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本文对三软巷道工作面回风巷围岩支架破坏情况进行归纳分析 ,提出 1 1 #工字钢梯形棚全强度支护法 ,经过计算和实验验证 ,该方法能充分利用支护构件材料的最大承载能力 ,将围岩位移约束在该种支护构件材料所能达到的最小值。
This paper summarizes the failure of the surrounding rock support in the return airway of the three soft alluvial roadway and puts forward the full strength support method of the 11 # I-beam trapezoidal shed. Through calculation and experiment, this method can make full use of the maximum Carrying capacity, the displacement of the surrounding rock constrained by the kind of support material can reach the minimum value.