Geomechanics and Engineering

  • 제21권4호
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  • Pages.357-369
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  • 2020
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Diffusion-hydraulic properties of grouting geological rough fractures with power-law slurry

  • Mu, Wenqiang (Key Laboratory of Ministry Education on Safe Mining of Deep Metal Mines, Northeastern University) ;
  • Li, Lianchong (Key Laboratory of Ministry Education on Safe Mining of Deep Metal Mines, Northeastern University) ;
  • Liu, Xige (Key Laboratory of Ministry Education on Safe Mining of Deep Metal Mines, Northeastern University) ;
  • Zhang, Liaoyuan (Shengli Oilfield Branch Company, SINOPEC) ;
  • Zhang, Zilin (Shengli Oilfield Branch Company, SINOPEC) ;
  • Huang, Bo (Shengli Oilfield Branch Company, SINOPEC) ;
  • Chen, Yong (Shengli Oilfield Branch Company, SINOPEC)
  • 투고 : 2019.07.22
  • 심사 : 2020.04.03
  • 발행 : 2020.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

Different from the conventional planar fracture and simplified Newton model, for power-law slurries with a lower water-cement ratio commonly used in grouting engineering, flow model in geological rough fractures is built based on ten standard profiles from Barton (1977) in this study. The numerical algorithm is validated by experimental results. The flow mechanism, grout superiority, and water plugging of pseudo plastic slurry are revealed. The representations of hydraulic grouting properties for JRCs are obtained. The results show that effective plugging is based on the mechanical mechanisms of the fluctuant structural surface and higher viscosity at the middle of the fissure. The formulas of grouting parameters are always variable with the roughness and shear movement, which play a key role in grouting. The roughness can only be neglected after reaching a threshold. Grouting pressure increases with increasing roughness and has variable responses for different apertures within standard profiles. The whole process can be divided into three stationary zones and three transition zones, and there is a mutation region (10 < JRCs < 14) in smaller geological fractures. The fitting equations of different JRCs are obtained of power-law models satisfying the condition of -2 < coefficient < 0. The effects of small apertures and moderate to larger roughness (JRCs > 10.8) on the permeability of surfaces cannot be underestimated. The determination of grouting parameters depends on the slurry groutability in terms of its weakest link with discontinuous streamlines. For grouting water plugging, the water-cement ratio, grouting pressure and grouting additives should be determined by combining the flow conditions and the apparent widths of the main fracture and rough surface. This study provides a calculation method of grouting parameters for variable cement-based slurries. And the findings can help for better understanding of fluid flow and diffusion in geological fractures.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Central Universities, Postdoctoral Science Foundation of China

This work was conducted with support from the National Natural Science Foundation of China (grant nos.51879041, 51761135102 and U1710253), Fundamental Research Funds for the Central Universities (No. N180105029), and Postdoctoral Science Foundation of China (grant no. 2018M641706). The authors express their sincere thanks to the reviewers for their helpful comments and suggestions for improving this paper.

참고문헌

  1. Amadei, B. and Savage, W.Z. (2001), "An analytical solution for transient flow of Bingham viscoplastic materials in rock fractures", Int. J. Rock Mech. Min. Sci., 38(2), 285-296. https://doi.org/10.1016/S1365-1609(00)00080-0.
  2. Bae, D.S., Kim, K.S., Koh, Y.K. and Kim, J.Y. (2011), "Characterization of joint roughness in granite by applying the scan circle technique to images from a borehole televiewer", Rock Mech. Rock Eng., 44(4), 497-504. https://doi.org/10.1007/s00603-011-0134-9.
  3. Barton, N. and Choubey, V. (1977), "The shear strength of rock joints in theory and practice", Rock Mech., 10(1), 1-54. https://doi.org/10.1007/BF01261801.
  4. Butron, C., Gustafson, G., Fransson, A. and Funehag, J. (2010), "Drip sealing of tunnels in hard rock: A new concept for the design and evaluation of permeation grouting", Tunn. Undergr. Sp. Technol., 25(2), 114-121. https://doi.org/10.1016/j.tust.2009.09.008.
  5. Chang, X., Li, Z.H., Wang, S.Y. and Wang, S.R. (2018), "Pullout performances of grouted rockbolt systems with bond defects", Rock Mech. Rock Eng., 51(3), 861-871. https://doi.org/10.1007/s00603-017-1373-1.
  6. Christopher, M. (1994), Rheology Principles, Measurements, and Applications, WILEY-VCH, New York, U.S.A.
  7. Cui, J.J. and Cui, X.Q. (2011), Grouting Technology for Tunnel and Underground Engineering, China Construction Industry Publishing House, Beijing, China.
  8. Dejam, M. (2018), "Dispersion in non-Newtonian fluid flows in a conduit with porous walls", Chem. Eng. Sci., 189, 296-310. https://doi.org/10.1016/j.conbuildmat.2017.01.031.
  9. Dejam, M. (2019), "Advective-diffusive-reactive solute transport due to non-Newtonian fluid flows in a fracture surrounded by a tight porous medium", Int. J. Heat Mass Transfer, 128, 1307-1321. https://doi.org/10.1016/j.ijheatmasstransfer.2018.09.061.
  10. Dejam, M., Hassanzadeh, H. and Chen, Z.X. (2016), "Shear dispersion in a capillary tube with a porous wall", J. Contam. Hydrol., 185, 87-104. http://doi.org/10.1016/j.jconhyd.2016.01.007.
  11. Dejam, M., Hassanzadeh, H. and Chen, Z.X. (2018), "Shear dispersion in a rough-walled fracture", SPE J., 23(5), 1669-1688. http://doi.org/10.2118/189994-PA.
  12. El Tani, M. (2012), "Grouting rock fractures with cement grout", Rock Mech. Rock Eng., 45(4), 547-561. https://doi.org/10.1007/s00603-012-0235-0.
  13. Eriksson, M., Friedrich, M. and Vorschulze, C. (2004), "Variations in the rheology and penetrability of cement-based grouts-an experimental study", Cement Concrete Res., 34(7), 1111-1119. https://doi.org/10.1016/j.cemconres.2003.11.023.
  14. Funehag, J. and Gustafson, G. (2008), "Design of grouting with silica sol in hard rock-New methods for calculation of penetration length, Part I", Tunn. Undergr. Sp. Technol., 23(1), 1-8. https://doi.org/10.1016/j.tust.2006.12.005.
  15. Gothall, R. and Stille, H. (2009), "Fracture dilation during grouting", Tunn. Undergr. Sp. Technol., 24(2), 126-135. https://doi.org/10.1016/j.tust.2008.05.004.
  16. He, K.Q., Wang, R.L. and Jiang, W.F. (2012), "Groundwater inrush channel detection and curtain grouting of the Gaoyang iron ore mine, China", Mine Water Environ., 31(4), 297-306. https://doi.org/10.1007/s10230-012-0207-3.
  17. Huang, Y.B., Zhang, Y.J., Yu, Z.W., Ma, Y.Q. and Zhang, C. (2019), "Experimental investigation of seepage and heat transfer in rough fractures for enhanced geothermal systems", Renew. Energy, 135, 846-855. https://doi.org/10.1016/j.renene.2018.12.063.
  18. Javadi, M., Sharifzadeh, M. and Shahriar, K. (2010), "A new geometrical model for non-linear fluid flow through rough fractures", J. Hydrol., 389(1-2), 18-30. https://doi.org/10.1016/j.jhydrol.2010.05.010.
  19. Koyama, T., Neretnieks, I. and Jing, L. (2008), "A numerical study on differences in using Navier-Stokes and Reynolds equations for modeling the fluid flow and particle transport in single rock fractures with shear", Int. J. Rock Mech. Min. Sci., 45(7), 1082-1101. https://doi.org/10.1016/j.ijrmms.2007.11.006.
  20. Liu, J.J., Wang, Y. and Song, R. (2017), "A pore scale flow simulation of reconstructed model based on the micro seepage experiment", Geofluids, UNSP 7459346. https://doi.org/10.1155/2017/7459346.
  21. Liu, Q.S., Lei, G.F., Peng, X.X., Lu, C.B. and Wei, L. (2018), "Rheological characteristics of cement grout and its effect on mechanical properties of a rock fracture", Rock Mech. Rock Eng., 51(2), 613-625. https://doi.org/10.1007/s00603-017-1340-x.
  22. Liu, X.G., Zhu, W.C., Yu, Q.L., Chen, S.J. and Guan, K. (2019), "Estimating the joint roughness coefficient of rock joints from translational overlapping statistical parameters", Rock Mech. Rock Eng., 52(3), 753-769. https://doi.org/10.1007/s00603-018-1643-6.
  23. Liu, X.G., Zhu, W.C., Yu, Q.L., Chen, S.J. and Li, R.F. (2017), "Estimation of the joint roughness coefficient of rock joints by consideration of two-order asperity and its application in double-joint shear tests", Eng. Geol., 220, 243-255. https://doi.org/10.1016/j.enggeo. 2017.02.012.
  24. Mu, W.Q., Li, L.L., Yang, T.H., Yao, L.J. and Wang, S.X. (2020), "Numerical calculation and multi-factor analysis of slurry diffusion in inclined geological fracture", Hydrogeol. J., 1-18. https://doi.org/10.1007/s10040-019-02103-y.
  25. Mu, W.Q., Li, L.L., Yang, T.H., Yu, G.F. and Han, Y.C. (2019), "Numerical investigation on a grouting mechanism with slurryrock coupling and shear displacement in a single rough fracture", Bull. Eng. Geol. Environ., 78(8), 6159-6177. https://doi.org/10.1007/s10064-019-01535-w.
  26. Niya, S.M.R. and Selvadurai, A.P.S. (2017), "The estimation of permeability of a porous medium with a generalized pore structure by geometry identification", Phys. Fluids, 29(3), 037101. https://doi.org/10.1063/1.4977444.
  27. Niya, S.M.R. and Selvadurai, A.P.S. (2019), "Correlation of joint roughness coefficient and permeability of a fracture", Int. J. Rock Mech. Min. Sci., 113, 150-162. https://doi.org/10.1016/j.ijrmms.2018.12.008.
  28. Omosebi, A.O. and Igbokoyi, A.O. (2016), "Boundary effect on pressure behavior of power-law non-Newtonian fluids in homogeneous reservoirs", J. Petrol. Sci. Eng., 146, 838-855. https://doi.org/10.1016/j.petrol.2016.07.036.
  29. Ozsun, O., Yakhot, V. and Ekinci, K.L. (2013), "Non-invasive measurement of the pressure distribution in a deformable microchannel", J. Fluid Mech., 734, R1. https://doi.org/10.1017/jfm.2013.474.
  30. Qian, Z.W., Jiang, Z.Q., Guan, Y.Z. and Yue, N. (2018), "Mechanism and remediation of water and sand inrush induced in an inclined shaft by large-tonnage vehicles", Mine Water Environ., 37(4), 849-855. https://doi.org/10.1007/s10230-018-0531-3.
  31. Rafi, J.Y. and Stille, H. (2015), "Basic mechanism of elastic jacking and impact of fracture aperture change on grout spread, transmissivity and penetrability", Tunn. Undergr. Sp. Technol., 49, 174-187. https://doi.org/10.1016/j.tust.2015.04.002.
  32. Sharma, K.M., Roy, D.G., Singh, P.K., Sharma, L.K. and Singh, T.N. (2017), "Parametric study of factors affecting fluid flow through a fracture", Arab. J. Geosci., 10(16), 362. https://doi.org/10.1007/s12517-017-3142-6.
  33. Shi, L., Zhang, B., Wang, L., Wang, H.N. and Zhang, H.J. (2018), "Functional efficiency assessment of the water curtain system in an underground water-sealed oil storage cavern based on timeseries monitoring data", Eng. Geol., 239, 79-95. https://doi.org/10.1016/j.enggeo.2018.03.015.
  34. Stromsvik, H., Morud, J.C. and Grov, E. (2018), "Development of an algorithm to detect hydraulic jacking in high pressure rock mass grouting and introduction of the PF index", Tunn. Undergr. Sp. Technol., 81, 16-25. https://doi.org/10.1016/j.tust.2018.06.027.
  35. Sui, W.H., Liu, J.Y., Hu, W., Qi, J.F. and Zhan, K.Y. (2015), "Experimental investigation on sealing efficiency of chemical grouting in rock fracture with flowing water", Tunn. Undergr. Sp. Technol., 50, 239-249. https://doi.org/10.1016/j.tust.2015.07.012.
  36. Wanniarachchi, W.A.M., Ranjith, P.G., Perera, M.S.A., Rathnaweera, T.D., Zhang, C. and Zhang, D.C. (2018), "An integrated approach to simulate fracture permeability and flow characteristics using regenerated rock fracture from 3-D scanning: A numerical study", J. Nat. Gas Sci. Eng., 53, 249-262. https://doi.org/10.1016/j.jngse.2018.02.033.
  37. Xiao, F., Zhao, Z.Y. and Chen, H.M. (2017), "A simplified model for predicting grout flow in fracture channels", Tunn. Undergr. Sp. Technol., 70, 11-18. https://doi.org/10.1016/j.tust.2017.06.024.
  38. Xie, L.Z., Gao, C., Ren, L. and Li, C.B. (2015), "Numerical investigation of geometrical and hydraulic properties in a single rock fracture during shear displacement with the Navier-Stokes equations", Environ. Earth Sci., 73(11), 7061-7074. https://doi.org/10.1007/s12665-015-4256-3.
  39. Yin, D.W., Chen, S.J., Chen, B., Liu, X.Q. and Ma, H.F. (2018), "Strength and failure characteristics of the rock-coal combined body with single joint in coal", Geomech. Eng., 15(3), 1113-1124. https://doi.org/10.12989/gae.2018.15.5.1113.
  40. Zhang, Q.S., Zhang, L.Z., Liu, R.T., Li, S.C. and Zhang, Q.Q. (2017), "Grouting mechanism of quick setting slurry in rock fissure with consideration of viscosity variation with space", Tunn. Undergr. Sp. Technol., 70, 262-273. https://doi.org/10.1016/j.tust.2017.08.016.
  41. Zhang, W. (2013), "The grouting diffusion model of power-law fluid in single fracture", Appl. Mech. Mater., 477-478, 524-530. https://doi.org/10.4028/www.scientific.net/AMM.477-478.524.
  42. Zhao, Z.H. and Zhou, D. (2016), "Mechanical properties and failure modes of rock samples with grout-infilled flaws: A particle mechanics modeling", J. Nat. Gas Sci. Eng., 34, 702-715. https://doi.org/10.1016/j.jngse.2016.07.022.
  43. Zuo, J.P., Li, Y.L., Liu, C.H., Liu, H.Y., Wang, J.T., Li, H.T. and Liu, L (2019), "Meso-fracture mechanism and its fracture toughness analysis of Longmaxi shale including different angles by means of M-SENB tests", Eng. Fract. Mech., 215, 178-192. https://doi.org/10.1016 /j.engfracmech.2019.05.009. https://doi.org/10.1016/j.engfracmech.2019.05.009

피인용 문헌

  1. Grouting Mechanism in Water-Bearing Fractured Rock Based on Two-Phase Flow vol.2021, 2020, https://doi.org/10.1155/2021/5585288