Blasting demolition construction key technology and construction method of intersecting-parallels-shaped high-rise building

Abstract

The invention discloses a blasting demolition construction key technology and construction method of an intersecting-parallels-shaped high-rise building, and aims at providing an economical and quick blasting demolition construction method of an intersecting-parallels-shaped high-rise building. The construction method is small in engineering amount, low in construction cost and good in blasting effect. The construction method comprises the following steps that a, division pretreatment is carried out on the building, wherein U-shaped and T-shaped cutting seams are arranged in the center direction by bypassing a core barrel, the building is divided into a part A and a part B, and the whole core barrel is cut and merged into the part B; b, blasting cutting openings are formed in the bottoms of the divided building, wherein the blasting cutting openings are formed in the part A, the part B and the core barrel based on the high-rising building blasting demolition principle respectively; c, frame structure predemolition is carried out on a few key positions of the divided building needing blasting demolition; d, holes are drilled and checked; e, charging and protection construction are carried out; and f, networking, alerting and detonation are carried out. The blasting demolition construction key technology and construction method is applied to the technical field of building blasting demolition.

Description

technical field [0001] The invention relates to a key technology and method for rapid blasting demolition construction of a well-shaped high-rise building. Background technique [0002] With the improvement of anti-seismic requirements for buildings, buildings with more than 10 floors generally use shear walls to enhance the anti-seismic performance of the structure. High-rise buildings mainly include frame-shear structure, frame-tube structure, full shear wall structure, steel structure, etc. It is precisely because of the existence of shear walls and core tubes that the firmness and stability of the building structure are increased, and the difficulty of pre-demolition, dumping, disintegration and fragmentation of old buildings is greatly increased. For frame-tube structure buildings, the core tube is self-contained and has a good integrity. The core tube is located in the middle of the building. When demolishing by blasting, the pre-demolition construction project is lar...

AI Technical Summary

Problems solved by technology

At the same time, as the surrounding environmental conditions for the demolition of urban buildings become more and more complex and the collapse space becomes smaller and smaller, the difficulty of demolition and blasting becomes more and more difficult, and demolition and blasting are also facing certain challenges.

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