A correction method for tunnel construction arch formwork

Abstract

The invention discloses a tunnel construction arch center formwork correcting method. The method comprises the steps that an arch center is moved and positioned in a tunnel; hydraulic electromagnetic combination distribution valves of a pump station provided with an intelligent numerical control computer platform on an arch center bogie are connected with hydraulic jacking oil cylinders respectively; a sensor on each hydraulic jacking oil cylinder is connected with the intelligent numerical control computer platform; a preset extending value and thrust data of each hydraulic jacking oil cylinder are determined and input, the hydraulic pump station is started, and a formwork on the tunnel construction arch center is corrected; after the arch center bogie moves forwards to a next station, the formwork on the tunnel construction arch center is corrected this time according to the data, memorized and stored in a computer, of the previous station. During arch center formwork correction and fixing, process control and master can be achieved for error gaps produced during arch center formwork installation, gap errors of a concrete arch wall which is cast again and comprehensive errors produced during arch center formwork installation, and the accurate control and correction effect on the arch center formwork on the bogie is achieved.

Description

technical field [0001] The invention relates to a method for correcting a tunnel construction arch formwork, in particular to a method for correcting a tunnel construction arch formwork. Background technique [0002] The correction of arch formwork in traditional tunnel construction and the displacement control during fixing are usually to correct the individual jacking cylinders of arch formwork one by one, which is a technical difficulty in tunnel construction. For the error gap generated during the installation of arch formwork, it has nothing to do with the arch formwork. It is related to the jacking force when the arch formwork is installed; and the joint error of the re-cast concrete arch wall is related to the last formwork correction data of the poured concrete arch wall; the comprehensive error generated during the arch formwork installation, in the arch When correcting and fixing the frame formwork, it is not easy to realize process control and control. Moreover, ...

AI Technical Summary

Problems solved by technology

[0002] The correction of arch formwork in traditional tunnel construction and the displacement control during fixing are usually to correct the individual jacking cylinders of arch formwork one by one, which is a technical difficulty in tunnel construction. For the error gap generated during the installation of arch formwork, it has nothing to do with the arch formwork. It is related to the jacking force when the arch formwork is installed; and the joint error of the re-cast concrete arch wall is related to the last formwork correction data of the poured concrete arch wall; the comprehensive error generated during the arch formwork installation, in the arch When correcting and fixing the frame template, it is not easy to realize process control and control

Moreover, it is time-consuming and labor-intensive to calibrate each jacking cylinder one by one, and the work efficiency is low, which ultimately makes it difficult to guarantee the construction quality of the buttress forming

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