【摘要】 文章对我国研制的几种煤巷临时支架及苏联、联邦德国煤巷掘进工作面临时支护设备的结构性能、使用情况做了介绍。更多还原

【Abstract】 This paper introduces severaltemporary supports in coal roadway developed byChina, and the structural characteristics and theuse of temporary supporting equipments of headingface in coal roadway developed by the USSR andthe FRG. From this, it can be considered that theheading supporting in coal roadway should haveshield function and self-advancing function, andsupporting equipments should have parallel motionmechanism with brackets.更多还原