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Experimental Study on the Shear Strength of Sandy Clay Infilled Regular Rough Rock Joints

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Abstract

Infill materials in rock joints usually cause a reduction in the joint shear strength. The shear behavior of rock discontinuities depends upon whether they are clean and unfilled or filled, so this concern invites accurate understanding of the shear behavior and strength of infilled joints. A series of constant normal load direct shear tests was performed to investigate the shear strength of artificial samples with infilled rough joint surfaces having different asperity and infill characteristics. The current study focuses on the effects of factors that influence the shear strength of infilled rock joints samples, with emphasis on forward and reverse shearing. In the forward cycle, the front joint wall is compressed and possibly sheared, and the back side fill is unbonded from the joint surface and slightly disturbed. In the reverse cycle, the disturbed and weakened back side fill is under shearing. The effect of the normal stress on the joint is studied, as this factor plays an important role on the shear behavior of infilled rock joint samples. The results show that joints with low asperity angle exhibit higher shear strength during the forward shearing cycle than the reverse cycle, but in joints with steeper asperity angle, the reverse cycle exhibits greater shear strength. In the reverse cycle, the joint infill has less influence compared to the effect of the rougher surface and higher asperity inclination, even in higher normal stress.

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References

  • Asadi MS, Rasouli V, Barla G (2013) A laboratory shear cell used for simulation of shear strength and asperity degradation of rough rock fractures. Rock Mech Rock Eng 46(4):683–699

    Article  Google Scholar 

  • Barla G, Forlati F, Zaninetti A (1985) Shear behavior of filled discontinuities. In: Proceedings of the International Symposium on Fundamentals of Rock Joints, Björkliden, Sweden, September 1985

  • Barton N (1973) Review of a new shear-strength criterion for rock joints. Eng Geol 7(4):287–332

    Article  Google Scholar 

  • Barton NR (1974) A review of the shear strength of filled discontinuities in rock. Norwegian Geotechnical Institute Publication no. 105, Oslo, Norway

  • Bertacchi P, Zaninetti A, Barla G, Forlati F (1986) Laboratory tests on the shear behaviour of filled discontinuities. In: Proceedings of the International Symposium on Engineering in Complex Rock Formations, Beijing, China, November 1986

  • Brady BHG, Brown ET (2007) Rock mechanics: for underground mining. Springer, New York

    Google Scholar 

  • Brown ET (2004) The mechanics of discontinua: engineering in discontinuous rock. In: Proceedings of the 9th Australia New Zealand Conference on Geomechanics, Auckland, New Zealand, February 2004

  • Davis RO, Salt GA (1986) Strength of undulating shear surfaces in rock. Geotechnique 36(4):503–509

    Article  Google Scholar 

  • De Toledo PE, De Freitas MH (1993) Laboratory testing and parameters controlling the shear strength of filled rock joints. Geotechnique 43(1):1–19

    Article  Google Scholar 

  • De Toledo PE, De Freitas MH (1995) The peak shear strength of filled joints. In: Proceedings of the International Symposium on Fractured and Jointed Rock Masses. Balkema

  • Ehrle H (1990) Model material for shear tests of filled joints. In: Rossmanith HP (ed) Mechanics of jointed and faulted rock. Balkema, The Netherlands, pp 371–374

    Google Scholar 

  • Goodman RE (1970) Deformability of joints. In: Proceedings of the Symposium on Determination of the In-situ Modulus of Deformation of Rock

  • Grasselli G (2006) Shear strength of rock joints based on quantified surface description. Rock Mech Rock Eng 39(4):295–314

    Article  Google Scholar 

  • Grasselli G, Egger P (2003) Constitutive law for the shear strength of rock joints based on three-dimensional surface parameters. Int J Rock Mech Min Sci 40(1):25–40

    Article  Google Scholar 

  • Haberfield CM, Johnston IW (1994) A mechanistically-based model for rough rock joints. Int J Rock Mech Min Sci Geomech Abstr 31(4):279–292

    Article  Google Scholar 

  • Hoek E (1988) The Hoek–Brown failure criterion—a 1988 update. In: Proceedings of the 15th Canadian Rock Mechanics Symposium, Toronto, Canada, October 1988

  • Hoek E, Bray J (1981) Rock slope engineering. Taylor & Francis, London

    Google Scholar 

  • Hoek E, Brown ET (1980) Underground excavations in rock. The Institution of Mining and Metallurgy, London

    Google Scholar 

  • Huang SL, Oelfke SM, Speck RC (1992) Applicability of fractal characterization and modelling to rock joint profiles. Int J Rock Mech Min Sci Geomech Abstr 29(2):89–98

    Article  Google Scholar 

  • Huang TH, Chang CS, Chao CY (2002) Experimental and mathematical modeling for fracture of rock joint with regular asperities. Eng Fract Mech 69(17):1977–1996

    Article  Google Scholar 

  • Indraratna B (1990) Development and applications of a synthetic material to simulate soft sedimentary rocks. Geotechnique 40(2):189–200

    Article  Google Scholar 

  • Indraratna B, Welideniya H (2003) Shear behaviour of graphite infilled joints based on constant normal stiffness (CNS) test conditions. In: Proceedings of the 10th ISRM Congress, Technology Roadmap for Rock Mechanics, Sandton, South Africa, September 2012

  • Indraratna B, Haque A, Aziz N (1999) Shear behaviour of idealized infilled joints under constant normal stiffness. Geotechnique 49(3):331–355

    Article  Google Scholar 

  • Indraratna B, Welideniya HS, Brown ET (2005) A shear strength model for idealised infilled joints under constant normal stiffness. Geotechnique 55(3):215–226

    Article  Google Scholar 

  • Jaeger JC (1959) The frictional properties of joints in rock. Geofisica pura e applicata 43(1):148–158

    Article  Google Scholar 

  • Jaeger JC, Cook NGW, Zimmerman R (2009) Fundamentals of rock mechanics. Wiley-Blackwell, London

    Google Scholar 

  • Jiang Y, Tanabashi Y, Xiao J, Nagaie K (2004) An improved shear-flow test apparatus and its application to deep underground construction. Int J Rock Mech Min Sci 41(3):385–386

    Article  Google Scholar 

  • Kanji MA (1974) Unconventional laboratory tests for the determination of the shear strength of soil–rock contacts. In: Proceedings of the 3rd International Congress of the International Society for Rock Mechanics, Denver, Colorado, September 1974, vol 2, pp 241–247

  • Kutter HK, Rautenberg A (1979) The residual shear strength of filled joints in rock. In: Proceedings of the 4th ISRM Congress, Montreux, Switzerland, September 1979

  • Ladanyi B, Archambault G (1977) Shear strength and deformability of filled indented joints. In: Proceedings of the 1st International Symposium on the Geotechnics of Structurally Complex Formations, Capri, Italy, September 1977, pp 317–326

  • Lama RD (1978) Influence of clay fillings on shear behaviour of joints. In: Proceedings of the 3rd International Congress if the International Association of Engineering Geology, Madrid, Spain, September 1978, vol 2, pp 27–34

  • Ohnishi Y, Dharmaratne PGR (1990) Shear behaviour of physical models of rock joints under constant normal stiffness conditions. In: Proceedings of the International Symposium on Rock Joints, Loen, Norway, June 1990, pp 267–273

  • Papaliangas T, Lumsden A, Hencher S, Manolopoulou S (1990) Shear strength of modelled filled rock joints. In: Proceedings of the International Symposium on Rock Joints, Loen, Norway, June 1990, pp 275–282

  • Papaliangas T, Hencher SR, Lumsden AC, Manolopoulou S (1993) The effect of frictional fill thickness on the shear strength of rock discontinuities. Int J Rock Mech Min Sci Geomech Abstr 30(2):81–91

    Article  Google Scholar 

  • Patton FD (1966) Multiple modes of shear failure in rock. In: Proceedings of the 1st ISRM Congress. Lisbon, Portugal, September 1966

  • Pereira JP (1990a) Mechanics of filled discontinuities. In: Rossmanith HP (ed) Mechanics of jointed and faulted rock, Balkema, The Netherlands, pp 375–380

    Google Scholar 

  • Pereira JP (1990b) Shear strength of filled discontinuities. In: Proceedings of the International Symposium on Rock Joints, Loen, Norway, June 1990, pp 283–287

  • Phien-Wej N, Shrestha UB, Rantucci G (1990) Effect of infill thickness on shear behaviour of rock joints. In: Proceedings of the International Symposium on Rock Joints, Loen, Norway, June 1990, pp 289–294

  • Seidel JP, Haberfield CM (2002) Laboratory testing of concrete–rock joints in constant normal stiffness direct shear. ASTM Geotech Test J 25(4):391–404

    Google Scholar 

  • Skinas CA, Bandis SC, Demiris CA (1990) Experimental investigations and modelling of rock joint behaviour under constant stiffness. In: Proceedings of the International Symposium on Rock Joints, Loen, Norway, June 1990, pp 301–308

  • Sun W, Zheng T, Li M (1981) The mechanical effect of the thickness of the weak intercalary layers. In: Proceedings of the ISRM International Symposium, Tokyo, Japan, September 1981

  • Tulinov R, Molokov L (1971) Role of joint filling material in shear strength of rocks. In: Proceedings of the Symposium of the International Society of Rock Mechanics, Nancy, France, September 1971

  • Xu S, de Freitas MH (1988) Use of a rotary shear box for testing the shear strength of rock joints. Geotechnique 38(2):301–309

    Article  Google Scholar 

Download references

Acknowledgment

The authors would like to thank the Geotechnical Laboratory of the Civil Engineering Department of Sharif University of Technology and its technical staff for facilitating the study and their kind cooperation during this research.

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  1. Sharif University of Technology, Tehran, Iran

    Homayoun Jahanian & Mohammad Hosein Sadaghiani

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  1. Homayoun Jahanian
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  2. Mohammad Hosein Sadaghiani
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Correspondence to Mohammad Hosein Sadaghiani.

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Jahanian, H., Sadaghiani, M.H. Experimental Study on the Shear Strength of Sandy Clay Infilled Regular Rough Rock Joints. Rock Mech Rock Eng 48, 907–922 (2015). https://doi.org/10.1007/s00603-014-0643-4

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  • DOI: https://doi.org/10.1007/s00603-014-0643-4

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