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Grasselli G (2005) 3D Behaviour of bolted rock joints: experimental and numerical study. Int J Rock Mech Min Sci Geomech Abstr 32(6):595–605 International Society for Rock Mechanics: ISRMįerrero A (1995) The shear strength of reinforced rock joints.
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In: Proceedings 7th ISRM congress, Aachen, Germany. In: Proceedings international symposium on rock bolting, Balkema, Rotterdam, pp 523–538Įgger P, Pellet F (1991) Strength and deformation properties of reinforced jointed media under true triaxial conditions. J Rock Mech Geotech Eng 6(5):428–437ĭight PM (1982) A case study of the behaviour of a rock slope reinforced with fully grouted rock bolts. Australian Geomechanics SocietyĬhen Y (2014) Experimental study and stress analysis of rock bolt anchorage performance. In: Proceedings the mini-symposium: geotechnical aspects of tunnelling for infrastructure projects, Sydney Chapter, Australia, Sydney. The numerical simulation of the bolt/grout interaction and deformational behaviour was found to be in close agreement with earlier experimental test results.ĪNSYS IP (2010) Lecture 5 Rate independent plasticity-ANSYS mechanical structural nonlinearitiesīadelow F, Best R, Bertuzzi R, Maconochie D (2005) Modelling of defect and rock bolt behaviour in geotechnical numerical analysis for Lan Cove Tunnel. The main conclusions drawn from the study were that the level of bolt resistance to shear was influenced by rock strength, inclination angle, and diameter of the rockbolt. The numerical model considered three material types (steel, grout and concrete) and three interfaces (concrete–concrete, grout–concrete and grout–rockbolt). A number of parameters were considered including concrete strength, inclination between rockbolt and joints and rockbolt diameter. To investigate the influence of various parameters in the double shear test, a numerical model of a fully grouted rockbolt installed in concrete was constructed and analysed using FLAC3D code. A double shear test was developed to examine the shear behaviour of a bolt installed across two joints at different angles. The response of rock anchorage systems has been studied in shear, both by laboratory tests as well as numerical modelling in this study. Failure of rockbolts as a result of shear or bending loads can often be found in underground excavations.