Replaceable enhancement type water joint for immersed tunnel

Abstract

The invention provides a replaceable enhancement type water joint for an immersed tunnel and belongs to the technical field of engineering tests and testing. One end of each water stop steel sheet is connected with a steel shell, and the other ends of the water stop steel sheets are embedded into concrete top or bottom plates. An A-typed end steel shell and a B-typed end steel shell are fixedly connected with the concrete plates respectively. High expansion rubber on the two ends is respectively fixed to the steel shells on the two ends. A meshing seam is reserved between the high expansion rubber on the two ends. The meshing seam between the high expansion rubber is of a zigzag shape, and the two pieces of high expansion rubber are meshed with each other. When the water stop effect of one high expansion rubber water stop reduces, the high expansion rubber water stop can be dismounted and replaced. According to the replaceable enhancement type water joint for the immersed tunnel, the problems that when water permeation and even water leakage occur on a GINA water stop and an OMEGA water stop at the positions of flexible joints of the immersed tunnel, it is difficult to block the leakage and the GINA water stop and the OMEGA water stop cannot be replaced are solved. The method is simple, convenient and fast, good in the operational performance, and is applicable to large scale popularization and application.

Description

technical field [0001] The invention belongs to the technical field of engineering test and testing, and relates to a replaceable reinforced waterproof joint for immersed tube tunnels. Background technique [0002] The pipe joint is an important part of the immersed tube tunnel, and it is also a weak part. Flexible joints generally use hydraulic pressure bonding to form an initial seal, that is, GINA rubber waterstops are used as the first waterproofing. Then install OMEGA rubber waterstops on each joint in the watertight immersed pipe section. Earthquake action or the aging of the waterstop itself may easily lead to a decrease in the waterstop effect at the joint, a stronger seepage effect or even water leakage. Due to the unique structural characteristics of the immersed tube tunnel, the GINA waterstop and OMEGA waterstop cannot be replaced in the event of strong seepage or water leakage, which reduces the safety and reliability of the immersed tube tunnel. Based on thi...

AI Technical Summary

Problems solved by technology

Earthquake action or the aging of the water-stop itself may easily lead to a decrease in the water-stop effect at the joint, a stronger seepage effect, or even water leakage.

Due to the unique structural characteristics of the immersed tube tunnel, the GINA waterstop and the OMEGA waterstop cannot be replaced in the case of strong seepage until water leakage occurs, which reduces the safety and reliability of the immersed tube tunnel

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