Morphological evolution and flow conduction characteristics of fracture channels in fractured sandstone under cyclic loading and unloading

• Published in: International journal of mining science and technology Vol. 33; no. 12; pp. 1527 - 1540
• Main Authors: Zou, Quanle, Chen, Zihan, Zhan, Jinfei, Chen, Chunmei, Gao, Shikang, Kong, Fanjie, Xia, Xiaofeng
• Format: Journal Article
• Language: English
• Published: State Key Laboratory of Coal Mine Disaster Dynamics and Control,School of Resources and Safety Engineering,Chongqing University,Chongqing 400044,China%School of Mining,Guizhou University,Guiyang 550025,China 01.12.2023; Elsevier
• Subjects: CT imaging; Cyclic loading and unloading; Flow conductivity; Proportion of fracture channels; Three-dimensional reconstruction; CT imaging; Cyclic loading and unloading; Flow conductivity; Proportion of fracture channels; Three-dimensional reconstruction

In coal mining,rock strata are fractured under cyclic loading and unloading to form fracture channels.Fracture channels are the main flow narrows for gas.Therefore,expounding the flow conductivity of frac-ture channels in rocks on fluids is significant for gas flow in rock strata.In this regard,grad...