摘要
为研究松软特厚煤层厚硬顶板条件下综放工作面顶板压力特征,以中煤华昱能源山西五家沟煤矿的5210综放面为例,结合现场矿压观测数据,分析了该工作面支架载荷分布特性。研究发现,支架载荷沿工作面倾向分布起伏较大,且兼具一定的随机性与规律性,工作面来压步距、来压强度、来压持续步距并不稳定,工作面来压具有典型的大小周期特性。
In order to investigate the underground stress in the coal face,analyzed the loading distribution of supports in coal face 5210 in Wujiagou coal mine through the monitoring data of mine stress. The study found that the support load along the working face vary considerably with randonmess and regularity ,reflecting in the instability of the weighting interval ,weighting intensity,weighting continuous steps. The periodic stress in the coal face is characterized by various weighting intervals.
出处
《煤炭技术》
CAS
北大核心
2017年第3期21-23,共3页
Coal Technology
关键词
松软特厚煤层
厚硬顶板
矿山压力
suit and super thick coal seam
thick-hard roof
mine pressure
