Taking 11105 isolated island working face of Zhengzheng Coal Industry Co.,Ltd.as the research object,aiming at the problems such as mining failure area of overlying small coal pit,stress concentration of surrounding rock and fault structure during the excavation of 11105 material crossheading,combined with previous construction experience and existing roof management technology,a differentiated support technology scheme based on anchor net cable and scaffolding was proposed,and the technical scheme of surrounding rock support was given in detail.The engineering practice results show that the differentiated support method adopted by 11105 material crossheading can effectively control the roof,meet the needs of surrounding rock control under complex conditions,effectively reduce the safety risks,and achieve the purpose of safe and effective support.
关键词
孤岛工作面/采空区/断层/围岩支护/回采巷道
Key words
isolated island working face/goaf/fault/surrounding rock support/mining roadway
维普
万方数据