Results 1 to 10 of about 74,912 (281)
Journal of Rock Mechanics and Geotechnical Engineering, 2014 Simulations are conducted using five new artificial neural networks developed herein to demonstrate and investigate the behavior of rock material under polyaxial loading.
Rennie Kaunda
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Effect of Intermediate Principal Stress on the Strength, Deformation, and Permeability of Sandstone [PDF]
Energies, 2018 Although the mechanical behaviors and flow aspects of sandstone have been previously investigated, studies of the effect of the intermediate principal stress (σ2) on the strength, deformation, and permeability of sandstone are lacking. In this work, the mechanical behaviors and permeability of sandstone under true triaxial stress conditions were ...
Zhenlong Song +5 more
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Failure criterion for soft rocks considering intermediate principal stress
International Journal of Mining Science and Technology, 2021 The significant differences between hard rocks (more brittle) and soft rocks (more ductile) may suggest the use of different failure criteria. A strength criterion for soft rocks that includes intermediate principal stress was proposed. The new criterion includes two independent parameters: the uniaxial compressive strength (σci), which can be obtained
Zhongwei Wang, Quansheng Liu
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Effect of intermediate principal stress on the stability of slopes [PDF]
Archives of Civil EngineeringThe intermediate principal stress (σ2 ) effect is a mechanical property inherent in many rock and soil materials. However, the effect of σ2 is often ignored in slope stability analyses, and its impact on slope stability is seldom investigated. The primary purpose of this study is to thoroughly investigate the impact of the σ2 effect on slope stability ...
Zongyuan Ma, Lei Liu
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Impact of the intermediate principal stress on the strength of heterogeneous rock [PDF]
Journal of Geophysical Research, 2002 A numerical model simulating a granular material has been used to study the impact of the intermediate principal stress on rock strength. While maintaining the minimum principal stress at zero, the model predicts strength to increase with increasing constant ratios of σ2/σ1.
Erling Fjær
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The effect of the intermediate principal stress on pillar strength
International Journal of Coal Science & TechnologyAbstract Room and pillar mining is an underground mining method that utilizes natural pillar support to control rock mass behavior, ensuring mine stability and a safe mine environment. This study specifically documents the influence of the intermediate principal stress component on the pillar behavior.
Duncan Maina, Heinz Konietzky
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International Journal of Mining Science and Technology, 2021 Precisely understanding the dynamic mechanical properties and failure modes of rocks subjected to true triaxial stress state (σ1 > σ2 > σ3, where σ1, σ2, and σ3 are the major principal stress, intermediate principal stress, and minor principal stress ...
Wei You, Feng Dai, Yi Liu
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Influence of orientation of the intermediate principal stress on fracture reactivation in granite
Journal of Rock Mechanics and Geotechnical EngineeringFracture (fault) reactivation can lead to dynamic geological hazards including earthquakes, rock collapses, landslides, and rock bursts. True triaxial compression tests were conducted to analyze the fracture reactivation process under two different orientations of σ2, i.e. σ2 parallel to the fracture plane (Scheme 2) and σ2 cutting through the fracture
Wei Wang +8 more
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矿业科学学报, 2023 In deep mining, coal-rock is in a state of three unequal forces, and the intermediate principal stress has the influence on the deformation and strength characteristics of coal-rock.
Wang Kai +4 more
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Research on Coal Mechanical Properties Based on True Triaxial Loading and Unloading Experiment
Advances in Civil Engineering, 2021 To study the safety issues caused by coal mine excavation, self-developed simulation of earth interior atmosphere and sound test system was used to perform true triaxial loading and unloading tests of coal.
Yanyan Peng +4 more
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