建井技术
建井技術
건정기술
2014年
2期
4-5,9
,共3页
巷道工作面%突水淹井%先堵后排%挡水墙%钻孔
巷道工作麵%突水淹井%先堵後排%擋水牆%鑽孔
항도공작면%돌수엄정%선도후배%당수장%찬공
mine roadway heading face%mine water inrush and flooded%first water sealing and then wa-ter drainage%water retaining wall%borehole
马鞭山铁矿风井巷道掘进中,工作面强突水,突水量800m3/h左右,造成淹井后,采用先排后堵的方案治理,无法达到排水目标。后经专家论证,决定采用先堵后排的方案治理。施工时,从地面向井下巷道施工2个钻孔,分别用于构筑挡水墙和注浆充填封堵。施工后,所形成的挡水墙耐压较好,浆液对导水通道充填封堵较好,达到了预期效果。2013年6月,矿上顺利将矿井水排掉,矿井顺利恢复生产。
馬鞭山鐵礦風井巷道掘進中,工作麵彊突水,突水量800m3/h左右,造成淹井後,採用先排後堵的方案治理,無法達到排水目標。後經專傢論證,決定採用先堵後排的方案治理。施工時,從地麵嚮井下巷道施工2箇鑽孔,分彆用于構築擋水牆和註漿充填封堵。施工後,所形成的擋水牆耐壓較好,漿液對導水通道充填封堵較好,達到瞭預期效果。2013年6月,礦上順利將礦井水排掉,礦井順利恢複生產。
마편산철광풍정항도굴진중,공작면강돌수,돌수량800m3/h좌우,조성엄정후,채용선배후도적방안치리,무법체도배수목표。후경전가론증,결정채용선도후배적방안치리。시공시,종지면향정하항도시공2개찬공,분별용우구축당수장화주장충전봉도。시공후,소형성적당수장내압교호,장액대도수통도충전봉도교호,체도료예기효과。2013년6월,광상순리장광정수배도,광정순리회복생산。
During a mine roadway heading in a Mine Ventilation Shaft of Mabianshan Iron Mine ,a mine strong water inrush was occurred in the heading face with a water inrush volume about 800m3/h.Thus the mine was flooded ,a control plan of a first water drainage and then water sealing was applied and the water drainage target was hard to be reached.After the expert argumentation conducted ,a control plan of a first water sealing and then water drainage was determined and applied.During the construc-tion ,two boreholes were drilled from the surface ground to the mine roadway in the underground mine and were applied individually to build a water retaining wall and to make the grouting ,backfill and sealing operations.After the construction ,the water retaining wall formed could have good pressure resistances ,the grout could have good backfill and sealing to the water flow channel with the predicted effect.In June ,2013 ,the inrush water in the mine was successfully drained off and the mine was suc-cessfully restored in production.