In the process of coal mining,the gob-side entry retaining is prone to deformation and damage due to mining.No.30106 intake roadway of Youzhong Mine was taken as the research object.By analyzing the actual conditions and field conditions of the mine,the reuse and reinforcement principle of No.30106 intake roadway as 30108 transportation roadway after using the in-plane small coal pillar gob-side entry retaining technology in 30106 working face was studied.Through the industrial test of No.30106 intake roadway,the reinforcement of 1800 m before roadway reuse was successfully realized,and the normal use of No.30108 working face as No.30108 transportation roadway before mining was realized,so as to maintain the stability of roadway surrounding rock and complete the reinforcement design of roadway reuse.Finally,the repair and reinforcement of gob-side entry retaining were realized,in order to provide some reference for the maintenance of working face roadway under similar conditions.
关键词
沿空留巷/巷道修复/加固设计/破断岩层/围岩控制
Key words
gob-side entry retaining/roadway repair/reinforcement design/broken rock/surrounding rock control
维普
万方数据