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从国内矿山来看,如黑色金属,有色金属以及菲金属矿床都有此类矿体;例如铁矿、铜矿和锡矿以及磷矿等。从当前国内外矿山生产技术动态来看,对于此类缓倾斜中厚矿体类型,主要是广泛采用底盘漏斗采矿法或房柱采矿法,从目前一些矿山生产实践来看,主要存在以下问题: (1) 采用底盘漏斗采矿法时,采切比很大,特别是矿体厚度在4.0～6.0米时,采切比更大;这样,不仅增加采场准备时间,影响采场生产周期,而且会延长基建时期或导致投产后的采掘失调,影响强化开采。 (2) 在底盘漏斗结构的小断面上山内,采用小型电耙,采场出矿强度受到极大限制,影响采场生产能力和采场生产周期,从而难于进一步实现强化开采。
From the domestic mine point of view, such as ferrous metals, nonferrous metals and Philippine metal deposits have such ore bodies; such as iron ore, copper and tin and phosphate rock. From the current domestic and international mine production technology trends, for such moderately inclined ore body types, mainly using the chassis funnel mining method or the column and column mining law, from the current practice of some mine production, the main problems are as follows: (1) When the mining method of the chassis funnel is adopted, the cutting and cutting ratio is very large, especially when the ore body thickness is 4.0-6.0 meters; therefore, not only the preparation time of stopes is increased, but also the stope production cycle is affected, moreover Will extend the capital construction period or lead to the excavation after the imbalance, affect the enhanced mining. (2) In the small section of the funnel structure of the chassis, a small electric rake is adopted, and the intensity of the outburst in the stope is greatly restricted, which affects the production capacity of the stope and the stope production cycle, making it difficult to further strengthen the mining.