Grouting quality control method and grouting quality control device for bridge prestressed pipeline based on density parameters

Abstract

The invention discloses a grouting quality control method and a grouting quality control device for a bridge prestressed pipeline based on density parameters. According to the method, a closed grout pressure maintaining time tk is judged by detecting the water cement ratio density; and the grouting construction operation is carried out by using an intelligent grouting controller of the bridge prestressed pipeline according to the closed grout pressure maintaining time tk. The grouting quality control device comprises a grouting control console and a field grouting measurement and control box; the field grouting measurement and control box is used for acquiring field grouting flow, pressure and density data and transmitting the data to the grouting control console; the grouting control console is used for processing the data, transmitting a control command to the field grouting measurement and control box according to the process requirement of the grouting water cement ratio density and realizing the quality control over the grouting of the prestressed pipeline; and the field grouting measurement and control box is used for receiving the command to execute the opening and closing actions for a grouting pump and an electrically-operated valve. According to the grouting quality control method and the grouting quality control device disclosed by the invention, the whole-process monitoring on grouting construction of the bridge prestressed pipeline can be carried out; the guarantee for the grouting quality is provided; the difficult problem that the grouting quality cannot be ensured under the condition of artificial grouting in the prior art is effectively solved; and meanwhile, the grouting quality control device disclosed by the invention has the advantages of modular integrated structure, small size, simpleness and convenience for field mounting, strong adaptive capacity to environment, labor force saving, improved work efficiency and wide application range.

Description

technical field [0001] The invention relates to bridge prestressed pipeline grouting construction, in particular to a method and device for controlling the quality of bridge prestressed pipeline grouting based on density parameters. Background technique [0002] The grouting construction of bridge prestressed pipelines in the prior art relies on on-site construction operators to observe with naked eyes, operate manually, operate the grouting pump at the inlet end of the grouting pipeline, and close the angle valve to screen the grout at the outlet end of the grouting pipeline. Construction operation standards, sense of responsibility and professional ethics are used to control the construction quality, so it is difficult to guarantee the construction quality, and it is easy to have incomplete grouting, pores and bleeding, which lead to potential safety hazards in the project. With the rapid development of electronic science and computer technology, in view of the above probl...

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Problems solved by technology

[0002] The grouting construction of bridge prestressed pipelines in the prior art relies on on-site construction operators to observe with naked eyes, operate manually, operate the grouting pump at the inlet end of the grouting pipeline, and close the angle valve to screen the grout at the outlet end of the grouting pipeline. Construction operation standards, responsibility and professional ethics are used to control the construction quality, so it is difficult to guarantee the construction quality, and it is easy to appear that the grouting is not compacted, pores and bleeding occur, resulting in potential safety hazards in the project

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