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A comprehensive effect evaluation method for thermobaric explosives in semi-closed tunnel explosions

A technology of thermobaric explosives and evaluation methods, which can be used in measurement devices, instruments, scientific instruments, etc., and can solve problems such as incompleteness and inaccuracy

Active Publication Date: 2017-09-08
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For above-mentioned defect or deficiency of existing evaluation technology, the object of the present invention is to propose a kind of evaluation method of the comprehensive effect of thermobaric explosive explosion based on " generalized explosion TNT equivalent " concept, solves the current evaluation of thermobaric explosive based on single explosion Incomplete and inaccurate problems caused by the effect, to achieve the purpose of comprehensive evaluation of multiple effects of temperature and pressure explosion

Method used

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  • A comprehensive effect evaluation method for thermobaric explosives in semi-closed tunnel explosions
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  • A comprehensive effect evaluation method for thermobaric explosives in semi-closed tunnel explosions

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] According to the above method, the inventor evaluated the comprehensive explosion effect of the thermobaric explosive of formula 1 in a semi-closed tunnel environment.

[0087] The test explosion tunnel has a width of 2m, a height of 2.5m, a round arch at the top, a tunnel length of 80m, and a blast carrying capacity of less than 5kgTNT equivalent. Evaluation of thermobaric explosives, TNT is cylindrical, with a mass of 2kg and a density of 1.85g / cm 3 .

[0088] Table 1 is the equipment and status used in the test, and Table 2 to Table 5 are the test measurement results.

[0089] Table 1 List of test equipment equipment status

[0090]

[0091] Table 2 Measurement results of shock wave effect characterization parameters

[0092]

[0093] Table 3 Measurement results of thermal effect characterization parameters

[0094]

[0095] Table 4 Measurement results of wind pressure effect characterization parameters

[0096]

[0097] Table 5 Measurement results o...

Embodiment 2

[0106] According to the above method, the inventor evaluated the combined explosion effect of formula 2 thermobaric explosive in a semi-closed tunnel environment.

[0107] The test blast tunnel is the same as Example 1. The evaluation formula 2 is a cylindrical explosive with a mass of 2kg and a density of 1.88g / cm 3 .

[0108] The equipment used in the test is the same as in Example 1, and Table 6-Table 9 are the test measurement results.

[0109] Table 6 Measurement results of shock wave effect characterization parameters

[0110]

[0111] Table 7 Measurement results of thermal effect characterization parameters

[0112]

[0113] Table 8 Measurement results of wind pressure effect characterization parameters

[0114]

[0115] Table 9 suffocation effect characteristic parameter measurement results

[0116]

[0117] According to the data in Table 6 and the empirical formula of shock wave pressure peak and impulse, the TNT equivalent of the shock wave overpress...

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Abstract

The invention discloses a comprehensive effect evaluation method for an explosion of a thermobaric explosive in a semi-closed tunnel. According to the method, a data acquiring method, a measuring point layout method and a data processing method of thermobaric explosion effect description parameters in a closed tunnel environment are determined according to the explosion effect characteristics of the thermobaric explosive in the closed tunnel environment, and then by compairing with a same-mass TNT explosion effect, a comprehensive effect TNT equivalent weight evaluation method for the thermobaric explosive explosion is built. The defect that at present, the explosion effect of the thermobaric explosive is described and evaluated by a single parameter is overcome, the explosion effect of the thermobaric explosive in the semi-closed tunnel environment is comprehensively reflected, an evaluation result is more scientific and reasonable, and the method is suitable for study on a thermobaric explosive formula and evaluation on the explosion effect.

Description

technical field [0001] The invention relates to an evaluation method for the explosion effect of thermobaric explosives, in particular to an evaluation method for the comprehensive effect of thermobaric explosives explosion in a semi-closed tunnel environment based on the generalized TNT equivalent concept. Background technique [0002] The energy release of thermobaric explosives has three-stage characteristics, which produce special explosive effects different from traditional high-energy explosives, especially in the airtight and semi-airtight spaces. The damage effect on targets and biochemical targets is more significant. Therefore, in the development process of thermobaric explosives, Accurately evaluating the explosion effect of thermobaric explosives, better regulating the time-space distribution of explosive energy release in thermobaric explosives, optimizing the design and controlling the explosion effects of thermobaric explosives have significant engineering appl...

Claims

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Application Information

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IPC IPC(8): G01N33/22
CPCG01N33/227
Inventor 李芝绒张玉磊蒋海燕袁建飞翟红波
Owner XIAN MODERN CHEM RES INST
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