On using the thin fluid-layer approach at ultrasonic frequencies for characterising grout propagation in an artificial fracture

Pusch, 2012, Can sealing of rock hosting a repository for highly radioactive waste be relied on?, Nat Sci, 4, 895 H. Stille, Rock grouting - theories and applications. BeFo – Rock Engineering Research Foundation, Stockholm; 2015. Hernqvist, 2009, Analyses of the grouting results for a section of the APSE tunnel at Äspö Hard Rock Laboratory, Int J Rock Mech Min Sci, 46, 439, 10.1016/j.ijrmms.2008.02.003 Stille, 2012, Application of new theories and technology for grouting of dams and foundations on rock, Geotech Geol Eng, 30, 603, 10.1007/s10706-012-9512-7 Mohammed, 2015, Study of cement-grout penetration into fractures under static and oscillatory conditions, Tunn. Undergr. Space Technol, 45, 10, 10.1016/j.tust.2014.08.003 Pusch, 2013, A talc-based cement-poor concrete for sealing boreholes in rock, Sci Res Eng, 5, 251 Gustafson, 2005, Stop criteria for cement grouting, Felsbau, 25, 62 Eriksson, 2004, Variations in the rheology and penetrability of cement-based grouts—an experimental study, Cem Concr Res, 34, 1111, 10.1016/j.cemconres.2003.11.023 Gustafson, 2013, Steering parameters for rock grouting, J Appl Math, 2013, 10.1155/2013/269594 Rafi, 2015, Basic mechanism of elastic jacking and impact of fracture aperture change on grout spread, transmissivity and penetrability, Tunn Undergr Space Technol, 49, 174, 10.1016/j.tust.2015.04.002 Fransson Å. Grouting Design based on Characterization of the Fractured Rock. Vol. R-08-127; 2008 Eriksson, 2002, Grouting field experiment at the Äspö Hard Rock Laboratory, Tunn Undergr Space Technol, 17, 287, 10.1016/S0886-7798(02)00024-X Saleh, 1997, Three seismic nondestructive methods used to monitor concrete slab injection tests, Pure Appl Geophys, 150, 605, 10.1007/s000240050095 Draganović, 2011, Filtration and penetrability of cement-based grout: Study performed with a short slot, Tunn Undergr Space Technol, 26, 548, 10.1016/j.tust.2011.02.007 Draganović, 2014, Filtration of cement-based grouts measured using a long slot, Tunn Undergr Space Technol, 43, 101, 10.1016/j.tust.2014.04.010 Subramaniam, 2010, An investigation of microstructure evolution in cement paste through setting using ultrasonic and rheological measurements, Cem Concr Res, 40, 33, 10.1016/j.cemconres.2009.09.018 Trtnik, 2008, Possibilities of using the ultrasonic wave transmission method to estimate initial setting time of cement paste, Cem Concr Res, 38, 1336, 10.1016/j.cemconres.2008.08.003 Trtnik, 2009, Comparison between two ultrasonic methods in their ability to monitor the setting process of cement pastes, Cem Concr Res, 39, 876, 10.1016/j.cemconres.2009.07.002 Rahman, 2015, In-line rheological measurements of cement grouts: effects of water/cement ratio and hydration, Tunn Undergr Space Technol, 45, 34, 10.1016/j.tust.2014.09.003 Wiklund, 2012, In-line rheometry of micro cement based grouts – a promising new industrial application of the ultrasound based UVP+PD method, Appl. Rheol., 22, 1 Groenenboom, 1998, Monitoring the width of hydraulic fractures with acoustic waves, Geophysics, 63, 139, 10.1190/1.1444306 Oelke, 2013, Seismic reflectivity of hydraulic fractures approximated by thin fluid layers, Geophysics, 78, T79, 10.1190/geo2012-0269.1 Fehler, 1982, Interaction of seismic waves with a viscous liquid layer, Bull Seismol Soc Am, 72, 55, 10.1785/BSSA0720010055 Zou, 2010, Grout quality and its impact on guided ultrasonic waves in grouted rock bolts, J Appl Geophys, 72, 102, 10.1016/j.jappgeo.2010.07.006 Sharma, 2014, Ultrasonic guided waves for monitoring the setting process of concretes with varying workabilities, Constr Build Mater, 72, 358, 10.1016/j.conbuildmat.2014.09.018 Madenga, 2006, Effects of curing time and frequency on ultrasonic wave velocity in grouted rock bolts, J Appl Geophys, 59, 79, 10.1016/j.jappgeo.2005.08.001 Shiotani, 2009, Elastic wave validation of large concrete structures repaired by means of cement grouting, Constr Build Mater, 23, 2647, 10.1016/j.conbuildmat.2009.01.005 Place, 2014, Wet fault or dry fault? A laboratory approach to remotely monitor the hydro-mechanical state of a discontinuity using controlled-source seismics, Pure Appl Geophys, 171, 2887, 10.1007/s00024-014-0805-z Malehmir, 2013, Experimental estimation of velocities and anisotropy of a series of Swedish crystalline rocks and ores, Geophys Prospect, 61, 153, 10.1111/j.1365-2478.2012.01063.x Stein, 2003 Quan, 1997, Seismic attenuation tomography using the frequency shift method, Geophysics, 62, 895, 10.1190/1.1444197 Widess, 1973, How thin is a thin bed?, Geophysics, 38, 1176, 10.1190/1.1440403 Zeng, 2009, How thin is a thin bed? An alternative perspective, Lead Edge, 28, 1192, 10.1190/1.3249773 Schoenberg, 1980, Elastic wave behavior across linear slip interfaces, J Acoust Soc Am, 68, 1516, 10.1121/1.385077 Majer, 1986, Studying hydrofractures by high frequency seismic monitoring, Int J Rock Mech Min Sci Geomech Abstr, 23, 185, 10.1016/0148-9062(86)90965-4 Majer, 1989, The application of high frequency seismic monitoring methods for the mapping of grout injections, Int J Rock Mech Sci Geomech Abstr, 26, 249, 10.1016/0148-9062(89)91974-8 Worthington, 2007, The scaling of fracture compliance, Geol Soc Lond, 270, 73, 10.1144/GSL.SP.2007.270.01.05