Pipe sinking construction method of inverted siphon culvert immersed across river section

A construction method and technology of immersed tubes, applied in caissons, infrastructure engineering, construction, etc., can solve problems such as increased error rate and construction difficulty, inability to control and adjust the synchronization of steel pipes, and damage to steel pipes, etc., to achieve weld quality Guaranteed detection, high construction efficiency, and increased safety

Inactive Publication Date: 2019-02-19
GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] However, the existing immersed pipe method needs to weld the pipe underwater, which greatly increases the error rate and construction difficulty, and the immersion of the entire steel pipe cannot control and adjust the synchronization of the steel pipe well, which may easily lead to damage to the steel pipe

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  • Pipe sinking construction method of inverted siphon culvert immersed across river section
  • Pipe sinking construction method of inverted siphon culvert immersed across river section

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0045] see Figure 1~2 , a kind of construction method of cross-river reverse culvert immersed pipe in a preferred embodiment of the present invention, using immersed pipe construction to realize cross-river reverse culvert, comprising the following steps:

[0046] The first step: the excavation of underwater trenches; by measuring the water depth and considering the historical water level increase, the long-arm hook machine is selected for underwater trench excava...

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Abstract

The invention relates to the technical field of pipe sinking engineering construction, and discloses a pipe sinking construction method of an inverted siphon culvert across a river section. The pipe sinking construction method comprises the steps of excavation of an underwater groove, construction of a gravel cushion, steel pipe preparation, steel pipe sinking, steel pipe hydraulic pressure test and backfilling of medium-coarse sand and dimension stones. Steel pipes are welded integrally on the land, the characteristics of high connecting opening quality, accurate alignment, high constructionspeed and guaranteed welding joint quality inspection are achieved, then overall sinking is performed in water, the process is relatively simple, the construction efficiency is high, the quality is guaranteed, the construction period is greatly shortened, the construction cost is effectively reduced, and the downstream urgent water demand is met; and meanwhile, no restriction of special weather iscaused, the risk of flood control is low, river rising does not need to be worried about, navigation is not affected, and the safety of the construction is greatly increased.

Description

technical field [0001] The invention relates to the technical field of immersed pipe engineering construction, in particular to a construction method for an immersed pipe with a reverse culvert across a river section. Background technique [0002] The immersed tube method is the abbreviation of the prefabricated pipe section immersed method, and it is a construction method for building tunnels under water. The construction sequence is to first make the tunnel pipe section (using steel plate and concrete or reinforced concrete) on the berth or in the dry dock, seal the two ends of the pipe section with a temporary sealing wall, and then slide into the water (or release water in the dock) to make it float in the water , and then dragged to the tunnel design location. After positioning, load the pipe section to make it sink into the pre-dug underwater trench. The pipe sections are lowered section by section, and the adjacent pipe sections are connected by hydraulic crimping. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D23/08E02D23/16
CPCE02D23/08E02D23/16
Inventor 詹玮璇詹浩明蔡积翔詹钦慧
Owner GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST
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