Rock joint roughness characterization and numerical modelling
DOI:
https://doi.org/10.24849/j.geot.2014.132.02Keywords:
Rock mass discontinuities, Scanning technique for discontinuities, Generation of surfacesAbstract
Rock joints influence the mechanical and hydraulic behaviour of rock masses and consequently of engineering works built on or in them. This work describes a scanning technique for the description of the roughness of rock joints, aiming at contributing to the analysis of contact and wear mechanisms. The numerical surfaces are characterized by geostatistical parameters that may be compared with empirical parameters, such as JRC, allowing the quantification of the roughness degradation after mechanical shear and compression tests. The results enabled the generation of synthetic surfaces that may be used in micromechanical models for the study of the mechanical and hydraulic behaviour of rock joints.
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