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机构地区:[1]赤峰银海金业有限责任公司 [2]吉林电子信息职业技术学院
出 处:《黄金》2007年第4期32-34,共3页Gold
摘 要:简述了官地银金矿传统浅孔留矿采矿法应用中存在的突出问题,即间柱滞后矿房回采,且占有矿量多,造成地压集中显现。通过采准天井沿脉和下盘脉外两种形式相间布置,联络道结构形式新型设计,实现了矿房和间柱同步回采,提高了间柱矿石回采率,缩短了矿块回采周期,在总的采准工程量大致不变的情况下,对传统浅孔留矿采矿法中间柱滞后矿房回采应是一种新的尝试。The problems of traditional shallow-hole shrinkage stoping method applied in Guandi silver-gold mine were discussed first, which were the delay of rib pillar stoping and severe ground pressure appearance. By alternately disposing along vein and underwall outside-vein raises and designing new structures for runoff tracks, rib pillars can be stoped in step with chambers. Finally, the recovery rate of ore pillars was enhanced and the stoping period was shortened while the preparing work was approximately the same.
分 类 号:TD853.33[矿业工程—金属矿开采]
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