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Perforation charge explosion method suitable for shear wall in blasting demolition

A shear wall and charge technology, applied in blasting and other directions, can solve the problems of large impact range, large amount of explosives used, waste of resources and manpower, etc., and achieve the effects of saving manpower, material and financial resources, controlling harmful effects, and precise blasting effects

Active Publication Date: 2021-06-01
江西荣达爆破新技术开发有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the overall blasting demolition has a huge impact range, which is difficult to control, and it is necessary to expropriate nearby houses to have the possibility of overall blasting
[0004] At present, the traditional method will produce a large amount of flying stones and smoke when blasting the wall, causing safety hazards; and the use of explosives is large, resulting in a waste of resources and manpower

Method used

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  • Perforation charge explosion method suitable for shear wall in blasting demolition
  • Perforation charge explosion method suitable for shear wall in blasting demolition
  • Perforation charge explosion method suitable for shear wall in blasting demolition

Examples

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Effect test

Embodiment 1

[0101] A kind of perforation charge explosion method applicable to shear walls in blasting demolition of the present invention comprises the following steps:

[0102] (1) divide the body of wall in the building that needs to be removed, described body of wall is divided into common body of wall and shear wall; Described shear wall is divided into large size shear wall and normal size shear wall;

[0103] (2) the perforation charging method of described large-scale shear wall comprises the steps:

[0104] S1, excavate the arched wall hole in the shear wall;

[0105] S2. Set two through holes on the top and bottom of the shear wall. The top hole is 0.5m away from the upper floor, and the bottom hole is 0.5m away from the lower floor. X-shaped energy-concentrating cutters are installed in the top hole and the bottom hole ;

[0106] S3. There is a set of horizontal tunnels between the top tunnel and the bottom tunnel, a part of the horizontal tunnels enter from the left wall, an...

Embodiment 2

[0123] A method for demolishing a super high-rise building, comprising the steps of:

[0124] Step 1. Set up the peripheral working platform of the building: build a convenient safety protection frame with a height of four floors and can move up and down on the periphery of the super high-rise building, mainly composed of steel pipes, baffles, protective nets, lifting equipment, etc.;

[0125] Step 2. Pre-demolition: Take every two floors as a demolition unit, divide it into the first demolition unit and the second demolition unit from top to bottom, and so on until reaching the first floor of the building; then pre-demolition of the first demolition unit For demolition, according to the principle of well-shaped, some columns in the inner layer of the symmetrical reserved frame will not be blasted to ensure the overall stability of the building during the blasting process.

[0126] Step 3, perforating charge: Divide the first demolition unit into a blasting area and a static c...

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Abstract

The invention discloses a perforation charge explosion method suitable for a shear wall in blasting demolition. The perforation charge explosion method comprises a perforation charge explosion method utilizing a large-size shear wall and a perforation charge explosion method utilizing a common-size shear wall. The method utilizing the large-size shear wall comprises the steps of S1, digging an arch-shaped wall hole in the shear wall; S2, forming two through hole channels in the top and the bottom of the shear wall; S3, forming a set of horizontal hole channels between the top hole channel and the bottom hole channel; and S4, arranging explosive packages and detonating cords in the horizontal hole channels at intervals. The method utilizing the common-size shear wall comprises the steps of (1) forming the two through hole channels in the top and the bottom of the shear wall; and (2) installing W-shaped double-layer energy-gathered cutters on the two faces of the shear wall correspondingly. According to the perforation charge explosion method suitable for the shear wall in blasting demolition, the application of the wall body explosive amount within the blasting range is proper, only the strength of the shear wall is weakened, concrete does not need to be thrown away from the original position too much, the requirement for rapid crushing and clearing is met, and the harm effect generated by blasting is fundamentally controlled.

Description

technical field [0001] The invention relates to a perforation charging explosion method suitable for shear walls in blasting demolition, and belongs to the technical field of building demolition. Background technique [0002] In recent years, with the increase of municipal and traffic reconstruction projects, more and more demolition and blasting projects, demolition and blasting should be based on project requirements and the characteristics of the surrounding environment, considering the structural characteristics of the building, to determine the overall plan for demolition and blasting. [0003] Integral blasting demolition has great disadvantages. Integral blasting demolition selects the load-bearing components of some floors of the building for blasting, causing structural damage and instability, resulting in in-situ or directional collapse; and it is necessary to strictly control various harmful effects of blasting. Be careful, it is easy to cause various blasting acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/08F42D3/00
CPCF42D1/08F42D3/00
Inventor 张锦华阎子君贺五一田伟何作强杨智旭傅水华叶小军刘绍厚
Owner 江西荣达爆破新技术开发有限公司
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