Test system and method for simulating impact of terrorist attack surface blast on gas pipeline

Abstract

The invention provides a test system for simulating the impact of a terrorist attack surface blast on a gas pipeline. The system comprises an environmental soil layer, an explosive charge, the gas pipeline and a measuring device; the environmental soil layer comprises a miscellaneous fill layer at the upper layer and a silty clay layer at the lower layer; one end of the gas pipeline is sealed, theother end of the gas pipeline is provided with a pressurizing port, and the gas pipeline is arranged between the miscellaneous fill layer and the silty clay layer; the explosive charge is arranged atthe surface of the miscellaneous fill layer, and the distance from the explosive charge to one end and the distance from the explosive charge to the other end are equal to each other; the measuring device comprises a soil pressure gauge, an acceleration sensor, a plurality of strain gauge sets and a plurality of vibration speed testers, the soil pressure gauge and the acceleration sensor are arranged in the miscellaneous fill layer, all of the strain gauge sets are arranged on the outer wall of the gas pipeline, and all the vibration speed testers are arranged in the gas pipeline. The test system for simulating the impact of the terrorist attack surface blast on the gas pipeline has the advantages that terrain monitoring of the gas pipeline is incomplete, and the dynamic response and destruction mechanism of the terrorist attack surface blast on the gas pipeline are disclosed.

Description

technical field [0001] The invention relates to the technical field of blasting and pipeline engineering, in particular to a test method for simulating the impact of terrorist attack ground explosions on gas pipelines. Background technique [0002] With the development of urbanization in China, the pipelines used for oil, gas, water, etc. are almost the most important lifeline of the city. However, these pipelines are used by processing industries, explosive factories, open-pit mines, quarries, public works, Or even the threat of an explosion (sabotage or terrorist attack) near a deliberate pipeline. Unfortunately, terrorist attacks are on the rise, and in recent years there have been multiple explosions along the route of oil and gas pipelines. Existing studies on the explosion response of buried gas pipelines generally focus on finding a safe explosion distance when the pipeline does not undergo plastic deformation, and are mostly limited to on-site detection and numerica...

AI Technical Summary

Problems solved by technology

Existing studies on the explosion response of buried gas pipelines generally focus on finding a safe explosion distance when the pipeline does not undergo plastic deformation, and are mostly limited to on-site detection a

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