A method for disassembling and demolishing exist bridges

Abstract

A method for disassembling and dismantling exist bridge includes such steps as dividing secant line, setting hoisting hole and mounting hanging bars, cutting existing bridge with diamond cutting ropeto obtain a plurality of cutting work blocks, lifting and transporting that cutting work blocks to a predetermined place by hoisting vehicle, removing the cutting work blocks, and removing the cuttingwork blocks. By adopting the technical proposal provided by the invention, By using rope saw to dismantle the existing bridge, Safer operation, Noise is relatively low, Less dust is lifted during theoperation, reducing the impact on the surrounding environment, Compared with the prior art, no special demolition platform is required, no blasting operation is required, the construction process isrelatively simple, the construction is convenient, and a large amount of enclosure operation is not required, which reduces the energy consumption of the cutting operation, simplifies the constructionprocess, shortens the construction period, reduces the construction input cost, and improves the economic benefit of the enterprise.

Description

technical field [0001] The invention relates to the technical field of bridge demolition construction, in particular to a construction method for decomposing and demolishing existing bridges. Background technique [0002] With the continuous development of road and bridge construction, some bridges need to be demolished or rebuilt due to design life, planning and design, engineering conflicts, accidents and other reasons. In the implementation of demolition, construction methods such as blasting or mechanical demolition are generally used for demolition, which often need to occupy a large area of ​​existing roads and affect traffic. Construction operations may endanger driving safety at any time, affect the lives of surrounding residents, and cause problems such as pollution of existing rivers. , the scene is often a mess. At the same time, when demolition operations are carried out in this way, it is often necessary to invest a large amount of various resources and consume...

AI Technical Summary

Problems solved by technology

In the implementation of demolition, construction methods such as blasting or mechanical demolition are generally used for demolition, which often need to occupy a large area of ​​existing roads and affect traffic. Construction operations may endanger driving safety at any time, affect the lives of surrounding residents, and cause problems such as pollution of existing rivers. , the scene is often a mess

At the same time, when demolition operations are carried out in this way, it is often necessary to invest a large amount of various resources and consume a large amount of energy. The construction period is long, the construction cost is high, and the noise pollution is relatively large, which affects the normal production activities and travel of residents. greater impact

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