论文部分内容阅读
龙首矿西二采区1630m水平采场分布在金川矿区5-11行,距离地面充填站垂直高差为79m,其中5行采场最远,水平充填管路长845m,钻孔垂直管路长79m。经计算,自流充填时的倍线为11.7,采区无法满足现有管道自流充填工艺要求。金川矿区采用下向进路胶结充填采矿法,因此,采空区必须采用混凝土充填,否则会带来较大的安全隐患,必须采用管道加压泵送充填技术解决存在的问题。
The 1630m horizontal stope in the second mining area of Longshe Mine is distributed in 5-11 rows of Jinchuan mining area with a vertical height difference of 79m from the ground filling station, of which the farthest stopes in 5 rows are 845m long in horizontal filling pipe, 79m long Calculated, the times when the gravity filling is 11.7, mining area can not meet the requirements of the existing gravity pipeline filling process. The Jinchuan mining area adopts the cementing and filling mining method with the downwards approach. Therefore, the concrete must be filled in the goaf. Otherwise, it will bring a big potential safety hazard. Therefore, it is necessary to solve the existing problems by the pipeline pressurized pumping filling technology.