... to scanlines taken across the surface of the discontinuity. Upstream Oil & Gas Patton joint roughness coefficient Barton discontinuity JRC constitutive model reservoir geomechanics Rock mechanics joint surface roughness photogrammetry Reservoir Characterization surface roughness JRC...

...1 1. INTRODUCTION The surface morphology of rock joints [1] significantly influences both the rock mass strength and the flow conductivity. The Joint Roughness Coefficient (JRC) scheme was proposed together with the empirical equation of shear strength by Barton (1973) [2], which was illustrated...

... Abstract: The influence of different sampling spacing was investigated by applying the estimation of Joint Roughness Coefficient (JRC) and Profile Mean Angle (? p ) values based on the rock joint surface three dimension model. Laser scanner was employed to gather the original data of joint...

... coefficient Barton natural rock joint test result experimental result CORRELATION BETWEEN THE JOINT ROUGHNESS COEFFICIENT AND THE ASPERITY ANGLE Xiaofeng Huang 1and Bezalel C. Haimson Geological Engineering Program Department of Materials Science and Engineering University of Wisconsin-Madison, $3706...

... ABSTRACT INTRODUCTION A numerical description of rock joint roughness is necessary to describe adequately the pseudostatic and dynamic rock-joint behavior. The most commonly used measure of joint roughness in rock engineering practice is the joint roughness coefficient (JRC), proposed...

... ABSTRACT ABSTRACT: Two methods for computing fractal dimension are applied to profiles of eleven fracture surfaces at or adjacent to Yucca Mountain, Nevada. In addition, a method for estimating joint roughness coefficient (JRC) is also applied for comparison to the fractal dimension results...

... fractal dimension. Table 1. Joint roughness coefficient and fractal dimension for stringline profiles. Profile Fractal Dimension JRC Idea1 1.0000 0 I 1.0011 3 2 1.0009 2 3 1.0031 4 4 1.0001 1 5 1.0034 4 6 1.0035 5 7 1.0033 3 8 1.0047 7 9 1.0045 8 10 1.0031 5 11 1.0014 2 12 1.0056 8 13 1.0086 13 14 1.0220...

... strength of rock joints: ß = c + O tan ( + JRC x log JCS/ (3) where: JRC = joint roughness coefficient; JCS = joint compressive strength. While rock joint compressive strength is determined by using a Schmidt hammer on the rock joint surfaces, the rock joint roughness coefficient is determined...