Open pit mine cast blasting effect analysis method

An analysis method and technology for open pit mines, applied in special data processing applications, instruments, electrical digital data processing, etc., which can solve the problems of neglecting data fuzziness, randomness and discreteness.

Inactive Publication Date: 2016-06-29
LIAONING TECHNICAL UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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However, these studies inevitably ignore the ambiguity, ra

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  • Open pit mine cast blasting effect analysis method
  • Open pit mine cast blasting effect analysis method
  • Open pit mine cast blasting effect analysis method

Examples

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Effect test

Embodiment Construction

[0050] In order to illustrate the application process and effectiveness of the evaluation method, an application example of a mine is given below.

[0051]An open-pit mine is a coal mine affiliated to Fuxin Mining Group. Four blasting operations were carried out on different slopes of the open-pit mine. According to the slope shape and rock mass conditions, different explosive unit consumptions were selected, and the limit vibration velocity, effective throwing rate, loose coefficient, etc. were measured during and after the blasting process. The evaluation parameters of the blasting effect of the four blasting operations are shown in Table 5.

[0052] Table 5: Numerical values ​​of blasting effect indicators in open-pit mines

[0053] sample

[0054] Calculate the data x of the i-th index i The membership degree of belonging to a level of throwing effect. The calculation process of the degree of membership is illustrated by the unit consumption of explosives in s...

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Abstract

The invention discloses an open pit mine cast blasting effect analysis method which is characterized in that an AHP-CM evaluation method is provided for making research on a relation of an open pit mine cast blasting operation effect and a cast blasting influence factor and determining the cast blasting effect. The method comprises the following steps: determining that cast blasting effect influence factors mainly comprise unit explosive consumption, a limit vibration speed, an effective cast rate and a bulk factor according to related documents and open pit mine cast blasting field experiences, and grading cast blasting effects; representing a relation between the cast blasting factors and the cast blasting effects by virtue of the characteristic of a cloud model (CM) that data discreteness, fuzziness and randomness can be represented; obtaining weights of influence of these factors on the cast blasting effects by virtue of AHP; finally obtaining cast blasting effect grades of each group of influence factors. The method can be used for cast blasting effect analysis.

Description

technical field [0001] The invention relates to mining engineering, in particular to analyzing the effect of blasting. Background technique [0002] Cast blasting ("cast blasting" for short) is a blasting technique that throws rocks away from the original site according to engineering requirements. Commonly used directional blasting includes single-sided, double-sided, upward, and multi-directional throwing, as well as enhanced throwing or one-sided throwing and loose blasting on the other. Throwing blasting can throw a large amount of stones to the required location of the project, which is beneficial to speed up the progress of the project and shorten the construction period, which is beyond the comparison of manual work or general machinery. Open-pit mine blasting is an efficient and cost-saving blasting technology. It uses the energy generated by explosive explosion to throw the blasting rock mass into the open-pit mine goaf. Usually, the effective throwing rate can rea...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 刘金璋李莎莎刘北战崔铁军
Owner LIAONING TECHNICAL UNIVERSITY
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