摘要
针对2101轨道巷留顶煤掘进、过断层破碎带,传统锚网索联合支护效果差,根据实际情况采用注浆锚杆支护技术,通过一个月应用效果来看,注浆锚杆支护提高了锚杆锚固质量,失效率降低至3%以下,大大提高了破碎顶板稳定性,应用成效显著。
Aiming at the poor effect of traditional bolt-net-cable combined support in 2101 track roadway leaving top coal for excavation and crossing fault fracture zone,the author puts forward the grouting bolt support technology according to the actual situation,which improves anchoring quality of the bolt,reduces failure rate to less than 3%,greatly improves the stability of the broken roof,and proves remarkable application effect.
作者
吴波
Wu bo(Zuoquan Wulihou Coal Industry Co.,Ltd.,Shanxi Luan Group,Jinzhong,Shanxi 032600)
出处
《江西煤炭科技》
2021年第2期21-23,共3页
Jiangxi Coal Science & Technology
