Results 11 to 20 of about 9,675 (269)
Study on the failure and acoustic emission characteristics of coal under graded cyclic loading and unloading stress paths [PDF]
Scientific ReportsTo study the influence of cyclic disturbance stress on the mechanical behavior of coal during mining, a gas containing coal fluid-solid coupling servo seepage experimental system was used to conduct experimental research on the acoustic emission (AE ...
Minke Duan +7 more
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Applied Sciences, 2019 The permeability characteristics of a broken coal mass under repeated loading and unloading conditions exert significance on spontaneous combustion of coal in goaf during the mining of coal seam groups.
Bo Li, Quanle Zou, Yunpei Liang
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Sustainability, 2023 Coal mining often causes periodic disruption in the rock mass around the stope. The study of the deformation and failure characteristics of cyclic loading and unloading sandstone is very critical for gaining a thorough understanding of the mechanisms of rock damage, degradation, and failure. This kind of investigation is very helpful in determining the
Hao Xu +7 more
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Study on the energy characteristics of rocks under cyclic loading and unloading. [PDF]
Sci RepAbstract The deep-buried rock masses influenced by prolonged geological processes have accumulated vast amounts of energy. This stored energy is released due to disturbances in the external environment, a series of geological disasters is triggered.
Niu S, Wu J, Zhao J.
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Energy Action Mechanism of Reinforced Sandstone under Triaxial Cyclic Loading and Unloading. [PDF]
Materials (Basel), 2022 In underground engineering, reinforcement is a necessary means to ensure the stability of surrounding rock. Due to the stress redistribution caused by excavation disturbances, the reinforced rock mass is frequently subjected to loading and unloading, and its mechanical properties change accordingly. Based on the above engineering practice, using pasted
Zhang S +5 more
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Experimental Study of Energy Evolution at a Discontinuity in Rock under Cyclic Loading and Unloading. [PDF]
Materials (Basel), 2022 Energy is often dissipated and released in the process of rock deformation and failure. To study the energy evolution of rock discontinuities under cyclic loading and unloading, cement mortar was used as rock material and a CSS-1950 rock biaxial rheological testing machine was used to conduct graded cyclic loading and unloading tests on Barton’s ...
Zheng W +5 more
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iScienceSummary: The diversion tunnel is frequently subjected to cyclic dynamic loads during blasting and mechanical excavation. To explore the theory and mechanism of cyclic dynamic mechanical damage for granite in a diversion tunnel under cyclic loading ...
Rongzhou Yang, Ying Xu
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Fractal and FractionalTo study the fractal characteristics and energy evolution of sandstones under true three-dimensional stress states, a true triaxial compression test and a cyclic loading and unloading test of sandstone specimens under different loads were carried out ...
Qihang Zhang +2 more
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Energy Science & Engineering, 2023 To gain insight into the reduction mechanism of water on the dynamic destabilization failure character of coal under mining disturbance conditions, the effect of water on the damage and energy dissipation feature of coal was investigated via cyclic ...
Honghua Song +7 more
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Geofluids, 2022 Mining under the sea is a challenging task in China. Affected by blasting, tunneling, and other engineering disturbance, surrounding rock is often in a state of cyclic loading and unloading stress.
Yan Chen +5 more
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