Underwater anti-explosion protection structure based on shock wave reflection energy dissipation

Abstract

The invention provides an underwater anti-explosion protection structure based on shock wave reflection energy dissipation. The structure is characterized by comprising a concrete layer and a polypropylene layer, hollow glass beads are uniformly doped in the concrete layer, the near water surface is in the shape of continuously arranged regular rectangular pyramids in both the longitudinal direction and the transverse direction, and the included angle between the side surface and the bottom surface of each regular rectangular pyramid is 45 degrees; and the polypropylene layer is formed on thesurface of the near water surface of the concrete layer, the shape of the polypropylene layer is the same as that of the near water surface, the polypropylene layer is in a continuously arranged regular rectangular pyramid shape, and in the concrete layer, the true density of the hollow glass beads is 0.32-0.6 g / cm<3>, and the wall thickness of the hollow glass beads is 1-2 [mju]m. The underwateranti-explosion protection structure is remarkable in energy dissipation and anti-explosion effect, simple in manufacturing process, large in damping range and more excellent in emergency performance,can be widely applied to anti-explosion protection of various protection objects, and is particularly suitable for protection of wading buildings.

Description

Technical field [0001] The invention belongs to the field of anti-explosion protection, and specifically relates to an underwater anti-explosion protection structure based on shock wave reflection and energy dissipation. Background technique [0002] Faced with the huge wave of new military reforms, China’s national defense security is also facing real threats: the geographic environment is complex, the surrounding environment is hidden and endangered, the hostile forces are still active, and the competition for territorial waters sovereignty and maritime rights and interests is becoming increasingly fierce; worldwide, guidance and guidance The explosive power of precision-guided weapons such as artillery shells, laser-guided missiles, torpedoes, and the accuracy of their strike targets have been continuously improved; and the safety of important projects and equipment such as cross-sea, cross-river bridges, water transfer projects, large reservoirs, military ports, military ships...

AI Technical Summary

Problems solved by technology

[0003] At present, the protective measures against explosions on the market are mainly to set up explosion-proof walls or bubble curtains, relying on the concept of structural strength, ductility and energy absorption to resist explosion loads. The design of explosion-proof walls is bulky, high in construction costs, and complicated in construction; while polyurethane Foam, paper-type materials, and film materials have poor chemical stability and cause liquid pollution. They are not suitable for long-term use and the explosion-proof efficiency is only 36%-59%, which is difficult to promote on a large scale.

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