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co 2 Obtaining method of blasting strain energy conversion coefficient and equivalent explosive calculation formula

A technology of conversion coefficients and calculation formulas, which is applied in the directions of material explosiveness, complex mathematical operations, ammunition, etc., and can solve problems such as energy waste in blasting rock.

Inactive Publication Date: 2021-04-27
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Abstract
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  • Application Information

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Problems solved by technology

At present, the rock-breaking hole network parameters of carbon dioxide blasting in practical engineering applications are often determined by engineering experience, which causes a waste of blasting rock-breaking energy to a certain extent.

Method used

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  • co <sub>2</sub> Obtaining method of blasting strain energy conversion coefficient and equivalent explosive calculation formula
  • co <sub>2</sub> Obtaining method of blasting strain energy conversion coefficient and equivalent explosive calculation formula
  • co <sub>2</sub> Obtaining method of blasting strain energy conversion coefficient and equivalent explosive calculation formula

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Embodiment Construction

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0038] Please refer to figure 1 , an embodiment of the present invention provides CO 2 The method for obtaining the blasting strain energy conversion coefficient and equivalent explosive calculation formula includes the following steps:

[0039] S101: In the rock mass with the same degree of joint development and lithology, conduct the funnel test of carbon dioxide blasting funnel with variable buried depth and No. 2 rock emulsion explosive blasting with single hole with variable buried depth, and count the single hole carbon dioxide at the optimal buried depth Blasting funnel volume V c and the explosive blasting funnel volume V e ; The optimal buried depth includes the optimal buried depth L for carbon dioxide blasting c and No. 2 rock emulsion exp...

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Abstract

The present invention proposes a CO 2 The method for obtaining the blasting strain energy conversion coefficient and the equivalent explosive calculation formula is based on the carbon dioxide blasting funnel test and the explosive blasting funnel test, comparing the rock strain energy coefficients under different blasting sources in the same lithology, and obtaining the carbon dioxide blasting strain energy conversion coefficient α ; The carbon dioxide No. 2 rock emulsion explosive equivalent W calculated by the comparison formula c The equivalent charge Q of No. 2 rock emulsion explosive obtained from the test c , calculate and obtain the equivalent correction coefficient δ of the No. 2 rock emulsion explosive of carbon dioxide blasting, and obtain the equivalent calculation formula of the No. 2 rock emulsion explosive of carbon dioxide blasting; this method can be effectively applied to the pre-test of the parameter design of the rock breaking hole network of carbon dioxide phase change blasting; the present invention The beneficial effect of the provided method is that the operation is simple, the test cost is low, the feasibility is good, and the carbon dioxide blasting can effectively guide the design of rock hole network parameters.

Description

technical field [0001] The invention relates to the field of blasting engineering, in particular to CO 2 The acquisition method of blasting strain energy conversion coefficient and equivalent explosive calculation formula. Background technique [0002] Carbon dioxide blasting technology is a non-explosive earthwork blasting technology, which has the advantages of small blasting vibration, small dust, no spark, easy control, stable peak pressure and long duration. Carbon dioxide blasting technology was invented in the last century, and has been widely used in rock and soil excavation projects in sensitive environmental areas such as coal mines, hospitals, schools, etc. In addition, this technology can also be used in jade mining, underwater blasting, pile wells In excavation and microseismic monitoring, its application prospect is broad. Due to the short development time of this technology, the research on its rock-breaking mechanism and rock-breaking design method is still...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/54G01N33/22F42B35/00G06F17/11
CPCF42B35/00G01N25/54G01N33/227G06F17/11
Inventor 周盛涛罗学东蒋楠张诗童唐啟琛
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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