Segmental precast and sinking technology for underwater construction

An underwater construction and segment technology, which is applied in water conservancy projects, underwater structures, artificial islands, etc., can solve the problems of difficult construction of underwater immersed pipes, and achieve the effect of solving the construction difficulty and reducing the construction difficulty.

Inactive Publication Date: 2020-06-05
BEIJING JIUZHOU ARTERY TUNNEL TECH CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to address the above defects, to provide a segmental prefabrication and sinking method for underwater construction, to solv

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  • Segmental precast and sinking technology for underwater construction
  • Segmental precast and sinking technology for underwater construction
  • Segmental precast and sinking technology for underwater construction

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Embodiment Construction

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] Considering the construction of the underwater immersed tube, there are a series of engineering problems such as difficult construction, high construction cost, long construction period, and hidden dangers of waterproof and sealing in the overall project construction process. At least to solve the problem of low construction efficiency of vacuum pipeline un...

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Abstract

The invention discloses a segmental precast and sinking method for underwater construction. The method comprises steps as follows: a step of segmental precast: precast of reinforcing steel bars, rolled steel and/or concrete is performed in a precast site, and precast segments (1) of the reinforcing steel bars, the rolled steel and/or the concrete are obtained; a step of pipe joint formation: two or more precast segments (1) are subjected to assembling butt joint and tensioning treatment on a semi-submerged ship (2), and single pipe joints are obtained; and a step of pipe joint sinking and buttjoint: the semi-submerged ship (2) is transported to the sinking position of water surface in a floating manner and then dives, multiple single pipe joints are sunken and subjected to underwater buttjoint, and an underwater structural system is formed. According to the scheme, the problem of large construction difficulty of underwater pipe sinking can be solved, and the effect of reducing the construction difficulty of underwater pipe sinking is realized.

Description

technical field [0001] The invention belongs to the technical field of underwater construction, and in particular relates to a segmental prefabrication and sinking technology for underwater construction, in particular to a segmental prefabrication and sinking construction technology for underwater bridges. Background technique [0002] With the development of the global economy and technology, various land expressways and transportation across rivers, lakes and straits are gradually increasing. In order to meet the needs of production and life, while speeding up the construction period, reducing the cost and the impact on the surrounding environment, and solving the problems of super high-speed shipping and transportation, vacuum pipeline technology emerged as the times require. The main construction techniques of vacuum pipelines include underwater bridge technology, underwater shield tunnel technology, land vacuum pipelines and land vacuum tunnels. [0003] Whether it is ...

Claims

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Application Information

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IPC IPC(8): B28B23/04E02D29/073
CPCB28B23/043E02D29/073
Inventor 杜润杰刘子忠
Owner BEIJING JIUZHOU ARTERY TUNNEL TECH CO LTD
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