摘要
和尚嘴煤矿14号煤层胶带大巷掘进过程中的主要风险为上部小窑旧巷;为保障该巷道安全掘进,拟定采用物探结合钻探的超前勘探、采取对小窑旧巷的区域注浆填充、增加U型钢支护等技术措施;对该大巷235~260 m区间的上部旧巷实施了上述治理措施后,掘进已安全通过该区域;应用表明,大巷支护效果良好。
To guarantee the safe excavation of belt main roadway in No.14 coal seam in Heshangzui Colliery,the paper presents the technical measures of filling by grouting,adding U-typed-steel support in small coalmines and old roadway in 235~260 m interval of main roadway,whose application results show that the excavation passes safely through the area with good support effects.
作者
高飞
Gao Fei(Heshangzui Coal Industry Co.,Ltd.,Datong,Shanxi 037027)
出处
《江西煤炭科技》
2024年第1期67-69,共3页
Jiangxi Coal Science & Technology
关键词
巷道掘进
通过旧巷区
超前勘探
注浆充填
加强支护
roadway excavation
through the old alley area
advanced exploration
flling by grouting
support reinforcement
