前喀尔巴阡钾盐矿区在广泛采用爆破落矿和电耙出矿的条件下,用高阶段矿房法采矿是改善采矿工艺的有效途径之一。在苏联和其它国家的一些急倾斜厚矿体,特别是深部水平的开采中已广泛采用这种工艺。瑞典 The former Carpathian potash mining area under the conditions of extensive use of blasting and electric rake out of ore mining, mining with high-stage method is one of the effective ways to improve the mining process. This process has been widely adopted in some steep thick ore bodies in the Soviet Union and other countries, especially in deep horizontal mining. Sweden