Installation and construction method for large-diameter pipe bridge on ultra-wide river way

Abstract

The invention relates to an installation and construction method for a large-diameter pipe bridge on an ultra-wide river way. The installation and construction method mainly solves the technical problems that in the prior art, a river way is wide, hoisting by a crane cannot meet the construction requirement, a large-scale hoisting ship cannot reach a construction site due to the limitation of a city bridge, a temporary support cannot be erected, and closure construction cannot be conducted. The installation and construction method comprises the steps that firstly, a bridge pipe is hoisted by a truck crane to a floating transportation platform composed of two ships and a special steel support, and then a power tug is used for dragging the floating transportation platform to slowly move the floating transportation platform to the space between two concrete pipe bridge bearing platforms in position; secondly, cabins are filled with river water through water pumps, the water drafts of the ships fall due to the increase of the load, the steel pipe is erected on the concrete pipe bridge bearing platforms gradually, water continues being fed into the cabins to make the ships further sink until the ships and the support slowly move away from the position below the steel pipe bridge, and then a next steel pipe bridge is conducted.

Description

technical field [0001] The invention relates to a method for installing and constructing a pipe bridge, in particular to a method for installing and constructing a large-diameter pipe bridge in an ultra-wide river course. Background technique [0002] With the development of urbanization, the proportion of water supply and drainage pipeline projects in municipal infrastructure construction is also increasing, especially the application of large-diameter steel pipes in water supply projects. The application of large-diameter steel pipes in raw water pipes and tap water pipelines is also becoming more and more extensive. In the Jiangnan water town area. There are usually two different forms of design for pipelines crossing the river, one is the form of a pipe bridge, and the other is the form of an inverted siphon. The two different forms each have different advantages and disadvantages. Considering factors such as maintenance in the later period, the form of a pipe bridge ...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method for installation and construction of a large-diameter pipe bridge in an ultra-wide river channel, which mainly solves the problems in the prior art that the river channel itself is relatively wide, and the crane hoisting cannot meet the construction requirements, and large-scale suspended boats cannot reach the construction due to the restrictions of urban bridges. At the same time, there are technical problems such as the inability to erect temporary supports and the impossibility of closure construction.

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