在过去10年里，LKAB公司象其它许多大矿业公司一样经历了深刻的变化。产量增加了近70％，雇员减少45％，劳动生产率（按每个雇员最终产品的吨数计）增长了2倍。取得这种增长是矿业公司对开发与研究持续协调投资的结果。本文描述了应用特大规模分段崩落法（分段高度达到32m）所取得的成果和目前其它一些开发工作，也简要介绍了基律纳（Kiruna）矿即将完成的KUJ2000计划。 For the last 10 years, LKAB has undergone the same dramatic changes as many other big mining companies. Production increased by nearly 70%, employees by 45%, labor productivity (by tonnage of final product per employee) tripling. Achieving this growth is the result of continued coordinated investment by mining companies in development and research. This paper describes the results achieved by using the oversize caving method (with a segment height of 32 m) and some other current developments. It also briefly introduces the forthcoming KUJ2000 program at the Kiruna mine.