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Effect of true triaxial principal stress unloading rate on strain energy density of sandstone [PDF]
Scientific ReportsDeep rock are often in a true triaxial stress state. Studying the impacts of varying unloading speeds on their strain energy (SE) density is highly significant for predicting rock stability.
Zhixi Liu +3 more
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Verification of a novel stress path method by true-triaxial test [PDF]
Scientific ReportsTo verify the novel method of achieving a true-triaxial stress path with the pseudo-triaxial apparatus, a series of drained and undrained tests were carried out for the identical scheme with pseudo-triaxial apparatus and true-triaxial apparatus ...
Zhigang Ma, Xuefeng Li, Longlong Lv
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International Journal of Mining Science and TechnologyThe far-field microdynamic disturbance caused by the excavation of deep mineral resources and underground engineering can induce surrounding rock damage in high-stress conditions and even lead to disasters.
Zhi Zheng +5 more
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Study of the mechanical characteristics of coal-serial sandstone after high temperature treatment under true triaxial loading [PDF]
Scientific Reports, 2023 In this study, a series of true triaxial loading tests were carried out on coal-measure sandstone after high temperature treatment by using a self-developed true triaxial test system combined with acoustic emission (AE) monitoring, and the mass loss ...
Shuai Wang +5 more
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International Journal of Mining Science and Technology, 2022 It has become an inevitable trend of human development to seek resources from the deep underground. However, rock encountered in deep underground engineering is usually in an anisotropic stress state (σ1>σ>σ3) due to the influences of geological ...
Heping Xie +4 more
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A novel true triaxial test system for microwave-induced fracturing of hard rocks
Journal of Rock Mechanics and Geotechnical Engineering, 2021 This study introduces a test system for microwave-induced fracturing of hard rocks under true triaxial stress. The test system comprises a true triaxial stress loading system, an open-ended microwave-induced fracturing system, a data acquisition system ...
Xia-Ting Feng +6 more
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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 +4 more
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True-Triaxial Drained Test of Tengger Desert Sand [PDF]
Advances in Civil Engineering, 2020 For the lack of accurate test results in design and maintenance of desert-crossing highways in the Tengger Desert of western China, the GDS true-triaxial system was used to conduct the drained test on dense sand.
Xuefeng Li +3 more
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Experimental study of true triaxial high pressure subcritical water impact fracturing. [PDF]
Sci Rep, 2023 AbstractA new fluid alternative to slick water for fracturing shale gas can reduce the waste of water resources and improve the extraction efficiency, enabling volumetric fracturing. For the new fracturing technique, the experiments of different release pressures under pre-injection and for pre-injection were conducted using a self-designed true ...
Hu S, Wang X, Wang E.
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A study on the influences of a hygrothermal environment on the compressive strength and failure criteria of asphalt mixtures based on true triaxial tests [PDF]
Heliyon, 2022 Based on a high-pressure servo static and dynamic true triaxial test machine (tawz-500/300), uniaxial and true triaxial tests of AC-25C asphalt mixtures under different heat moisture coupling treatments were performed, and the triaxial compressive ...
Pan Wang +4 more
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