摘要
为了提高无煤柱回采工作面沿空留巷顶板稳定性,保证工作面安全高效回采,对8304无煤柱工作面沿空留巷段采取爆破切顶施工工艺,以及“恒阻锚索+支设T型钢棚+迈步式W型锚索吊棚”联合支护措施,控制了沿空留巷围岩稳定性,保证了安全生产。
In order to improve the stability of the roof of the gob side entry in the face without coal pillar and ensure the safe and efficient mining of the face,the blasting and roof cutting construction technology and the combined support measures of"constant resistance anchor cable+T-shaped steel shed+walking W-shaped anchor cable hanging shed"are adopted in the 8304 face without coal pillar to control the stability of the surrounding rock of the gob side entry and ensure the safe production.
作者
刘洋
Liu Yang(Yanya Coal Industry Company,Datong Coal Mine Group,Shanxi Datong 037001)
出处
《山东煤炭科技》
2020年第4期77-78,82,共3页
Shandong Coal Science and Technology
关键词
综采
切顶
支护
留巷
fully mechanized mining
top cutting
support
gob side entry retaining
