浅谈井巷的维护方式

Discussion on Roadway Maintenance Way

介绍了井巷压力性质及产生原因,并根据具体情况分析了影响井巷稳定性的主要因素:围岩的性质、巷道位置、巷道轴线方向、断面尺寸、掘进破岩方法、掘进时间与沿空护巷、掘进方案。论述了棚式支护、拱碹支护、锚喷支护及锚杆、挂网、锚索、喷浆联合支护。并举例说明锚杆、挂网、锚索、喷浆联合支护的综合应用。

Introduces the nature and causes of roadway pressure, and according to＇the specific circumstances analyses the main factors of impact the stability of roadway ： the nature of rock, tunnel position, tunnel axis direction, cross- section size, tunneling rock crack methods, tunneling time and tunneling program. Discusses the shed support, concrete arch support, bolting ＆ cement spraying support, and bolting, hanging net, anchor rope, shotcreting combined support. And illustrates the comprehensive application of the combined support.