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一种新型的冲击地压防治技术——煤巷防冲网技术在北徐楼煤矿西风井3t煤掘进工作面投人使用。该矿西风井全煤巷道掘进时由于受到采深的影响,极易产生冲击地压,锚饼、锚索托盘容易造成脱落,为了保证现场施工人员的安全,该矿推广了一种新的防冲措施——煤巷防冲网。该防冲网是用长3m、宽lm的菱形
A new type of rock burst prevention and control technology - seam gateway anti-scouring net technology is put into use in the 3t coal-mining face of Xifujing coal mine in Beixu building. Due to the influence of mining depth, it is easy to produce impact pressure, anchoring cake and anchor tray which will easily come off. In order to ensure the safety of on-site construction workers, the mine promotes a new type of defense system Red measures - Coal Lane anti-punching network. The anti-net is a long 3m, wide lm diamond