摘要
唐山矿业分公司6020工作面回风巷沿软岩顶板掘进,采用了锚杆联合支护方式,介绍了矩形巷道和拱形巷道联合支护参数的选择及支护效果。
The combined bolting system is used for protecting the air-return way of Face 6020 of Tangshan Branch Mining Co. driven along the roof in soft rock. An introduction is made to the selection of parameters of this kind of support when it is used in rectangular or circular workings.
出处
《水力采煤与管道运输》
2008年第3期8-10,共3页
Hydraulic Coal Mining & Pipeline Transportation
