CAJ | 학술논문

　　针对南桐矿区东林煤矿扭转构造带煤与瓦斯突出灾害特征及非接触式连续预测技术研究不足的问题,采用实验室研究、现场考察等手段,对东林煤矿扭转构造带煤与瓦斯突出灾害特征及煤与瓦斯突出声发射预测技术进行了研究,结果表明：东林煤矿扭转构造形成过程中的挤压作用、剪切滑动作用造成了煤层厚度急剧变化及构造应力集中,使得煤与瓦斯突出灾害频繁发生,钻屑量指标严重超标,表现出以应力为主导的特征。采用声发射连续预测技术结合常规钻屑指标法预测技术,对东林煤矿煤与瓦斯突出灾害预测指标进行了研究,确定出东林煤矿煤与瓦斯突出预测地应力指标钻屑量临界值为15 kg/m,声发射能量指标临界值为20。
　　침대남동광구동림매광뉴전구조대매여와사돌출재해특정급비접촉식련속예측기술연구불족적문제,채용실험실연구、현장고찰등수단,대동림매광뉴전구조대매여와사돌출재해특정급매여와사돌출성발사예측기술진행료연구,결과표명：동림매광뉴전구조형성과정중적제압작용、전절활동작용조성료매층후도급극변화급구조응력집중,사득매여와사돌출재해빈번발생,찬설량지표엄중초표,표현출이응력위주도적특정。채용성발사련속예측기술결합상규찬설지표법예측기술,대동림매광매여와사돌출재해예측지표진행료연구,학정출동림매광매여와사돌출예측지응력지표찬설량림계치위15 kg/m,성발사능량지표림계치위20。
To counter the insufficient research on the disaster characteristics of coal and gas outburst in the torsion structural zone and the non-contact continuous prediction technology in Donglin Mine of Nantong Coal Mining Area,research was carried out on the disaster characteristics of coal and gas outburst in the torsion structural zone and the acoustic emission prediction technology of coal and gas outburst through laboratory study and on-site investigation. The results indicated that the squeezing action and shearing and sliding action in the formation process of the torsion structural zone in Donglin Mine caused the sharp change of the seam thickness and the concentration of structural stress,the frequent occurrence of coal and gas outbursts and serous overrun of cuttings index,and showed the characteristics dominated by the stress. In addition, study was made on the disaster prediction indicators of coal and gas outburst in Donglin Mine by using acoustic emission prediction technology and the conventional cuttings index prediction technology,it was determined that the critical value of cuttings volume for coal and gas outburst was 15kg/m and that of the energy index of acoustic emission was 20.