Construction technology of water exploration and drainage in old goaf of Ⅱ1 coal seam Yungaishan mining field

Home>Articles>Construction technology of water exploration and drainage in old goaf of Ⅱ1 coal seam Yungaishan mining field

LIU Jian-kang

Keywords：soft thick coal seamcoal roadway raisegoaf waterwater exploration and drainage

Publication Date：2016-01-01

Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)

Pages：3( 56-58 )

PKUISTIC

ISSN：1671-0959

Year, Vol.(Issue)：2016,48(5)