Testing pit for single package test and stacking test of explosive

Abstract

The invention discloses a testing pit for a single package test and a stacking test of an explosive, and belongs to the technical field of explosion testing devices. The testing pit for the single package test and the stacking test of the explosive comprises a deep pit, an operating platform, a boundary enclosure wall and a wire mesh; the operating platform is arranged in the center of the deep pit; the wire mesh is arranged in the operating platform; and the boundary enclosure wall is arranged outside the operating platform. The testing pit is reasonable in design, easy to build, low in building cost, simple and convenient in test operation, high in safety and capable of completely absorbing and limiting hazards generated by explosion in the testing pit, effectively preventing potential safety risks, being repeatedly used for multiple times and meeting the standards and requirements of the United Nations on explosive tests.

Description

technical field [0001] The invention belongs to the technical field of explosive test devices, and in particular relates to a test pit for single package test and stacking test of explosives. Background technique [0002] The United Nations Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Part I, Sections 16.4 and 16.5, respectively, specify the single package test [Test 6(a)] and the stacking test [Test 6(b)] for the classification of explosives. )]Methods. The single package test is used to determine whether there is a mass detonation of the explosive, and the stack test is used to determine whether the detonation propagates from one package to another or from one unpackaged item to another. The requirements of the two test methods are relatively similar, and both require the package to be closed. The specific method is to place the package on a proof steel plate placed on the ground. The best sealing method is to use a container similar ...

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Problems solved by technology

However, after the test is over, the soil pit is prone to fragmentation and disintegration due to the impact of the explosion, and the next test cannot be carried out in the original soil pit. Re-excavating the soil pit will consume a lot of labor and time costs

[0007] In a patent that the inventor has applied for, a test pit for explosives single package test and stacking test (application number: CN201611148273.6) discloses a test pit for explosion, although the test pit can Repeated use, but the pit body is built based on the sample size of a period of time, and the test cannot be carried out if the sample exceeds the specification

And there is no anti-sedimentation plate at the bottom of the test pit. After repeated use, the ground will settle, which will affect the measurement of the test.

After the rain, because there is no drainage system, the accumulated water in the test pit cannot be removed for a long time, which affects the use

A test method for explosives single package test and stacking test (application number: CN201611147368.6) discloses a test method for explosives. This method has no operating platform and cannot effectively prevent the loose sand above from collapsing , which has a great impact on repeated tests of excavation. Only the explosive single product is placed in the test pit and buried in sand to test and verify the steel plate, which is not suitable for repeated tests in the actual operation process; and there is no explosion or combustion boundary, which is not conducive to Carry out a complete test on the test product to affect the test and test results

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