Construction method for polyvinyl pipe passing through mad flat and shallow water river channel

A construction method and polyethylene technology, applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., can solve problems such as limiting the application of polyethylene plastic pipes, and achieve high construction efficiency

Inactive Publication Date: 2005-03-02
上海水务建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is not yet a very mature construction method for those shallow river courses, tidal flats, swamps, and those construction points that are sometimes underwater and sometimes exposed as the tide ebbs and flows, which greatly limits the construction of the construction site. The application of vinyl plastic pipe, an excellent pipe material, in the above occasions

Method used

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Embodiment Construction

[0019] Below in conjunction with embodiment further illustrate construction method of the present invention.

[0020] The construction point of this embodiment is relatively close to the sea estuary, and the construction water area is a tidal river section. The characteristics of the river channel are: the width is 2800m, the side banks are mainly floodplains and swamps, 80% of the riverbed is exposed at low tide, the maximum water depth is 2.0m, and the flow velocity 2.1 m / s; most of the surface layer of the river channel is about 0.5m thick silt, the following is medium sand; most of the surface layer of the side bank is about 1.0m thick silt, below is quicksand.

[0021] The pipeline to be laid is a polyethylene plastic water supply pipeline with a diameter of 630mm.

[0022] The construction method and steps of this embodiment are as follows.

[0023] a. According to the design requirements, use GPS positioning system, total station and depth sounder to recheck and measur...

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Abstract

The invention discloses a constructing method for polythene pipes to penetrate tidal flat and shallow river bed. The method includes following steps: samples the pipe position measurement, embeds wire protecting piles, forms construction control wires; uses correspondent appliance and method to dig grooves according to different geologic states and depth of river; underwater monitoring and groove amendment; pipes laying; pipe connecting; detection and process to pipe underwater; grooves filling; pipe pressure measuring; pipe rinsing and sterilization. The invention uses correspondent construction method according to different states, solves the river spanning construction of pipe in tidal flat and shallow river bed.

Description

technical field [0001] The invention relates to a river-crossing construction method for polyethylene plastic pipes, in particular to a river-crossing construction method for polyethylene plastic pipes in tidal flats, swamps and shallow water channels. Background technique [0002] Polyethylene plastic pipes are mostly used on land, and the construction of long-distance cross-river pipelines is much more difficult than that on land. The construction methods under different river channel characteristics, different geology, and different climate environments cannot be exactly the same, and only suitable methods can be adopted according to the actual conditions of the construction site. For laying polyethylene plastic pipes at the bottom of the river where the river course is both deep and wide, its construction method can be solved by the method provided by the invention patent "Construction method for long-distance deep water crossing rivers of polyethylene plastic pipes" fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/16
Inventor 魏思平朱普霞杨祖光张青春蔡燕飞冯益戴炼炼
Owner 上海水务建设工程有限公司
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