摘要
浒坑钨业大脉区随着开采中段的延深,矿脉赋存条件变得极为复杂,尤其是矿脉在倾向上由缓变急现象时常可见,给回采工作带来了巨大的困难,针对此类矿脉的回采方案,工程技术人员积极探索,在原有采矿方法的基础上进行改进,采用全面法和留矿法综合回采的技术成功地回采了此类矿脉,充分回收了国家资源,提高了矿块回采率。
The development of exploitatir/g in the middle part of the Big Vein Belt in Huken Tungsten Mine,the coal seams of Mineral Narrow Veins in middle part becomes extremely complex ,especially the inclination of Mineral Narrow Veins is dispersion-decreasing, the phenomena of it is detected easily, it bring great difficulties to extration.engineering technical personnel explore actively on Extration scheme under complex coal seams, improving the Extration scheme on the basis of old scheme, using the Overall Mining Method and Shrinkage Method together,extrating successfully the Mineral Narrow Veins under complex coal seams.the new Extration scheme fully reclaim the nation＇s resources and improve the extratlon rate
出处
《科技信息》
2012年第7期604-605,共2页
Science & Technology Information
关键词
浒坑
探索
回采率
Hu keng
Explore
Extration rate
