中文摘要：

马钢罗河铁矿一期开采设计由崩落法改为充填法。分析了改为充填法的必要性，并对2种采矿方法的矿石生产成本、对环境影响程度等5个方面的技术经济指标进行了比较，得出由崩落法改为充填法后社会经济效益显著，值得推广。

英文摘要：

The mining design at first phase of Masteel Luohe iron mine has been transited from caving method to back-fill method. The necessity of the transition to backfill method is analyzed and both mining methods are contrasted from five aspects of technical and economic index, such as the cost of ore production, the impact to the environment etc. , concluding that the change from caving method to backfill method get remarkable social and economic benefits and is worth promoting.