关键词: 极近距离煤层, 沿空巷道, 锚注一体化, 耦合支护

Abstract: In view of the problem that the distance between the roof of the stoping roadway and the overlying goaf layer in the working face of Renlou Coal Mine Ⅱ7324S is less than 6m, the old support mode is not enough to keep the roadway stable under the influence of mining, the destabilization mechanism and control method of the surrounding rock along the wind roadway were studied by using theoretical analysis, mathematical modeling and field monitoring, and the "anchor grouting " integrated high strength coupled support scheme ("three high and two grouting") was proposed in combination with the actual geological conditions. The "anchor grouting " technology is proposed, i.e. high torque force, high preload force, high strength support material, full-length anchor grouting and surrounding rock reinforcement grouting support scheme. The findings indicate that the deformation of the roadway is minimal and the mineral pressure on the roadway envelope is insignificant, and anchor cable in good working order, which ensures the safe production of the working face.