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北徐楼煤矿推行煤巷防冲网新技术近日,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3下煤掘进工作面投入使用。该矿西风井全煤巷道掘进时由于受到采深的影响,巷道极易发生煤炮,产生冲击地压,锚杆、锚索常伴有被冲断的现象,锚饼、锚索托盘容易造成脱落,存在一定的不安全隐患。为了保证现场施工人员的安全,该矿与北京科技大学等科研院校紧密合作,引进推广了一种新的防冲措施——煤巷防冲网。该防冲网是用长3米、宽1米的菱形网制成,顶板支护完毕后,及时将菱形网覆盖在整个顶板,可以把锚饼、锚索托盘牢牢的抵住,使顶板形成一个
Recently, a new type of technology of rock burst prevention and control - the technology of coal gateway anti-scouring net put into use in the coal heading face of Xifeng Well 3 in North Xuelou Coal Mine. Due to the influence of mining depth, the coal mine gun is prone to occur in the roadway, impact pressure is generated. The bolt and anchor cable are always punched. The anchor cake and the anchor cable tray are easy to cause Fall off, there are some unsafe hidden dangers. In order to ensure the safety of on-site construction workers, the mine worked closely with research institutes and universities such as Beijing University of Science and Technology to introduce and popularize a new anti-scouring measure - coal lane anti-scouring net. The anti-counterfeit net is made of diamond net which is 3 meters in length and 1 meter in width. After the support of the top plate is finished, the rhombus net is covered over the whole top plate in time to firmly hold the anchor cake and the anchor wire tray so that the top plate forming one