Positioning method of channel side wall drainage pipe

Abstract

The invention provides a positioning method of a channel side wall drainage pipe. The method comprises the steps that an elliptical through hole is formed in a small side die of a secondary lining platform vehicle; positioning line drawing is conducted on a side wall, and a drainage pipe is arranged after the position of the drainage pipe is determined; a water passing pipe of the platform vehiclepasses through the elliptical through hole and is connected with the drainage pipe, and the drainage pipe is fixed to secondary lining reinforcing bars to make the outer end face of the drainage pipeto be flush with the contour of the side wall; when the secondary lining platform vehicle is in position, a positioning steel pipe is inserted in the drainage pipe before construction is conducted, and the gap between the positioning steel pipe and the drainage pipe is sealed with foam rubber; concrete is poured, and the positioning steel pipe is pulled out after secondary lining concrete finallysolidifies; demolding is conducted on the secondary lining concrete, and inspection acceptance check is conducted on the drainage pipe. By means of the method, the drainage pipe can be accurately positioned to ensure the using performance of the drainage pipe, a double-wall corrugated pipe is adopted as the drainage pipe, when the concrete is poured, the drainage pipe has certain telescopic and bending capabilities, the construction working condition is self-adapted, certain extent of deformation is allowed to be generated, the purpose of active protection is achieved, and the drainage pipe is not easily damaged.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a method for locating drainage pipes in side walls of tunnels. Background technique [0002] When positioning the drainage pipes on the side wall of the tunnel, the drainage pipes are generally fixed on the brackets, and the measurement and correction must be carried out every time the drainage pipes are installed, because there is a possibility of deflection and displacement at any time during the construction process, especially during the pouring process. When the concrete is vibrated, it is particularly easy to make the drainage pipe deviate, and even cause the drainage pipe to be damaged and blocked. The deviation, blockage or damage of the drainage pipe is very likely to cause the failure of normal use function. There is an urgent need to solve the problem of drainage pipe positioning. Contents of the invention [0003] In view of this, the presen...

AI Technical Summary

Problems solved by technology

[0002] When positioning the drainage pipes on the side wall of the tunnel, the drainage pipes are generally fixed on the brackets, and the measurement and correction must be carried out every time the drainage pipes are installed, because there is a possibility of deflection and displacement at any time during the construction process, especially during the pouring process. When the concrete is vibrated, it is particularly easy to cause the drain pipe to deviate, and even cause the drain pipe to be damaged and blocked. The deviation, blockage or damage of the drain pipe is very likely to cause the normal use function to fail

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