Bridge pre-stress duct grouting quality control method and device thereof

A quality control method and tunnel grouting technology, applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as difficulty in ensuring construction quality, hidden dangers in engineering, and incompact grouting, saving manpower, installation and It is easy to use and maintain, and the effect of reducing labor intensity

Inactive Publication Date: 2013-01-02
李跃军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The prior art bridge prestressed channel grouting construction relies on the on-site construction operators to observe with the naked eye, manually operate, operate the grouting pump grouting at the entrance of the grouting channel, and close the angle valve to screen the grout at the outlet of the grouting channel, purely relying on the construction operation specification, 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 will lead to hidden dangers in the project

Method used

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  • Bridge pre-stress duct grouting quality control method and device thereof
  • Bridge pre-stress duct grouting quality control method and device thereof
  • Bridge pre-stress duct grouting quality control method and device thereof

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Embodiment Construction

[0025] The present invention is further explained as follows with reference to accompanying drawing in conjunction with specific embodiment:

[0026] For the schematic diagram of bridge prestressed tunnel grouting construction, please refer to the attached figure 1 , a method for controlling the grouting quality of prestressed tunnels in bridges. The method is to install flow and pressure transmitters at both the slurry inlet A and the slurry outlet B of the prestressed tunnels, and determine the pressure holding time t of the screen grout by measuring k According to this, determine the grouting time T 0 , so as to ensure the quality of prestressed tunnel grouting.

[0027] For the time sequence diagram of bridge prestressed channel grouting and screen grouting construction status, please refer to the attached figure 2 , t in the figure p is the start time of grouting, at this time, start the grouting pump at the end A of the grouting end, t k It is the time to keep the p...

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Abstract

The invention discloses a bridge pre-stress duct grouting quality control method and a device thereof. According to the method, the error amount of flow of an outlet end and an inlet end is controlled, the t<k> of the measurement for keeping pressure to stage under the pressure maintaining moment is determined, and a notebook type intelligent pre-stress duct grouting controller conducts a grouting operation. The device comprises a grouting control platform and an on-site grouting measurement/control box, wherein the on-site grouting measurement/control box is used for collecting on-site grouting flow and pressure data and transmitting on-site grouting flow and pressure data to the grouting control platform, the grouting control platform is used for processing on-site grouting flow and pressure data and sending control commands to the on-site grouting measurement/control box in accordance with grouting technology requirements, then the pre-stress duct grouting quality control is achieved, and the on-site grouting measurement/control box receives commands and implements opening and closing actions to a grout pump and an electrically-operated valve. By the aid of the method and the device, the whole bridge pre-stress duct grouting construction can be monitored, the grouting quality is guaranteed, and the problem that the grouting quality cannot be guaranteed under the condition of manual grouting in the prior art is solved effectively. Simultaneously, the device is in a modularized integrated structure. The device is small in volume, convenient to install on site, good in environment adaptive capacity, wide in application and capable of saving labors and improving work efficiency.

Description

technical field [0001] The invention relates to bridge prestressed tunnel grouting construction, in particular to a bridge prestressed tunnel grouting quality control method and a device thereof. Background technique [0002] The prior art bridge prestressed channel grouting construction relies on the on-site construction operators to observe with the naked eye, manually operate, operate the grouting pump grouting at the entrance of the grouting channel, and close the angle valve to screen the grout at the outlet of the grouting channel, purely relying on the construction operation specification, 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 compact, pores, and bleeding, which will lead to hidden dangers in the project. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
Inventor 桂岚付学问谢钢王拥军曾宪营熊志华胡翌刚李跃军
Owner 李跃军
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