薄煤层高档工作面单体柱钻底问题的研究

Study on the Problem of Bottom-drilling of the Single-column in the High-grade Working Face of the Thin Coal Seam

对晋普山煤矿9#煤顶板压力大、底板松软、支柱钻底严重、初撑力达不到标准化的问题进行了研究,提出了采用MC尼龙柱鞋进行试验的建议,并证明了它对解决薄煤层高档工作面单体柱钻底的问题有较好的效果。

This paper researches on the problems in the 9^# coal seam of Jinpushan Coalmine including the heavy pressure of the roof, the soft bottom, the serious bottom-drilling of the single-column and the less-normalized support force, puts forward the suggestion on using MC nylon colonnade carries to do the test, and testifies that it has good effect on solving the problem of bottom-drilling of the single-column in the high-grade working face of the thin coal seam