球形药包分层掘进天井实践

• 作 者: 张成
• 机 构: 北京矿冶研究总院
• 出 处: 江西冶金
• 发表日期: 1988年06期
• 关键词: 天井 药包 凡口铅锌矿 金厂 布孔 采矿法 爆破技术 井壁 作业安全 炮孔

VCR采矿法在凡口铅锌矿试验成功之后,我院在凡口铅锌矿和金厂峪矿做了用球形药包漏斗爆破技术掘进天井的尝试,实践证明,球形药包分层爆破掘进天井具有作业安全、效率高、劳动强度小、井壁规整等优点。本文阐述金厂峪天井的试验情祝,并且对若干问题进行讨论。 一、天井的布孔方案: 我国利用这种方法掘进天井尚在探索阶段,在金厂峪试验之前,我院仅在广东凡口铅锌矿做过尝试。第一个试验天井的断面为2·3×2·3M~2,共打个孔(见图1)。

After the VCR mining method was successfully tested in the Fankou lead-zinc mine, our hospital tried to excavate the pits in the funnel lead-zinc mine and the Jinchangyu Mine by means of ball-shaped funnel explosions. Practice has proved that the ball-shaped kits layered blasting Patio with operational safety, high efficiency, low labor intensity, shaft wall and other advantages. This article elaborates the trial situation of Jinchangyu Patio, and discusses some issues. First, the layout of the hole in the patio: China using this method of tunneling is still in the exploration stage, before the trial in Jinchangyu, our hospital only in Guangdong Fankou lead-zinc has done. The first experimental patio section was 2.3 × 2 · 3M ~ 2, a total of playing a hole (see Figure 1).