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Demolition blasting method of cylindrical steel column structure building

A technology for buildings and steel columns, which is applied in the direction of building construction, construction, building maintenance, etc. It can solve the problems of poor blasting effect, high risk, and high labor intensity, so as to improve the degree of blasting damage and ensure the blasting effect.

Inactive Publication Date: 2018-11-30
ARMY ENG UNIV OF PLA +1
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  • Claims
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Problems solved by technology

[0002] In our country, there are a large number of steel structures that need to be demolished, and some of them are cylindrical steel column structures. Manual demolition is labor-intensive and dangerous. Mechanical demolition is used, and the demolition efficiency is low.
In a building with a cylindrical steel column structure, it is impossible to blast through holes, only exposed blasting, a large part of the energy is dissipated into the air, and the blasting effect is poor

Method used

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  • Demolition blasting method of cylindrical steel column structure building

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Such as figure 1 Shown, the blasting demolition method of tubular steel column structure building of the present invention comprises the following steps:

[0020] (1) Cut a notch 7 on the cylindrical steel column to be blasted, and the height and size of the notch 7 are determined according to the size of the cylindrical steel column to be blasted;

[0021] (2) pour water into the cylindrical steel column from the gap 7;

[0022] (3) The detonator detonator is penetrated in the conduit 8, and the string is connected to the inflatable bag, and the conduit 8, the inflatable bag, the string 5, the charge bag and the sinker 6 connected with the string are put into the cylindrical steel column Inside, a detonator can be connected between a plurality of charge packs, and each charge pack can also be connected with a detonator and pass through the conduit 8 at the sa...

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Abstract

The invention discloses a demolition blasting method of a cylindrical steel column structure building. The demolition blasting method comprises the following steps that 1, a gap is cut in a tubular steel column to be blasted; 2, the steel column is filled with water from the gap position; 3, a guide pipe, an inflation bag, a thin rope and a sinking block connected with the thin rope are put in thetubular steel column; 4, the inflation bag is put in the tubular steel column and is inflated; 5, the tubular steel column is filled with cement mortar to form a first concrete block, and the tubularsteel column is filled with cement mortar again to form a second concrete block after first concrete solidifies; 6, after curing is completed, a cartridge bag is blasted, and blasting of the tubularsteel column is completed. The gap is formed in the steel column and is filled with liquid water, the cartridge bag is put, the inflation bag is put and is filled with a thin layer of concrete, the liquid water is sealed in the steel column through concrete, the cartridge bag is blasted, the blasting destroying degree is greatly improved, and a blasting effect can be ensured.

Description

technical field [0001] The invention relates to a blasting demolition method for a tubular steel column structure building, which belongs to the field of blasting. Background technique [0002] In our country, a large number of steel structures need to be demolished, and some of them are cylindrical steel column structures. Manual demolition is labor-intensive and dangerous, and mechanical demolition is low in demolition efficiency. In the cylindrical steel column structure building, it is impossible to blast through holes, only exposed blasting, a large part of the energy is dissipated into the air, and the blasting effect is poor. Contents of the invention [0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a blasting demolition method for a building with a cylindrical steel column structure. Liquid water makes the charge explode in the steel column, which greatly increases the blasting effect and hig...

Claims

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Application Information

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IPC IPC(8): E04G23/08
CPCE04G23/08E04G23/081
Inventor 陈德志钟明寿徐全军龙源高福银赵长啸李本伟张南陈顺禄卢红标
Owner ARMY ENG UNIV OF PLA
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