In-situ observation on the floor-connected crack field and its effects on methane extraction
QI Qing-xin
JI Wen-bo
YUAN Ji-hong
CHENG Zhi-heng
LIU Xiao-gang
Keywords：connected crackmethane extractiontracer gasmethane transportclose seamsmining of protecting seam
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)