In order to ensure the stability of the peripheral rock of the retreat channel of 15212 working face and prevent the peripheral rock of the retreat channel from crushing and deformation under the influence of the mining movement of the working face,the joint support technology of"anchor rods(ropes)+anchor rope trellis+flexible fibre mesh+monolithic columns"has been proposed in accordance with the current situation of the actual support,and the effect of the actual application shows that:after the adoption of the joint support technology,the retreat channel is not obviously affected by the mining movement,and the support technology can effectively control the retreat channel.The actual application effect shows that:after adopting the joint support technology,the retreat channel is not obviously affected by the mining movement,and the deformation phenomenon of the retreat channel is effectively controlled,which has achieved remarkable application results.
integrated mining working faceretreat channelsupport design
NETL
NSTL
万方数据
