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Rock mass classification systems
2022This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
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Rock mass classification for sedimentary rock masses in Indonesia coal mining areas
AIP Conference Proceedings, 2020The stability of rock slopes is important for the safety of personnel and equipment in the open pit mine. Slope instability and failure occur due to many factors such as adverse slope geometry, geological discontinuities, weak or weathered slope material due to weather influences.
Singgih Saptono +3 more
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Comparison of rock mass classification systems
Journal of Mining Science, 2007The paper presents the comparison of the most widely-applied rock-mass classifications RMR and Q and a system developed by VNIMI in Russia. It has been shown that the results obtained from using these systems for the forecast of rock mass stability and selection of support types enjoy a satisfactory conformity.
R. Rahmannejad, H. Mohammadi
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Visualization of rock mass classification systems
Geotechnical and Geological Engineering, 2006A rock mass classification system is intended to classify and characterize the rock masses, provide a basis for estimating deformation and strength properties, supply quantitative data for mine support estimation, and present a platform for communication between exploration, design and construction groups.
Ming Cai, Peter Kaiser
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SEISMIC CLASSIFICATION OF ROCK MASS QUALITIES*
Geophysical Prospecting, 1979AbstractCorrelations between longitudinal velocities and rock mechanic parameters such as fracture frequencies and “Rock Quality Designation” (RQD) values have been studied, based upon velocity data from various rock types and different geographical locations.The dispersion of values at different sites studied is on average ± 0.8 cracks per meter and ...
B. SJØGREN, A. ØFSTHUS, J. SANDBERG
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Rock Mass Classification Systems and Seismic Velocities
Proceedings, 2012According to their case study the authors recommend to use seismic velocities especially shear wave velocity to characterize the rock mass instead of classical rock mass classification systems. Their experimental work includes a case study comparing the RQD, RMR and Q-value with seismic velocities in a tunnel excavated in granitic rock.
Z. Pronay, E. Toros, P. Tildy
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TBM performance estimation using rock mass classifications
International Journal of Rock Mechanics and Mining Sciences, 2002Abstract Three tunnels for hydraulic purposes were excavated by tunnel-boring machines (TBM) in mostly hard metamorphic rocks in Northern Italy. A total of 14 km of tunnel was surveyed almost continually, yielding over 700 sets of data featuring rock mass characteristics and TBM performance.
M Sapigni +4 more
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Classification of the rock mass structures and determination of rock mass quality
Bulletin of the International Association of Engineering Geology, 1978The deformation and failure of a rock mass subjected to engineering load are essentially controlled by its internal structure, so that the study of rock mass structures should be considered as a foundation on which to understand its behaviour. Accordingly, in this paper, rock mass structures are classified into 4 types: intact blocky structures ...
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A new rock mass classification for Coal Measures Rocks
Engineering Geology, 2001This paper examines a new rock mass classification system (RMCR) for Coal Measures Rocks which is based on extensive laboratory testing results. The new system has been developed using 12 parameters which consist of mineral content index, uniaxial compressive strength, uniaxial tensile strength, Young's modulus of elasticity, shear strength, cohesion ...
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