综放工作面初采深孔预裂爆破技术应用与研究  

Application and research of pre-splitting deep-hole presplit blasting technology in fully mechanized caving face

作　　者：赵鹏 ZHAO Peng(Guandi Mine of Xishan Coal and Electricity Group,Taiyuan030022,China)

机构地区：[1]西山煤电集团官地矿,山西太原030022

出　　处：《煤矿现代化》2021年第1期84-86,共3页Coal Mine Modernization

摘　　要：本文针对综放工作面初采期间顶煤冒落不及时、采出率不高且遗落采空区的大量顶煤还有自燃发火隐患等问题,将深孔预裂爆破技术应用于官地煤矿3407综放工作面初采期间,通过实际应用及矿压监测表明,达到了弱化顶煤顶板、降低来压强度、减少顶煤损失、提高经济效益、保证安全生产的目的,对该煤矿其他综放工作面具有积极的推广意义和经济技术价值。In view of the problems such as untimely caving of top coal,low recovery rate,large amount of top coal left in goaf and hidden danger of spontaneous combustion,this paper applies the deep hole presplitting blasting technology to the initial mining of 3407 fully mechanized caving face in a coal mine.Through practical application and monitoring of mine pressure,it shows that the roof of top coal has been weakened,the strength of incoming pressure has been reduced,the loss of top coal has been reduced and the economy has been improved The purpose of economic benefit and safety production is of positive significance and economic and technical value for the promotion of other fully mechanized caving masks in the coal mine.

关 键 词：综初采期间 深孔预裂爆破 初次来压步距 

分 类 号：TD824[矿业工程—煤矿开采]