Gray characteristics analysis of strain field of coal and rock bodies around boreholes during progressive damage based on digital image

X Ji, T Zhang, B Ji, L Zhang, M Pang, H Pan… - Rock Mechanics and Rock …, 2023 - Springer
Gas extraction borehole is one of the important means to solve the mine gas disaster.
However, the deformation and damage of coal and rock bodies around borehole will …

Influence of particle size on pore structure and multifractal characteristics in coal using low-pressure gas adsorption

S Zhang, H Liu, C Wu, Z ** - Journal of Petroleum Science and …, 2022 - Elsevier
Understanding pore heterogeneity is essential to obtain insights into the gas storage,
transport, and recovery from coal. The pore structure in analytical sample particles of …

Transition of dominated factors in coal seam gas migration: Thermo-hydro-mechanical modeling and analysis

K Wang, Y Wang, C Xu, Z Xu, H Guo, Y Liu… - International Journal of …, 2025 - Elsevier
Gas extraction by boreholes is one of the most effective means to eliminate gas related
disasters and utilize gas resources. Due to the complexity of coal matrix and fracture …

Experimental investigation of flow regime transition characteristics of fractured coal bodies around gas extraction boreholes

M Pang, H Pan, B Ji, H Zhang, T Zhang - Energy, 2023 - Elsevier
The accurate determination of the seepage flow pattern of crushed coal around the
perimeter of the borehole is an important technical parameter used in the determination of …

Effect of particle size on CO adsorption and thermodynamic analysis

D Zhang, X Cen, H Wen, H Wang, J Deng… - Journal of Loss …, 2023 - Elsevier
The liquid nitrogen adsorption method was used to characterize the pore structure of non-
cohesive coal in the 061,404 working face of the Lingxin coal mine. The amount of specific …

Comprehensive evaluation and interpretation of mercury intrusion porosimetry data of coals based on fractal theory, Tait equation and matrix compressibility

Q Yang, J Xue, W Li, X Du, Q Ma, K Zhan, Z Chen - Fuel, 2021 - Elsevier
Accurate characterization of coal pore structure is vital for understanding the mechanism of
gas storage and migration. As an effective method for pore evaluation, mercury intrusion …

Investigation of the crack evolution characteristics of coal and rock bodies around boreholes during progressive damage based on stress threshold values

T Zhang, X Ji, M Pang, L Zhang, B Ji, W Yang… - Theoretical and Applied …, 2023 - Elsevier
The stress threshold is a key stress indicator of crack evolution of coal and rock bodies
around boreholes during progressive damage. To investigate the crack evolution …

Study on the evolution of pore structure and desorption characteristics of crushed tectonic coals under the different conditions of unloading confining pressure

J Jiang, Y Huang, Y Cheng, C Wang, S Zhang - Powder Technology, 2023 - Elsevier
Rapid pressure relief has an important influence on the continuous development of coal and
gas outbursts. The particle size distribution of crushed tectonic coals under the different …

[HTML][HTML] Multi-Field Coupling Models of Coal and Gas and Their Engineering Applications to CBM in Deep Seams: A Review

X Ma, A Zhou, X Cheng, C Cheng, W Zhao - Energies, 2024 - mdpi.com
In the process of deep coal seam mining, the problem of coal–gas compound disasters is
increasingly prominent, with the safe and efficient extraction of gas serving as the key to …