【摘要】 本文以焦煤集团九里山矿14061综采工作面液压支架初撑力现场实测资料为基础,对初撑力实际情况、初撑力与工作阻力关系、初撑力对不稳定顶板的影响进行了研究,分析了该工作面支架初撑力低的主要原因,阐述了提高初撑力的重要性,并提出了提高支架初撑力的方法。更多还原

【Abstract】 Based on the actual measurement data for setting load of powered supports in No. 14061 fully mechanized coal face of Jiulishan Coal Mine, Jiaozuo Coal Mining Group, the factual status of the setting load, the relation between the setting load and the working resistance, the influence of the setting load on the instable roof are studied in the paper. The importance to improve the setting load is explained. The main matters which lower the setting load were found out and the methods to improve the setting load were also put forward.更多还原