掘进巷道过断层破碎区支护技术

Support Technology of Tunneling Roadway Passing through Fault Fracture Area

针对2041巷掘进期间过F4断层时顶板出现破碎、局部冒漏现象,对原顶板支护主要存在的问题进行合理分析,并提出了“曲型梁棚+超前注浆锚索”联合支护。通过实际应用效果来看,采取联合支护技术后,有效控制了顶板破碎、下沉现象,取得了显著应用成效。

In view of the phenomenon of roof breaking and local leakage when passing through F4 fault during the 2041 roadway driving,the main problems of original roof support are reasonably analyzed,and the combined support of"curved beam shed+advanced grouting anchor cable"is put forward.Through the practical application effect,after adopting the combined support technology,the phenomenon of roof breaking and subsidence has been effectively controlled,and remarkable application results have been achieved.