Weakening treatment technology of hard roof above fully-mechanized coal mining face under permafrost overlying strata
Huang Qingguo
Xiao Hongtian
Zhao Jun
Keywords：permafrost overburden stratahard roofforced roof cavingblastingrock strata movement
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)