Explosion-expansion, pore-forming and column perfusion auxiliary device for building

Abstract

The invention relates to an explosion-expansion, pore-forming and column perfusion auxiliary device for a building. The explosion-expansion, pore-forming and column perfusion auxiliary device comprises a table ring, a cylinder base mechanism, expansion mechanisms, a silencing piece, an assembly base mechanism and an insertion rod mechanism; the cylinder base mechanism is arranged on the top surface of the table ring, the four sets of expansion mechanisms are arranged on the cylinder base mechanism, and the assembly base mechanism is arranged at the top end of the cylinder base mechanism; the insertion rod mechanism is installed in the assembly base mechanism so that the four sets of expanding mechanisms can move outwards, and the diameter range of the table ring is enlarged after the foursets of expanding mechanisms move outwards, so that power generated during explosive blasting can form destructive power in the left-right direction and enables upward destructive power to be blockedby a baffle, the blasting space is reduced, the blasting range is enlarged, and a larger space is blasted at the bottom of a blast hole; and when concrete is poured at the bottom of the blast hole, large-area condensation can be formed in the large space at the bottom, so that the aim that the bottom of a finally obtained concrete column achieves the higher strength is achieved.

Description

technical field [0001] The invention relates to the technical field of blasting auxiliary devices for building construction, and more specifically, to an auxiliary device for blasting and expanding hole-forming perfusion columns for construction. Background technique [0002] During civil construction, concrete columns are often poured on the selected foundation according to the needs. In order to improve the quality of the concrete column after pouring and improve its high support strength in actual use, it is necessary to use the drill on the foundation first. The hole equipment drills the pouring hole, and then pours cement into the pouring hole, so that the bottom of the final concrete column condenses in the pouring hole to achieve the purpose of improving the strength. At the same time, in order to improve the quality of the concrete poured in the pouring hole, the drill The bottom of the hole has a larger coagulation range, and it is also necessary to fill the bottom ...

AI Technical Summary

Problems solved by technology

[0003] When explosives are put into the bottom of the borehole for blasting, in addition to blasting the bottom of the borehole, part of the blasting force will be discharged upward from the borehole. The blasting force discharged upward will affect the destructive force of the blasting at the bottom of the borehole. The bottom pouring space obtained after the detonation will be smaller, resulting in a smaller concrete pouring area, and a smaller condensation area at the bottom of the concrete column, which makes the strength of the bottom of the concrete column smaller, and the blasting force discharged upwards results in a larger explosion during blasting. loud noise

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