分段法浅孔切割立槽形成方法剖析

• 作 者: 史正一
• 出 处: 化工矿山技术
• 发表日期: 1985年01期
• 关键词: 分段采矿法 浅孔 爆破补偿空间 槽形 落矿 中深孔 矿体开采 分段法 炮孔 切割天井

目前,对于顶盘中稳以上的倾斜中厚矿体,国内一些矿山多采用中深孔落矿的分段采矿法。用该法回采,矿房的切割立槽是分段或矿房落矿的最初爆破补偿空间。正确选择切割立槽(以下简称“立槽”)的形成方法,合理布置采准工程并确保其形成质量,是分段采矿法回采的关键之一。

At present, the top of the plate for the steady tilt above the thick ore, some mines in the country more use of deep-hole sub-mining method. With the method of mining, mining cut the slot is the first demolition or mining demolition room demolition of space. The correct choice of cutting vertical groove (hereinafter referred to as “vertical groove”) formation method, the rational layout of quasi-engineering and ensure the formation of quality, is one of the key mining sub-mining method.