近几年来,锚杆支架在我国煤炭工业中获得了较大的发展,它的良好的技术经济效果日益引起人们广泛的重视. 锚杆支架的作用原理不同于支撑式支架(木棚、钢筋混凝土棚、金属棚等).支撑式支架都是利用构件本身的强度来承受围岩的压力、阻止巷道围岩残余变形的发展.实际上棚子支上后,由于棚子与顶板间间隙的存在、支撑构件更容易变形等原因,棚子只 In recent years, the anchor bracket has gained great development in China’s coal industry, and its good technical and economic effects have drawn increasing attention in recent years. The principle of the anchor bracket is different from that of the support bracket (wooden shed, reinforced concrete Sheds, metal sheds, etc.) The supporting brackets use the strength of the component itself to bear the pressure of the surrounding rock and prevent the development of the residual deformation of the surrounding rock of the roadway.In fact, after the shed is supported, due to the existence of the gap between the shed and the roof, Component deformation and other reasons, shed only