摘要
基于3107综采工作面回采期间,回风巷超前应力区底板出现底鼓、断裂现象,导致回风巷变形严重,移架困难等问题,对底鼓区传统治理技术存在的主要问题进行分析,提出“施工水力膨胀锚杆+安装L型钢棚+施工注浆锚索”联合治理技术,底鼓现象得到明显控制,底鼓量由原来的0.82 m降低为0.3 m以下,取得了实际应用成效。
Aiming at the ventilation roadway deformation and difficult advancing support caused by the floor heave and fracture in advanced stress region at 3107 fully-mechanized working face,the author proposes the combined treatment technology of constructing hydraulic expansive bolt and grouting anchor cable and installing L-typed steel scaffold,which can control floor heave remarkably reducing from original 0.82m to 0.3m.
作者
张建军
Zhang Jianjun(Xiaoxi Coal Industry Co.,Ltd.,Yangcheng Yangtai Group,Jincheng Shanxi 048000)
出处
《江西煤炭科技》
2021年第1期87-89,共3页
Jiangxi Coal Science & Technology
关键词
综采工作面
超前应力区
底鼓
治理技术
fully-mechanized working face
advanced stress region
floor heave
treatment technology
