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A correction method for tunnel construction arch formwork

A technology for tunnel construction and arch frame, which is applied to tunnels, tunnel linings, earth-moving drilling, etc., can solve the problems of difficult to guarantee the construction quality of buttress forming, time-consuming and laborious calibration of a single jacking cylinder, and difficult process control and control. Simple process and tooling, low cost of measures, and the effect of process control and control

Active Publication Date: 2017-11-21
CHINA METALLURGICAL CONSTR ENG GRP
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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

Method used

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  • A correction method for tunnel construction arch formwork
  • A correction method for tunnel construction arch formwork
  • A correction method for tunnel construction arch formwork

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] A kind of tunnel construction arch template correction method of the present invention comprises the following steps:

[0019] 1) Carry out excavation according to the tunnel construction technology, and prepare qualified arch formwork and arch trolley for tunnel construction, and assemble them completely;

[0020] 2) According to the tunnel construction process requirements, the assembled arch trolley is moved and fixed in the direction of the tunnel; The high-pressure oil pipes are respectively connected to each hydraulic jacking cylinder fixedly installed on the arch trolley, and the pump station provides hydraulic power to each hydraulic jacking cylinder through the high-pressure oil pipe; The sensors are respectively connected with the intelligent numerical control computer platform for signal transmission, such as the di...

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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, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10
CPCE21D11/102
Inventor 陈国民伍永泽唐和容
Owner CHINA METALLURGICAL CONSTR ENG GRP
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