Roof Control Technology for Geological Structure Influence Zone of 3308 Working Face
In order to achieve safe mining and effective control of the roof of the working face under complex geological conditions,the study focuses on the 3308 working face passing through the FQ23 and 3F80 faults,and combined with on-site conditions,technical measures for roadway and roof control were proposed.In the fractured zone and affected area of the fault,the stability of the roof of the mining roadway was mainly maintained through anchor reinforcement and roof installation in the ultra-high area.The stability of the roof of the mining face was mainly maintained through strengthening hydraulic support management,hanging metal mesh,and local grouting reinforcement.After engineering application,the roof of the 3308 working face remained stable during the period of fault recovery,without any roof leakage or support tilting,indicating that the roof control technology used on site has significant effects and can meet the safety recovery needs of the mining face.
万方数据
维普
