摘要
分析了切眼宽度和顶煤厚度对端头悬顶稳定性的影响,提出了以螺纹钢锚杆锚固为“小结构”、以桁架锚索锚固为“大结构”的支护方式,并在云冈矿4101工作面进行了实践应用,保证了大断面端头悬顶的稳定性。
This paper analyzed the influence of the width of the incision and the thickness of the top coal on the stability of the end suspension roof, proposed the support method of taking the deformed steel bars bolt anchoring as the "small structure" and truss anchor wire anchoring as the "large structure". It has been applied in the 4101 working face of Yungang Coal Mine to ensure the stability of the large-section end suspension.
作者
杨治军
YANG Zhijun(Yungang Coal Mine, Datong Coal Mine Group, Datong 037017, Shanxi, China)
出处
《能源与节能》
2019年第6期169-170,192,共3页
Energy and Energy Conservation
关键词
大断面
端头悬顶
支护技术
桁架锚索
large-section
end suspension
support technology
truss anchor wire
