坚硬顶板煤层群开采留设小煤柱支护技术研究

81215工作面留设小煤柱开采巷道布置设计方案和技术改造,对搞好大、中、小接续,薄厚煤层合理搭配,提高煤炭回采率,确保矿井持续稳定生产起着重要作用。为此,对81215工作面从计划、设计、准备到生产管理全过程进行了科学技术论证并确定了施工方案,通过工程实践证明,取得了良好的效果,为今后的采掘布局和生产技术管理奠定了基础并提供了借鉴。

On the Small Coal Pillar Set Support Technology of Hard Roof Coal Seams Mining

The design scheme and technical transformation of small coal pillar setting mining roadway layout of 81215 working face play an important role in dealing with large, medium and small spicing well, reasonable collocation of thin and thick coal seam, improving the coal recovery rate and ensuring the steady production. Therefore, the science and technology are demonstrated and the construction plan is determined for 81215 working face from planning, designing, preparing to production management the whole process. The engineering practice proves that good effect have been achieved, which lays the foundation and provides the reference for the future mining layout and production technology management.