Based on the current situation of seepage and roof fall of the peripheral rock in the transport roadway of the working face,this paper analysed the mechanical properties of the peripheral rock and the fissure structure,and carried out secondary reinforcement of the transport roadway by combining the grouting and reinforcement technology.After on-site monitoring of the grouting effect is good,60 d monitoring cycle of the roadway top and bottom plate and two gangs of only 15 cm,20 cm,the control effect is obvious.
transport tunnelgrouting supportdeep hole groutinganchor cable
NETL
NSTL
维普
万方数据
