CN215261608U - Nondestructive testing device for quality of cable cement protection cover plate - Google Patents
Nondestructive testing device for quality of cable cement protection cover plate Download PDFInfo
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- CN215261608U CN215261608U CN202121687747.0U CN202121687747U CN215261608U CN 215261608 U CN215261608 U CN 215261608U CN 202121687747 U CN202121687747 U CN 202121687747U CN 215261608 U CN215261608 U CN 215261608U
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- Prior art keywords
- apron
- track
- cover plate
- plate
- electromagnetic induction
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- 239000004568 cement Substances 0.000 title claims abstract description 12
- 238000009659 non-destructive testing Methods 0.000 title description 4
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 abstract description 15
- 239000010959 steel Substances 0.000 abstract description 15
- 239000011241 protective layer Substances 0.000 abstract description 12
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000003014 reinforcing effect Effects 0.000 abstract description 5
- 239000011210 fiber-reinforced concrete Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 6
- 239000011150 reinforced concrete Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model relates to a nondestructive test device of cable cement protection apron quality, including electromagnetic induction scanner, apron supporter, track board, the apron supporter is used for supporting the apron and makes it be in the horizontality, electromagnetic induction scanner slidable mounting is on a track board, in the use, the track board is located the top of apron and parallel with the apron. The utility model discloses a nondestructive test of prefabricated steel fibre reinforced concrete apron protective layer thickness, reinforcing bar position and reinforcing bar diameter. The method has important significance for improving the cover plate detection efficiency and the detection precision.
Description
Technical Field
The utility model belongs to concrete structure nondestructive test field relates to cable cement protection apron, especially a nondestructive test device of cable cement protection apron quality.
Background
The prefabricated reinforced concrete cover plate has the advantages of low cost, large mass, no recycling value and difficulty in losing, can prevent safety accidents caused by theft of the protective cover plate, and is commonly used for construction scenes such as transformer substation cable trench protective cover plates, underground cable trench protective cover plates and the like. However, in terms of construction conditions in China, the phenomena of few ribs, rib leakage, untight control of the thickness of a reinforcing steel bar protective layer and the like exist, and therefore the quality of the prefabricated reinforced concrete cover plate made of the steel fibers needs to be effectively guaranteed. If the quality construction control of the prefabricated reinforced fiber reinforced concrete cover plate does not meet the standard requirements of the standard design, the service life and the durability of the concrete structure are seriously influenced.
At present, most of the quality detection of the prefabricated reinforced concrete cover plate with the steel fiber is sampling damage detection in the existing method, and the whole batch of nondestructive detection of prefabricated parts is lacked.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide a nondestructive test device of cable cement protection apron quality, realized the nondestructive test of prefabricated steel fibre reinforced concrete apron protective layer thickness, reinforcing bar position and reinforcing bar diameter.
The utility model provides a technical scheme that technical problem adopted is:
the utility model provides a nondestructive test device of cable cement protection apron quality, includes electromagnetic induction scanner, apron supporter, track board, the apron supporter is used for supporting the apron and makes it be in the horizontality, electromagnetic induction scanner slidable mounting is on a track board, and in the use, the track board is located the top of apron and parallel with the apron.
And step parts capable of supporting two ends of the track plate are formed at two ends of the top surface of the cover plate supporting body.
And, the apron supporter is the cuboid, has upper and lower two-stage ladder recess at the top surface system of cuboid, places the apron in lower level recess, places the track board in upper recess, the track board is with the top surface interval certain distance of apron.
Furthermore, the size of the inferior groove is comparable to the size of the cover plate.
And the track plate is a long strip plate, the width of the track plate is smaller than that of the cover plate, and the track plate can slide in the upper-stage groove.
And the top surface of the track plate is provided with a track, and the electromagnetic induction scanner is provided with a track wheel. The utility model has the advantages that:
the utility model discloses be used for detecting the nondestructive test device of apron protective layer thickness, reinforcing bar position and diameter of steel reinforcement specially based on the development of electromagnetic induction principle, can be under the prerequisite that does not harm the apron, effectively, accurately carry out intensity and diameter of steel reinforcement, protective layer thickness's detection to it, to improving apron detection efficiency, improve and detect the precision and all have important meaning.
Drawings
FIG. 1 is a schematic view of a cable cement protective cover scanning device;
in the figure: the device comprises an electromagnetic induction scanner 1, a track plate 2, a cover plate 3 and a cover plate support 4.
FIG. 2 is a schematic top view of FIG. 1;
FIG. 3 is a flow chart of the operation of the detection device.
Detailed Description
The present invention will be described in further detail with reference to specific examples, which are provided for illustrative purposes only, and are not intended to be limiting, and the scope of the present invention should not be limited thereby.
The utility model provides a nondestructive test device of cable cement protection apron quality, includes electromagnetic induction scanner 1, apron supporter 4, track board 2, apron supporter 4 is used for supporting apron 3 and is in the horizontality, 1 slidable mounting of electromagnetic induction scanner is on a track board 2, and in the use, track board 2 is located the top of apron 3 and is parallel with apron 3.
The apron supporter 4 is the cuboid, has upper and lower two-stage ladder recess at the top surface system of cuboid, places apron 3 in lower recess, and the size of this subordinate's recess matches with apron 3 size, places track board 2 in the recess of upper level, track board 2 and the top surface interval certain distance of apron 3. The track plate 2 is a long strip plate, the width of the track plate is smaller than that of the cover plate 3, the track plate 2 can slide in the upper-stage groove, and after one position of the cover plate 3 is measured by scanning, the track plate 2 is moved to the next position, and then the other position of the cover plate 3 is scanned.
The top surface of the track plate 2 is provided with a track, and the electromagnetic induction scanner 1 is provided with a track wheel. The electromagnetic induction scanner 1 slides on the track plate 2 by means of a track wheel.
The using method of the device comprises the following steps:
firstly, placing a prefabricated reinforced concrete steel fiber cover plate test piece into a cable cement protective cover plate scanning device for scanning test to obtain a scanning signal oscillogram of a standard component.
And secondly, repeatedly scanning for multiple times to obtain a sufficient number of standard component scanning signal oscillograms and obtain a scanning signal envelope graph.
And thirdly, counting by using a mathematical statistical method, and calculating the distribution characteristics of the waveform signal according to the scanning signal envelope diagram.
Fourthly, determining the numerical relationship between the distribution characteristics of the waveform signals and the thickness of the protective layer, the position of the reinforcing steel bar and the diameter of the reinforcing steel bar, and determining the fluctuation range of the electromagnetic signal distribution characteristic values corresponding to different thicknesses of the protective layer, positions of the reinforcing steel bar and diameters of the reinforcing steel bar: the fluctuation range of the protective layer thickness corresponding to the electromagnetic signal characteristic value Smean is 6150-9000, the fluctuation error of the steel bar position corresponding to the electromagnetic signal characteristic value Lmax1 is 25, the fluctuation error of the Lmax2 is 25, the steel bar diameter corresponding to the electromagnetic signal characteristic value Smax1, and the fluctuation error of the Smax2 is 1240.
And (3) checking whether the diameter of the steel bar is qualified by using a peak value: and judging that the diameters of the steel bars are qualified if both Smax1 and Smax2 are within the range of Smax +/-1240, otherwise, the diameters of the steel bars are unqualified.
And (3) checking whether the position of the steel bar is qualified by using the step pitch: judging that the positions of the steel bars are qualified if the Lmax1 and the Lmax2 are respectively in the ranges of (L-Lcen)/2 +/-25 and (L + Lcen)/2 +/-25, otherwise, the positions of the steel bars are unqualified.
The mean value was used to check whether the protective layer thickness passed: and calculating the mean value of the step distance in the range of [ (L-Lcen)/2, (L + Lcen)/2] as Smean, judging that if the Smean is in the range of [6150,9000], the thickness of the protective layer is qualified, otherwise, the thickness of the protective layer is unqualified.
The nondestructive testing device for the quality of the cable cement protective cover plate obtains a scanning signal oscillogram by scanning and quantizing a prefabricated reinforced concrete cover plate test piece, and realizes nondestructive testing of the thickness of the protective layer of the prefabricated reinforced concrete cover plate, the position of a reinforcing steel bar and the diameter of the reinforcing steel bar by analyzing the distribution characteristics of the signal oscillogram.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the spirit of the present invention, and these modifications and improvements are all within the protection scope of the present invention.
Claims (6)
1. The utility model provides a nondestructive test device of cable cement protection apron quality which characterized in that: including electromagnetic induction scanner (1), apron supporter (4), track board (2), apron supporter (4) are used for supporting the apron and make it be in the horizontality, electromagnetic induction scanner (1) slidable mounting is on a track board (2), and in the use, track board (2) are located the top of apron and are parallel with the apron.
2. The apparatus of claim 1, wherein: step parts capable of supporting two ends of the track plate (2) are arranged at two ends of the top surface of the cover plate supporting body (4).
3. The apparatus of claim 2, wherein: the cover plate supporting body (4) is a cuboid, an upper step groove and a lower step groove are formed in the top surface of the cuboid, the cover plate (3) is placed in the lower groove, the track plate (2) is placed in the upper groove, and the track plate (2) and the top surface of the cover plate (3) are spaced at a certain distance.
4. The apparatus of claim 3, wherein: the size of the lower stage groove is equivalent to that of the cover plate (3).
5. The apparatus of claim 3, wherein: the track plate (2) is a long strip plate, the width of the track plate is smaller than that of the cover plate (3), and the track plate (2) can slide in the upper-stage groove.
6. The apparatus of claim 1, wherein: the top surface of the track plate (2) is provided with a track, and the electromagnetic induction scanner (1) is provided with a track wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121687747.0U CN215261608U (en) | 2021-07-23 | 2021-07-23 | Nondestructive testing device for quality of cable cement protection cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121687747.0U CN215261608U (en) | 2021-07-23 | 2021-07-23 | Nondestructive testing device for quality of cable cement protection cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215261608U true CN215261608U (en) | 2021-12-21 |
Family
ID=79493788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121687747.0U Active CN215261608U (en) | 2021-07-23 | 2021-07-23 | Nondestructive testing device for quality of cable cement protection cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215261608U (en) |
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2021
- 2021-07-23 CN CN202121687747.0U patent/CN215261608U/en active Active
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