论文部分内容阅读
根据公务素地区16#煤层赋存条件,运用工程类比法和数值计算法给出16#煤层顺槽的基本支护方式和支护参数,并将其应用于公务素煤矿二号井北一综放面回风顺槽和相邻工作面运输顺槽围岩稳定性控制的工程实践中。结果表明,所设计的锚固参数可确保综放面采动过程中上下顺槽的稳固性,且预掘巷道时上下工作面顺槽煤柱宽度可由20 m减小到15 m。
According to the occurrence conditions of 16 # coal seam in Gongsulu region, the basic supporting methods and supporting parameters of No. 16 coal seam are given by engineering analogy method and numerical calculation method. Put the surface back to the wind and the adjacent face of the transport face rock stability control engineering practice. The results show that the designed anchoring parameters can ensure the stability of the upper and lower troughs in the fully mechanized top coal caving mining face, and the width of the trough pillars in the upper and lower working face can be reduced from 20 m to 15 m at the time of preloading.