目前,大多数露天铁矿的剥离物都是运往矿外进行排土,排土场占地面积很大,甚至超过采选公司矿山建设占地总面积的40％以上(表1)。从表1可以看出,所设计的矿山建设占地和排土场占地面积都是较大的,所以在设计排土时应当考虑土地的合理利用和环境保护问题。中央国立采矿工业设计院为古布金斯克 At present, most of the open-pit iron ore stripping is carried outside the mine for dumping. The dump site covers a large area, even more than 40% of the total area occupied by mining companies (Table 1). As can be seen from Table 1, the designed area for mine construction and dump site are large, so the rational utilization of land and environmental protection should be considered when designing drainage. Central State Mining Industry Design Institute for the ancient Burkinsk