Zobrazeno 1 - 1
of 1
pro vyhledávání: '"strong roof and weak wall"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 8, Pp 124-132 (2024)
Aiming at the difficulties of large plastic failure range of surrounding rock and insufficient strength of bolt support system of the “strong roof and weak side” semi coal-rock roadway, taking 8# coal seam mining roadway of a certain mine as the
Externí odkaz:
https://doaj.org/article/f23daad5b7c8493f802a79769aaa5275
