裝配式混凝土支架在我國許多礦山已經使用,例如焦作煤礦、萍鄉煤礦等,而且在某些金屬礦山也正在开始推廣;可是这种支架巷道的通風摩擦阻力系数α值, 尚未測定研究出來。在某些地压較大的巷道中也已經使用了加固木棚支架,而它的通風摩擦阻力系数α值,过去都是按棚子巷道的α值增加一个百分数來求得。因此研究这兩种支架巷道的摩擦阻力系数α值就有很大的現实意义:一方面,研究成果能供設計机关和礦山現場在進行通風設計时 Assembled concrete brackets have been used in many mines in our country, such as Jiaozuo Coal Mine and Pingxiang Coal Mine, etc., and some metal mines are also beginning to be popularized. However, the α value of the ventilation frictional drag coefficient of this coal mine roadway has not been determined yet. In certain large pressure roadway has also been used to strengthen the wood shed bracket, and its ventilation friction coefficient α value, in the past are according to shed shed α value increased by a percentage. Therefore, it is of great practical significance to study the α value of the frictional drag coefficient of the two kinds of support roadway: on the one hand, the research results can be used in the ventilation design of design agencies and mine sites