Experimental study on the mechanical properties and deformation failure characteristics of sandstone under graded equal amplitude cyclic loading and unloading [PDF]
Scientific ReportsTo investigate the effects of graded equal amplitude cyclic loading on rock deformation and failure, this study examines the influence of confining pressure and upper limit cyclic stress on the deformation parameters, stress–strain hysteresis curves, and
Zhiwei Ni +5 more
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Experimental study on energy evolution and damage characteristics of unloading coal under cyclic loading [PDF]
Scientific ReportsDuring deep coal mining, coal is often subjected to vertical cyclic loading and lateral unloading. Understanding the failure characteristics of coal under these combined mechanical conditions is essential for safe extraction.
Peng Zou +4 more
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Energy evolution and damage characteristics of coal rock under graded cyclic loading and unloading with confining pressure [PDF]
Scientific ReportsThis work conducts staged confining pressure cyclic loading and unloading (SCPLU) tests on coal rock to explore its energy evolution and damage features under complex stress states.
Zhongqian Chen +5 more
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Study on mechanical properties of sandstone damaged by blasting load under triaxial cyclic loading and unloading [PDF]
Scientific ReportsTo investigate the changes in the strength and deformation of the blast load-damaged sandstone roof plate under cyclic loading and unloading conditions at different confining pressures, a triaxial loading device was used to carry out graded cyclic ...
Haibo Wang +4 more
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Numerical Analysis of Cyclic Impact Damage Evolution of Rock Materials under Confining Pressure
Applied Sciences, 2023 To study the effect of cyclic impacts and confining pressure on the damage evolution of rock materials, numerical simulations of cyclic impact tests on rock materials under confining pressure were carried out by LS-DYNA using dynamic relaxation and full ...
Pu Yuan, Qinghe Zhang, Aobo Li
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Frontiers in Earth Science, 2023 The excess pore water pressure is main factor affecting the dynamic response of saturated soft clay under traffic loads. Recognize that, cyclic triaxial tests with and without cyclic confining pressure were carried out to study the development of excess ...
Juehao Huang +6 more
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The effect of confinement in liquefaction tests carried out in a cyclic simple shear apparatus [PDF]
E3S Web of Conferences, 2019 The cyclic simple shear tests can be used to reproduce in laboratory the complex behaviour of the soil during an earthquake, simulating the continuous rotation of the principal stress axes.
Mele Lucia +2 more
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Strain Accumulation in Soft Marine Clay due to One-Way Cyclic Load with Variable Confining Pressure
Advances in Civil Engineering, 2021 The effect of variable confining pressure on the strain accumulation in soft marine clay was investigated to gain a better understanding of the deformation characteristic in the subgrade of pavements due to traffic loading. A series of variable confining
Lei Sun
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Meikuang Anquan, 2023 The study of coal bump-prone property under confining pressure plays a key role in exploring the formation mechanism of coal burst in deep underground mines.
Chuanjiu ZHANG +3 more
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Meitan kexue jishu, 2023 The mining disturbance causes the rock mass in a certain range of the coal seam floor to be in a post-peak state. Due to the excavation of adjacent roadways and the mining of coal seams, the post-peak rock mass undergoes a cyclic loading-unloading ...
Peisen ZHANG +7 more
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