End steel shell mounting and positioning device and operation method

Abstract

The invention relates to the manufacturing field of subsea tunnel immersed tubes, in particular to an immersed tube end steel shell mounting and positioning device and an operating method. The end steel shell mounting and positioning device comprises an end steel shell and an end formwork unit. The end steel shell comprises a bottom plate segment, a left wall segment, a right wall segment and a top plate segment which are each formed by splicing segmented steel shell parts. The end formwork unit comprises a formwork back rack, adjusting threaded rods, a vertical frame, a telescopic rod and a fixing base, wherein the adjusting threaded rods are connected with the vertical frame and the formwork back rack; the formwork back rack is closely connected with the end steel shell; the adjusting threaded rods are provided with nuts; the telescopic rod is connected with the vertical frame and the fixing base; the end steel shell is provided with reflective pasters. Firstly, the spliced end steel shell large-segments are sequentially and initially located at the end of a bundled overall reinforcement cage, and then joint soldering is conducted; secondly, the reinforcement cage and the end steel shell are pushed into a pouring region, the end formwork unit and the end steel shell are connected and then accurately positioned and fixed; finally, the end steel shell and immersed tube sections are formed through one-time pouring, and then real-time positioning is conducted. The device is high in mounting accuracy, small in steel consumption, simple in process, high in working efficiency and low in cost.

Description

technical field [0001] The invention relates to the manufacturing field of subsea tunnel immersed tubes, in particular to a steel shell installation and position adjustment device at the end of the immersed tube and an operation method. Background technique [0002] At present, with more and more immersed tube tunnel projects, the safety and water tightness of the tunnel are the key to the entire immersed tube tunnel. The end steel shell is the key component of the flexible joint of the pipe section, and it is set for the installation of GINA and OMEGA waterstops At both ends of the immersed tube joint, it is integrated with the concrete of the pipe joint. The end steel shell is an important permanent component of the pipe joint structure. The installation quality is directly related to the water sealing effect of the pipe joint, and the installation accuracy is extremely high. In order to minimize the installation error of the end steel shell, the traditional end steel shel...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an installation and adjustment device and operation method for the steel shell at the end of the immersed tube to solve the problems of low installation accuracy, large steel consumption, complicated process and low work efficiency in the installation of the existing end steel shell

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