CN109581364A - The identification of bridge brow plate emptying quantification and automatic identification method based on Ground Penetrating Radar - Google Patents
The identification of bridge brow plate emptying quantification and automatic identification method based on Ground Penetrating Radar Download PDFInfo
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- CN109581364A CN109581364A CN201811534532.8A CN201811534532A CN109581364A CN 109581364 A CN109581364 A CN 109581364A CN 201811534532 A CN201811534532 A CN 201811534532A CN 109581364 A CN109581364 A CN 109581364A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/885—Radar or analogous systems specially adapted for specific applications for ground probing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The bridge brow plate emptying quantification based on Ground Penetrating Radar that the present invention provides a kind of identifies and automatic identification method, including step S1: carrying out detection to lap slab of bridge using Ground Penetrating Radar and obtains radar waveform image；Step S2: radar waveform image is converted into gray level image；Step S3: analyzing the amplitude of gray level image, judges bridge brow plate emptying depth according to amplitude size；Step S4: the color shown according to the limit value setting image of amplitude obtains radar color image.Compared with prior art, the present invention carries out detection to lap slab of bridge by Ground Penetrating Radar and obtains radar waveform image, it avoids boring and coring or digs pit, realize quick, lossless, the continuous detection to bridge brow plate emptying, quantitative evaluation comes to nothing severity, evaluates representative strong, and passes through different color identifier gray level images, can intuitive eye-catching the observing region not coming to nothing, slightly come to nothing and seriously come to nothing, facilitate maintenance.
Description
Technical field
The present invention relates to highway bridge detection technique fields, take in particular to a kind of bridge based on Ground Penetrating Radar
Plate come to nothing quantification identification with automatic identification method.
Background technique
Hazard to bridge's pier is the important construction measure between the larger bridge structure object of coupling stiffness and flexible roadbed, and brow plate emptying draws
Playing fracture will have a direct impact on traffic safety.The reason of causing hazard to bridge's pier to come to nothing has: filler leakiness, filler at platform back at attachment strap
Loss, supplement compacting of board bottom roadbed etc..At present for the detection of highway Abutment disease, take mostly or by traditional drilling
Core or method of digging pit, its advantage is that intuitively, the disadvantage is that the damaging impact to highway acts on, frequency is low, speed is slow, it is tight to be formed
Close continuous detection, evaluation are not representative, are difficult to comprehensively find hidden danger of quality, to be not easy to reach ideal detection mesh
's.
In view of drawbacks described above, the applicant is positive to be studied, to found a kind of bridge based on Ground Penetrating Radar
The identification of beam brow plate emptying quantification and automatic identification method, make it have more application value, are monitored by Ground Penetrating Radar, visited
The working principle of ground radar is that antenna emits one group of hyperfrequency short pulse electromagnetic wave, which encounters not in communication process
With medium can generate back wave, the inside of underground medium is inferred by the analysis of the parameters such as amplitude to back wave and phase
Structure situation, and depth, the distribution situation etc. of detection body other characteristic parameters.
Summary of the invention
In view of the above drawbacks, the invention proposes a kind of, and the bridge brow plate emptying quantification based on Ground Penetrating Radar identifies and oneself
Dynamic identification method, it is intended to which speed is slow, discontinuous and be easy to cause impact when solving hazard to bridge's pier vacant analysis in the prior art
The technical issues of destruction.
On one side, the bridge brow plate emptying quantification identification that the invention proposes a kind of based on Ground Penetrating Radar and automatic mark
Knowledge method, includes the following steps:
Step S1: detection is carried out to lap slab of bridge using Ground Penetrating Radar and obtains radar waveform image；
Step S2: radar waveform image is converted into gray level image；
Step S3: analyzing the amplitude of gray level image, judges bridge brow plate emptying depth according to amplitude size；
Step S4: the color shown according to the limit value setting image of amplitude obtains radar color image.
Further, in the step S2, gray level image is drawn according to the amplitude size of radar waveform image, amplitude
Bigger, color is deeper.
Further, in the step S3, the relationship between amplitude size and bridge brow plate emptying depth is as follows:
As amplitude < 1000, lap slab of bridge does not come to nothing；
When 1000≤amplitude < 2500, lap slab of bridge appearance slightly is come to nothing, and depth of coming to nothing is 0mm~4mm；
When amplitude >=2500, lap slab of bridge appearance seriously is come to nothing, and depth of coming to nothing is greater than 4mm.
Further, there are three the limit values of amplitude, three kinds of degree of coming to nothing of lap slab of bridge are represented, specific as follows:
As amplitude < 1000, represents nothing and come to nothing；
When 1000≤amplitude < 2500, representative is slightly come to nothing；
When amplitude >=2500, representative is seriously come to nothing.
Further, radar color image includes at least three kinds of colorations, respectively corresponds three kinds of degree of coming to nothing, and degree of coming to nothing
Higher, color is more bright-coloured.
Further, the Ground Penetrating Radar is fixed on automobile rear bumper by fixed device.
Further, the fixed device includes connecting plate, runing rest, adjusting bracket, fixed bracket；
It is affixed with automobile rear bumper on the left of the connecting plate；
The runing rest one end is rotatably connected with the connecting plate, and the other end is outward extended with horizontal part, described
Horizontal part bottom end offers spherical slot, and steel ball is provided in spherical slot, is provided with threaded hole in the steel ball,
The adjusting bracket is arranged below the runing rest, to adjust the rotational angle of the runing rest；
The fixed bracket setting is threadedly coupled below the steel ball, and with the steel ball, the fixed bracket
To fixed Ground Penetrating Radar shell.
Further, the adjusting bracket includes inclined wedge guide plate, L shape bottom plate, bolt；
The L shape bottom plate one end and the connecting plate side wall are affixed, and the other side offers threaded hole；
The inclined wedge guide plate is arranged between the connecting plate and the L shape bottom plate, and the inclined-plane of the inclined wedge guide plate is upward
Setting；
The bolt is threaded through in the threaded hole of the L shape bottom plate, and bottom end and the inclined wedge guide plate side wall are inconsistent.
Further, the fixed bracket includes screw rod, clamping portion, and the clamping portion bottom side is provided with baffle, on baffle
It is provided with threaded hole, is equipped with bolt in threaded hole.
Further, damping device is provided between the clamping portion and Ground Penetrating Radar shell, the damping device includes
Upper guide plate, bottom guide, yielding rubber；
The upper guide plate and the bottom guide are bolted；
The yielding rubber is arranged between the upper guide plate and the bottom guide, and the yielding rubber upper end is provided with wave
Shape wave is raised, forms damping chamber between the two neighboring wavy bulge, is provided with damping spring in the damping chamber.
Compared with prior art, the beneficial effects of the present invention are the bridge proposed by the present invention based on Ground Penetrating Radar is taken
Plate come to nothing quantification identification with automatic identification method by Ground Penetrating Radar to lap slab of bridge carry out detection acquisition radar waveform image,
It avoids boring and coring or digs pit, realize quick, lossless, the continuous detection to bridge brow plate emptying, quantitative evaluation comes to nothing
It is strong to evaluate representativeness for severity, and by different color identifier gray level images, eye-catching observing can not have intuitively
The region come to nothing, slightly come to nothing and seriously come to nothing, facilitates maintenance.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the bridge brow plate emptying quantification identification provided in an embodiment of the present invention based on Ground Penetrating Radar and automatic mark
The flow diagram of method；
Fig. 2 is the structural schematic diagram of fixed device provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of damping device provided in an embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.It should be noted that in the absence of conflict, embodiment in the present invention and
Feature in embodiment can be combined with each other.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Refering to fig. 1, as seen from the figure, the bridge brow plate emptying quantification based on Ground Penetrating Radar that the embodiment of the present invention proposes is known
Not with automatic identification method, which comprises the steps of:
Step S1: detection is carried out to lap slab of bridge using Ground Penetrating Radar and obtains radar waveform image；
Step S2: radar waveform image is converted into gray level image, gray level image is big according to the amplitude of radar waveform image
Small to draw, amplitude is bigger, and color is deeper；
Step S3: analyzing the amplitude of gray level image, bridge brow plate emptying depth is judged according to amplitude size, as amplitude <
When 1000, lap slab of bridge does not come to nothing, and when 1000≤amplitude < 2500, lap slab of bridge appearance is slightly come to nothing, depth of coming to nothing
For 0mm~4mm, when amplitude >=2500, lap slab of bridge appearance seriously is come to nothing, and depth of coming to nothing is greater than 4mm.In the present embodiment
There are three the limit values of amplitude, represents three kinds of degree of coming to nothing of lap slab of bridge, and it is < 1000 that they, which are respectively as follows: amplitude limit value, generation
Table is without coming to nothing；Amplitude limit value between 1000~2500, slightly come to nothing by representative；Amplitude limit value > 2500 represent serious de-
It is empty.
Step S4: the color shown according to the limit value setting image of amplitude obtains radar color image, radar cromogram
As including at least three kinds of colorations, three kinds of degree of coming to nothing are respectively corresponded, and degree of coming to nothing is higher, color is more bright-coloured.
It is that certain lap slab of bridge detections of radar and drill core measurement result compare refering to following table, as can be seen from the comparison result,
Amplitude is bigger, and bridge brow plate emptying degree is higher.
| Serial number | Pile No. | Position | Amplitude A | Depth (mm) is come to nothing in actual measurement |
| 1 | K1011+350 | Two lane highways are right | 1328 | 2 |
| 2 | K1011+080 | Two lane highways are right | 1760 | 4 |
| 3 | K1011+302 | Two lane highways are right | 2160 | 3.8 |
| 4 | K1010+420 | Two lane highways are right | 2306 | 4.1 |
| 5 | K1010+400 | Two lane highways are right | 2654 | 5.6 |
| 6 | K1012+356 | Two lane highways are right | 2855 | 6.4 |
Refering to Fig. 2 and Fig. 3, as seen from the figure, Ground Penetrating Radar is fixed on automobile rear bumper by fixed device, fixed dress
It sets including connecting plate 1, runing rest 2, adjusting bracket 3, fixed bracket 4,1 left side of connecting plate is affixed with automobile rear bumper, rotation
2 one end of bracket is rotatably connected with connecting plate 1, and the other end is outward extended with horizontal part 21, and 21 bottom end of horizontal part offers ball
Shape slot is provided with steel ball 211 in spherical slot, threaded hole is provided in steel ball 211, the setting of adjusting bracket 3 is in rotation branch
2 lower section of frame, to adjust the rotational angle of runing rest 2, fixed bracket 4 is arranged below steel ball 211, and and steel ball
211 are threadedly coupled, and fixed bracket 4 is to fixed Ground Penetrating Radar shell, the setting of steel ball 211, it can be ensured that Ground Penetrating Radar shell
Body is constantly in horizontality, and adjusting bracket 3 includes inclined wedge guide plate 31, L shape bottom plate 32, bolt 33,32 one end of L shape bottom plate and company
1 side wall of fishplate bar is affixed, and the other side offers threaded hole, and inclined wedge guide plate 31 is arranged between connecting plate 1 and L shape bottom plate 32, inclined wedge
The inclined-plane of guide plate 31 is arranged upward, and bolt 33 is threaded through in the threaded hole of L shape bottom plate 32, and bottom end and 31 side wall phase of inclined wedge guide plate
It contradicts, inclined wedge guide plate 31 can be pushed to advance or retreat by rotating bolt 33, then realize the tune of 2 angle of runing rest
Section, fixed bracket 4 includes screw rod 41, clamping portion 42, and 42 bottom side of clamping portion is provided with baffle, threaded hole, spiral shell are provided on baffle
It is equipped with bolt in pit, is extended with clamping platform on the upside of Ground Penetrating Radar shell, it, can after clamping platform is connected on the inside of baffle
It is further fastened by bolt, damping device 6 is provided between clamping portion 42 and Ground Penetrating Radar shell, damping device 6 includes upper
Guide plate 61, bottom guide 62, yielding rubber 63, wherein upper guide plate 61 and bottom guide 62 are bolted, and yielding rubber 63 is arranged
Between upper guide plate 61 and bottom guide 62,63 upper end of yielding rubber is provided with wavy bulge 631, two neighboring wavy bulge
Damping chamber 632 is formed between 631, is provided with damping spring 6321 in damping chamber 632, when being squeezed power (such as road surface
Injustice generates shaking) when, wavy bulge 631 first carries out level-one damping, after deformation occurs for wavy bulge, damping spring
6321 may be implemented second level damping.Prevent Ground Penetrating Radar from damaging due to shaking.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of bridge brow plate emptying quantification identification based on Ground Penetrating Radar and automatic identification method, which is characterized in that including
Following steps:
Step S1: detection is carried out to lap slab of bridge using Ground Penetrating Radar and obtains radar waveform image；
Step S2: radar waveform image is converted into gray level image；
Step S3: analyzing the amplitude of gray level image, judges bridge brow plate emptying depth according to amplitude size；
Step S4: the color shown according to the limit value setting image of amplitude obtains radar color image.
2. the bridge brow plate emptying quantification identification according to claim 1 based on Ground Penetrating Radar and automatic identification method,
It is characterized in that, gray level image is drawn according to the amplitude size of radar waveform image, and amplitude is bigger in the step S2,
Color is deeper.
3. the bridge brow plate emptying quantification identification according to claim 1 based on Ground Penetrating Radar and automatic identification method,
It is characterized in that, the relationship between amplitude size and bridge brow plate emptying depth is as follows in the step S3:
As amplitude < 1000, lap slab of bridge does not come to nothing；
When 1000≤amplitude < 2500, lap slab of bridge appearance slightly is come to nothing, and depth of coming to nothing is 0mm~4mm；
When amplitude >=2500, lap slab of bridge appearance seriously is come to nothing, and depth of coming to nothing is greater than 4mm.
4. the bridge brow plate emptying quantification identification according to claim 3 based on Ground Penetrating Radar and automatic identification method,
It is characterized in that, three kinds of degree of coming to nothing of lap slab of bridge are represented there are three the limit values of amplitude, it is specific as follows:
As amplitude < 1000, represents nothing and come to nothing；
When 1000≤amplitude < 2500, representative is slightly come to nothing；
When amplitude >=2500, representative is seriously come to nothing.
5. the bridge brow plate emptying quantification identification according to claim 4 based on Ground Penetrating Radar and automatic identification method,
It is characterized in that, radar color image includes at least three kinds of colorations, three kinds of degree of coming to nothing are respectively corresponded, and degree of coming to nothing is higher,
Color is more bright-coloured.
6. the bridge brow plate emptying quantification identification according to claim 1 based on Ground Penetrating Radar and automatic identification method,
It is characterized in that, the Ground Penetrating Radar is fixed on automobile rear bumper by fixed device.
7. the bridge brow plate emptying quantification identification according to claim 6 based on Ground Penetrating Radar and automatic identification method,
It is characterized in that, the fixed device includes connecting plate (1), runing rest (2), adjusting bracket (3), fixed bracket (4)；
It is affixed with automobile rear bumper on the left of the connecting plate (1)；
Runing rest (2) one end is rotatably connected with the connecting plate (1), and the other end is outward extended with horizontal part
(21), horizontal part (21) bottom end offers spherical slot, and steel ball (211), the steel ball are provided in spherical slot
(211) threaded hole is provided on,
Adjusting bracket (3) setting is below the runing rest (2), to adjust the rotational angle of the runing rest (2)；
Fixed bracket (4) setting is threadedly coupled below the steel ball (211) with the steel ball (211), described
Fixed bracket (4) are to fixed Ground Penetrating Radar shell.
8. the bridge brow plate emptying quantification identification according to claim 7 based on Ground Penetrating Radar and automatic identification method,
It is characterized in that, the adjusting bracket (3) includes inclined wedge guide plate (31), L shape bottom plate (32), bolt (33)；
L shape bottom plate (32) one end and the connecting plate (1) side wall are affixed, and the other side offers threaded hole；
The inclined wedge guide plate (31) is arranged between the connecting plate (1) and the L shape bottom plate (32), the inclined wedge guide plate (31)
Inclined-plane be arranged upward；
The bolt (33) is threaded through in the threaded hole of the L shape bottom plate (32), and bottom end and inclined wedge guide plate (31) side wall
It is inconsistent.
9. the bridge brow plate emptying quantification identification according to claim 8 based on Ground Penetrating Radar and automatic identification method,
It is characterized in that, the fixed bracket (4) includes screw rod (41), clamping portion (42), clamping portion (42) bottom side is provided with gear
Plate is provided with threaded hole on baffle, is equipped with bolt in threaded hole.
10. the bridge brow plate emptying quantification identification according to claim 9 based on Ground Penetrating Radar and automatic identification method,
It is characterized in that, being provided with damping device (6) between the clamping portion (42) and Ground Penetrating Radar shell, the damping device (6)
Including upper guide plate (61), bottom guide (62), yielding rubber (63)；
The upper guide plate (61) and the bottom guide (62) are bolted；
The yielding rubber (63) is arranged between the upper guide plate (61) and the bottom guide (62), the yielding rubber (63)
Upper end is provided with wavy bulge (631), forms damping chamber (632) between the two neighboring wavy bulge (631), institute
It states in damping chamber (632) and is provided with damping spring (6321).
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| CN201811534532.8A CN109581364A (en) | 2018-12-14 | 2018-12-14 | The identification of bridge brow plate emptying quantification and automatic identification method based on Ground Penetrating Radar |
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Cited By (1)
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| CN110244295A (en) * | 2019-07-17 | 2019-09-17 | 广州大学 | Underground linear goal based on polarization Ground Penetrating Radar moves towards measurement method and system |
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