一、国外露天矿的采剥方法近十几年国外露天矿发展很快,用露天法采出的矿石占的比重很大。国外露天矿的采剥方法也有一些发展,按其基本结构有以下四种: (一) 纵向采剥方法纵向采剥方法,如图1,采剥工作面的 First, the method of mining open-pit mines in the past 10 years, the rapid development of open-pit mines in the open-air mining method accounts for a large proportion. There are also some developments in the mining methods of open-pit mines in the world. According to their basic structure, there are the following four types of mining methods: 1. Longitudinal mining methods Longitudinal mining methods, as shown in Figure 1,