Research on Supporting Countermeasure of B103W01 Transport Roadway in Shajihai Coal Mine

摘要

For the soft rock roadway supporting problems, using the conventional methods cannot effectively control the deformation and failure. This paper took B103W01 transport gateway project in Shajihai coal mine as example and analyzed its deformation failure reason and deformation mechanism and determined the specific measures of transforming compound mechanism of deformation mechanics into a single type. In the end, we put forward coupling support technology of constant resistance and large deformation bolt + hollow grouting anchor + corner grouting steel pipe, which had been applied to engineering practice. The monitoring results showed that the supporting effect was good. So it can be used for reference for the similar conditions of roadway supporting.