Method for determining surface situation of open-pit mine

Abstract

The invention discloses a method for determining the surface condition of an open pit mine. The method comprises the following steps: 1) determining a mining program of an open pit mining machine; and(2) dividing a stope according to the mining program of the open-pit mining machine in the step (1), and delineating a surface situation. The method for determining the surface situation of the openpit mine according to the open pit mining machine technology is provided based on the mining procedure of determining the open pit mining machine, delineation of the surface boundary of the open pit mine is more reasonable, the ore recovery rate is increased, the dilution rate is reduced, and ordered mining of mines is guaranteed. According to the method for determining the surface condition of the open-pit mine, the dispersive ore body meeting the open-pit mining machine process can be reserved, and the ore recovery rate is increased to a great extent. For a large-area continuous ore body, the open-pit mine boundary delineation is more accurate, so that the ore recovery rate can be improved, and the dilution rate can be reduced.

Description

technical field [0001] The invention belongs to the technical field of open-pit mining, and in particular relates to a method for determining the surface boundary of an open-pit mine. Background technique [0002] At present, the surface boundaries of open-pit bauxite mines mined by surface mining machines are delineated according to the range of the stripping ratio contour line. Often the surface boundaries of open-pit mines delineated according to the above principles are scattered, and the surface boundaries of open-pit mines are not delineated when delineating the boundaries. Considering the mining procedure of the mining machine, most of the small and scattered ore bodies that have been delineated are discarded artificially, and only large-area continuous ore bodies are kept. A large amount of ore resources that could have been mined by open-pit mining machines were wasted. Moreover, the open-pit mining area usually does not divide the stope, and often advances from one...

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Problems solved by technology

[0002]At present, the surface boundary of open-pit bauxite mines mined by surface mining machine technology is delineated according to the range of the stripping ratio contour, and the open-pit delineated according to the above principles is often The surface boundary of the mine is scattered, and the mining procedure of the surface mining machine was not taken into account when delineating the boundary, resulting in the fact that most of the delineated scattered ore bodies with a small area were artificially discarded, and only large-scale continuous ore bodies were retained. Ore resources that could have been mined by surface miners were wasted

Moreover, open-pit mining areas are usually not divided into stopes, and often advance from one side of the stope to the other, resulting in serious ore loss and dilution.

In traditional open-pit mines mined by open-pit mining machines, because the mining procedures of the open-pit mining machines are not considered, there is a large gap between the surface boundary determined according to the stripping ratio contour and the surface boundary of the open-pit mine after actual mining. The amount of ore and rock calculated by the realm is seriously inconsistent with the real situation, and cannot meet the actual production needs of the mine

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