Some Effects of Shearing Velocity on the Shear Stress-Deformation Behaviour of Hard-Soft Artificial Material Interfaces

被引：32

作者：

Atapour H. ^{[1
]}

Moosavi M. ^{[1
]}

机构：

[1] Department of Mining Engineering, Tehran University, Tehran, North Karegar Ave.

来源：

Geotechnical and Geological Engineering | 2013年 / 31卷 / 05期

关键词：

Artificial joint; Cemented paste backfill-rock; Concrete-plaster interface; Pseudo-static shear velocity; Shear behaviour;

D O I：

10.1007/s10706-013-9687-6

中图分类号：

学科分类号：

摘要：

Shear behaviour of the joints formed by the interface of two different material types, such as rock and cemented paste backfill, rock and concrete or two different rock types, have practical importance in many rock engineering activities. This paper presents the results of an experimental investigation into the shear behaviour of these special joints under pseudo-static shear velocity. Direct shear tests on concrete-plaster interfaces were carried out under boundary conditions of constant normal load and constant normal stiffness. Shearing velocities of the performed tests were in the range of 0.3-30 mm/min. The results of the shear tests conducted on the planar and rough artificial prepared joints showed that the shearing velocity has a significant influence on the shear strength, friction angle and shear stiffness of the hard-soft material interface. So that, these parameters were decreased when shear velocity was increased. Also, comparison of the tests results that performed on the concrete-plaster joints with those from tests on the plaster-plaster and concrete-concrete interfaces showed that the shear behaviour of concrete-plaster interface is governed mainly by the shear parameters of the plaster block (namely softer material). © 2013 Springer Science+Business Media Dordrecht.

引用

页码：1603 / 1615

页数：12

共 41 条

[1]

Armand G., Contribution a la caracterisation en laboratoire et a la modelisation constitutive du comportement mecanique des joints rocheux, (2000)

[2]

Barla G., Barbero M., Scavia C., Zauinetti A., Direct shear testing of single joints under dynamic loading, Rock Joints, pp. 447-454, (1990)

[3]

Barton N., Review of a new shear strength criterion for rock joints, Eng Geol, 7, pp. 287-332, (1973)

[4]

Boulon M., A 3D direct shear device for testing the mechanical behaviour and the hydraulic conductivity of rock joints, Proceedings of mechanics of jointed and faulted rock, pp. 407-413, (1995)

[5]

Brackebusch F.W., Basics of paste backfill systems, Min Eng, 46, pp. 1175-1178, (1994)

[6]

Crawford A.M., Curran J.H., The influence of shearing velocity on the frictional resistance of rock discontinuities, Int J Rock Mech Min Sci Geomech Abstr, 18, pp. 505-515, (1981)

[7]

Cuisiat F.D.E., Hyett A.J., Hudson J.A., Numerical investigation of the boundary conditions effect on rock joint behaviour, Proceedings of the International Conference on Rock Joints, pp. 611-616, (1990)

[8]

Fall M., Benzaazoua M., Modeling the effect of sulphate on strength development of paste backfill and binder mixture optimization, J Cem Concr Res, 35, 2, pp. 301-314, (2005)

[9]

Fall M., Benzaazoua M., Ouellet S., Experimental characterization of the influence of tailings fineness and density on the quality of cemented paste backfill, Min Eng, 18, pp. 41-44, (2005)

[10]

Fall M., Belem T., Samb S., Benzaazoua M., Experimental characterization of the stress-strain behaviour of cemented paste backfill in compression, J Mater Sci, 42, 11, pp. 3914-3992, (2007)

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