摘要
针对大柳塔煤矿2-2煤深部区面临着浅埋深、薄基岩且上覆有砂砾含水层的回采条件,本文以22618综采工作面回采为例,通过支架合理选型、采取泄放含水层水和利用马丽散对基岩和砂砾层进行加固的技术以防溃水溃砂、在回采期间采取"十到位"的顶板管控措施等技术和手段,实现了安全回采,提高了回采率,为神东矿区相似条件下的回采提供了技术借鉴。
In Daliuta Mine,the deep area of 2- 2seam has the mining conditions of shallow buried,thin bedrock（ the average thickness is less than 15 m,local is less than 6m） and water-rich aquifer. Taking №22618 fully mechanized mining face as an example,by taking the measures,such as rational selecting hydraulic supports,discharging the aquifer water,reinforcing bedrock by Malisan and adopting ＂ten measures＂of roof control,safety mining is achieved and recovery rate is improved. The measures can provides technical reference for similar conditions in Shendong mining area.
出处
《陕西煤炭》
2014年第6期63-65,68,共4页
Shaanxi Coal
关键词
浅埋
薄基岩
长壁综采
疏放水
基岩加固
shallow seam
thin bedrock
fully mechanized mining
drainage water
rock reinforcement
