Abstract
An analytical method is developed to provide a better understanding of bolt shearing across joint planes under lateral confinement. The study was undertaken in conjunction with a laboratory study of the double shearing of bolts in concrete. A review of various analytical methods is discussed, and the bending behaviour of the bolts is studied under both elastic and plastic conditions. Issues examined include; hinge point location, the effect of concrete strength on the bolt-bending behaviour; the influence of bolt axial loading and bolt diameter on the hinge point position with respect to sheared joint planes. It was found that the applied axial load on the bolt had a significant bearing on the location of the hinge points in different strength concrete, particularly at low strengths. The hinge point location is also influenced by the bolt diameter.
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References
Bjurstrom S (1974) Shear strength of hard rock joints reinforced by grouted untensioned bolts. In: Proceedings of the 3rd ISRM Congress, Denver, CO, pp 1194–1199
Crawley SW, Dillon RM (1984) Steel buildings: analysis and design, 3rd edn. Wiley, New York, p 673
Dight PM (1982) Improvement to the stability of rock walls in open pit mines. PhD thesis, Monash University, Victoria, Australia, 282 pp
Dulacska H (1972) Dowel action of reinforcement crossing cracks in concrete. J Am Concr Inst 69(12):754–757
Ferrero AM (1995) The shear strength of reinforced rock joints. Int J Rock Mech Min Sci Geomech Abstr 32(6):595–605
Jalalifar H (2006) The new approach determining the load transfer mechanism in fully grouted bolts. PhD thesis, Wollongong University, Australia
Jalalifar H, Aziz NI, Hadi MSN (2006) The effect of surface profile, rock strength and pretension load on bending behaviour of fully grouted bolts. Int J Geotech Geol Eng 24:1203–1227
Moussa A, Swoboda G (1995) Interaction of rock bolts and shotcrete tunnel lining. In: Proceedings of the 5th International Symposium on Numerical Models in Geomechanics, Davos, Switzerland, September 1995, pp 443–449
Pellet F (1994) Strength and deformability of jointed rock masses reinforced by rock bolts. Civil engineering thesis, Institute of Technology, Lausanne, 206 pp
Pellet F, Boulon M (1995) A constitutive model for the mechanical behaviour of bolted rock joint. Mechanics of jointed and faulted rock, pp 179–183
Pellet F, Egger P (1996) Analytical model for the mechanical behaviour of bolted rock joints subjected to shearing. Rock Mech Rock Eng 29(2):73–97
Schubert P (1984) The bearing capacity of fully grouted rock bolts at shearing joints. Thesis, Leoben, Montan, Austria, 176 pp
Spang K, Egger P (1990) Action of fully-grouted bolts in jointed rock and factors of influence. Rock Mech Rock Eng 23:201–229
Swoboda G, Marence M (1992) Numerical modelling of rock bolts in interaction with fault system. In: Proceedings of the International Symposium on Numerical Models in Geomechanics, pp 729–737
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Jalalifar, H., Aziz, N. Analytical Behaviour of Bolt–Joint Intersection Under Lateral Loading Conditions. Rock Mech Rock Eng 43, 89–94 (2010). https://doi.org/10.1007/s00603-009-0032-6
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DOI: https://doi.org/10.1007/s00603-009-0032-6