In-situ observation and modeling approach to evolution of pore-fracture structure in coal

• Published in: International journal of mining science and technology Vol. 33; no. 3; pp. 265 - 274
• Main Authors: Zhou, Hongwei, Liu, Zelin, Zhao, Jiawei, Chen, Bocen, Li, Xiangnan, Zhong, Jiangcheng
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.03.2023; Elsevier
• Subjects: Compressibility; Fractional derivative; Nuclear magnetic resonance imaging; Pore-fracture structure; Stress sensitivity; Stress sensitivity; Compressibility; Pore-fracture structure; Nuclear magnetic resonance imaging; Fractional derivative

The characterisation of the pore-fracture structure (PFS) and its evolution in coal during mining are essential for preventing gas outbursts and improving gas extraction efficiency. In this study, the evolution of the PFS in coal samples under the condition of mining stress was directly captured in...