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

A technology of sleeve grouting and construction stage, which is applied in measurement devices, material inspection products, analysis materials, etc., can solve problems such as irreparable grouting quality defects, achieve the effect of easy mass production and promotion, and ensure quality controllability

Active Publication Date: 2020-12-01
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 mechanical sleeve grouting construction stage
  • Device and method for detecting slurry filling fullness in mechanical sleeve grouting construction stage
  • Device and method for detecting slurry filling fullness in mechanical sleeve grouting construction stage

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Effect test

Embodiment 1

[0042] combine Figure 2 to Figure 5 The mechanical sleeve grouting construction stage slurry filling fullness detection device of the present invention includes:

[0043] The back pressure device 20 is arranged in the inner cavity of the sleeve 10 and coincides with the axis of the sleeve 10;

[0044] The data acquisition and analysis module 40 is connected with the back pressure device 20 for signal;

[0045] Wherein, the counter pressure device 20 comprises a pressure measuring plate 22, a counter pressure plate 21, a plurality of suspension rods 24, a plurality of sliding springs 25 and a plurality of pressure sensors 27, and the outer diameter of the pressure measuring plate 22 and the counter pressure plate 21 is the same as that of the sleeve 10. The inner diameter is compatible, the pressure measuring plate 22 and the counter pressure plate 21 are arranged at intervals above and below, a plurality of suspension rods 24 are evenly distributed between the pressure measu...

Embodiment 2

[0051] Different from Embodiment 1, the mechanical sleeve grouting construction stage slurry filling fullness detection device of the present invention also includes a pouring cylinder 30, which is connected to the grouting hole 11 of the sleeve 10, and the outer wall of the pouring cylinder 30 With a scale, it is convenient for construction personnel to intuitively and quickly calculate the volume of grout.

Embodiment 3

[0053] combine Figure 2 to Figure 5 The method for detecting the fullness of slurry filling in the mechanical sleeve grouting construction stage of the present invention is described, and the specific steps are as follows:

[0054] S1: Pre-measure the actual inner cavity volume V after the sleeve 10 is inserted into the embedded steel bar 4 rc , open the piston 31 of the perfusion cylinder 30, inject an appropriate amount of slurry into the inner cavity of the perfusion cylinder 30, ensure the 100% compactness of the slurry in the perfusion cylinder 30 by manual vibration, etc., close the piston 31 of the perfusion cylinder 30, and eliminate the perfusion The gas in the cylinder 30 is read through the scale on the side of the cylinder 30 to read the volume V of the slurry in the cylinder at this time g0 , and ensure the slurry volume V in the cylinder g0 Slightly higher than the actual inner cavity volume V after the sleeve 10 is inserted into the embedded steel bar 4 rc ;...

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Abstract

The invention discloses a mechanical sleeve grouting construction stage slurry filling fullness detection device and method, and relates to the technical field of prefabricated building structure 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 a sleeve and a data acquisition and analysis module in signal connection with the back pressure device, and a pressure measuring plate and a back pressure piece of the back pressure device are movably connected through a plurality of suspension rods evenly distributed in the radial direction. When the slurry liquid level in the sleeve is in contact with and extrudes the back pressure sheet, the data acquisition module acquires the internal force of the sliding spring through a pressure sensor arranged at the top of the pressure measuring plate; and the filling degree, the filling plumpness and the voidage in the sleeve are calculated such that the quantitative evaluation of the actual grouting construction quality in the sleeve is completed in the construction stage, components are separated, the sleeve is cleaned and re-constructed before the slurry isnot completely condensed, and the controllability of the grouting construction quality is ensured.

Description

technical field [0001] The invention relates to the technical field of construction quality detection of prefabricated building structures, in particular to a device and method for detecting the fullness of slurry filling in the mechanical sleeve grouting construction stage. 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] Such as 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 slur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/38
CPCG01N33/383Y02E10/20
Inventor 周泉吉吴小建陈峰军程子聪沈雯
Owner SHANGHAI CONSTRUCTION GROUP
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