Zobrazeno 1 - 1
of 1
pro vyhledávání: '"deformation and failure of roadway"'
Publikováno v:
Gong-kuang zidonghua, Vol 46, Iss 10, Pp 80-86 (2020)
In view of problems of deep roadway with composite roof, such as easily roof falling, large deformation and difficult support, taking 53182 roadway of Chengzhuang Coal Mine of Jincheng Blue Flame Coal Industry Co., Ltd. as research object, deformatio
Externí odkaz:
https://doaj.org/article/1b5e8e6d8a4f4f3b8df9bdfdf83c7129
