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A method of repairing the upper cushion stone with tgm support grouting material

A technology of grouting material and cushion stone, which is applied in the field of rail transit, can solve the problem of inapplicable cushion stone, etc., and achieve the effect of overcoming the limited operation space.

Active Publication Date: 2017-06-06
BEIJING MUNICIPAL CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that the existing method of repairing the lower pad stone is not suitable for the repair of the upper pad stone, and to provide a method for repairing the upper pad stone with TGM support grouting material, which can be used for the upper pad stone with limited operating space Repair and ensure that the gas generated during the grouting process can be discharged smoothly

Method used

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  • A method of repairing the upper cushion stone with tgm support grouting material
  • A method of repairing the upper cushion stone with tgm support grouting material

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Effect test

Embodiment 1

[0039] The invention provides a method for repairing the upper cushion stone by using TGM support grouting material, and its implementation process is as follows figure 1 shown, including:

[0040] Step S101, process and install the upper pad stone template on site, the upper end of the pad stone template is attached to the lower surface of the main beam, the lower end is in a horizontal plane with the lower surface of the upper steel plate at the bottom of the upper pad stone, and the pad stone is made The inner face of the formwork is attached around the top stone to be restored.

[0041] On-site processing of the plinth formwork, the formwork includes a pair of long panels, a pair of short panels and a set of pull bolts and corresponding fasteners. The short panels are set between a pair of long panels and arranged symmetrically; a pair of long panels are provided with through holes, and the two ends of a set of pull bolts pass through the through holes respectively, and t...

Embodiment 2

[0056] In this embodiment, there is no step S105 in the first embodiment, that is to say, the stone mold on the upper pad is retained and removed, and the maintenance process of step S106 is directly carried out.

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Abstract

The invention relates to a method for repairing upper padstone through TGM bracket grouting materials. The method comprises the steps that an upper padstone formwork is machined and installed on a site, the upper end of the upper padstone formwork is attached to the lower surface of a main beam, the lower end of the upper padstone formwork and the lower surface of an upper steel board at the bottom of the upper padstone are located on the same horizontal face, and the inner face of the padstone formwork is attached to the periphery of the upper padstone to be repaired through split bolts; a grouting pipe is laid in the lower half portion of the lateral side of the padstone formwork and an exhaust pipe is laid in the upper half portion; the TGM grouting materials are blended, and the blended TGM grouting materials are grouted into the upper padstone to be repaired through the grouting pipe; the grouting materials are solidified until the solidification time reaches the set time threshold; water is sprayed to the surface layer, and a plastic film is wound for maintenance until the grouting materials are completely solidified. It is ensured that the inner side of the padstone formwork is attached to the periphery of the upper padstone to be repaired through the split bolts, and the problem that slurry cannot be controlled to not slip or splash without support at the bottom of the formwork is avoided; the exhaust pipe and the grouting pipe are arranged, so that it is ensured that gas generated in the grouting process is drained smoothly.

Description

technical field [0001] The invention relates to the field of rail transit, in particular to a method for repairing an upper pad by using TGM (high-strength repair mortar) support grouting material. Background technique [0002] The bridge support pad stone is an auxiliary part of the bridge's upper and lower structure connecting important component supports. The setting of the pad stone is mainly to ensure the convenience of the bridge support installation, adjustment and replacement. The part connecting the main girder and the support is called the top stone, and the part connecting the support and the cap beam or pier is called the bottom stone. [0003] In practical application, with the increase of the service life and the repeated action of the dynamic load of the train, different diseases such as cracking, damage, and voiding will appear in the bearing pad stone. These hazards are likely to cause safety hazards to the safe operation of rail transit. Therefore, adoptin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 王松马福利孟昭晖杨建辉王来顺许凯孙希波郝兰涛李景云孟兴业
Owner BEIJING MUNICIPAL CONSTR