Based on simulated material scale modeling and numerical simulation,the pro-tective seam mining method was conducted at one coal mine.After extracting the No.15 seam,the overlying strata movement and the deformation of the No.9-10 protected seam were studied.The experiment results show that it is feasible to destress the protected seams with large interburden thickness.When the face had advanced 200 m from the setup room,the No.9-10 seam was fully destressed,resulting in easy gas drainage in the destressed zone.Recommendations on mining sequence of multiple seams mining in the same coal areas were made.