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Study of contact pressure distribution between cutter and rock surface using the discrete element method

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 146 ()

The contact pressure distribution between the disc cutter and rock surface plays an important role in cutter force prediction, cutter optimization and......

Failure in rock with intersecting rough joints under uniaxial compression

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 146 ()

Uniaxial compressive tests were performed on Y-jointed granite specimens to explore how intersecting rough joints affect the strength, failure mode, a......

Application of superposition method to study the mechanical behaviour of overlying strata in longwall mining

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 146 ()

The sudden failure of roof strata is one of the fiercest dynamic instability events in underground longwall mining. To understand the mechanical behav......

A wing-crack extension model for tensile response of saturated rocks under coupled static-dynamic loading

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 146 ()

Saturated rocks, widely existing in various deep underground engineering, are likely to be encountered coupled static-dynamic loading. It is thus vita......

Study on very long-term creep tests and nonlinear creep-damage constitutive model of salt rock

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 146 ()

To better understand the creep mechanical behavior of salt rock under very long-term tests and more accurately predict the long-term deformation of th......

Strain rate and size effects on the brittleness indexes of Carrara marble

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 146 ()

The determination of rock brittleness is crucial in analyzing excavation efficiency, deep mining stability, geological hazards, while nearly all the p......

Temperature-dependent mechanical properties and crack propagation modes of 3D printed sandstones

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 146 ()

We aim to investigate the mechanical properties and crack propagation modes of 3D printed sandstone after high temperature, focusing on the alteration......

Rockburst prediction and analysis of activity characteristics within surrounding rock based on microseismic monitoring and numerical simulation

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 142 ()

The access tunnel in the main powerhouse of the Shuangjiangkou hydropower station is located in an area with high in-situ stress and complex geologica......

Permeability evolution of two sedimentary rocks at different temperatures based on the Katz-Thompson theory

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 144 ()

Previous researchers have shown that the Katz-Thompson theory is useful in predicting permeability of sedimentary rock from mercury intrusion porosime......

Differential time-dependent fracturing and deformation characteristics of Jinping marble under true triaxial stress

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 138 ()

The conventional (sigma(1) > sigma(2) = sigma(3)) multi-step creep test and true triaxial (sigma(1) > sigma(2) > sigma(3)) multi-step creep t......

The strength characteristics and progressive failure mechanism of soft rock-coal combination samples with consideration given to interface effects

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 138 ()

The coal-measure rock masses of China's Ordos Basin are mainly composed of typical soft rock with low strength, which bear loads together with the coa......

Effects of grain size distributions on the macro-mechanical behavior of rock salt using micro-based multiscale methods

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 138 ()

Although the traditional phenomenological mechanical model of rock salt based on macro-mechanical experiments adequately describes its macroscopic mec......

Evolutions of the unfrozen water content of saturated sandstones during freezing process and the freeze-induced damage characteristics

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 142 ()

The precise determination of unfrozen water content is of great significance to understand the freezing process of pore water and reveal the freeze-in......

A geomechanical method for predicting the height of a water-flowing fractured zone in a layered overburden of longwall coal mining

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 143 ()

Mine water inrushes result in serious casualties and property losses, and mining-induced water-flowing fractures are important channels for mine water......

Laboratory study on three-dimensional characteristics of gravity flow during longitudinal sublevel caving

期刊: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2021; 144 ()

Ore recovery and dilution in caving mines are strongly determined by the flow characteristics of broken rock, especially under inclined boundary condi......

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