Results 11 to 20 of about 32,235 (223)
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
doaj +3 more sources
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
doaj +3 more sources
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
doaj +3 more sources
Glass Beads Test with True Triaxial Stress Path Achieved by Conventional Triaxial Apparatus
Fractal and FractionalThe impact of fabric anisotropy, fractal dimension, and breakage on the strength and deformation of granular materials were diminished by uniform-size spherical glass beads.
Xuefeng Li, Jiahui Ma, Longlong Lv
doaj +2 more sources
A novel method for imitating true-triaxial stress path with conventional triaxial apparatus
Geomechanics and Geophysics for Geo-Energy and Geo-ResourcesThe stress paths of the cylindrical specimen in the p–q stress space by controlling the ratio of the axial and the radial loading is guaranteed to be consistent with the cuboid specimen, a novel method for imitating true-triaxial stress path by ...
Xuefeng Li, Zhigang Ma
doaj +2 more sources
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
doaj +3 more sources
Journal of Rock Mechanics and Geotechnical Engineering, 2023 The study of clastic rock failure evolution under true triaxial stress is an important research topic; however, it is rarely studied systematically due to the limitation of monitoring technology.
Feiyan Wang +3 more
doaj +1 more source
Lithosphere, 2022 As coal mining depth is over 1000 m, an overstressed effect is commonly observed around working face which shows a higher stress than the ultimate strength of the coal mass.
Guang-an Zhu +4 more
doaj +1 more source
Meitan xuebao, 2023 Deep coal is mostly in a three-dimensional unequal stress state. In order to study the dynamic characteristics of coal under impact load, the dynamic failure mechanics experiment of coal was carried out by true triaxial Hopkinson experimental system ...
Rongxi SHEN +5 more
doaj +1 more source
True Triaxial Strength Testing of Sandstones [PDF]
Proceedings, 2013 Laboratory rock mechanical tests allow estimation of rock strength and deformation behaviour under stress states similar to the in-situ conditions. In general, the in-situ stresses are described by three principal stresses, the vertical, maximum and minimum horizontal stresses.
H. Jafary Dargahi +3 more
openaire +1 more source