Location of Roadway of External Staggered Arrangement in Near Horizontal Thick Coal Seam

To research the problem of roadway layout under the condition of external misaligned stagger arrangement, according to the research status of domestic gob-side entry driving, the top coal stress division of 302 working face in Chahasu Coal Mine was divided by theoretical calculation and field measurement. The stress field after excavation of the working face and plastic zone under the corresponding support scheme is analyzed by numerical simulation. The results show that the top coal and the bottom coal are in different stress states under the condition of roadway layout in staggered strata, which indicates the feasibility of roadway layout and support scheme in staggered strata.