摘要
针对千秋煤矿暗斜井穿岩巷道的特点、采动对暗斜井的影响状况 ,阐述了暗斜井在保护煤柱固定支承压力作用下 ,利用拱形可缩性金属支架、锚喷网支护进行一、二次大修的过程。利用围岩有效载荷系数 ,解释了暗斜井变形破坏机理 ,最后指出了大面积卸压是保持暗斜井长期稳定的经济有效方法 。
Based on the characteristics of cruts of blind incline shafts of Q ianqiu mine and the affect of mining on the blind incline shafts, the 1st and 2n d major maintenances performed using yielding metal support and bolting and shot creting wire mesh by the effect of their safety pillar's abutment pressure are d escribed. The mechanism of deformation failure of blind incline shafts is explai ned using effective load coefficients of surrounding rock. It is pointed out tha t large area destressing is an economic and effective method, which can keep bl ind incline shafts in stable state for long time and give destressing mining ran ge.
出处
《矿冶工程》
CAS
CSCD
北大核心
2003年第2期20-22,共3页
Mining and Metallurgical Engineering
