Self-explosion type concrete support and dismantling method thereof

Abstract

The invention discloses a self-explosion type concrete support and a dismantling method thereof. The support comprises an internal steel bar and concrete combined with the steel bar, wherein a static explosive is arranged on the steel bar in the concrete and sealed in a capsule, an injection channel connected with the capsule is reserved in the concrete, and the static explosive expands to open the capsule and strip the concrete around the steel bar after being injected with a liquid. The concrete support adopts self-explosion type explosion, and compared with a traditional static explosion method, the step of explosive drilling is omitted. The support is low in noise, small in flying dust and high in dismantling efficiency during dismantling.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a self-explosive concrete support and a removal method thereof. Background technique [0002] Concrete supports are often used in foundation pit excavation to ensure the safety of foundation pit excavation, and the removal efficiency of concrete supports seriously affects the construction of the main structure. [0003] Commonly used reinforced concrete support demolition methods include blasting demolition, static blasting demolition, mechanical demolition and manual jackhammer demolition, etc.; when explosives are blasted, the huge shock wave will cause great safety hazards to the surrounding tall and crowded buildings, and flying stones will It endangers the personal safety of pedestrians on the street, and the dust brings great inconvenience to the life of urban residents. Although static blasting is safe, silent and low-noise, it has many procedures and high c...

AI Technical Summary

Problems solved by technology

[0002] Concrete support is often used to ensure the safety of foundation pit excavation, and the removal efficiency of concrete support seriously affects the construction of the main structure

[0003] Commonly used reinforced concrete support demolition methods include blasting demolition, static blasting demolition, mechanical demolition and manual jackhammer demolition, etc.; when explosives are blasted, the huge shock wave will cause great safety hazards to the surrounding tall and crowded buildings, and flying stones will It endangers the personal safety of pedestrians on the street, and the dust brings great inconvenience to the life of urban residents.

Although static blasting is safe, silent and low-noise, it has many procedures and high cost

In order to achieve the effect of static explosion, it is necessary to cut off the gluten and stirrups, so it is not easy to popularize when demolishing a large number of reinforced concrete components

When the mechanical cannon is dismantled, the vibration is large, which is not conducive to controlling the deformation of the foundation pit, and the manual pneumatic pick removal takes a long time

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