A Design Method of Internal Drainage Process for Metal Open-pit Mine Slope Turning into Deep Concave Stage

Abstract

An internal drainage process design method for a metal open-pit mine hillside to transition into a deep concave stage, which relates to the field of open-pit mine mining technology and includes step 1. During the transition period when a metal hillside open-pit mine begins to transition to deep concave mining, zoning mining is used to advance, so that The stope is divided into different zones, namely the first mining area and the rear mining area; Step 2 is to arrange the development system on the final boundary of the first mining area. After the first mining area is close to the side, fixed routes will be built, and temporary roads will be built less. The ore rock adopts fixed roads that have been backed up; step three is to dig trenches and set up temporary roads on the other side. As the first mining area gradually bottoms out, plan the distance from the post-mining area to the first mining area one to two years in advance. The drainage line should be used to properly mine the post-mining area; Step 4. If the pit in the first mining area has enough space, an internal drainage area can be set up in the first mining area. The mining area and internal drainage area in the first mining area should be left spatially Inner rowing can begin when there is sufficient safety distance.

Description

technical field [0001] The invention relates to the technical field of open-pit mining, in particular to an internal drainage process design method for metal open-pit mines when the slope turns into a deep concave stage. Background technique [0002] Our country has always faced the national conditions of low per capita resources and insufficient high-quality resources. The total amount of resources is large and the endowment is not good. Small, small and scattered structural contradictions have existed for a long time. In order to realize a green mine, the structure of the existing mine must be adjusted and optimized, and the external dump site has a lot of room for adjustment. First, the external dump site occupies a large amount of land for a long time, resulting in a great waste of resources and land resources, which is not in line with the national concept of green mines; second, the monitoring and management of the external dump site are not in place, and landslides a...

AI Technical Summary

Problems solved by technology

The main reason is that the ore bodies of metal deposits are mostly inclined or sharply inclined, and the strike length is short, which makes it difficult to form internal drainage conditions.

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