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Strip mine mining boundary and mining program collaborative optimization method under complex coal seam conditions

A mining realm and collaborative optimization technology, applied in underground mining, multi-objective optimization, design optimization/simulation, etc., can solve problems such as synchronous collaborative optimization of mining realm and mining program, and inability to synchronize analysis

Pending Publication Date: 2021-01-12
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to overcome the technical defects that the optimization method in the above prior art cannot analyze the above influencing factors synchronously, and cannot synchronously optimize the mining boundary and the mining program

Method used

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  • Strip mine mining boundary and mining program collaborative optimization method under complex coal seam conditions
  • Strip mine mining boundary and mining program collaborative optimization method under complex coal seam conditions
  • Strip mine mining boundary and mining program collaborative optimization method under complex coal seam conditions

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Embodiment 1

[0117] like Figure 1-9 As shown, the present invention provides a method for collaborative optimization of open-pit mine mining boundary and mining program under complex coal seam conditions, wherein, Figure 1-7 middle:

[0118] β is the side slope angle of the inner dump, °;

[0119] α is stope slope angle, °;

[0120] l c is stope advance distance, m;

[0121] l p is the advancing distance of the inner dump, m;

[0122] m 1 is the tracking distance of the inner row before the development of the inner dump in the stope, m;

[0123] m 2 is the tracking distance of the internal discharge after the development of the internal dump in the stope, m;

[0124] h is the height of the inner dump, m;

[0125] L c is the average working line length of the stope, m;

[0126] L p is the average working line length of the dump, m.

[0127] The optimization method includes the following steps:

[0128] Step S1, constructing the mining boundary model and the boundary model o...

Embodiment 2

[0217] The Huolinhe Coalfield is located in Huolingol City and Jhalut Banner, Inner Mongolia Autonomous Region. It is No. 2 coal with geological reserves of 11.92 billion tons, also known as aged lignite, with an average calorific value of 3100 kcal / kg. From north to south, the coalfield is divided into four exploration areas: the northern census area, the Shaerhure area, the second open-pit area, and the southwestern detailed investigation area. Huolinhe Coalfield No. 1 Open Pit Mine is 10km long from north to south, 3.4km wide from east to west, and has an approved mining surface area of ​​34.0013km 2 , mining depth from 864m to 432m elevation. The geographical coordinates are: east longitude 119°08′~119°46′, north latitude 45°10′~119°40′.

[0218] The Huolin Henan Open-pit Mine is located in Shaerhure Town. It was developed and constructed on September 1, 1981. The designed annual production capacity is 3 million tons. The scale of t annual output was handed over to produ...

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Abstract

The invention provides a strip mine mining boundary and mining program collaborative optimization method under a complex coal seam condition. The optimization method comprises the steps that a miningboundary model and an external dumping site boundary model are constructed; constructing a three-dimensional geological model; determining a mining program scheme; determining a production stripping ratio, compiling a strip mine stripping and mining project progress plan, and determining a stripping project position and a project amount of each year; planning each engineering position in the stopeand the flow direction and flow of each stripped object, and optimizing the utilization scheme of the internal and external waste dump; the service range of each mining process of stripping and coalmining and a process system arrangement scheme are optimized; and determining an optimal mining procedure. By means of the optimization method, synchronous collaborative optimization can be well conducted on the mining boundary and the mining program, operability is high, the stripping mining cost of the strip mine can be remarkably reduced, and meanwhile coordination of stripped object discharging and dumping site planning can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of open-pit mining, and in particular relates to a collaborative optimization method for open-pit mine mining boundary and mining program under complex coal seam conditions. Background technique [0002] Within the scope of open-pit mining, the distribution of coal seam development, coal quality, and thickness of overlying rocks is more or less uneven. Therefore, different mining procedures will affect the year-to-year coal production, quality and production stripping ratio of open pit mines. Different mining procedures will also affect the development and transportation system of open-pit mines and the distance of coal stripping, which in turn will affect the cost of coal and rock transportation and the overall economic effect of open-pit mines. There are many factors that affect the mining process of open pit mines, the main ones are as follows: [0003] (1) Coal seam occurrence conditions. Compared wit...

Claims

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Application Information

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IPC IPC(8): G06F30/20E21C41/28G06F111/04G06F111/06
CPCG06F30/20E21C41/28G06F2111/04G06F2111/06
Inventor 刘光伟张靖曹博柴森霖吕进国于秋宇李浩然郭伟强黄云龙王青旭王东刘威
Owner LIAONING TECHNICAL UNIVERSITY
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