... ABSTRACT: In this paper, we have carried out the permeability tests for rock joints under the shear process and have discussed the influence of the joint surface roughness and the material properties on the permeable character of rock joints. Based on the experimental results, it has been...

... displacement variation constant normal stress condition rock joint discontinuity residual displacement major geological discontinuity shear displacement excavation shear strength geological discontinuity residual friction angle Pacific Rocks 2000, Girard, Liebman, Breeds & Doe (eds) © 2000...

... ABSTRACT ABSTRACT: The mechanical behavior of jointed rock masses is strongly affected by the mechanical behavior of rock joints. In turn, the mechanical behavior of rock joints is dependent upon the relationship between the orientation of the joints and the direction of the stress (load...

... numerical approach roughness material property reinforcement shear crown area rock joint borehole assessment specimen mechanical behavior excavation loading rock mass tunnel stiffness Reinforcement Effect s-wave velocity crosshole test Pacific Rocks 2000, Girard, Liebman, Breeds & Doe...

... and shear displacement. These discussion and analysis are based on the results of an experimental study on the shear behavior of unfilled natural rock joint replicas. The behavior of single, irregular joints submitted to direct shear conditions, under either constant normal stress or constant normal...

... to the mechanical behaviour of rock joints. The experimental method and set-up are described and results are presented from normal closure tests conducted to validate the technique. Preliminary shear tests have also been conducted and their data are shown. The potential of the method for the investigation...

... ABSTRACT: In this paper, we can clarify the relationship between the shear behavior of natural rock joint and three parameters (joint surface roughness, material strength and effective normal stress) through the direct shear test in laboratory. Based on the results of the shear test, we can...

... Characterization Upstream Oil & Gas maximum value relation aperture attenuation roughness joint frequency rock joint consideration amplitude SVT rock mass seismic geotomography fractal dimension joint aperture Magnitude joint roughness RockMechanics, NeJson & Laubach (eds)© 1994 Balkema...

... ABSTRACT ABSTRACT: The paper presents findings of an experimental as well as theoretical/analytical research initiated (a) to quantify joint surface roughness on a plane and then (b) to develop a new peak shear strength criterion for rock joints which has the capability of capturing...