摘要
沿空留巷的推广应用,可以回收传统工艺留设的区段煤柱,提高资源回收率。大兴煤矿2202工作面沿空留巷,北采用锚索+工字钢梁+单体支柱联合支护。应用结果表明,该施工方式有利于沿空留巷的稳定,有利于施工安全,提高了经济和社会效益。
The application of gob side entry retaining can recover the section coal pillars reserved by using traditional technology and improve the resource recovery rate.In No.202 working face of Daxing Coal Mine,the roadway is left along the goaf,which is supported by combining anchor cable,I-shaped steel beam and single pillar.The application results show that the construction method is conducive to the stability of gob side entry,construction safety and the increase of economic and social benefits.
作者
刘强
孔凡贵
张超
Liu Qiang;Kong Fan-gui;Zhang Chao(Zaozhuang Daxing Mining Co.,Ltd.,Shandong Zaozhuang 277319)
出处
《山东煤炭科技》
2020年第2期22-23,共2页
Shandong Coal Science and Technology
关键词
沿空留巷
联合支护
技术
gob side entry retaining
combined support
technology
