Novel open-pit mining method suitable for steep slope topography

A technology of open-pit mining and a new method, which is applied in the field of open-pit mining on high and steep slope terrain, and in the field of open-pit mining on steep slope terrain, can solve the problem that the open-pit steep slope terrain cannot build transportation roads, etc., and achieve the effect of easy-to-obtain equipment and simple process

Inactive Publication Date: 2017-06-20
SINOSTEEL MAANSHAN INST OF MINING RES
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Problems solved by technology

[0006] The purpose of the present invention is to provide an unconventional, safe and feasible new open-pit mining method suitable for steep slope ter...

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  • Novel open-pit mining method suitable for steep slope topography
  • Novel open-pit mining method suitable for steep slope topography

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Embodiment Construction

[0021] In order to further describe the present invention, a new open pit mining method suitable for steep slope terrain of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] figure 1 The front view of a new method of surface mining suitable for steep terrain of the present invention is shown and combined with figure 2 It can be seen that a new method for open-pit mining that is suitable for steep slope terrain of the present invention adopts the following technical solutions:

[0023] 1) Divide the steep slope terrain into 4 steps;

[0024] 2) Arrange the stripping operation face along the strike, and divide a vertical stripping zone L every 14-16m in the vertical strike direction;

[0025] 3) According to the maximum excavation height of the hydraulic excavator 10, the step height is determined as H: the step height H is not greater than 1.5 times the maximum excavation height of the hydr...

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Abstract

The invention discloses a new open-pit mining method suitable for steep slope terrain. The steep slope terrain is divided into 2 to 4 steps, the stripping operation surface is arranged along the strike, and a vertical strip L is divided every 14 to 16m in the vertical strike direction. , the step height H is not greater than 1.5 times the maximum excavation height of the hydraulic excavator (10), and the width of the bottom loading platform (11) is greater than 18m, so as to meet the operation requirements of the mine transport vehicle (12), implement single-step operation, blasting operation Finally, the hydraulic excavator (10) is used for mining from top to bottom, from outside to inside, and gradually advances to the final side. The ore is unloaded to the bottom by the hydraulic excavator (10) from top to bottom, from inside to outside The loading platform (11) is transported out through the mining transport vehicle (12). The invention has the advantages of simple process, easy-to-obtain equipment, safety and feasibility, and effectively solves the problems of large steep slope terrain, impossibility to build transportation roads, and difficult construction when conventional step mining is adopted.

Description

technical field [0001] The invention belongs to the open-pit mining technology, and in particular relates to a method for open-pit mining on steep slopes, which can be used for open-pit mining on various steep slopes, and is particularly suitable for open-pit mining on high and steep slopes with slopes ranging from 50° to 65°. Background technique [0002] Open-pit mining refers to the process of stripping rocks and extracting ores using certain mining techniques and in a certain sequence of mining. Mineral occurrence conditions are different, and the mining process is different. The typical mining process is completed through the "drilling-loading-transportation" process, specifically perforation blasting, mining, transportation and soil discharge. The coordination and cooperation of these links is The key to completing your surface mining mission. In the traditional open-pit mining method, after the ore is blasted, the excavator shovels it, and the car directly transports...

Claims

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Application Information

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IPC IPC(8): E21C47/02
CPCE21C47/02
Inventor 王杰汪为平章林李家泉
Owner SINOSTEEL MAANSHAN INST OF MINING RES
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