Research on Grout Consolidation Deformation Characteristics  of Backfill Grouting of Shield Tunnel

Abstract

Abstract: Abstract： In order to investigate consolidation deformation characteristics of grout in shield tail void, the changing regulars were tested under different consolidation pressures, different grout material mix ratios, surrounding soil type, and groundwater pressures utilizing the selfmade consolidation deformation device. With consolidation pressure increasing, consolidation rate is accelerated, and ultimate deformation is bigger accordingly. Ultimate strain of consolidation varies between 4% and 12%. Consolidation deformation rate in sandy soil is faster than that in clay soil. Grout consolidation deformation can be stabilized within about 1 hour in sandy soil, which needs 5~6 hours in clay soil. With the water pressure increases, grout drainage rate slows, the final consolidation deformation reduces accordingly. Groundwater pressure hinders grout drainage, reduces the rate of consolidation deformation.

Key words: shield tunnel, backfill grouting, consolidation, deformation

CLC Number:

U451

YUAN Xiao-Hui, HAN Yue-Wang, ZHONG Xiao-Chun. Research on Grout Consolidation Deformation Characteristics of Backfill Grouting of Shield Tunnel[J]. Journal of Shanghai Jiaotong University, 2011, 45(04): 446-450.

References

［1］朱伟, 陈仁俊. 盾构隧道施工技术现状及展望: 盾构隧道基本原理及在我国的使用情况［J］. 岩土工程界, 2001, 4(11): 1921.

ZHU Wei, CHEN Renjun. Present state and perspectives of shield construction techniques: fundamental principles and uses of shield tunnel in China［J］. Geotechnical Engineering World, 2001, 4(11): 1921.

［2］刘招伟, 王梦恕, 董新平. 地铁隧道盾构法施工引起的地表沉降分析［J］. 岩石力学与工程学报, 2003, 22(8): 12971301.

LIU Zhaowei, WANG Mengshu, DONG Xinping. Analysis of ground surface subsidence of metro tunnel induced by shield construction［J］. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(8): 12971301.

［3］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 on deformation of soil mass during shield tunneling［J］. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(5): 755760.

［4］张云, 殷宗泽, 徐永福. 盾构法隧道引起的地表变形分析［J］. 岩石力学与工程学报, 2002, 21(3): 388392.

ZHANG Yun, YING Zongze, XU Yongfu. Analysis on threedimensional ground surface deformations due to shield tunnel［J］. Chinese Journal of Rock Mechanics and Engineering, 2002, 21(3): 388392.

［5］姜忻良, 崔奕, 李园,等. 天津地铁盾构施工地层变形实测及动态模拟［J］. 岩土力学, 2005, 26(10): 16121616.

JIANG Xinliang, CUI Yi, LI Yuan, et al. Measurement and simulation of ground settlements of Tianjin subway shield tunnel construction［J］. Rock and Soil Mechanics, 2005, 26(10): 16121616.

［6］Bezuijen A, Talmon A M, Kaalberg F J, et al. Field measurements of grout pressures during tunnelling of the Sophia Rail Tunnel［J］. Soils and Foundations, 2004, 44(1): 3948.

［7］Rowe R K，Lo K Y. A method of estimating ground settlement above tunnels constructed in soft ground［J］. Canadian Geotechnical Journal, 1983, 20(1): 1122.

［8］Loganathan N, Poulos H G. Analytical prediction for tunnelinginduced ground movements in clays［J］. Journal of Geotechnical and Geoenvironmental Engineering, 1998, 124(9): 846856.

［9］Kasper T, Meschke G. On the influence of face pressure, grouting pressure and TBM design in soft ground tunnelling［J］. Tunnelling and Underground Space Technology, 2006, 21(2): 160171.

［10］Kasper T, Meschke G. A numerical study of the effect of soil and grout material properties and cover depth in shield tunnelling［J］. Computers and Geotechnics, 2006, 33(5): 234247.

［11］沈建奇, 金先龙, 王吉云. 基于并行计算的盾构机过大堤三维数值模拟［J］. 上海交通大学学报, 2008, 42(8): 12961300.

SHEN Jianqi, JIN Xianlong, WANG Jiyun. Three dimensional numerical simulation of shield tunneling through flood levee based on parallel computing［J］. Journal of Shanghai Jiaotong University, 2008, 42(8): 12961300.

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Research on Grout Consolidation Deformation Characteristics of Backfill Grouting of Shield Tunnel

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