Under the condition of close distance coal seams ascending mining in Suncun coal mine,using RFPA numerical analysis software,we analyzed the stress environment of the upper coal seam.

• 结合覆岩导水裂隙带的观测结果,探讨了上位煤层回采巷道的稳定性,证明上行开采条件下上位二层煤的回采巷道稳定性较下行开采有较大的改善;