CN211148532U - Drainage box culvert inboard corrosion detection structure based on three-dimensional ultrasonic imaging method - Google Patents
Drainage box culvert inboard corrosion detection structure based on three-dimensional ultrasonic imaging method Download PDFInfo
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- CN211148532U CN211148532U CN201820179308.0U CN201820179308U CN211148532U CN 211148532 U CN211148532 U CN 211148532U CN 201820179308 U CN201820179308 U CN 201820179308U CN 211148532 U CN211148532 U CN 211148532U
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- 238000001514 detection method Methods 0.000 title claims abstract description 78
- 238000003384 imaging method Methods 0.000 title claims abstract description 23
- 230000007797 corrosion Effects 0.000 title claims abstract description 19
- 238000005260 corrosion Methods 0.000 title claims abstract description 19
- 239000000523 sample Substances 0.000 claims description 17
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 3
- 239000011435 rock Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 239000010865 sewage Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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Abstract
The utility model discloses a drainage box culvert inner side corrosion detection structure based on a three-dimensional ultrasonic imaging method, which comprises at least one detection measuring line arranged on the surface of the drainage box culvert, wherein the detection measuring line is formed by carrying out one-time detection at intervals of a set distance by a three-dimensional ultrasonic imager; the detection method comprises the steps of sequentially detecting each detection measuring line by using a three-dimensional ultrasonic imager to obtain an ultrasonic reflection signal, carrying out data processing to obtain a three-dimensional ultrasonic imaging method result diagram so as to obtain the current thickness of the corresponding concrete structure layer on the drainage box culvert, and comparing the current thickness with the design thickness of the concrete structure layer so as to determine the corrosion condition on the inner surface of the corresponding concrete structure layer on the drainage box culvert. The utility model has the advantages that: the detection method is simple and convenient to operate, a hole is not required to be opened to take a rock core, the damage is not required, the detection of the corrosion degree of the inner side of the large-scale drainage box culvert structure can be rapidly realized, the detection data is finally displayed visually by an image, and the detection result is accurate.
Description
Technical Field
The utility model belongs to the technical field of geotechnical engineering detects and tests, concretely relates to inboard corrosion detection structure of drainage box culvert based on three-dimensional ultrasonic imaging method.
Background
The large-scale drainage box culvert is an important basic measure of a municipal drainage system and plays an important role in ensuring the collection, transportation and treatment of municipal sewage and maintaining the daily operation of cities. Along with the rapid development of urban construction, the traffic is increasingly busy, the aggravation of road load, the road widening reconstruction and other peripheral engineering activities are more and more affected, and therefore certain potential safety hazards exist in the large drainage box culvert which is generally maintained for a long time at the present stage. Wherein the seepage phenomenon of large-scale drainage box culvert takes place occasionally, discovers through the excavation, and most reasons of seepage come from box culvert overall structure and receive destruction, for example soak in sewage for a long time, and box culvert inboard surface layer concrete receives sewage and erodees the phenomenon that the corruption is serious often appears.
If the inboard corruption of box culvert structure is serious, can lead to the box culvert structure damage, the bearing capacity is not enough, and the seepage appears in the part, brings adverse effect for the daily processing of urban sewage, seriously endangers the order of city normal operation.
Disclosure of Invention
The utility model aims at according to above-mentioned prior art's weak point, the utility model provides a drainage box culvert inboard corrosion detection structure based on three-dimensional ultrasonic imaging method is provided, should detect structure and method and arrange a plurality of detection survey lines on drainage box culvert surface, detect each detection survey line in proper order through three-dimensional ultrasonic imager and obtain ultrasonic reflection signal, and carry out data processing and obtain three-dimensional ultrasonic imaging method achievement drawing in order to learn the current thickness of corresponding concrete structure layer on the drainage box culvert, design thickness through with concrete structure layer carries out the comparison, in order to confirm the drainage box culvert on the corrosion condition on the corresponding concrete structure layer internal surface.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
a drainage box culvert inner side corrosion detection structure based on a three-dimensional ultrasonic imaging method is characterized in that the detection structure comprises at least one detection measuring line arranged on the surface of a drainage box culvert, and the detection measuring line is formed by once detection of a three-dimensional ultrasonic imager at intervals of a set distance; the detection measuring line is arranged at one or more positions on the upper surface and two side surfaces of the drainage box culvert, and at least two rows of ultrasonic probes are arranged on the three-dimensional ultrasonic imager.
The ultrasonic probe is an ultrasonic transceiving probe.
The detection measuring lines are arranged in parallel, and the distance between every two adjacent detection measuring lines is 5-20 cm.
The detection measuring line forms an included angle of 80-90 degrees with the main reinforcement or the stirrup in the drainage box culvert when being arranged.
The detection measuring line forms an included angle of 0-180 degrees with a main reinforcement or a stirrup in the drainage box culvert when being arranged.
A detection method related to any drainage box culvert inner side corrosion detection structure based on a three-dimensional ultrasonic imaging method is characterized by comprising the following steps: arranging at least one detection measuring line on the surface of the drainage box culvert; and sequentially detecting each detection measuring line by using a three-dimensional ultrasonic imager to obtain an ultrasonic reflection signal, carrying out data processing on the ultrasonic reflection signal to obtain a three-dimensional ultrasonic imaging method result diagram, obtaining the current thickness of the corresponding concrete structure layer on the drainage box culvert through the three-dimensional ultrasonic imaging method result diagram, and comparing the current thickness with the design thickness of the concrete structure layer to determine the corrosion condition on the inner surface of the corresponding concrete structure layer on the drainage box culvert.
The method for detecting the detection measuring line by the three-dimensional ultrasonic imager comprises the following steps: arranging the three-dimensional ultrasonic imager at the position of a first measuring point on the detection measuring line, wherein a row of ultrasonic probes in the three-dimensional ultrasonic imager transmits ultrasonic signals into the drainage box culvert, when the ultrasonic signals reach the interface between the inner surface of the concrete structure layer of the drainage box culvert and sewage or air inside the drainage box culvert, ultrasonic reflection signals are generated, and the ultrasonic reflection signals are received by the ultrasonic probes of the other rows on the single side of the row of ultrasonic probes in the three-dimensional ultrasonic imager to obtain the ultrasonic reflection signals; and after the detection of the first measuring point is finished, moving the three-dimensional ultrasonic imager along the detection measuring line, and carrying out detection once at intervals of a set distance.
And the three-dimensional ultrasonic imager carries out detection at intervals of 10-30cm in the process of moving along the detection measuring line.
The utility model has the advantages that: the detection method is simple and convenient to operate, the detection of the corrosion degree of the inner side of the large-scale drainage box culvert structure can be rapidly realized by detecting the measuring line by using a three-dimensional ultrasonic imaging method, the detection data is finally visually displayed by using an image, the detection result is accurate, a hole is not required to be opened to take a rock core, and the corrosion degree of the inner side of the drainage box culvert structure can be rapidly and accurately detected by using a non-damaged method.
Drawings
FIG. 1 is a schematic view of the drainage box culvert according to the present invention, which is arranged along the surface of the drainage box culvert by using a three-dimensional ultrasonic imaging method for detection;
FIG. 2 is a schematic diagram of the utility model, which uses a three-dimensional ultrasonic imaging method to arrange an oblique detection line along the surface of a drainage box culvert for detection;
fig. 3 is the utility model discloses well drainage box culvert utilizes three-dimensional ultrasonic imaging method to examine time measuring section view.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example with reference to the accompanying drawings, for the understanding of those skilled in the art:
referring to fig. 1-3, the symbols in the figures are: the device comprises a detection box culvert 1, a main rib 2, a stirrup 3, a detection measuring line 4, an ultrasonic probe 5 and a three-dimensional ultrasonic imager 6.
Example (b): as shown in fig. 1, 2 and 3, the embodiment specifically relates to a drainage box culvert inner side corrosion detection structure based on a three-dimensional ultrasonic imaging method, the detection structure comprises a plurality of detection measuring lines 4 arranged on the surface of the drainage box culvert 1, the detection measuring lines 4 are formed by once detection of a three-dimensional ultrasonic imager 6 at intervals of a set distance, and the three-dimensional ultrasonic imager 6 is internally connected with a host for data processing of collected ultrasonic reflection signals.
As shown in fig. 1, 2, and 3, the detection measuring lines 4 may be disposed on the upper surface and the two side surfaces of the drainage box culvert 1 individually or simultaneously, each detection measuring line 4 in this embodiment is specifically disposed on the upper surface of the drainage box culvert 1, the detection measuring lines 4 are parallel to each other, and the distance between the adjacent detection measuring lines 4 is 0.1 m. It should be noted that in the present embodiment, there are two ways for the detection line 4 to be arranged at an angle, one of the ways is to make an included angle between the detection line 4 and the steel bar in the drainage box culvert 1 be between 80 ° and 90 ° or between 0 ° and 10 °, as shown in fig. 1, where the steel bar refers to the main bar 2 or the stirrup 3; the other arrangement mode is that the included angle between the detection measuring line 4 and the steel bar in the drainage box culvert 1 is 0-180 degrees, as shown in figure 2, the steel bar is a main bar 2 or a stirrup 3; both types of arrangement of the detection lines 4 can be used, but the arrangement of the first type of detection lines 4 is more effective.
As shown in fig. 1, 2 and 3, 48 ultrasonic probes 5 are arranged on the three-dimensional ultrasonic imager 6, and each 4 ultrasonic probes 5 form a row, which is 12 rows in total; the ultrasonic probe 5 in the present embodiment is an ultrasonic transmitting/receiving probe that can transmit and receive ultrasonic waves, and has a frequency of 25kHz to 85 kHz.
As shown in fig. 1, 2, and 3, the method for detecting corrosion detection structure on inner side of drainage box culvert based on three-dimensional ultrasonic imaging method in this embodiment specifically includes the following steps:
(1) as shown in fig. 1 and 2, a plurality of detection measuring lines 4 are arranged on the outer surface of the concrete structure layer at the top of the large-scale drainage box culvert 1; as shown in fig. 1, in the embodiment, an included angle between the detection line 4 and the main reinforcement 2 or the stirrup 3 in the drainage box culvert 1 is 80-90 degrees when the detection line is arranged;
(2) removing floating dust and residues at the positions of the measuring points on the surface of the drainage box culvert 1 to ensure the smoothness of the contact surface as much as possible; arranging a three-dimensional ultrasonic imager 6 at the position of a first measuring point of a certain detection measuring line 4 and detecting, wherein the specific process comprises the following steps: a row of ultrasonic probes 5 in the three-dimensional ultrasonic imager 6 transmits ultrasonic signals to the interior of the concrete structure in the drainage box culvert 1, when the ultrasonic signals reach the interface between the inner surface of the concrete structure layer at the top of the drainage box culvert 1 and sewage or air in the drainage box culvert 1, ultrasonic reflection signals are generated, and the ultrasonic reflection signals are received and stored by the ultrasonic probes 5 in the remaining rows on the right side of the row of ultrasonic probes 5 in the three-dimensional ultrasonic imager 6;
then, moving the three-dimensional ultrasonic imager 6 along the detection measuring line 4 and carrying out detection once at intervals of 10-30 cm;
(3) according to the step (2), the detection on all the detection measuring lines 4 is sequentially finished by utilizing the three-dimensional ultrasonic imager 6, ultrasonic reflection signals on all the detection measuring lines 4 are obtained, and a three-dimensional ultrasonic imaging method result diagram including section data, plane data or three-dimensional data can be obtained after data processing of the host; by analyzing the three-dimensional ultrasonic imaging method result diagram (the inner surface of the top concrete structure layer of the drainage box culvert 1 in the image shows a strong reflection characteristic), the current thickness of the top concrete structure layer of the drainage box culvert 1 is obtained, then the detected current thickness is compared with the design thickness of the completion time of the top concrete structure layer of the drainage box culvert 1, and the larger the difference between the detected current thickness and the design thickness is, the more serious the corrosion degree is.
Claims (3)
1. A drainage box culvert inner side corrosion detection structure based on a three-dimensional ultrasonic imaging method is characterized in that the detection structure comprises at least one detection measuring line arranged on the surface of a drainage box culvert, and the measuring line is formed by once detection of a three-dimensional ultrasonic imager at certain intervals; the detection measuring line is arranged at one or more positions on the upper surface and two side surfaces of the drainage box culvert, and the three-dimensional ultrasonic imaging detector is provided with at least two rows of ultrasonic probes; the detection measuring line forms an included angle of 80-90 degrees or an included angle of 0-180 degrees with the main reinforcement or the stirrup in the drainage box culvert when being arranged.
2. The structure for detecting corrosion on the inner side of a drainage box culvert based on the three-dimensional ultrasonic imaging method as claimed in claim 1, wherein the ultrasonic probe is an ultrasonic transceiving probe.
3. The structure for detecting corrosion on the inner side of a drainage box culvert based on the three-dimensional ultrasonic imaging method as claimed in claim 1, wherein the detection measuring lines are arranged in parallel, and the distance between the adjacent detection measuring lines is 5-20 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820179308.0U CN211148532U (en) | 2018-02-02 | 2018-02-02 | Drainage box culvert inboard corrosion detection structure based on three-dimensional ultrasonic imaging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820179308.0U CN211148532U (en) | 2018-02-02 | 2018-02-02 | Drainage box culvert inboard corrosion detection structure based on three-dimensional ultrasonic imaging method |
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| Publication Number | Publication Date |
|---|---|
| CN211148532U true CN211148532U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820179308.0U Active CN211148532U (en) | 2018-02-02 | 2018-02-02 | Drainage box culvert inboard corrosion detection structure based on three-dimensional ultrasonic imaging method |
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| Country | Link |
|---|---|
| CN (1) | CN211148532U (en) |
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2018
- 2018-02-02 CN CN201820179308.0U patent/CN211148532U/en active Active
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Address after: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Address before: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |