Experimental study on the mechanisms of bentonite slurry penetration in front of a slurry TBM

Anagnostou, 1994, The face stability of slurry-shield-driven tunnels, Tunn. Undergr. Space Technol., 9, 165, 10.1016/0886-7798(94)90028-0 API, 2003 ASTM, 2006, D2487 Bezuijen, 2010 Bezuijen, 2006, Pore pressures in front of tunnel, measurements, calculations and consequences for stability of tunnel face, 35 Bezuijen, 2009, Parameters that influence the pressure filtration characteristics of bentonite grouts, Géotechnique, 59, 717, 10.1680/geot.7.00111 Bezuijen, 2016, Monitoring and analysing pressures around a TBM Bolton, 1997, Geotechnical properties of fresh cement grout pressure filtration and consolidation, Géotechnique, 47, 347, 10.1680/geot.1997.47.2.347 Broere, 2001 Huisman, M., 1998. Static plastering, Theory and experiments, BTL-report 34. WL|Delft Hydraulics J1384 (in Dutch). Krause, 1987 McKinley, 1999, A geotechnical description of fresh cement grout: filtration and consolidation behaviour, Magzine Concr. Res., 51, 295, 10.1680/macr.1999.51.5.295 Min, 2019, Experimental study on property change of slurry and filter cake of slurry shield under seawater intrusion, Tunn. Undergr. Space Technol., 88, 290, 10.1016/j.tust.2019.03.006 Min, 2013, Filter cake formation for slurry shield tunneling in highly permeable sand, Tunneling Undergr. Space Technol., 38, 423, 10.1016/j.tust.2013.07.024 Talmon, 2013, Invasion of pressurized clay suspensions into granular soil, J. Porous Media, 16, 351, 10.1615/JPorMedia.v16.i4.70 Thewes, 2016, Transient face support in slurry shield tunneling due to different time scales for excavation sequence of cutting tools and penetration time of support fluid Winterwerp, 2004 Xu, 2018, Pressure infiltration characteristics of bentonite slurry, Géotechnique Xu, 2018, Analytical methods in predicting excess pore water pressure in front of slurry shield in saturated sandy ground, Tunn. Undergr. Space Technol., 73, 203, 10.1016/j.tust.2017.12.011 Yin, 2016, A column system for modelling bentonite slurry infiltration in sands, J. Zhejiang Univ.-Sci. A (Appl. Phys. Eng.), 17, 818, 10.1631/jzus.A1500290 Zizka, 2018, Slurry shield tunneling: new methodology for simplified prediction of increased pore pressures resulting from slurry infiltration at the tunnel face under cyclic excavation processes, Int. J. Civil Eng., 15, 387ff