Abstract:
On the basis of analyzing existing problems of stability control of roadside filling wall in the course of gob-side entry retaining, from two aspects of optimizing bearing behavior of roadside wall and improving external stress environment of roadside wall, we propose the control technology for roadside wall stability, such as materials selection, preseting steel mesh reinforcement, strengthening support of filling wall by roof bolt and cable, anchor reinforcement of roadside wall after filling and coordinating surrounding rock supporting system. Combined with the engineering practice of Shaqu Coal Mine 24207 working face, it gets the expected effect.