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瑞典国营Luossavaara-Kiirunavaara公司,通常简称LKAB,从十九世纪末开始开采瑞典北部的铁矿。原矿总产量为4100(万吨/年),其中2200万吨采自基鲁纳(Kiruna)地下矿,1200万吨产自马尔姆贝格特(Malmberget)地下矿,其余采自勒沃恩尼米(Leveaniemi)露天矿和基鲁纳小露天矿。地下采矿方法是使用无轨设备的分段崩落法。目前基鲁纳与马尔姆贝格特两矿的开采深度为400～450米,从地表到地下都有斜坡道相连。矿体倾角55～70°,矿体外形各不相同,其水平面积在基鲁纳矿为32.5万米~2,在马尔姆贝格特矿为20万米~2。基鲁纳矿的主要运输水平在540米水平,采用铁路运输,目前正在775米开拓一个新的主要运输水平。马尔姆贝格特矿的主要运输水平在600米,采用无轨运输,现正设计和开拓800米水平。矿石
The Swedish state-owned Luossavaara-Kiirunavaara company, often referred to as LKAB, began mining iron ore in northern Sweden from the late nineteenth century. The total ore production is 4100 tons, of which 22 million tons are from the underground mine in Kiruna, 12 million tons are from the underground mine in Malmberget and the rest are from Leverine Leveaniemi open pit mine and Kiruna small open pit mine. Underground mining method is the use of trackless equipment sub-caving method. At present, the two mines at Kiruna and Malmöberget have a mining depth of 400-450 meters and are connected with slopes from the surface to the ground. Ore body dip 55 ~ 70 °, the ore body varies in shape, the level of the area in the Chiluna mine is 325,000 m ~ 2, in Malm bergat mine is 200,000 m ~ 2. The main transport level of the Kiluna mine is at a level of 540 meters using rail transport and is currently opening a new major transport level at 775 meters. The main transport level of the Malmöberget mine is 600 meters, with trolley-free transport and is currently being designed and developed to 800 meters. ore