一、绪言对于开采矿石来说,选定采矿方法占有非常重要的位置。既安全、经济,效率又高的开采矿体是我们素来所期望的目标。以往是根据对于矿体长期的勘测,比较其优缺点而决定采矿方法的,但是,在生产过程中,根据安全条件可采率以及废石混入率等条件的变更而改变采掘方法的也是屡见不鲜的。枥洞矿山的采矿方法大部分为分段采矿法和阶段崩落法,可是,近年来大型矿体的 I. INTRODUCTION For the mining of ores, the chosen mining method occupies a very important place. The safe, economical and efficient mining of ore bodies is what we have always expected. In the past, long-term surveys of ore bodies were carried out to compare their advantages and disadvantages to determine the mining method. However, it is not uncommon for mining methods to be changed according to conditions such as safe recovery rate and waste rock mixing ratio in the production process . Most of the mining methods in the Ston Dong mine are the sub-mining method and the caving method. However, in recent years,