: The thunder bay tunnel［J］. Canadian Geotechnical Journal，1991，28(1)：2541.

［14］张海波，殷宗泽，朱俊高. 地铁隧道盾构法施工过程中地层变位的三维有限元模拟［J］. 岩石力学与工程学报，2005，24(5)：755760.

ZHANG Haibo，YIN Zongze，ZHU Jungao. 3D finite element simulation of deformation of soil mass during shield tunneling［J］. Chinese Journal of Rock Mechanics and Engineering，2005，24(5)：755760.

［15］龚伦，郑余朝，仇文革. 列车动载引起下穿隧道振动三维数值分析［J］. 现代隧道技术，2008，45(4)：2328.

GONG Lun，ZHENG Yuchao，QIU Wenge. 3D dynamic FE analysis on the behavior of undercrossing tunnels caused by overhead passing trains ［J］. Modern Tunneling Technology，2008，45(4)：2328.

［16］TB10001—2005，铁路路基设计规范［S］.

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