摘要
针对1102运输巷掘进期间煤壁出现严重破碎、片帮现象,五里堠煤矿提出了"注浆加固+迈步式桁架锚杆支护+矩形型钢棚"等联合控制技术,巷帮最大片帮深度控制0.3 m以下,最大片帮高度控制0.5 m以下,取得了显著应用成效。
In view of the serious broken coal wall and sheet side phenomenon during the excavation of the 1102 transport roadway,the joint control techniques such as "grouting reinforcement + stepping truss bolt support + rectangular steel shed" were put forward in Wulihou Coal Mine.The maximum depth of roadway side is controlled below 0.3 m and the maximum height of roadway side is controlled below 0.5 m,which has achieved remarkable application results.
作者
张楠
Zhang Nan(Zuoquan Wulihou Coal Industry Co.,Ltd.,Shanxi Lu'an Group,Shanxi Jinzhong 032600)
出处
《山东煤炭科技》
2021年第1期75-76,79,共3页
Shandong Coal Science and Technology
关键词
掘进
片帮
治理
excavation
coal wall spalling
treatment
