Computers and Concrete

  • 제20권3호
  • /
  • Pages.275-282
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  • 2017
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
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Evaluating analytical and statistical models in order to estimate effective grouting pressure

  • Amnieh, Hassan Bakhshandeh (School of Mining, College of Engineering, University of Tehran) ;
  • Masoudi, Majid (Department of Mining Engineering, Faculty of Engineering, University of Kashan) ;
  • Karbala, Mohammdamin (Mining Eng., Amirkabir Univ. of Tech (Tehran Polytechnic), Rahsazi & Omran Iran Cons. Co.)
  • 투고 : 2016.12.04
  • 심사 : 2017.04.24
  • 발행 : 2017.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

Grouting is an operation often carried out to consolidate and seal the rock mass in dam sites and tunnels. One of the important parameters in this operation is grouting pressure. In this paper, analytical models used to estimate pressure are investigated. To validate these models, grouting data obtained from Seymareh and Aghbolagh dams were used. Calculations showed that P-3 model from Groundy and P-25 model obtained from the results of grouting in Iran yield the most accurate predictions of the pressure and measurement errors compared to the real values in P-25 model in this dams are 12 and 14.33 Percent and in p-3 model are 12.25 and 16.66 respectively. Also, SPSS software was applied to define the optimum relation for pressure estimation. The results showed a high correlation between the pressure with the depth of the section, the amount of water take, rock quality degree and grout volume, so that the square of the multiple correlation coefficient among the parameters in this dams were 0.932 and 0.864, respectively. This indicates that regression results can be used to predict the amount of pressure. Eventually, the relationship between the parameters was obtained with the correlation coefficient equal to 0.916 based on the data from both dams generally and shows that there is a desirable correlation between the parameters. The outputs of the program led to the multiple linear regression equation of P=0.403 Depth+0.013 RQD+0.011 LU-0.109 V+0.31 that can be used in estimating the pressure.

키워드

참고문헌

  1. Bencardino, F. and Condello, A. (2014), "Experimental study and numerical investigation of behavior of RC beams strengthened with steel reinforced grout", Comput. Concrete, 14(6), 161-167.
  2. Cleary, M.P., Johnson, D.E. and Kogsboll, H.H., Owens, K.A., Perry, K.F., De Pater, C.J. and Mauro, T. (1993), "Field implementation of proppant slugs to avoid premature screen-out of hydraulic fractures with adequate proppant concentration. In low permeability reservoirs symposium", Soc. Petrol. Eng.,145-156.
  3. Creager, M. and Paris, P.C. (1997), "Elastic field equations for blunt cracks with reference to stress corrosion cracking", J. Fract. Mech., 3(4), 247-252.
  4. Darn-Horng, H., Vu To-Anh, P. and Chi-Chang, H. (2016), "An experimental investigation on dynamic properties of various grouted sands", Geomech. Eng., 10(1), 95-106. https://doi.org/10.12989/gae.2016.10.1.095
  5. Economides, M.J. (1990), "Implications of cementing on well performance", Develop. Petrol. Sci., 28, 1-10.
  6. 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
  7. Fett, T. (1999), "Estimated stress intensity factors for semielliptical cracks in front of narrow circular notches", Eng. Fract. Mech., 64(3), 357-362. https://doi.org/10.1016/S0013-7944(99)00077-6
  8. Gang, Z., Xiaoshuang, Z., You, D. and Huayang, L. (2016), "Experimental study on the performance of compensation grouting in structured soil", Geomech. Eng., 10(3), 140-152.
  9. Garagash, D.I. (2003), "Evolution of a plane-strain fracture driven by a power-law fluid. In electronic proc", Proceedings of the 16th ASCE Eng. Mech. Conf., July.
  10. Gulrajani, S.N., Nolte, K.G. and Romero, J. (1997), "Evaluation of the M-Site B-sand fracture experiments: The evolution of a pressure analysis methodology. In SPE annual technical conference and exhibition", Soc. Petrol. Eng., 120-130.
  11. Hai, Y., Zhu, J.G., Deng, J.Z., Hu, Z., Hai, L. and Teng, W. (2014), "Cementing failure of the casing-cement-rock interfaces during hydraulic fracturing", Comput. Concrete, 14(1), 54-62.
  12. Houlsby, A.C. (1990), "Construction and design of cement grouting: A guide to grouting in rock foundations", John Wil. Sons, 67(3), 177-189.
  13. Jafarian Arani, A. and Kolahchi, R. (2016), "Buckling analysis of embedded concrete columns armed with carbon nanotubes", Comput. Concrete, 17(5), 23-33.
  14. Johnson, E. and Cleary, M.P. (1991), "Implications of recent laboratory experimental results for hydraulic fractures. In low permeability reservoirs symposium", Soc. Petrol. Eng., 5(1), 81-92.
  15. Lhomme, T.P.Y. (2005), "Initiation of hydraulic fractures in natural sandstones", TU Delft, 4(4), 44-52.
  16. Mack, M.G. and Elbel, J.L. (1994), "A simulator for modeling acid fracturing treatments", In Proc.
  17. Mohammed, Y., Fattah, A. and Maher, M.J. (2015), "Improvement of bearing capacity of footing on soft clay grouted with lime-silica fume mix", Geomech. Eng., 8(1), 156-164.
  18. Muhsiung, C., Tze-Wen, M. and Ren-Chung, H. (2016), "A study on the improvements of geotechnical properties of in-situ soils by grouting", Geomech. Eng., 10(4), 67-77.
  19. Rice, J.R. (1998), "Mathematical analysis in the mechanics of fracture", Fract.: Adv. Treat., 4(2), 191-311.
  20. Showkati, A., Maarefvand, P. and Hassani, H. (2015), "Theoretical determination of stress around a tensioned grouted anchor in rock", Geomech. Eng., 8(3), 114-122.
  21. Shroff, A.V. and Shah, D.L. (1999), "Grouting technology in tunneling and dam construction", A. A. Balkema, 5(1), 626-636.
  22. Sneddon, I.N. and Transforms, F. (1991), McGraw Hill Book Co, Inc., New York, U.S.A.
  23. Tolppanen, P. and Syrjanen, P. (2003), "Hard rock tunnel grouting practice in Finland", Swed., Norw.-Lit. Study Fin. Tunnel. Assoc., 8(5), 14-20.
  24. Van Dam, D.B. (1999), "The influence of inelastic rock behavior on hydraulic fracture geometry", TU Delft, 23-31.
  25. Van De Ketterij, R.G. (2001), "Optimization of the near-wellbore geometry of hydraulic fractures propagating from cased perforated completions", TU Delft, 6(3), 133-142.
  26. Vinegar, H.J., Wills, P.B., De Martini, D.C., Shlyapobersky, J., Deeg, W.F.J., Adair, R.G. and Sorrells, G.G. (1992), "Active and passive seismic imaging of a hydraulic fracture in diatomite", J. Petrol. Technol., 44(1), 28-90. https://doi.org/10.2118/22756-PA
  27. Wang, L. and Ni, Q. (2009), "A reappraisal of the computational modelling of carbon nanotubes conveying viscous fluid", Mech. Res. Commun., 36(7), 833-837. https://doi.org/10.1016/j.mechrescom.2009.05.003
  28. Weijers, L. (1995), "The near-wellbore geometry of hydraulic fractures initiated from horizontal and deviated wells", Ph.D. Dissertation, TU Delft, 8(2), 211-222.
  29. Wong, H.Y. and Farmer, I.W. (1993), "Hydro fracture mechanisms in rock during pressure grouting", Rock Mech., 5(1), 21-41. https://doi.org/10.1007/BF01246755
  30. Yew, C.H. and Weng, X. (2014), "Mechanics of hydraulic fracturing", Gulf Prof. Publ., 3(4), 182-191.

피인용 문헌

  1. Modelling of Permeation Grouting considering Grout Self-Gravity Effect: Theoretical and Experimental Study vol.2019, pp.None, 2017, https://doi.org/10.1155/2019/7968240