Abstract:In the process of coal seam mining, the problems of serious deformation of the roadway perimeter rock and the difficulty of support are prominent, which greatly affect the safe production and efficient operation of the coal mine.In this paper, we take 36405 working face of Xishan coal mine as a specific engineering background and carry out an in-depth research.We designed three types of roadway support schemes, and used Midas numerical simulation software to make a detailed comparative analysis of the deformation of the surrounding rock, the state of stress distribution, and the distribution range of the plastic zone in the roadway under these three different support schemes.After comprehensive evaluation, the preferred support scheme was finally determined and field tests were carried out. The field test shows that the deformation of the top and bottom slabs and the two sides of the tunnel enclosure is basically stable at 23.6mm and 15.2mm, which verifies the reasonableness of option 3.
