断层破碎带煤巷注浆锚索支护技术实践

Practice on Supporting Technology with Grouting Anchor at Roadway in Fault Fracture Zone

长沟煤矿15123工作面回风巷受断层影响,围岩变形严重,拟采用注浆锚索、高强锚注支护技术应对;注浆锚索、注浆加固后,大大改善围岩控制效果;现场监测表明,可有效控制断层破碎带区域围岩变形,巷道的变形量在可控范围内,从而确保了回风巷的通畅与安全。

In view of the serious surrounding rock deformation influenced by fault in ventilation roadway at 15123 working face of Changgou Colliery,the author proposes the supporting technology with grouting anchor and high-strength bolt,whose field practice shows the surrounding rock can be effectively controlled within controllable range in fault fracture zone,guaranteeing the smooth and safe ventilation roadway.