沿空留巷在碱场煤矿六井的应用

Application of Retaining Roadways along Goaf in No.6 Mine in Jianchang Coal Mine

碱场煤矿六井采用锚杆(索)、锚网联合支护及空区码石墙、上帮打贴帮点柱的方式,有效地解决了巷道沿空留巷的难题,同时降低了万吨掘进率。根据该矿地层特征及区域内地质条件,采用沿空留巷的方法,给该矿六井带来了较大的经济效益。

The combined support with bolt （cable） and mesh, stacking rock walls in goaf, building point pillars next sides etc., are applied in No. 6 mine in Jianchang Coal Mine. The difficult problems of retaining roadways along goaf are effectively solved. At the same time, the drivage ratio of ten thousands tons is reduced. According to the layer characteristics in Jianchang Coal Mine and geological conditions in region, the way of retaining roadways along goaf is applied. The larger economic benefits are brought for No. 6 mine in Jiauchang Coal Mine.