浅孔留矿法采场底部结构形式的研讨

Discussion of stope bottom structure type based on shallow hole shrinkage method

根据菜园子铁矿的生产实际,结合现场采矿方法试验,比较了三种底部结构形式的主要技术经济指标,并综合考虑矿山的矿床地质赋存条件及装备技术水平的差异,提出适应不同条件的相对较优的底部结构选择原则,矿山应因地制宜地选取底部结构。

According to the actual production of Caiyuanzi iron mine and in combination with site test of mining methods, the main technical and economical in dexes for three kinds of bottom structure types were compared. In comprehensive consideration of ore deposit geology occurrence condition in the mine and equipment and technology differences, the principle for selection of relative optimal bottom structure which is suitable for different conditions was put forward,and the bottom structure of mines shall be selected according to local conditions.