关键词: 近距离, 上行开采, 下部工作面, 移动盆地, 外错式

Abstract: In order to study the rationality of the layout of the roadway in the working face during upstream mining, this paper takes the upward mining of the 6202E working face of the Zhai Town coal mine as the background of the engineering research. Through theoretical analysis and on-site pressure observation, the influence area and degree of the upper working face on the mining of the lower working face are obtained. The research shows that, The closer to the middle of the goaf area, the greater the degree of rock breaking, and at the boundary of the goaf area, the lower the degree of rock breaking due to coal pillar support. When the transport slot of the 6202E working surface is placed in the 20m coal column area outside the 6403E face slot, the influence area within the upper boundary is 17.1 m, and the influence area outside the transport channel boundary is 17m, which can effectively avoid the stress impact; The track along the groove is placed at 2m in the emptying area of the 6403E track lane, the internal impact area is 15.3 m, and the external impact area is 18.4 m. The shelf support can be used to control the proximity of the surrounding rock and the near-velocity. This study plays an important role in the rational layout of the roadway and its impact on the analysis of the area and the improvement of the support effect of roadway.