煤矿井下钻机钻孔与机械伤害事故原因分析及对策

Reasons and countermeasures for drilling and mechanical injury accident of drilling rig in underground coal mine

在深入分析煤矿井下钻机瓦斯抽采钻孔施工中可能发生的卡钻顶钻、钻杆扭断、偏斜、串孔、涌水和喷孔等主要常见钻孔事故现象、原因的基础上,给出了指导性处理方法,同时分析钻机施工中7种常见机械伤害事故发生的原因,提出预防措施。该研究对煤矿井下钻机瓦斯抽采钻孔安全施工具有一定指导意义。

Through in-depth analysis of phenomenon and reasons for common drilling accidents in gas drainage drilling construction of underground coal mines, such as drill sticking and pushing, drill pipe torsion fracture, deviation,connected pores,water gushing and orifice,guidance processing method was proposed,the reasons for seven rigs common mechanical injury accidents in drilling construction were analyzed,preventive measures were proposed.