Answer: Reasonable transportation distance of open-pit mine automobile transportation: When transported by ordinary load dump truck, the reasonable transportation distance is generally less than 3km; when it is transported by large electric wheel dump truck, due to its load capacity, its reasonable transportation distance is also It will increase by 5~6km.
Reasonable transportation distance of open-pit mine railway transportation: For a small and medium-sized open-pit mine, when the narrow-gauge railway is used, the reasonable transportation distance is generally less than 3km; for large-scale open-pit mines where the terrain is not complicated and the ore body shape meets the requirements, it is reasonable. The transport distance is generally greater than 4km.
Using roads to develop reasonable mining depth: within a reasonable transportation range, the reasonable depth of single vehicle transportation development is 80~150m when using vehicles with a load of 40t or less. When using a vehicle with a load capacity of 80~120t, its reasonable depth can reach 200. ~300m.
The use of railways to develop a reasonable mining depth: According to the unit rock and rock transportation costs, the economic and reasonable mining depth for a single railway transportation of a sag open pit mine is about 120~150m. When using tractor locomotives, the mining depth can reach 300m. The reasonable use range of single railway transportation development can reach 300~350m above and below the surface.
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