Numerical Simulation and Engineering Application of Yielding Control Supporting in Soft Rock Roadway of 1 000 m Deep Well

In view of the support problem of soft rock roadway in 1 000 m deep well, the stability of -1 196 m auxiliary wind roadway in Xingcun Coal Mine was studied by using numerical simulation method combined with field industrial test. The evolution law of stress field, displacement field and plastic zone of different supporting schemes were analyzed, and field application tests were carried out. The results show that the degree of stress concentration and roadway deformation can be reduced with the yielding control supporting technology for deep high stress soft rock roadway; the yielding control supporting measures are well applied and can maintain the long-term stability of surrounding rock. The research conclusion has certain guiding significance to guide the supporting engineering of deep high stress soft rock roadway.