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

Scientific 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, Lehua Wang, Jianlin Li, Huafeng Deng, Xiaoliang Xu   +4 more
doaj   +4 more sources

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

Scientific 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, Genshuo Zhu, Ziyi Lu, Qi Zong, Hao Wang   +4 more
doaj   +4 more sources

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

Scientific 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, Shunjia Huang, Yongjun Lv, Yue Huang, Lizhi Wang, Xiaofan Zhang   +5 more
doaj   +4 more sources

Energy Action Mechanism of Reinforced Sandstone under Triaxial Cyclic Loading and Unloading [PDF]

Materials, 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
Shuguang Zhang, Yanmo Li, Juefeng Yang, Yu Song, Li Yang, Jiahao Guo   +5 more
openaire   +3 more sources

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

Shock 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, Chang Su, Ying Xu, Qianqian Wang, Jian Wang, Zixiang Xia   +5 more
doaj   +2 more sources

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

Geofluids, 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, Li Man, Xu Ming, Kang Zhiyong   +3 more
doaj   +2 more sources

Study on the energy characteristics of rocks under cyclic loading and unloading [PDF]

Scientific Reports
Abstract 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.
Shaoqing Niu, Jinwen Wu, Jinchang Zhao
openaire   +4 more sources

Experimental study on the mechanical properties and deformation failure characteristics of sandstone under graded equal amplitude cyclic loading and unloading [PDF]

Scientific Reports
To 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, Jie Li, Ke Qin, Xiaogang Wu, Junxing Zhu, Shiming Zhou   +5 more
doaj   +2 more sources

Energy dissipation and dilation processes of rock mass under incremental cyclic loading and unloading [PDF]

Scientific Reports
Abstract The deterioration of the mechanical properties of rock mass in underground engineering due to energy dissipation and microfracture accumulation under cyclic loading and unloading (CLU) has become a hot research topic in recent years.
Bin Wang, Jiebing Zhu, Zhihao Jin, Dongdong Xu, Yujie Zhu, Zijin Guo   +5 more
openaire   +4 more sources

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

Advances 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, Ming Ji, Yidong Zhang, Meng Zhang   +3 more
doaj   +2 more sources