Experimental and Numerical Analysis of the Shear Behaviour of Cemented Concrete–Rock Joints

详细信息    查看全文

• 作者：H. M. Tian ; W. Z. Chen ; D. S. Yang ; J. P. Yang
• 关键词：Cemented concrete–rock joint ; Shear behaviour ; Cohesive damage ; Interface model
• 刊名：Rock Mechanics and Rock Engineering
• 出版年：2015
• 出版时间：January 2015
• 年：2015
• 卷：48
• 期：1
• 页码：213-222
• 全文大小：907 KB
• 参考文献：1. Abaqus, Analysis user’s manual, Version 6.5 (2004)
  2. Bahaaddini M, Sharrock G, Hebblewhite BK (2013) Numerical direct shear tests to model the shear behaviour of rock joints. Comput Geotech 51:101-15 CrossRef
  3. Barton N, Bandis S (1990) Review of predictive capabilities of JRC-JCS model in engineering practice. In: Proceeding of international symposium on rock joints, 4- June, pp 603-10
  4. Barton N, Choubey V (1977) The shear strength of rock joints in theory and practice. Rock Mech 10:1-4 CrossRef
  5. Frantziskonis G, Desai CS (1987) Constitutive model with strain softening. Int J Solids Struct 23(6):733-50 CrossRef
  6. Gu XF, Seidel JP, Haberfield CM (2003) Direct shear test of sandstone-concrete joints. Int J Geomech 3(1):21-3 CrossRef
  7. Haberfield CM, Seidel JP (1999) Some recent advances in the modelling of soft rock joints in direct shear. Geotech Geol Eng 17:177-95 CrossRef
  8. Indraratna B, Haque A (2000) Experimental and numerical modeling of shear behaviour of rock joints. In: Proceeding of GeoEng 2000, an international conference on geotechnical and geological engineering, Pennsylvania, USA
  9. Jia SP (2009) Hydro-mechanical coupled creep damage constitutive model of boom clay, back analysis of model parameters and its engineering application. PhD Thesis. Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, China (In Chinese)
  10. Johnstone IW, Lam TSK (1984) Frictional characteristics of planar concrete–rock interfaces under constant normal stiffness condition. In: Proceeding of the 4th Australia–New Zealand conference on geomechanics, Perth, Australia, pp 397-01
  11. Karami A, Stead D (2008) Asperity degradation and damage in the direct shear test: a hybrid FEM/DEM approach. Rock Mech Rock Eng 41(2):229-66 CrossRef
  12. Kodikara JK, Johnston IW (1994) Shear behaviour of irregular triangular rock-concrete joints. Int J Rock Mech Min Sci Geomech 31:313-22 CrossRef
  13. Ladanyi B, Archambault G (1969) Simulation of shear behaviour of a jointed rock mass. In: Proceeding of the 11th US rock mechanics symposium (USRMS). Berkeley, America, pp 105-26
  14. Lam TSK, Johnstone IW (1989) Shear behaviour of regular triangular concrete/rock joints-evaluation. J Geotech Eng 115:597-54 CrossRef
  15. Nelder JA, Mead R (1965) A simplex method for function minimization. Comput J 7:308-13 CrossRef
  16. Ooi LH, Carter JP (1987) Direct shear behaviour of concrete-sandstone interfaces. In: Proceeding of the 6th international conference on rock mechanics, Montreal, Canada, pp 467-70
  17. Patton FD (1966) Multiple modes of shear failure in rock. In: Proceeding of the 1st ISRM congress. Lisbon, Portugal, pp 509-13
  18. Saeb S, Amadei B (1992) Modelling rock joints under shear and normal loading. Int J Rock Mech Min Sci Geomech Abstr 29(3):267-78 CrossRef
  19. Saiang D, Malmgren L, Norflund E (2005) Laboratory test on shotcrete-rock joints in direct shear, tension and compression. Rock Mech Rock Eng 38(4):275-97 CrossRef
  20. Seidel JP, Haberfield CM (2002a) Laboratory testing of concrete–rock joints in constant normal stiffness direct shear. Geotech Test J 25:391-04
  21. Seidel JP, Haberfield CM (2002b) A theoretical model for rock joints subjected to constant normal stiffness direct shear. Int J Rock Mech Min Sci 39(5):539-53 CrossRef
  22. Vosniakos K (2007) Physical and numerical modelling of shear behaviour of saw-toothed
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Geophysics and Geodesy
  Civil Engineering
  
• 出版者：Springer Wien
• ISSN：1434-453X

文摘

The shear behaviour of cemented concrete–rock joints is a key factor affecting the shear resistance of dam foundations, arch bridge foundations, rock socketed piles and rock bolts in rock engineering. This paper presents an experimental and numerical investigation of the shear behaviour of cemented concrete–rock joints by direct shear tests. In this study we focused on the bond strength of cemented concrete–rock joints, so limestone with smooth surfaces was used for samples preparation to reduce the roughness effect. The experimental results show that the shear strength of joints with good adhesion is strongly dependent on the bond strength of the cohesive interfaces when the applied normal stress is less than 6?MPa. In addition, the sudden and gradual bond failure processes of the cohesive interfaces were observed with an increase of the normal stress. A simple, yet realistic, model of cemented concrete–rock joint is proposed to simulate the observed behaviour, including elastic behaviour of the bond before peak shear stress and post-peak behaviour due to bond failure and friction increase. Finally, the parameters analysis and calibration of the proposed model are presented.