Abstract
With the rapid development of deep underground engineering, grouting technology is widely used to enhance the stability of the surrounding rocks in tunnels, where ingress water, large site disturbance, and deformation are the main challenges. In this paper, a three-dimensional (3D) numerical grouting system, which is based on TOUGH2 and the finite element method (FEM), is developed to study the diffusion and consolidation of grout slurry during the cyclic grouting process. It is observed that the grouting technology can reduce the rock permeability and porosity, increase the degree of compactness, and improve the strength of the rock mass. This numerical grouting system is validated by three numerical tests. The grout diffusion and consolidation process are investigated by simulating grouting experiments. Finally, a detailed mining tunnel grouting schedule is designed, and the corresponding numerical model is established to mimic stopping the water ingress. The results show that the grouting system presented in this study is potentially useful to improve the grout characteristics and tunnel designs, as well as construction.
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References
Bouchelaghem F, Vulliet L, Leroy D, Laloui L, Descoeudres F (2001) Real scale miscible grout injection experiment and performance of advection-dispersion-filtration model. Int J Numer Anal Met 25:1149–1173
Brantberger M, Stille H, Eriksson M (2000) Controlling grout spreading in tunnel grouting - analyses and developments of the GIN-method. Tunn Undergr Sp Tech incorporating Trenchless Technology Research 15:343–352
Finsterle S, Oldenburg CM, James AL, Pruess K, Moridis GJ (1996) Mathematical modeling of permeation grouting and subsurface barrier performance. OSTI Technical Reports
Hässler L, Håkansson U, Stille H (1992) Computer-simulated flow of grouts in jointed rock. Tunn Undergr Sp Tech 7:441–446
Kasper T, Meschke G (2006) A numerical study of the effect of soil and grout material properties and cover depth in shield tunnelling. Comput Geotech 33:234–247
Kim JS, Lee IM, Jang JH, Choi H (2010) Groutability of cement-based grout with consideration of viscosity and filtration phenomenon. Int J Numer Anal Met 33:1771–1797
Lee JS, Bang CS, Mok YJ, Joh SH (2000) Numerical and experimental analysis of penetration grouting in jointed rock masses. Int J Rock Mech Min 37:1027–1037
Lee JS, Bang CS, Yeom JH (1997) A study on the elasto-plastic analysis of grout-reinforced tunnel.Journal of. The Korean Society of Civil Engineers 74(3):531–531
Li SC, Zheng Z, Liu RT, Feng X, Sun ZZ, Zhang LZ (2015) Analysis of diffusion of grout in porous media considering infiltration effects. Chin J Rock Mech Eng 34(12):2401–2409 (in Chinese)
Liu QS, Huang X, Gong QM, Du LJ, Pan YC, Liu JP (2016) Application and development of hard rock TBM and its prospect in China. Tunn Undergr Sp Tech Incorporating Trenchless Technology Research 57:33–46
Liu QS, Sun L (2019) Simulation of coupled hydro-mechanical interactions during grouting process in fractured media based on the combined finite-discrete element method. Tunn Undergr Sp Tech 84:472–486
Mao DW, Lu M, Zhao ZY, Ng M (2016) Effects of water related factors on pre-grouting in hard rock tunnelling. Procedia Engineering 165:300–307
MohajeraniS BA, Bagherpour R, Hashemolhosseini H (2015) Grout penetration in fractured rock mass using a new developed explicit algorithm. Int J Rock Mech Min 80:412–417
Moridis GJ, Wu YS, Pruess K(1999) EOS9NT: a TOUGH2 module for the simulation of water flow and solute/colloid transport in the subsurface. OSTI Technical Reports
Onoda GY, Liniger EG (1990) Random loose packings of uniform spheres and the dilatancy onset. Phys Rev Lett 64:2727
Persoff P, Moridis GJ, Apps JA, Pruess K (1998) Evaluation tests for colloidal silica for use in grouting applications. Geotech Test J 21(3):264–269
Pruess K, Oldenburg CM, Moridis GJ (1999) TOUGH2 user's guide version 2. OSTI Technical Reports
Qian ZW, Cao LW, Jiang ZQ, Sun Q (2014) Research on multiple chemical grouting experiment of porous sandstone. Rock Soil Mech 08:2226–2230 (in Chinese)
Saeidi O, Stille H, Torabi SR (2013) Numerical and analytical analyses of the effects of different joint and grout properties on the rock mass groutability. Tunn Undergr Sp Tech incorporating Trenchless Technology Research 38:11–25
Todd BJ (1990) Numerical modeling of in situ gelation in porous media. University of Kansas, Ph.D. dissertation
Wallevik JE (2006) Relationship between the Bingham parameters and slump. Cement Concrete Res 36:1214–1221
Yang MJ, Yue ZQ, Lee PK, Su B, Tham LG (2002) Prediction of grout penetration in fractured rocks by numerical simulation. Can Geotech 39:1384–1394
Yun SK, Whittle AJ (2006) Filtration in a porous granular medium: 2. Application of bubble model to 1-D column experiments. Transport Porous Med 65:309–335
Zhang WJ, Li SC, Wei JC, Zhang QS, Zhang X (2016) Development of a 3D grouting model test system and its application. Rock Soil Mech 37:902–911 (in Chinese)
Zhao WH, Wang JB, Hu DL, Zhang YF (2011) Grouting for water blocking in auxiliary haulage way of 1122 working face in Hongliu coal mine. China Coal 37(3):105–107 (in Chinese)
Funding
This work has been supported by National Basic Research Program of China (Grant No. 2014CB046904) and National Natural Science Foundation of China (Grant No. 41602296).
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Liu, Q., Xu, X. & Tang, X. A numerical study of the influence of cyclic grouting and consolidation using TOUGH2. Bull Eng Geol Environ 80, 145–155 (2021). https://doi.org/10.1007/s10064-020-01950-4
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DOI: https://doi.org/10.1007/s10064-020-01950-4