Oblique tunnel portal form manufacturing process

A manufacturing process and oblique cutting technology, which is applied in the direction of wellbore lining, tunnel lining, underground chamber, etc., can solve problems such as error in the design requirements of finished tunnel door formwork, and achieve the effect of small structural deviation and cost saving.

Inactive Publication Date: 2021-01-26
LUOYANG ZHONGTIE STRONG MACHINERY
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  • Abstract
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AI Technical Summary

Problems solved by technology

The tunnel door lining formwork is composed of an inner mold, an outer mold, and an upper cover plate. At present, the inner mold, outer mold, and upper cover plate that constitute the portal formwork use different manufacturing methods in the production process, which leads to the final assembly There is a certain error between the finished portal formwork and the design requirements

Method used

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  • Oblique tunnel portal form manufacturing process
  • Oblique tunnel portal form manufacturing process
  • Oblique tunnel portal form manufacturing process

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Embodiment one, combined with the attached Figure 1~4 , a kind of bevel-cut type portal formwork manufacturing process, the portal formwork includes inner formwork, outer formwork and upper cover plate, the manufacturing process of portal formwork specifically comprises the following steps:

[0018] (1) Since the door formwork is left-right symmetrical, the inner mold and the outer mold are composed of several single panels, therefore, the single-sided single-panel CNC blanking, the error is guaranteed to be within ±1mm;

[0019] (2) The single panel changes non-linearly during the CNC blanking and forming process, and the single panel needs to be coiled to control the forming;

[0020] (3) The contours of the ground projection of the inner formwork and the outer formwork are elliptical. It is necessary to stake out and mark the ground in sections to obtain the upper and lower contour lines of the inner formwork and the outer formwork. There is a certain distance betw...

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Abstract

The invention relates to the technical field of tunnel portal form manufacturing, in particular to an oblique tunnel portal form manufacturing process. The oblique tunnel portal form manufacturing process comprises the following steps that tunnel portal forms are in bilateral symmetry, the single forms on the single side are different in shape, the single forms are subjected to numerical control discharging, and the error is guaranteed to be within + / -1 mm; nonlinear change is formed in a face plate forming process, and single face plates need to be controlled and formed by a rolled plate; andthe tunnel portal inner and outer forms are formed into oval shapes by ground forming. According to the oblique tunnel portal form manufacturing process, a worker can conveniently manufacture the oblique tunnel portal forms, the situation that the lining effect is different due to errors generated in the oblique tunnel portal form manufacturing process is avoided, the structural deviation of theoblique tunnel portal forms is small, it is guaranteed that the size of an outer pipe is smooth and attractive, the oblique tunnel portal forms can be repeatedly used, and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of making and installing tunnel door templates, in particular to a manufacturing process of obliquely cut door templates. Background technique [0002] When the train passes through the tunnel at a relatively fast speed, there will be obvious pressure fluctuations at the entrance of the tunnel and micro-pressure waves at the exit, which will affect the comfort of the passengers in the train and the environment around the tunnel. The structure of the tunnel door is designed according to aerodynamics, which plays a good role in buffering the aerodynamic effect brought by the high-speed railway tunnel. influences. The tunnel door lining formwork is composed of an inner mold, an outer mold, and an upper cover plate. At present, the inner mold, outer mold, and upper cover plate that constitute the portal formwork use different manufacturing methods in the production process, which leads to the final assembly Th...

Claims

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Application Information

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IPC IPC(8): B23P15/00E21D11/10
CPCB23P15/00E21D11/10
Inventor 沈帅杰朱永峰马凯
Owner LUOYANG ZHONGTIE STRONG MACHINERY
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