Mechanical properties and energy characteristics of coal at different depths under cyclic triaxial loading and unloading

A Zhang, H Xie, R Zhang, M Gao, J Xie, Z Jia… - International Journal of …, 2023 - Elsevier
To comprehensively understand the differences in mechanical behavior of coal during the
mining process at different depths, cyclic triaxial loading and unloading (CTLU) experiments …

[HTML][HTML] Experimental investigations on effects of gas pressure on mechanical behaviors and failure characteristic of coals

Y Xue, PG Ranjith, F Gao, Z Zhang, S Wang - Journal of Rock Mechanics …, 2023 - Elsevier
The mechanical behavior of coal is the key factor affecting underground coal mining and
coalbed methane extraction. In this study, triaxial compression and seepage tests were …

[HTML][HTML] Damage constitutive model of uniaxially compressed coal material considering energy dissipation

P Zhang, F Gong, S Luo, X Si, L Xu - Journal of Materials Research and …, 2023 - Elsevier
Coal plays a dominant role in China's energy production and consumption, which also
serves as the cornerstone for energy security. The constitutive relationship of coal material is …

Effects of acoustic emission and energy evolution of rock specimens under the uniaxial cyclic loading and unloading compression

Q Meng, M Zhang, L Han, H Pu, T Nie - Rock Mechanics and Rock …, 2016 - Springer
Characteristics of energy accumulation, evolution, and dissipation in uniaxial cyclic loading
and unloading compression of 30 sandstone rock specimens under six different loading …

Effect of unloading rate on the mechanical behavior and fracture characteristics of sandstones under complex triaxial stress conditions

Y Zhao, J Bi, C Wang, P Liu - Rock Mechanics and Rock Engineering, 2021 - Springer
In recent years, many studies have shown that it is meaningful to place rocks under stress
paths corresponding to various loading and unloading conditions. However, the deformation …

Linear energy storage and dissipation laws and damage evolution characteristics of rock under triaxial cyclic compression with different confining pressures

LUO Song, F GONG, L LI, P Kang - … of Nonferrous Metals Society of China, 2023 - Elsevier
Triaxial cyclic compression tests with different confining pressures were conducted to
explore the energy distribution characteristics of rock and their responses to confining …

Energy evolution characteristics of hard rock during triaxial failure with different loading and unloading paths

D Li, Z Sun, T Xie, X Li, PG Ranjith - Engineering Geology, 2017 - Elsevier
Triaxial compression tests were conducted on fine-to-medium–grained granite specimens,
with initial confining pressures of 10, 20, 40, and 60 MPa, under various loading and …

Experimental study on rock mechanical behavior retaining the in situ geological conditions at different depths

H Xie, C Li, Z He, C Li, Y Lu, R Zhang, M Gao… - International Journal of …, 2021 - Elsevier
Understanding the real physical and mechanical characteristics of deep rocks under in situ
geological conditions is fundamental for deep rock engineering. Rock mechanics that …

Causes, characterization, damage models, and constitutive modes for rock damage analysis: A review

Z Ahmed, S Wang, MZ Hashmi, Z Zishan… - Arabian Journal of …, 2020 - Springer
The analysis of damage process and the characterization of damaged rock masses through
numerical models are the most difficult and challenging tasks in geotechnical engineering …

Experimental study on revealing the mechanism of rockburst prevention by drilling pressure relief: status-of-the-art and prospects

F Gong, Z He, X Si - Geomatics, Natural Hazards and Risk, 2022 - Taylor & Francis
High stress caused by excavation is an inevitable part of deep underground rock mass
engineering or mining process, which is the key to induce disasters such as rockbursts …