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Device and method for detecting slurry filling fullness in electromagnetic sleeve grouting construction stage

A sleeve grouting and construction stage technology, applied in the direction of measuring devices, material inspection products, analysis materials, etc., can solve problems such as inability to make up for grouting quality defects, and achieve the effect of ensuring quality controllability

Pending Publication Date: 2020-11-24
SHANGHAI CONSTRUCTION GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing detection methods for the fullness of grout filling are carried out after the sleeve grouting is completed and the grout has hardened, which cannot make up for the defects of grouting quality. There is a lack of equipment and equipment for quantitative evaluation of the actual grouting quality in the sleeve during the grouting construction stage. method problem

Method used

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  • Device and method for detecting slurry filling fullness in electromagnetic sleeve grouting construction stage
  • Device and method for detecting slurry filling fullness in electromagnetic sleeve grouting construction stage
  • Device and method for detecting slurry filling fullness in electromagnetic sleeve grouting construction stage

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Effect test

Embodiment 1

[0041] combine Figure 2 to Figure 5 Describe the electromagnetic sleeve grouting construction stage slurry filling fullness detection device of the present invention, it comprises:

[0042] The back pressure device 20 is arranged in the inner cavity of the sleeve 10 and coincides with the axis of the sleeve 10;

[0043] The data acquisition and analysis module 40 is connected with the back pressure device 20 for signal;

[0044] Wherein, the back pressure device 20 comprises a base 22, a back pressure piece 21 and a plurality of slide bars 24, the outer diameter of the base 22 and the back pressure piece 21 is adapted to the inner diameter of the sleeve 10, the base 22 and the back pressure piece 21 Up and down are arranged at intervals, and a plurality of slide bars 24 are evenly distributed between the base 22 and the counter pressure sheet 21 in the radial direction. The slide bar 24 is a sliding rheostat whose resistance is evenly distributed along its length. 22 is hin...

Embodiment 2

[0050] Different from Embodiment 1, the electromagnetic sleeve grouting construction stage slurry filling fullness detection device of the present invention also includes an electromagnetic flowmeter 30, and the electromagnetic flowmeter 30 is arranged on the grouting hole 11 connected to the sleeve 10. On the pipeline, and the electromagnetic flowmeter 30 is connected with the signal of the data acquisition and analysis module 40, which is used to monitor the injected slurry injection volume V in the sleeve 10 gin Send to the data collection and analysis module 40.

Embodiment 3

[0052] combine Figure 2 to Figure 5 The method for detecting the fullness of slurry filling in the construction stage of electromagnetic sleeve grouting of the present invention is described, and the specific steps are as follows:

[0053] S1: Pre-measure the actual inner cavity volume V after the sleeve 10 is inserted into the embedded steel bar 4 rc ;

[0054] S2: if figure 2 As shown, the upper and lower prefabricated components to be connected are assembled, respectively prefabricated component one 1 and prefabricated component two 2, and the back pressure device 20 is embedded in the inner cavity of the sleeve 10 of the prefabricated component two 2, and the prefabricated The pre-embedded steel bar 4 of component 1 is aligned with the installation position in the sleeve 10, and the electromagnetic flowmeter 30 is arranged on the grouting pipeline connected to the grout inlet 11 of the sleeve 10. The back pressure device 20 and the electromagnetic flowmeter 30 are resp...

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Abstract

The invention discloses a device and method for detecting slurry filling fullness in an electromagnetic sleeve grouting construction stage, and relates to the technical field of prefabricated buildingstructure construction quality detection. The method aims at solving the problems that an existing slurry filling fullness detection method is carried out after sleeve grouting is completed and slurry is hardened, and grouting quality defects cannot be overcome. The detection device comprises a back pressure device arranged in an inner cavity of the sleeve and a data acquisition and analysis module in signal connection with the back pressure device, a base of the back pressure device is movably connected with a back pressure piece through a plurality of sliding rods evenly distributed in theradial direction, the sliding rods are sliding rheostats with resistors evenly distributed in the length direction of the sliding rods, and each sliding rod is provided with a sliding spring to provide back pressure. The liquid level of slurry in the sleeve makes contact with and extrudes the back pressure piece to slide upwards along the sliding rods, the data collecting and analyzing module measures the resistance value of each sliding rod through the resistance measuring device at present, then the filling degree, the filling plumpness and the voidage in the sleeve are calculated, and thusquantitative evaluation of the actual grouting construction quality in the sleeve is completed in the construction stage.

Description

technical field [0001] The invention relates to the technical field of construction quality detection of prefabricated building structures, in particular to an electromagnetic sleeve grouting construction stage slurry filling fullness detection device and method. Background technique [0002] The prefabricated concrete structure is an important direction for the implementation of industrialization in my country's construction industry, and the reliable connection of the main tendons of prefabricated components is the key to ensuring the overall mechanical properties of the prefabricated concrete structure. [0003] like figure 1 As shown, at present, sleeve grouting is mainly used to connect prefabricated components. Under the condition that the sleeve type and grouting material are basically similar, the connection quality between prefabricated components 1 and 2 depends entirely on the sleeve 10 The construction quality of grouting, the fluidity of the slurry is low, the ...

Claims

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Application Information

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IPC IPC(8): G01N33/38
CPCG01N33/383
Inventor 周泉吉吴小建陈峰军王新新张阿晋
Owner SHANGHAI CONSTRUCTION GROUP
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