大倾角厚煤层综放工作面放煤工艺分析  

Analysis on Coal Caving Process in Fully Mechanized Caving Face of Large Dip Angle Thick Coal Seam

作　　者：魏志峰 WEI Zhifeng(Jinneng Holding Coal Industry Group Zheneng Majialiang Coal Industry Co.,Ltd.,Shuozhou 036000,Shanxi,China)

机构地区：[1]晋能控股煤业集团浙能麻家梁煤业有限公司,山西朔州036000

出　　处：《凿岩机械气动工具》2025年第1期74-76,共3页Rock Drilling Machinery & Pneumatic Tools

摘　　要：为分析大倾角工作面的放煤工艺及上方煤岩运移规律,文章以煤矿1号工作面为研究对象,采用FLAC 3D数值模拟技术,分析不同开采高度下工作面的应力分布与位移变化。研究结果显示,适度增加开采高度能有效促进上方煤岩的破裂过程,并对比了不同开采高度下煤岩的垮落特性。通过采用PFC2D模拟技术,确定在采高为4.0 m、放煤间隔为1.6 m的条件下,能实现较高的顶煤回收率,且操作流程更为便捷,从而为大倾角厚煤层的综合机械化开采提供了理论基础。In order to analyze the caving Process of large dip angle working face and the migration law of coal rock above,this paper takes No.1 working face in coal mine as the research object,and uses FLAC 3D numerical simulation technology to analyze the stress distribution and displacement change of working face under different mining heights.The results show that moderately increasing mining height can effectively promote the fracture process of the upper coal rock,and the caving characteristics of coal rock under different mining heights are compared.By using PFC2D simulation technology,it is determined that under the condition of 4.0 m mining height and 1.6 m caving interval,higher top coal recovery rate can be achieved,and the operation process is more convenient,which provides a theoretical basis for the fully mechanized mining of large dip angle thick coal seam.

关 键 词：大倾角厚煤层 放煤工艺 煤岩运移规律 

分 类 号：TD823[矿业工程—煤矿开采]