关键词: 特厚煤层, 小煤柱, 沿空掘巷, 围岩控制

Abstract: In order to control rock deformation and keep surrounding rock stability and safety, based on the engineering background of 5204 roadway 8204 working face of Coal Mine, experimentally study on thick coal seam small pillar along gob roadway. Adopting roof bolt, anchor cable, metal mesh, W-type steel band and steel-anchor cable composite beams support, during driving roadway. Because the stability of roadway surrounding rock is affected by mining, the strengthening support is applied in the stress concentration region, coal rib side and small coal pillar side. Based on the in-situ observation of roadway deformation, 5204 roadway support way is scientific and reasonable, safe and reliable. 8204 working face has been done, controling surround rock achieves good effect.