In view of the problems occurring in trapezoidal support used in coal seam gateway, a novel small-curvature arch support for mining engineering is presented.
In view of the problems occurring in trapezoidal support used in coal seam gateway, a novel small-curvature arch support for mining engineering is presented.
摘要针对煤层顺槽梯形支架存在的问题，提出一种新型结构的小曲率拱型支架。