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A nested in-situ controlled blasting demolition method for conical buildings

A technology for controlling blasting and building, which is applied in the direction of blasting, etc., to achieve good promotion and application prospects, direct economic benefit improvement, and simple process effects

Inactive Publication Date: 2017-12-22
张建平
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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a conical building stacking type in-situ controlled blasting demolition method, aiming to solve the world-class technology for demolition of towering reinforced concrete conical buildings (structures) in a complex environment without collapse problem

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  • A nested in-situ controlled blasting demolition method for conical buildings
  • A nested in-situ controlled blasting demolition method for conical buildings

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Embodiment

[0030] First, according to the geometric characteristics and symmetry of the inverted cone of the conical building, divide the conical building into sections according to the actual height, structure and site requirements, and set the decomposition height as L n (At present, the height of the general conical building is below 240 meters, which can be divided into 2-4 sections);

[0031] Secondly, observe the division of conical buildings and set an annular gap under each section. The setting of the height of the annular gap must satisfy 1. The maximum number of stacks of conical buildings. 2. The height of the upper conical building is greater than that of the lower conical building. Shaped building height, where the formula for calculating the maximum number of stacks is: (N max is the maximum nesting number, D nxn is the inner diameter of the conical building in the previous section, D nw is the outer diameter of the nth section of the conical building, K is the stacking...

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Abstract

A nested in-situ control blasting demolition method for conical buildings, which makes full use of the geometric characteristics and symmetrical structure of conical buildings to reasonably divide them into sections, and sets an annular gap at the bottom of each section according to the nesting conditions. High calculation, blast hole setting, directional device design and digital electronic detonators are used to detonate row by row from bottom to top, symmetrically destroying the reinforced concrete within the range of the annular gap, so that the segment-by-section conical buildings can be accurately inserted into the bottom section of the chimney , the diffusion range of the demolition body is limited to the chimney. The patent is novel in design and simple in process. The demolished conical building falls into the conical structure accurately by means of segmentation, orientation, blasting, and nesting. The diffusion range is controlled within the conical structure without affecting the normal production and operation of surrounding factories. The daily life of residents complies with the national clean, environmental protection and energy-saving policy. Innovation and energy conservation run through the whole process of demolition, effectively solving the world-class technical problem of demolition of towering reinforced concrete conical buildings (structures) in a complex environment without collapse sites.

Description

technical field [0001] The invention relates to a nested in-situ control blasting demolition method for conical buildings. Background technique [0002] The theory of controlled blasting demolition in today's world is becoming more and more perfect, and the controlled blasting demolition technology of high-rise reinforced concrete buildings (structures) has also been further improved, such as: directional collapse, folding collapse, and in-situ collapse blasting demolition technology, which is fast, economical and safe. The demolition technology of high-rise buildings (structures) is one of the most competitive methods in the industry. [0003] However, with the rapid development of urban construction and the increasing modernization and continuous implementation of industrial technical transformation projects, most of the towering buildings (structures) such as chimneys that need to be demolished and rebuilt are located in densely populated towns or industrial areas with a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42D1/00F42D3/02
Inventor 张建平
Owner 张建平
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