急倾斜上山眼坡度大,套修十分复杂。特别是压力大、煤质松软、老眼、老墟、冒落带或地质变化区域,对于立眼的套修,不仅操作困难,而且时常给安全造成极大的威胁。有时套眼一开头,20多圈(4～5m)垛眼一起下沉,过去采用过钢丝绳打摽、钉拉条等措施,虽然对于防止支架的脱落有效果,但是对于眼支架四周流煤如注、粉尘飞扬却无法控制,工人睁不开眼睛,不仅极不安 Urgent steep slope on the mountain slope, nesting is very complicated. In particular, the pressure, soft coal, the old eye, the old market, the caving zone or geological changes in the region, for the eye of the nesting, not only difficult to operate, and often pose a tremendous threat to safety. Occasionally, when the eye of the eye is over, more than 20 laps (4 ~ 5m) of dull eyes sink together. In the past, measures such as wire rope lashing and nailing are used to prevent the stent from falling off. However, Note, flying dust can not control, workers can not open their eyes, not only extremely uneasy