望云煤矿15101综放面沿空煤巷围岩支护技术研究

Research on surrounding rock Support Technology of Gob coal Roadway in 15101 fully mechanized caving face of Wangyun Coal Mine

通过现场调研和松动圈观测对望云矿15101工作面沿空煤巷0~450m段破坏进行了统计,得出沿空煤巷顶板偏向煤柱侧及煤柱帮不对称破坏的特点。根据这一特点提出采用偏向煤柱侧布置锚索及增加锚杆长度与直径和增加锚杆索数量的控制方法,在现场试验中取得良好控制效果。

Through field investigation and observation of the loosening ring,the 0~450m section of the empty coal roadway along the 15101 working face of Wangyun coal mine was counted,and the characteristics of the asymmetric failure of the roof of the empty coal roadway toward the coal pillar side and coal pillar side were obtained.According to this characteristic,a control method of arranging anchor cables to the side of the coal pillar and increasing the length and diameter of the anchor rod and the number of anchor rod cables is proposed,and good control results are obtained in the field test.