The study of rapid excavation support technology of half coal rock roadway with shallow burial depth and large section plays an important role in the safe and efficient recovery of thin and mdium-thick coal seams.Taking 12203 main transportation gateway excavation working face of Buetai Coal Mine as the research object,theoretical analysis,engineering analogy,and on-site application methods were used to analyze the tunnel support methods and design principles,and a design scheme for tunnel surrounding rock support was proposed.In response to the deformation of the surrounding rock of the roadway(roof subsidence and convergence of the two sides),the effectiveness and feasibility of the support design scheme was verified,which improves the safety and efficiency of production in the mine.At the same time,it also provides technical solutions for the support of half coal rock roadway with shallow burial depth and large section in other coal mines.
关键词
大断面半煤岩巷/掘进工作面/围岩控制/支护技术
Key words
half coal rock roadway with large section/driving face/surrounding rock control/support technology
维普
万方数据