Study on the influence of the position of the stopping line in the close distance coal seam on the down-dip roadway layout
Jin Tao1, Zhu ziqi2，Du Kehui3
1. Carterpillar (Zhengzhou) Company Ltd., Zhengzhou 450103, China; 2. Mining Engineering Institute, China University of Mining and Technology, Xuzhou 221116, China； 3. Beijing Tiandi Huatai Mining Engineering and Technology Company Ltd., Beijing 100013, China
Due to the complex time-space relationship of the close distance coal seam mining, the surrounding rock of the stop has a complex stress field, affecting the stability of roadway nearby. Reasonable stopping line has an important significance to the stability of the roadway in the close distance coal seam, according to the geological conditions of the Jinjiazhuang coal mine No. 3 coal seam, through theoretical analysis and numerical simulation, analysis of No. 3 coal seam west mining area different stopping line impacting the lower coal seam down-dip roadway. The 30 m reasonable stopping line was settled, not only reduced the stress around the down-dip roadway of the lower coal seam, but also reduced deformation of the roadway, improved the recovery rate of coal resources.
金 桃，朱子祺，杜克辉. 近距离煤层停采线位置对下山布置的影响研究[J]. 煤炭与化工, 2016, 39(4): 17-20.
Jin Tao，Zhu ziqi，Du Kehui. Study on the influence of the position of the stopping line in the close distance coal seam on the down-dip roadway layout. CCI, 2016, 39(4): 17-20.
