Mounting device for grouting pipe in grouting process with mold

By designing the installation device for positioning flange and fixing flange in the mold grouting process, the problem of conflict between grouting pipe and lining steel bars is solved by using the combination of arc grooves and studs/screw holes, and the problem of conflict between grouting pipe and lining steel bars is achieved. The smooth installation of the slurry pipe and the tight connection of the device solve the problems of air removal and installation of the lining vaults during tunnel arch wall lining construction.

CN222296247UActive Publication Date: 2025-01-03CHENGDU ANGU TONGDA TECH CO LTD
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Patent Information

Application Number
CN202421261743.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-04
Publication Date
2025-01-03
Estimated Expiration
2034-06-04

AI Technical Summary

Technical Problem

In the construction of tunnel arch wall lining, due to factors such as vibration of concrete fabric and solidification and drying, the lining arch is prone to de-emphasis, and the grouting pipe is often conflicted with the lining steel bars during the installation of the grouting pipe in the mold grouting process, resulting in installation difficulties.

Method used

A grouting tube installation device in the mold grouting process is designed, including a positioning flange and a fixed flange, an arc groove and a stud or screw hole are provided on the positioning flange, and a fixed flange is provided on the fixed flange. The arc-shaped groove and the fixing cylinder are installed by rotating and adjusting the position of the grouting tube in the positioning groove or aligning the fixing cylinder with another positioning groove to avoid the steel bars.

Benefits of technology

Effectively solve the problem of conflict between grouting pipe and lining steel bars, realize the smooth installation of grouting pipe, and ensure the tight fit of the device through the coordination of indicator lines and studs/screw holes, avoiding mortar seepage and interference. .

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    Figure CN222296247U_ABST
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Abstract

The utility model provides a mounting device for a grouting pipe in a formwork grouting process, and belongs to the technical field of tunnel lining construction. The positioning flange plate is used for being fixed to the center line of a lining trolley top mold template, the fixing flange plate is used for fixing a grouting pipe, and the positioning flange plate is provided with two positioning grooves, a plurality of studs or a plurality of screw holes; the fixed flange plate is provided with a fixed cylinder and a plurality of fixed grooves; the positioning grooves are arc-shaped grooves concentric with the positioning flange plate, and the groove width is matched with the pipe diameter of the grouting pipe; the fixing grooves are arc-shaped grooves concentric with the fixing flange plate, and the width of the grooves is matched with the width of the studs or the width of the screw holes. The studs or the screw holes are uniformly distributed on the outer side of the positioning groove; the inner diameter of the fixing cylinder is matched with the pipe diameter of the grouting pipe, and the fixing cylinder is used for allowing the grouting pipe to penetrate through. When the grouting pipe is installed, the grouting pipe can be prevented from being blocked by lining steel bars, and installation is completed.
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