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在党中央大力發展銅鋁的号召下,祖国各地正在掀起着銅鋁生产的热潮,土法采銅亦如雨后春笋。为了有助于交流情况,我們將某地区所屬几个土法开采铜矿所了解到的一些情况,特別是采矿方法上,提出一些初步意見,仅供各土法开采矿山参考。根据目前我們所看到的一些土法采銅矿山,其矿床类型粗略地概括如下列四种类型: 1.緩傾斜及傾斜薄矿层; 2.急傾斜薄矿脉; 3.傾斜厚矿体; 4.急傾斜多层矿脉羣及網狀矿脉。他們所采用的方法有下列几种: 1.坑道掘进采矿 50％; 2.露天开采 30％; 3.不留底巷的选別充填法 20％; 4.留矿法 20％; 5.横撑支柱法 20％。坑道掘进采矿目前土法采銅矿山在下列情况下使用这种方法:
With the vigorous development of copper and aluminum by the Party Central Committee, the craze for copper and aluminum production is setting off in various parts of the motherland. Turkish soil for copper mining also mushroomed. In order to facilitate the exchange of information, we have made some preliminary comments on some of the conditions learned by several indigenous mining copper mines in a certain area, especially the mining methods, and are only for reference by mining by each indigenous law. According to the current we have seen some indigenous copper mining, the type of ore roughly summarized as the following four types: 1. Gentle inclined and inclined thin seam; 2. Steep inclined thin veins; 3. Slope thick ore body; 4 Steeply inclined multilayered veins and reticular veins. The methods used by them include the following: 1. Tunnel excavation mining 50%; 2. Open-pit mining 30%; 3. Do not stay at the end of the road sorting and filling method 20%; 4. Retention method 20%; 5. Heng Support pillar method 20%. Tunneling Mining At present, TAC copper mines use this method in the following cases: