采用支架法掘进天井,要在天井中凿梁窝、架设支架,很困难,这是支架法掘进天井速度不高的一个重要原因和突出问题。我矿采用支架法掘进采场脉内天井。由于矿石十分坚硬,用手工或风镐很难凿出合格的梁窝。后来,试验过打浅孔炸出梁窝的办法,可是工效不高且返工多,经常影响正常掘进循环。 It is very difficult to excavate the pothole by using the scaffolding method, and it is very difficult to set up the scaffolding beam in the pothole. This is an important reason and the outstanding problem that the scaffold method is not advanced in speeding the pits. I mine support method mining tunnel internal courtyard. As the ore is very hard, it is hard to dig a qualified beam nest by hand or a pick. Later, the trial of playing shallow hole blasting beam nest approach, but inefficient and rework more often affect the normal driving cycle.