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
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.
Zongyuan Ma, Lei Liu
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Stability analysis of a tunnel face reinforced with bolts considering the intermediate principal stress component [PDF]
Scientific ReportsThe stability of the tunnel face during excavation is a critical issue in tunnel construction. Traditional methods have offered various approaches for analyzing tunnel face stability but often neglect complex factors such as the intermediate principal ...
Kai Xu +6 more
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The effect of the intermediate principal stress on pillar strength
International Journal of Coal Science & TechnologyRoom 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.
Duncan Maina, Heinz Konietzky
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Modified true triaxial Hoek-Brown criterion considering intermediate principal stress effect
Meitan kexue jishuIn order to improve the Hoek-Brown strength criterion not considering the influence of intermediate principal stress on rock strength, the evolutions of rock strength were investigated according to the results of the rock true triaxial compression test ...
Yapeng LI +3 more
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Study on calculation of nonlimit passive earth pressure of unsaturated soil behind retaining wall [PDF]
Scientific ReportsThe accurate calculation of soil pressure behind retaining walls is essential for their design and construction. Currently, research on the non-limit soil pressure of unsaturated soil behind retaining walls is limited.
Yaxin Zhang +5 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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Effect of Principal Stress Rotation and Intermediate Principal Stress Changes on the Liquefaction Resistance and Undrained Cyclic Response of Ottawa Sand [PDF]
Journal of Geotechnical and Geoenvironmental Engineering, 2022 In laboratory testing, the liquefaction resistance of sands is typically evaluated using cyclic triaxial and simple shear tests. These tests cannot be used in a rigorous manner to systematically assess the effects of principal stress rotation and intermediate principal stress changes on the undrained cyclic response of sands.
Erdem O. Tastan, J. Antonio H. Carraro
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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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Influence of Intermediate Principal Stress on Undrained Behavior of Intact Clay under Pure Principal Stress Rotation [PDF]
Mathematical Problems in Engineering, 2013 This study presents the accumulations of the excess pore water pressure and the deformation as well as the noncoaxial behavior of intact soft clay subjected to pure principal stress rotation. Series of tests were carried out by using a dynamic hollow cylinder apparatus to highlight the influence of intermediate principal stress parameterb. It was found
Jian Zhou +3 more
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