缓倾斜中厚矿体采矿方法试验与应用

针对海沟金矿小海沟矿区38号脉缓倾斜中厚矿体,开展了小分段中深孔落矿采矿法试验及应用。详细介绍了采矿法采准、切割、回采工艺工程。应用实践表明:小分段中深孔落矿采矿法较好地解决了缓倾斜中厚矿体开采放矿难度大、采矿损失率较高、采空区内人工耙矿安全性差等问题,取得了很好的应用效果。

Test work and application of mining methods for moderately inclined and moderately thick orebodies

Test work and applications of sublevel medium-long hole blasting method are carried out in No. 38 vein in moderately inclined and moderately thick type in Xiaohaigou mining district. The paper details the preliminary mining, cutting and stoping process. Practical application shows that the sublevel medium-long hole blasting method well handles the problems such as the hard-to-mine property of moderately inclined and moderately thick orebody, high loss rate and the bad safety in manual way to use scrapers. Satisfactory results are achieved by practical application.