“松土机——铲运机”露天开采新工艺,首先在美国的煤矿获得应用,取得了良好的经济效益。其后在法,苏、澳大利亚亦获得成功,引起了世界上普遍的重视。 1984年我国山西孝义铝矿进行了工艺性试验,取得了很好的技术经济效果。现在山西孝义铝矿二期新建矿山采用新工艺方案 “Trench loaders -” open-pit mining new technology, first of all in the United States access to coal mines, and achieved good economic returns. Subsequent success in France, the Soviet Union and Australia also aroused the universal attention in the world. In 1984, Shanxi Xiaoyi Aluminum Mine in China carried out technological tests and achieved good technical and economic results. Now Shanxi Xiaoyi aluminum two new mines using new technology program