金能煤业2号煤松动圈测试及应用  

Testing and Control Application of Loose Circle of No.2 Coal in Jinneng Coal Industry Co.,Ltd.

作　　者：任泽明 Ren Zeming(Jinneng Coal Industry Co.,Ltd.,Huozhou Coal and Electricity Group Co.,Jingle,Shanxi 035100)

机构地区：[1]霍州煤电集团金能煤业有限公司,山西静乐035100

出　　处：《江西煤炭科技》2021年第4期19-21,24,共4页Jiangxi Coal Science & Technology

摘　　要：为确保金能煤业东翼集中回风巷的稳定,通过对巷道围岩松动圈测试发现,金能煤业2号煤的松动圈范围最大为2.4 m,属于不稳定围岩,并提出采用高强锚杆和中空注浆锚索联合支护来控制巷道围岩变形。现场实施后对巷道围岩变形监测结果显示,顶板最大下沉量为120 mm,两帮移近量为98 mm,变形量较小。In order to ensure the stability of the centralized return air roadway in the east wing of Jinneng Coal Industry Co.,Ltd.,through testing the surrounding rock loose circle,it is found that the maximum range of the loose circle of No.2 coal is 2.4 m,which belongs to the unstable surrounding rock.The combined support with high-strength bolt and hollow grouting anchor cable is proposed to control the surrounding rock deformation whose field monitoring results show that the maximum roof subsidence is 120 mm,the two sides of the approach is 98 mm,and the deformation is small.

关 键 词：围岩松动圈 巷道变形控制 超声波探测 高强锚杆 注浆锚索 

分 类 号：TD263.56[矿业工程—矿井建设] TD353.6