乔后盐矿呆滞矿体的开采研究  

Researches on the Retrieving of the Stagnant Deposit of Chaohou Salt Mine

作　　者：宦秉炼[1] 周昌达[1] 段希祥[1] 

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093

出　　处：《昆明理工大学学报（理工版）》2000年第6期41-45,共5页Journal of Kunming University of Science and Technology(Natural Science Edition)

摘　　要：对于乔后盐矿的呆滞矿体 ,若以现在使用的钻井气垫水溶法开采 ,将产生严重的安全问题 .本文提出了适应于呆滞矿体开采的新方法———钻孔液面恒位硐室水溶法 .它以 5m间隔的91mm小直径钻孔进行水采 .通过监测设备的控制 ,使每分层溶采循环的液面保持恒定 ,从而使最终溶腔为长条形溶槽 .将溶槽跨度控制在 1 2m范围 ,可使安全性保持在较高水平 .新方法与硐室水溶法相比较 ,单位矿石投资成本降低 1 1 .67% ,而单位矿石经营成本基本相同 ;回收率提高 1 0 6.98% ;生产率亦大幅度提高 .It may result in serious safety problem to exploit the stagnant deposit of Chaohou Salt Mine by bore hole well air cushion solution method. This paper puts forward a new method called constant liquid level bore hole room solution mining. It is also a hydraulic method with 91 mm of drillholes laid at an interval of 5 meters. The liquid level is kept at a constant position in a slice cycle so as to make the ultimate solution cavity be oblong shaped horizontally. Keeping the span of the cavity within 12 meters will ensure a high safety. Compared with the rooms solution method, the new method will reduce the unit invest cost by 11.67% while the operating cost almost unchanged, and increase the recovery by 106.98% and the efficiency by a big margin.

关 键 词：呆滞矿体 钻井水溶法 安全性 乔后盐矿 开采 

分 类 号：TD871.1[矿业工程—非金属矿开采]