坚硬顶板大倾角软煤综采安全技术探析  

Discussion on Fully-mechanized Mining Safety Technology for Hard-roof Deeply-inclined Soft Coal Seam

作　　者：时昌鹏 Shi Changpeng(Lanhua Tongbao Coal Industry Co.,Ltd.,Gaoping,Shanxi 043000)

机构地区：[1]山西兰花同宝煤业有限公司,山西高平048400

出　　处：《江西煤炭科技》2021年第4期4-6,共3页Jiangxi Coal Science & Technology

摘　　要：同宝煤业15105综采工作面开采的15号煤层为典型的坚硬顶板大倾角软煤,工作面回采过程中面临煤壁片帮、顶板冒落以及支架失稳等风险。为此,提出使用深孔预裂爆破弱化顶板,注浆提高煤体承载能力及稳定性,支架顶梁铺设金属网及工字钢梁过煤体破碎区,采取严格控制采高等措施提高支架稳定性。现场应用表明,工作面回采期间顶板冒落、煤壁片帮以及支架失稳等问题基本得以解决,取得较好应用成果。Aiming at the rib spalling,roof caving and support instability in mining No.15 coal seam-typical hard roof deeply-inclined coal seam-at 15105 fully-mechanized mining face of Tongbao Coal Industry Co.,Ltd.,the author proposes the fully-mechanized mining safety technology of weakening roof by pre-splitting blasting,improving the bearing capacity and stability of coal body by grouting,crossing the fracture zone of coal body by laying metal net and I-steel beam in roof beam and improving the support stability by strictly controlling the mining height,which can solve the problems of roof,caving rib spalling and support instability in mining with good application effect.

关 键 词：坚硬顶板 大倾角煤层 预裂爆破弱化顶板 片帮冒顶 支架失稳 

分 类 号：TD823.213[矿业工程—煤矿开采]