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A method of determining the limit of surface mining

A technology of mining realm and open-pit, applied in surface mining, earthwork drilling, underground mining, etc., can solve the problems of large repeated workload, low design efficiency, poor practicability, etc., achieve large stripping of infrastructure, reduce ore loss and The effect of dilution and long infrastructure construction time

Active Publication Date: 2017-11-21
ANHUI MASTEEL ENG & TECH GRP
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AI Technical Summary

Problems solved by technology

[0010] Aiming at the problems of heavy repeated workload, low design efficiency, cumbersome methods and poor practicability in delineating the final state of open-pit mines in the prior art, the present invention provides a method for determining the mining state of open-pit mines

Method used

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  • A method of determining the limit of surface mining
  • A method of determining the limit of surface mining

Examples

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Embodiment 1

[0041] Embodiment 1 does not need to protect the building (structure) structure situation for mine periphery

[0042] A method of determining the limits of open pit mining, incorporating figure 1 and figure 2 , the steps are:

[0043] Step 1. First determine the technical parameters required to delineate the final mining boundary of the open-pit mine: step height a, step slope angle b, safety platform width c, cleaning platform width d, final slope angle e, minimum bottom width of the open-pit stope f .

[0044] Step 2: Draw the mining right scope line approved by the mining license on the topographic and geological plan of the mine deposit, and the slope top line of the uppermost step of the open-pit stope shall be arranged directly along the mining right scope line.

[0045] Step 3: form the first step 1, delineate the second step 2, the third step 3... the N steps N. Until the minimum mining elevation approved by the mining license is reached or the bottom width of th...

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Abstract

The invention discloses a method for determining surface mine exploiting limit, and belongs to the field of mine exploiting design. The method comprises the steps that 1, the economic reasonable stripping ratio is determined according to the economic rationality; 2, feasibility, safety and reliability of the technology serve as principles, and open mine final slope forming elements are determined according to existing design specifications and safety procedures; 3, on a topographical and geological map and a geological section map of a deposit serving as a design basis, an upper port of an open mine final realm is delimitated along a mining right range line, and the mining right range line forms a bench edge of a first step; 4, according to the open mine slope forming elements determined in the second step, the steps are delimitated in sequence from top to bottom; 5, in the process of delimitating the final exploiting realm, the exploiting realm is optimized, and meanwhile a transportation system L is arranged and exploited; 6, the layered ore-rock volume and the average stripping ratio Np in the open mine exploiting realm are calculated. The method for determining the surface mine exploiting limit reduces workload, the design efficiency is high, the method is simple, and the practicability is good.

Description

technical field [0001] The invention relates to the field of mine mining design, in particular to a method for determining the mining boundary of an open-pit mine. Background technique [0002] Open-pit mining is the main method of mining mineral resources in my country, which has the characteristics of large production scale and good safety. Compared with underground mining, there are many advantages, but the disadvantage is also very obvious, that is, a large amount of rock must be stripped while mining ore. Therefore, a preliminary mining design that is technologically advanced, economically reasonable, and safe and reliable is very important to rationally utilize mineral resources, save land, protect the environment, and improve economic benefits. The core issue of the preliminary design of open-pit mining is the delineation of the final mining boundary of the open-pit mine. [0003] The existing method for delineating the boundary of open-pit mining is usually to deli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/26
Inventor 胡军尚
Owner ANHUI MASTEEL ENG & TECH GRP
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