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我国的铁、锑、铜、硫和磔等矿山,均有一定比重的倾角20～50°,真厚度4～10米及矿岩尤其上盘稳固至中稳的矿体,使用空场法开采。那些采矿法,尽管为适应不同的条件其个别结构略被改变,但它们毕竟还是属于缓或急倾斜矿体的空场法,其基本结构和工艺原来不是为针对这类中间型矿体的特殊赋存条件而设计的,因此在若干矿山的使用中,在采矿法的安全、效能和经济方面都存在一定的问题。为求得这些问题的解决,本文试从以下几个方面对这类矿体的空场法做些探讨。
The mines of iron, antimony, copper, sulfur and molybdenum in our country all have a certain proportion of dip angle of 20 ~ 50 °, true thickness of 4 ~ 10 meters and ore rock, especially on the plate stable to moderate ore body, the use of open field mining . Those mining laws, although their individual structures have been slightly modified to suit different conditions, are still, after all, an open-field method of slow or steep orebodies whose basic structure and process were not originally designed for the special Designed to survive conditions, the use of several mines poses certain problems with respect to the safety, efficacy and economy of the mining laws. In order to solve these problems, this paper try to explore some of the following aspects of the open field method of such ore bodies.