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瑞典采矿研究基金会(Svenska Gruv-f(?)reningen)于1980～1985年期间完成了一项大直径深孔崩矿空场采矿法试验。这项将露天采矿技术应用于地下开采的试验,系在基律纳矿区一个老矿井内进行的。长200m、厚20m 的盘区用高100m、宽35m 的矿房回采,房间矿柱嗣后回收。从上部平巷准确地下向钻凿炮孔。为了保证上盘的稳定性,从掘在矿体上盘内的两个平巷安装锚索预先加固顶板。根据岩石力学的初步研究结果,可以建立岩体地质力学状态模型。安装了高级数据处理系统,可以记录和存储在爆破瞬间测得的数据。这项试验还为采用新爆破技术提供了机会。经济分析表明:此采矿方法在费用方面具有竞争力。
The Swedish Mining Research Foundation (Svenska Gruv-F (reningen)) completed a pilot test of a large-diameter deep-hole collapse mine in the open field from 1980 to 1985. The trial of open pit mining used in underground mining was carried out in an old mine in the Kiruna mine. Long 200m, thick 20m panel with a high 100m, 35m wide mines mining, room pillar subsequently recovered. From the upper lane exactly drilled hole. In order to ensure the stability of the plate, from digging in the ore body of two lanes to install anchor pre-reinforcement roof. According to the preliminary research results of rock mechanics, the geomechanical state model of rock mass can be established. An advanced data processing system is installed to record and store data measured at the moment of blasting. This test also opens the door to new blasting techniques. Economic analysis shows that this mining method is cost competitive.