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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 study the roof pressure characteristics of fully mechanized caving face with thick and hard roof in soft and thick coal seam, take 5210 fully mechanized top coal caving face of Huayu Energy in Shanxi Huayu Coal Mine of Shanxi Province as an example. Combined with the rock pressure observation data, Scaffold load distribution characteristics. The study found that the load of the stent is more prone to fluctuate along the working face and has some randomness and regularity. The working face to step pressure, to the pressure intensity, the pressure to continue the pace is not stable, Typical size cycle characteristics.