Results 181 to 190 of about 4,379 (222)
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Modifications to the geological strength index (GSI) and their applicability to stability of slopes
International Journal of Rock Mechanics and Mining Sciences, 1999Abstract Determination of the strength of closely jointed rock masses is difficult since the size of representative specimens is too large for laboratory testing. This difficulty can be overcome by using the Hoek–Brown failure criterion. Since its introduction in 1980, the criterion has been refined and expanded over the years, particularly due to ...
H Sonmez, R Ulusay
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Tunnelling and Underground Space Technology, 2019
Abstract Among various engineering classification systems, RMR and GSI are two of the most widely used rock mass classification systems. Correlation between RMR and GSI can provide an alternative approach to determine one from the other. Based on the latest improved RMR, known as RMR14, the quantitative assessments of the correlations between RMR and
Qi Zhang +3 more
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Abstract Among various engineering classification systems, RMR and GSI are two of the most widely used rock mass classification systems. Correlation between RMR and GSI can provide an alternative approach to determine one from the other. Based on the latest improved RMR, known as RMR14, the quantitative assessments of the correlations between RMR and
Qi Zhang +3 more
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Engineering Geology, 2018
Abstract The Hoek-Brown (H-B) empirical failure envelope is widely used for calculating the mechanical behavior of the rock mass. An important input parameter of the H-B failure envelope is the Geological Strength Index (GSI), which was developed for the description of rock structure and block surface conditions.
Gábor Somodi +3 more
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Abstract The Hoek-Brown (H-B) empirical failure envelope is widely used for calculating the mechanical behavior of the rock mass. An important input parameter of the H-B failure envelope is the Geological Strength Index (GSI), which was developed for the description of rock structure and block surface conditions.
Gábor Somodi +3 more
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An application of fuzzy sets to the Geological Strength Index (GSI) system used in rock engineering
Engineering Applications of Artificial Intelligence, 2003Abstract Characterization of rock masses is one of the fundamental aspects of rock engineering. Particularly, as a rock mass characteristic, determination of the strength of closely jointed rock masses is difficult since the size of representative specimens including discontinuities is too large for laboratory testing. This difficulty can be overcome
Harun Sonmez +2 more
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International Journal of Rock Mechanics and Mining Sciences, 2008
Abstract The load distribution and deformation of rock-socketed drilled shafts subjected to axial loads were evaluated by a load-transfer approach. The emphasis was on quantifying the shear load-transfer characteristics of rock-socketed drilled shafts based on constant normal stiffness (CNS) direct shear tests performed by varying major factors ...
Hoonil Seol +3 more
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Abstract The load distribution and deformation of rock-socketed drilled shafts subjected to axial loads were evaluated by a load-transfer approach. The emphasis was on quantifying the shear load-transfer characteristics of rock-socketed drilled shafts based on constant normal stiffness (CNS) direct shear tests performed by varying major factors ...
Hoonil Seol +3 more
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Geotechnical and Geological Engineering, 2019
The main aim of this study is to present the results of the Geological Strength Index (GSI) predicted by three different empirical equations, currently available in literature, which used the input parameters applied in the well-established rock mass classification systems, namely the RMR1989 (Bieniawski in Engineering rock mass classification.
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The main aim of this study is to present the results of the Geological Strength Index (GSI) predicted by three different empirical equations, currently available in literature, which used the input parameters applied in the well-established rock mass classification systems, namely the RMR1989 (Bieniawski in Engineering rock mass classification.
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Mining Technology, 2015
Rock mass classification provides fundamental data for a numerical stability analysis of rock structures. Among rock mass classification systems, the RMR and Q systems often are used for rock support system selection and the Geological Strength Index (GSI) system for estimating rock mass strength and deformation parameters.
B.-H. Kim +3 more
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Rock mass classification provides fundamental data for a numerical stability analysis of rock structures. Among rock mass classification systems, the RMR and Q systems often are used for rock support system selection and the Geological Strength Index (GSI) system for estimating rock mass strength and deformation parameters.
B.-H. Kim +3 more
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Engineering Geology, 2009
The procedure presented in this paper has been developed for the design of grouted rock bolts in rock tunnels during preliminary design stage. The proposed approach provides a step-by-step procedure to set up a series of practical guidelines for optimum pattern of rock bolting in a variety of rock mass qualities. For this purpose, a new formula for the
Reza R. Osgoui, Erdal Ünal
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The procedure presented in this paper has been developed for the design of grouted rock bolts in rock tunnels during preliminary design stage. The proposed approach provides a step-by-step procedure to set up a series of practical guidelines for optimum pattern of rock bolting in a variety of rock mass qualities. For this purpose, a new formula for the
Reza R. Osgoui, Erdal Ünal
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DETERMINATION OF THE GEOLOGICAL STRENGTH INDEX GSI FOR THE CONDITIONS OF THE AKZHAL DEPOSIT
SCIENCE EDUCATION PRACTICEThe article presents the results of geotechnological research in accordance with rating classifications in the conditions of the Akzhal deposit. An example of determining the geological strength index GSI to get a qualitative characteristic of the studied rock mass is considered.
Imashev, A.Z. +4 more
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International Journal of Coal Geology, 2013
Abstract The use of geostatistics has become an important concept to characterize uncertainty in reservoir simulations. Only recently has the concept been applied to geomechanics and coupled reservoir geomechanical simulations. The work presented here describes how the Geological Strength Index (GSI) is used to represent the fractured reservoir ...
Nathan Deisman +2 more
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Abstract The use of geostatistics has become an important concept to characterize uncertainty in reservoir simulations. Only recently has the concept been applied to geomechanics and coupled reservoir geomechanical simulations. The work presented here describes how the Geological Strength Index (GSI) is used to represent the fractured reservoir ...
Nathan Deisman +2 more
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