过煤柱巷道支护方案优化分析研究

Research on Optimization Analysis of Crossing Coal Pillar Roadway Supporting Scheme

基于过煤柱巷道围岩稳定性的维护问题,分别从煤柱影响范围内外两个区域给出了围岩稳定性的维护方案,并针对过煤柱巷道围岩变形的特殊问题,提出在原有支护基础上,利用高强蛇形锚杆与特殊钢带及金属网补强维护。实践表明:该方案的应用无论从经济上还是安全上均取得了较好的效果,为今后类似条件下巷道支护积累了经验,值得推广应用。

Based on maintenance problem of crossing coal pillar roadway surrounding rock stability, respectively gives the maintenance programs of surrounding rock stability from two regions within and outside influence scope of coal pillar. Aiming at the special problems of crossing coal pillar roadway surrounding rock deformation, puts forward on the basis of the original support using high strength serpentine bolt and special steel strip and metal net reinforcing maintenance. The practice shows that the application of the scheme has achieved good results in both economy and safety. It accumulates experience for roadway supporting under the similar condition in the future, and it is worthy of popularization and application.