Reusable fabricated end seal method for immersed tube tunnel

An immersed tunnel and prefabricated technology, applied in the field of construction engineering, can solve problems such as increasing engineering cost and prolonging construction period, and achieve the effect of saving cost, improving construction efficiency and good economic benefits.

Active Publication Date: 2012-02-08
SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when these two temporary end-sealing methods are removed, the end-sealing door needs to be cut and damaged, which not only increases the project cost, but also prolongs the construction period.
At present, there is no end-sealing technology that can realize modular assembly of end-sealing doors and can be recycled.

Method used

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  • Reusable fabricated end seal method for immersed tube tunnel
  • Reusable fabricated end seal method for immersed tube tunnel
  • Reusable fabricated end seal method for immersed tube tunnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] see Figure 1-5 , in this embodiment, taking a reinforced concrete immersed tube tunnel as an example, the reusable assembled end sealing method for the immersed tube tunnel is described in detail, wherein the cross-sectional layout of the pipe section 1 involved is a porous layout, where The structure of each prefabricated module used in the end sealing method is as follows:

[0029] In this embodiment, like the common steel beam / concrete mixed structure end seal door, it is also necessary to set several vertically arranged supporting girders 2 as the frame structure of the end seal door. Wherein, several main beam corbel embedded parts 4 are pre-embedded on the inner wall near the end surface of the pipe section 1 . The main beam corbel embedded parts 4 are bolted to the main beam corbel 3 to serve as a corbel structure for fixedly supporting the main beam 2 . The inner surfaces of the two ends of the supporting girder 2 and the corbel 3 of the girder are separated ...

Embodiment 2

[0046] See attached Image 6 , The basic arrangement of the end-sealing structure described in this embodiment is roughly the same as that in Embodiment 1. The difference is that the supporting main beam 2 is not only arranged at the block joints of the encapsulating door panels 5, but also densely arranged in the middle of the encapsulating door panels 5, that is, in addition to having the supporting main beams 2 at the joints of the encapsulating door panels 5, and relative to the Encapsulating the middle part of the door panel 5, a vertical supporting main beam 2 is also arranged on the pipe section 1. Correspondingly, a spacer rubber strip 11 is added on the inner surface of the package door panel 5 . The spacer rubber strip 11 is arranged in the ring-shaped sealing rubber strip 10, and its two ends are connected with the sealing rubber strip 10 and separated. After the package door panel 5 is installed, the spacer rubber strip 11 is located between the package door pane...

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Abstract

The invention relates to the field of construction engineering, in particular to a reusable fabricated end seal method for an immersed tube tunnel. A plurality of girder bracket embedded parts and a plurality of edge seal component embedded parts are pre-embedded in the inner wall of a pipe. The method comprises the following steps of: correspondingly bolting girder brackets to the girder bracketembedded parts one by one; respectively bolting two ends of a support girder to the girder brackets; hermetically welding an edge seal steel plate on the edge seal component embedded parts; plug-welding the gap between the support girder and the edge seal steel plate; and at least arranging one closed annular seal rubber strip at one side surface of a package door panel and then installing the closed door panel on the support girder via bolts so as to ensure that the seal rubber strip is located and compressed between the package door panel and the support girder or the edge seal steel plate and each opening formed between a vertical mounting surface and an edge seal surface is at least surrounded by the closed annular seal rubber strip. The reusable fabricated end seal method for the immersed tube tunnel has the advantage of greatly improving the construction efficiency.

Description

technical field [0001] The invention relates to technical means for tunnel construction in the field of construction engineering, in particular to a reusable assembled end sealing method for immersed tube tunnels. Background technique [0002] There are many construction methods and corresponding structural forms for underwater tunnels. In recent decades, there are mainly tunnels built by immersed tube method, shield tunneling method and mine method. Among them, immersed tube method is the abbreviation of prefabricated pipe section submerged method. It is a construction method for building tunnels under water. As a reliable construction method for tunnels crossing rivers and seas, the immersed tube method is attracting more and more attention. The construction sequence of the immersed pipe method is to first make the tunnel pipe section (use side-sealing steel plate and concrete or reinforced concrete), seal the two ends of the pipe section with temporary sealing walls, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/073
Inventor 陈鸿陈正杰陈华宋振华奚程磊
Owner SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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