Journal Title
Title of Journal: Arab J Geosci
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Abbravation: Arabian Journal of Geosciences
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Publisher
Springer Berlin Heidelberg
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Authors: Manouchehr Sanei Lohrasb Faramarzi Sareh Goli Ahmad Fahimifar Asghar Rahmati Abolfazl Mehinrad
Publish Date: 2013/10/15
Volume: 8, Issue: 1, Pages: 465-475
Abstract
The joint roughness has a significant effect on the shear behavior of rough joints which control the shear strength of jointed rock mass This index plays an important role in the mechanical and hydraulic properties of rock masses There have been extensive studies in last a few decades Joint roughness coefficient JRC and fractal dimension D are two wellstudied and adopted parameters used in estimating the surface roughness of rock joints This study proposed a new relation between JRC and D and compared this relation with the previous studies by applying it on JRC profiles This relation was also introduced into Barton’s empirical equation to assess the shear strength of rock joints and its performance was estimated by applying it to more than 30 laboratory direct shear tests on natural rock joints from Bakhtiary Dam site The advantage of this study when compared to the previous works done by others is using the results of more than 30 direct shear tests on natural rock joints for the evaluation of reliability of the proposed equation Therefore the new obtained relationship between JRC and D seems to capture well the roughness coefficient of natural rock jointsThe authors express their thanks to the Iran Water and Power Resources Development Committee staff Poyry Cu Engineering Staff Moshanir Cu Engineering Staff Dezab Cu Engineering Staff Stucky Pars Cu We should also appreciate Engineering Staff for providing data support Computer Programming Team for image processing and Isfahan University Of Technology where the study was carried out
Keywords:
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