深部开采全煤巷道合理支护分析  

Reasonable supporting technique of full coal roadway in deep mining

作　　者：张友博[1] 

机构地区：[1]国投新集能源股份有限公司,安徽淮南232170

出　　处：《安徽建筑工业学院学报（自然科学版）》2013年第3期94-96,共3页Journal of Anhui Institute of Architecture(Natural Science)

摘　　要：根据深部开采全煤巷道变形特征,提出了在巷道两帮中部加密布置锚杆控制该部位显著塑性变形,顶煤与直接顶结构面中部布置预应力锚索控制该部位不稳定层间离层,底角锚杆控制底鼓的支护方案,应用于新集矿区261308回风巷支护工程实践,取得了较好的控制效果。Based on the deformation character of full coal roadway in deep mining,for example 261308 air return way coal in xinji mining,the new supporting system was put forward that high strength bolt of more dense and length was put in middle of tunnel side to keep plastic deformation stability,prestress anchor was applied in middle of tunnel roof to eliminate interlayer separation and to keep loose coal interlayer stability and floor bolt was put to control heaving floor deformation.through application in 261308air return way coal in xinji mining,its effect was satisfactory.

关 键 词：深部开采 全煤巷道 围岩变形 合理支护 

分 类 号：TD353[矿业工程—矿井建设]