Physical simulation study on arrangement about mining roadway with short distance

Based on physical simulation test, the stability of mining roadway with different staggered distance was studied from the aspect of degree of damage. Results indicate: (1) Of these arrangement modes about mining roadway with short distance, global stability of the inboard-type roadway is better, roof subsidence is smaller. It is suggested that the Zhang Chun coal mine adopts this kind of arrangement mode; (2) The degree of damage about overall overlapping-type roadway is larger, and roof subsidence is similar with the inboard-type roadway. (3) Deformation and damage can reach the maximum in the outward-type roadway when the outward staggered distance is 2m, and the degree of damage about outward-type roadway relatively decreases with the increase of staggered distance. Overall, roof subsidence in the outward-type roadway is larger.