CN210243574U - Drainage box culvert structure reinforcing bar distribution detects structure based on supersound mapping method - Google Patents
Drainage box culvert structure reinforcing bar distribution detects structure based on supersound mapping method Download PDFInfo
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- CN210243574U CN210243574U CN201820179274.5U CN201820179274U CN210243574U CN 210243574 U CN210243574 U CN 210243574U CN 201820179274 U CN201820179274 U CN 201820179274U CN 210243574 U CN210243574 U CN 210243574U
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- 238000013507 mapping Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 title description 9
- 238000001514 detection method Methods 0.000 claims abstract description 84
- 239000000523 sample Substances 0.000 claims abstract description 26
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 3
- 230000002787 reinforcement Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 238000003384 imaging method Methods 0.000 abstract description 10
- 238000012545 processing Methods 0.000 abstract description 5
- 239000010865 sewage Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 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
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a drainage box culvert structure reinforcing steel bar distribution detection structure based on an ultrasonic mapping 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 detection once at intervals of a set distance by an ultrasonic mapping device; the detection method comprises the steps that an ultrasonic imaging device formed by combining an ultrasonic transmitting probe and an ultrasonic receiving probe is arranged on a first measuring point of a detection measuring line, and the ultrasonic imaging device is used for detecting a drainage box culvert at the measuring point; and sequentially completing detection at the positions of the measuring points along the detection measuring lines, processing the obtained ultrasonic reflection signals by data to obtain an ultrasonic mapping method profile, and determining the distribution condition of the steel bars in the drainage box culvert through the ultrasonic mapping method profile. The utility model has the advantages that the detection method is simple and convenient to operate, the detection result is accurate, the core is taken without opening the hole, and the steel bar distribution in the drainage box culvert structure can be rapidly and accurately detected by using a non-damaged method.
Description
Technical Field
The utility model belongs to the technical field of geotechnical engineering detects and tests, concretely relates to drainage box culvert structure reinforcing bar distribution detects structure based on supersound mapping 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 the bulk reason of seepage comes from box culvert overall structure and receives destruction, for example soaks in sewage for a long time, and box culvert inboard surface layer concrete receives sewage and erodees and suffer the corruption for the serious phenomenon of corroding often appears in box culvert inner structure reinforcing bar.
The overall structure of box culvert is being maintained to a certain extent to the inside reinforcing bar of box culvert, if inside reinforcing bar corrodes seriously, the overall structure of box culvert can receive the influence, has not only shortened the life of structural system, has increased the maintenance cost, also brings adverse effect for municipal sewage's daily processing, seriously endangers the order of city normal operation.
Disclosure of Invention
The utility model aims at providing a drainage box culvert structure distribution of reinforcing bar detects structure based on above-mentioned prior art's weak point, should detect structure and method and arrange the detection survey line of constituteing by a plurality of interval distribution's measurement station on drainage box culvert surface, detect each measurement station in proper order along detecting the survey line through supersound image device to obtain the supersound image method profile map that detects in the survey line coverage, with the reinforcing bar distribution condition in the definite drainage box culvert.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides a drainage box culvert structure reinforcing bar distribution detects structure based on supersound image method, its characterized in that detect the structure including arranging in at least one detection survey line on drainage box culvert surface, it is once formed by the detection of every interval setting distance of supersound image device to detect the survey line, supersound image device comprises ultrasonic emission probe and ultrasonic wave receiving probe with the fixed interval combination.
The detection measuring line can be one or two of a main reinforcement detection measuring line and a stirrup detection measuring line.
The main rib detection measuring line and the arrangement direction of the main ribs in the drainage box culvert form an included angle of 80-90 degrees; the stirrup detection measuring line and the arrangement direction of the stirrups in the drainage box culvert form an included angle of 80-90 degrees.
The detection measuring line is formed by arranging a plurality of measuring points distributed on the surface of the drainage box culvert at intervals, and the point distance between the measuring points is less than 0.1 m; the middle point of a connecting line between the ultrasonic wave transmitting probe and the ultrasonic wave receiving probe in the ultrasonic imaging device is positioned on the measuring point.
The detection measuring lines are arranged at one or more positions on the upper surface and two side surfaces of the drainage box culvert.
A detection method related to any drainage box culvert structural steel bar distribution detection structure based on an ultrasonic mapping method is characterized by comprising the following steps: arranging a plurality of measuring points at intervals along the surface of the drainage box culvert to form a detection measuring line; arranging an ultrasonic imaging device formed by combining an ultrasonic transmitting probe and an ultrasonic receiving probe on a first measuring point, and detecting the drainage box culvert at the measuring point by using the ultrasonic imaging device; and sequentially completing detection at the positions of the measuring points along the detection measuring lines, processing the obtained ultrasonic reflection signals to obtain an ultrasonic mapping sectional view, and determining the distribution condition of the steel bars in the drainage box culvert through the ultrasonic mapping sectional view.
At the position of the measuring point, the ultrasonic transmitting probe in the ultrasonic imaging device transmits an ultrasonic signal into the drainage box culvert, and the ultrasonic receiving probe receives an ultrasonic reflection signal reflected back from the drainage box culvert.
The ultrasonic mapping sectional view can be obtained by processing ultrasonic reflection signals at a single measuring point, or can be obtained by splicing ultrasonic reflection signals at each measuring point on the detection measuring line.
The method for judging the distribution of the steel bars in the drainage box culvert comprises the following steps: in the ultrasonic mapping profile, the position of the reinforcing steel bar in the drainage box culvert is represented as an ultrasonic reflection signal which generates difference at an interface with a surrounding concrete medium.
And arranging at least one main reinforcement detection measuring line and at least one stirrup detection measuring line on the surface of the drainage box culvert, and splicing ultrasonic reflection signals at the measuring points on the main reinforcement detection measuring line and the stirrup detection measuring line to obtain a three-dimensional detection image.
The utility model has the advantages that: the detection method is simple and convenient to operate, the detection result is accurate, the core is not required to be drilled, and the distribution of the steel bars in the drainage box culvert structure can be rapidly and accurately detected by a non-damaged method.
Drawings
FIG. 1 is a schematic view of the present invention, in which a main reinforcement detection line is arranged along the surface of a drainage box culvert by an ultrasonic mapping method for detection;
FIG. 2 is a schematic view of the present invention, in which a stirrup measurement line is arranged along the surface of a drainage box culvert by an ultrasonic mapping method for detection;
fig. 3 is the utility model discloses in utilize ultrasonic mapping method drainage box culvert to examine time measuring cross-sectional 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 drainage box culvert comprises a drainage box culvert 1, a main rib 2, a stirrup 3, a detection measuring line 4, an ultrasonic transmitting probe 5, an ultrasonic receiving probe 6 and an ultrasonic mapping device 7.
Example (b): as shown in fig. 1, 2, and 3, the present embodiment specifically relates to a drainage box culvert structural reinforcement distribution detection structure based on an ultrasonic mapping method, the detection structure includes at least one detection measuring line 4 arranged on the surface of the drainage box culvert 1, the detection measuring line 4 is specifically composed of a plurality of measuring points arranged at intervals, an ultrasonic mapping device 7 for detection is arranged on the detection measuring line 4, the detection measuring line 4 is formed by performing detection once at intervals of the ultrasonic mapping device 7, and the ultrasonic mapping device 7 is further connected with a host for data acquisition.
As shown in fig. 1, 2 and 3, the detection measuring lines 4 can be arranged on the upper surface and two side surfaces of the drainage box culvert 1 separately or simultaneously, and in addition, the detection measuring lines 4 can be divided into main reinforcement detection measuring lines 4 and stirrup detection measuring lines 4 when actually arranged; as shown in fig. 1, the main rib detection measuring line 4 forms an included angle of 80-90 degrees with the trend of the main rib 2 in the drainage box culvert 1 when being arranged; as shown in figure 2, the stirrup detection measuring line 4 is arranged to form an included angle of 80-90 degrees with the direction of the stirrups 3 in the drainage box culvert 1. It should be noted that the distance between the measuring points in the measuring line 4 is not less than 0.1 m.
As shown in fig. 1, 2 and 3, the ultrasonic imaging device 7 is formed by combining the ultrasonic transmitting probe 5 and the ultrasonic receiving probe 6 at a fixed distance, and when the ultrasonic imaging device is arranged specifically, the middle point of the connecting line between the ultrasonic transmitting probe 5 and the ultrasonic receiving probe 6 is located at the corresponding measuring point position.
As shown in fig. 1, 2, and 3, the method for detecting the distribution of the steel bars in the drainage box culvert structure based on the ultrasonic mapping method in this embodiment specifically includes the following steps:
(1) as shown in fig. 1 and 2, the general trends of main reinforcements 2 and stirrups 3 in the drainage box culvert 1 are obtained according to the trend of the drainage box culvert, a plurality of detection measuring lines 4 are arranged on the surface of structural concrete of the large drainage box culvert 1, the arranged detection measuring lines 4 comprise the main reinforcement detection measuring lines 4 and the stirrup detection measuring lines 4, and the main reinforcement detection measuring lines 4 form an included angle of 80-90 degrees with the trend of the main reinforcements 2 in the drainage box culvert 1 when being arranged as shown in fig. 1; as shown in fig. 2, the stirrup detection measuring line 4 forms an included angle of 80-90 degrees with the direction of the stirrups 3 in the drainage box culvert 1 when being arranged; wherein, each detection measuring line 4 is formed by arranging a plurality of measuring points which are distributed at equal intervals;
(2) removing floating dust and residues at each measuring point position on the surface of the drainage box culvert 1, ensuring the smoothness of a contact surface as much as possible, arranging an ultrasonic imaging device 7 at the first measuring point position of a certain detection measuring line 4, particularly arranging the middle point of a connecting line between an ultrasonic transmitting probe 5 and an ultrasonic receiving probe 6 at the first measuring point correspondingly, enabling the ultrasonic imaging device 7 to be well coupled with the surface of the drainage box culvert 1, and fixing the spacing distance between the ultrasonic transmitting probe 5 and the ultrasonic receiving probe 6; then, detection is carried out, a data acquisition mode adopts a leveling method, so that the ultrasonic transmitting probe 5 transmits an ultrasonic signal to the interior of the structure of the drainage box culvert 1, meanwhile, the ultrasonic receiving probe 6 receives and stores an ultrasonic reflection signal from the interface between the steel bar and the concrete in the structure of the drainage box culvert 1, and the ultrasonic reflection signal comprises an actually measured waveform, sound time and amplitude;
(3) after the detection of the position of the first measuring point on the measuring line 4 is finished, moving the ultrasonic mapping device 7 to the position of the next measuring point, and detecting the measuring point according to the detection method in the step (2), thereby obtaining an ultrasonic reflection signal at the position of the measuring point; repeating the steps, and sequentially detecting all the measuring points on the detecting measuring line 4; and the detection of all the detection measuring lines 4 on the surface of the drainage box culvert 1 is finished by the same method;
(4) the collected ultrasonic reflection signal data at different measuring point positions on each detection measuring line 4 are subjected to data processing and analysis to form a two-dimensional ultrasonic mapping sectional view, and certainly, under the condition that the main reinforcement detection measuring line 4 and the stirrup detection measuring line 4 exist, the main reinforcement detection measuring line and the stirrup detection measuring line can be spliced to form a three-dimensional detection image; then, according to a two-dimensional ultrasonic mapping method section diagram and a three-dimensional detection image, determining the exact distribution condition of the steel bars in the drainage box culvert 1, wherein the steel bars specifically refer to a main bar 2 and a stirrup 3, and the concrete judgment is explained as follows: according to the two-dimensional ultrasonic mapping sectional diagram and the three-dimensional detection image, the steel bars are reflected by strong reflection, diffraction and the like which are different from surrounding concrete media, the exact distribution positions of the steel bars in the drainage box culvert 1 can be judged according to the strong reflection, diffraction and the like, and therefore the distribution of the structural main bars 2 and the stirrups 3 in the large drainage box culvert 1 is determined.
Claims (1)
1. A drainage box culvert structure reinforcing steel bar distribution detection structure based on an ultrasonic mapping method is characterized in that the detection structure comprises at least one detection measuring line arranged on the surface of a drainage box culvert, the detection measuring line is formed by once detection of an ultrasonic mapping device at a set distance, and the ultrasonic mapping device is formed by combining an ultrasonic transmitting probe and an ultrasonic receiving probe at a fixed distance; the detection measuring line is formed by arranging a plurality of measuring points distributed on the surface of the drainage box culvert at intervals, and the point distance between the measuring points is less than 0.1 m; the middle point of a connecting line between the ultrasonic transmitting probe and the ultrasonic receiving probe in the ultrasonic mapping device is positioned on the measuring point; the detection measuring lines are arranged on one or more positions on the upper surface and two side surfaces of the drainage box culvert; the detection measuring line comprises a main reinforcement detection measuring line and a stirrup detection measuring line; the main rib detection measuring line and the arrangement direction of the main ribs in the drainage box culvert form an included angle of 80-90 degrees; the stirrup detection measuring line and the arrangement direction of the stirrups in the drainage box culvert form an included angle of 80-90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820179274.5U CN210243574U (en) | 2018-02-02 | 2018-02-02 | Drainage box culvert structure reinforcing bar distribution detects structure based on supersound mapping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820179274.5U CN210243574U (en) | 2018-02-02 | 2018-02-02 | Drainage box culvert structure reinforcing bar distribution detects structure based on supersound mapping method |
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| Publication Number | Publication Date |
|---|---|
| CN210243574U true CN210243574U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820179274.5U Active CN210243574U (en) | 2018-02-02 | 2018-02-02 | Drainage box culvert structure reinforcing bar distribution detects structure based on supersound mapping method |
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| Country | Link |
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| CN (1) | CN210243574U (en) |
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2018
- 2018-02-02 CN CN201820179274.5U patent/CN210243574U/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. |
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