利用反井钻机施工组合煤仓  

Application of Raise Boring Machine to Construction of Combined Coal Bunker

作　　者：刘国申 

机构地区：[1]平煤神马建工集团有限公司建井三处,河南平顶山467000

出　　处：《建井技术》2014年第5期23-25,11,共4页Mine Construction Technology

摘　　要：平顶山天安煤业股份有限公司五矿己四采区中部煤仓,是由立仓和大倾角斜仓构成的组合煤仓。立仓设计深度42.5m,圆形断面,净直径4m,荒径4.8m。斜仓设计长度23.1m,倾角65°,仓身亦为圆形断面,净直径3m,荒径3.8m。立仓和斜仓施工中,均先利用反井钻机进行导孔和扩孔钻进,形成反井井孔;再用普通钻爆法刷大,锚网临时支护,钢筋混凝土永久支护,短段掘砌。该组合煤仓实际总工期为85d,按期完成了施工任务,工程质量优良,受到了业主好评。A middle coal bunker in Ji4 Mining Block of No.5 Mine in Pingdingshan Tian’an Coal Com pany Limited was a combined coal bunker with a vertical bunker and a high inclined bunker. A de signed depth of the vertical bunker was 42.5m. The vertical bunker was a round cross section. The net diameter of the vertical bunker was 4m and the excavation diameter was 4.8m. A designed length of the inclined bunker was 23.1m with an inclination of 65° and the bunker was a round cross section with a net diameter of 3m and excavation diameter of 3.8m. In the constructions of the vertical bunker and the inclined bunker,a raise boring machine was first applied to the pilot drilling and to the pilot borehole reaming. Then a conventional drilling and blasting method was applied to the reaming of the bunker. A bolt and steel mesh was applied to the temporary support of the bunker,a reinforced con crete was applied to the permanent support of the bunker and the short section excavation and lining method was applied. A total construction period of the combined coal bunker was 85 days,the con struction mission was completed on schedule,the project quality was excellent and a good evaluation was made by the project owner.

关 键 词：组合煤仓 反井钻机 大倾角斜仓 立仓 光面爆破 

分 类 号：TD264.4[矿业工程—矿井建设]