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在采场内使用自重运矿采矿法的主要目的是:减少采准切割工作量,以简化采矿方法;改善放矿条件和采用能力较大的放矿设备,以提高放矿效率;提高采矿的生产能力,以增加集中采矿的可能性。无底柱采矿法是符合这些要求的(注:此法为建议的)。无底柱采矿法,在下列情况下可用于厚矿体中:矿房随后必须充填或者不回收矿柱;回采巷道没有适合机械运矿的条件。
The main objectives of using self-contained mining in the stope are to: Reduce the number of quarry cuts required to simplify mining methods; Improve ore-handling conditions and use more capable ore-handling equipment to improve ore-dressing efficiency; Production capacity to increase the likelihood of concentrated mining. Bottomless mining method is to meet these requirements (Note: This method is recommended). Bottomless mining methods are used in thick ore bodies where the mines must then be filled with or without pillar recovery; there are no conditions in the recovery tunnel that are suitable for mechanical mining.