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Study on the mechanical properties of unloading damaged sandstone under cyclic loading and unloading [PDF]

open access: yesScientific Reports, 2023
To reveal the mechanical properties of rocks under stress disturbance and unloading confining pressure, conventional triaxial compression tests, triaxial compression tests on unloading damaged sandstone, and cyclic loading and unloading tests on ...
Hengbin Zhang   +4 more
doaj   +5 more sources

Study on Kaiser effect of granite under cyclic loading and unloading at different temperatures [PDF]

open access: yesScientific Reports
During the tunneling process in high-temperature environments, the surrounding rock mass is subjected to periodic pressurization and depressurization, making it prone to instability and failure.
Xiankai Bao   +5 more
doaj   +5 more sources

Mechanical Properties and Energy Dissipation of Sandstone under Cyclic Loading-Unloading [PDF]

open access: yesShock and Vibration, 2021
For the bearing rock in geotechnical engineering, it is frequently affected by external loads. This paper adopted different upper limits of stress to carry out cyclic loading-unloading on the sandstone specimens to make them in different damage degrees ...
Shoudong Xie   +5 more
doaj   +3 more sources

Mechanical behaviour of medium-grained sandstones exposed to differential cyclic loading with distinct loading and unloading rates

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2022
This work aims to investigate the mechanical behaviour of medium-grained sandstones under cyclic loading with different loading/unloading rates. This type of cyclic loading is called differential cyclic loading (DCL) and is considered for testing rock ...
Zhengyang Song   +4 more
doaj   +4 more sources

Mechanical and hydraulic properties of fault rocks under multi-stage cyclic loading and unloading

open access: yesInternational Journal of Coal Science & Technology, 2023
The rock mass in fault zones is frequently subjected to cyclic loading and unloading during deep resource exploitation and tunnel excavation. Research on the mechanical and hydraulic characteristics of fault rock during the cyclic loading and unloading ...
Wentao Hou   +5 more
doaj   +3 more sources

Permeability of the Hydrated Shale under Cyclic Loading and Unloading Conditions [PDF]

open access: yesGeofluids, 2020
The hydrated shales under cyclic loading and unloading conditions are common for the shale reservoir development; corresponding mechanical properties and permeability evolution are very significant and should be deeply researched.
Liu Xianshan   +3 more
doaj   +3 more sources

Analysis of Energy Evolution and Acoustic Emission Characteristics of Rocks under Cyclic Loading and Unloading

open access: yesApplied Sciences, 2023
This paper presents two experimental schemes, graded cyclic loading and unloading, and variable lower limit cyclic loading and unloading, to investigate the energy evolution and acoustic emission characteristics of rocks under different cyclic loading ...
Zhushuai Wang   +5 more
doaj   +4 more sources

Mechanical behavior of sandstone during post-peak cyclic loading and unloading under hydromechanical coupling

open access: yesInternational Journal of Mining Science and Technology, 2023
This paper investigates mechanical behaviours of sandstone during post-peak cyclic loading and unloading subjected to hydromechanical coupling effect, confirming the peak and residual strengths reduction laws of sandstone with water pressure, and ...
Yanlin Zhao   +6 more
doaj   +4 more sources

Study of Mechanical Property of Rock under Uniaxial Cyclic Loading and Unloading [PDF]

open access: yesAdvances in Civil Engineering, 2018
Through studying the mechanics, energy, and deformation features of rock under uniaxial cyclic loading and unloading, the findings are as follows: (1) under cyclic loading and unloading, the curve of stress and strain for loading and unloading in every ...
Hongjun Guo   +3 more
doaj   +3 more sources

Study on mechanical properties of sandstone damaged by blasting load under triaxial cyclic loading and unloading [PDF]

open access: yesScientific Reports
To 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
doaj   +4 more sources

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