Year: 2025
Type: article
Abstract: Mining significantly affects the mechanical properties and structure of coal seams and increases the risk of disasters such as coal and gas outburst. Gas extraction is the key technology of disaster prevention and resource utilization. In this study, a damage elastoplastic constitutive model was developed, and the stress-strain change of rock was simulated by finite element program. Through the simulation of drilling gas extraction, it is found that the gas pressure increases with the increase of the distance from the center of the borehole, and the pressure drop decreases. These findings have practical significance for the prevention and control of gas disasters.
Source: Thermal Science
DOI: 10.2298/tsci2502411g
Authors: Xiang-He Gao, Feng Gao, Ning Zhang, Yue Niu, Kai-Feng Ren, Zheng-Min Yang
Language: English
Subfield: Ocean Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $161
OpenAlex ID: W4410824402