CN209182284U - A kind of bridge prestress pore channel mud jacking compactness supersonic detection device - Google Patents
A kind of bridge prestress pore channel mud jacking compactness supersonic detection device Download PDFInfo
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- CN209182284U CN209182284U CN201821293469.9U CN201821293469U CN209182284U CN 209182284 U CN209182284 U CN 209182284U CN 201821293469 U CN201821293469 U CN 201821293469U CN 209182284 U CN209182284 U CN 209182284U
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Abstract
The utility model discloses a kind of bridge prestress pore channel mud jacking compactness supersonic detection devices, including detection device and beams of concrete, supersonic generator is provided on detection device, supersonic generator is electrically connected ultrasound emission energy converter, signal filter and amplification module is provided on detection device, signal filter and amplification module includes filter and signal amplifier, filter is electrically connected ultrasonic reception energy converter, signal amplifier is electrically connected A/D converter, A/D converter is electrically connected data processing module, data processing module includes data collector, data storage and data processor (DSP), data collector is electrically connected data storage, data storage is electrically connected data processor (DSP), data processor (DSP) is electrically connected tangible display module, the inner cavity of beams of concrete is provided with prestress pipe, The device has (detection concrete depth reaches 35cm or more) simple for structure, applied widely, operates conveniently, detection accuracy height.
Description
Technical field
The utility model relates to Bridge Inspection field more particularly to a kind of bridge prestress pore channel mud jacking compactness are super
Sound detection device.
Background technique
In post-tensioned prestressed concrete bridge, the squeezing quality of prestress pipe is Prestressed Concrete Bridges durability
An important factor in order.If there is cavity in hole path pressure grouting leakiness, it will cause prestress wire to be corroded,
So as to cause effective prestress reduction.Even can steel strand wires be broken when serious, to seriously affect prestressed concrete
The bearing capacity and service life of native bridge.
Due to recognizing the importance of hole path pressure grouting compactness, domestic and foreign scholars have just carried out at the beginning of this century about pre-
A variety of detection methods, such as Impact echo, spy has had been developed in the research of stress hole path pressure grouting compactness inspection method so far
The methods of ground radar method, X-ray transmission method.
(1) Impact echo is the stress wave that low frequency is generated using a mechanical shock in short-term, and stress wave is constructing just
Roundtrip between face, internal flaw surface or component surface bottom boundary, to generate transient state resonance, resonant frequency can be
It makes out and in amplitude spectrum, and determine the depth of internal flaw and the thickness of component with this.This method advantage is that test scope is big,
It is low to the requirement of extraneous operating environment, but when concrete coating thickness reaches 20cm or more, the precision of this method just meets not
Test request.
(2) Ground Penetrating Radar method emits frequency electromagnetic waves to concrete structure by transmitting antenna, is received by receiving antenna
Reflection electromagnetic wave, electromagnetic wave reflect when encountering the interface there are electrical property difference when propagating in concrete, according to receiving
Waveform, oscillator intensity and the variation characteristic of time of electromagnetic wave infer spatial position, the structural form etc. of medium.Though this method skill
Art is more mature, but more sensitive to metal, and the permitivity of prestressing force metal bellows is big, and screen can be played to bellows interior situation
The side effect covered causes Electromagnetic Wave Detection not to be suitable for the detection of mud jacking inside metal bellows.
(3) x-ray projective method is that the absorptivity of x light, difference detects bellows interior mud jacking using different material
Situation, i.e. mud jacking dense portion are high to the absorptivity of x light and hollow sectors are low to the absorptivity of x light.Although x optical transmission method result
Distinct intuitive, detection accuracy is high, can test the thicker beam slab of concrete cladding thickness, but x light imaging apparatus is complicated, there is certain spoke
It penetrates, practical operation is not easy and higher cost, current practice are less.
(4) ultrasonic Detection Method encounters cavity or reflection when heterogeneous interface according to ultrasonic wave in concrete communication process
The parameters,acoustics such as the velocity of sound, wave amplitude and the frequency of echo analyze and determine the whether closely knit situation of mud jacking.But due to concrete itself
Characteristic make high frequency band larger in decaying wherein, and the directive property that sound wave is propagated in concrete is poor, while in companion
In the case where having random noise, so that the detection accuracy of current detection device and method is unable to satisfy engine request.
For this purpose, those skilled in the technology concerned improve this, as Chinese Patent Application No. is
201210041614.5 propose " a kind of ultrasound detection bridge, T beam, box girder pre-stressed duct bellows compactness of grouting (lack
Fall into) device and method ", in this application file, by high-power signal source forcing ultrasonic signal emission module generate high frequency it is big
Power ultrasonic, ultrasonic signal receiving module array received by defect reflection ultrasonic signal and be converted into electric signal, then
Handle through detection signal processing and display unit module and imaging output is carried out to ultrasonic signal, is sentenced according to obtained image
Slip casting plumpness in disconnected bellows.But the program needs in advance in bridge, T beam or box beam internal reservation one and slip casting bellows
Parallel sense channel and inside will be full of ultrasonic coupling propagation medium, this makes the device may not apply to not set detection
In the detection of the prestress hole path pressure grouting compactness of the existing bridge in duct, the use scope of the device is very limited, and is
This, we have proposed a kind of bridge prestress pore channel mud jacking compactness supersonic detection devices.
Utility model content
The purpose of the utility model is to overcome the above-mentioned problems in the prior art, provide a kind of bridge prestress hole
Road mud jacking compactness supersonic detection device, the device have it is simple for structure, applied widely (detection concrete depth up to 35cm with
On), operate conveniently, the features such as detection accuracy is high.
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions:
A kind of bridge prestress pore channel mud jacking compactness supersonic detection device, including detection device and beams of concrete, it is described
Supersonic generator is provided on detection device, the supersonic generator is electrically connected ultrasound emission energy converter, and the detection is set
Standby to be above provided with signal filter and amplification module, the signal filter and amplification module includes filter and signal amplifier, and is filtered
Device is electrically connected signal amplifier, and the filter is electrically connected ultrasonic reception energy converter, and ultrasound emission energy converter and ultrasonic reception
Energy converter is installed in the top of beams of concrete, and the signal amplifier is electrically connected A/D converter, and the A/D converter is electrically connected
Data processing module is connect, the data processing module includes data collector, data storage and data processor (DSP), institute
Data collector electrical connection data storage is stated, the data storage is electrically connected data processor (DSP), the data processing
Device (DSP) is electrically connected tangible display module, and the inner cavity of the beams of concrete is provided with prestress pipe.
Preferably, in above-mentioned bridge prestress pore channel mud jacking compactness supersonic detection device, the ultrasound emission energy converter
Spacing distance between ultrasonic reception energy converter is L, and the ultrasound emission energy converter and ultrasonic reception energy converter measure time shift
Dynamic distance is a, and the L is 3-5 times of a, and mobile identical distance a, can complete multi-point sampler and adopt when measuring every time in this way
Collect work.
Preferably, in above-mentioned bridge prestress pore channel mud jacking compactness supersonic detection device, the tangible display module
Comprising liquid crystal display and capacitance touch screen, liquid crystal display can show that capacitance touch screen is convenient for data and figure
Input control operation information, and personnel convenient to use carry out operation control.
Preferably, in above-mentioned bridge prestress pore channel mud jacking compactness supersonic detection device, the capacitance touch screen is work
Industry grade touch display screen, technical grade touch display screen are easy to get, and can be very good the use needs for meeting the present apparatus.
Preferably, the frequency of above-mentioned ultrasonic wave is 30KH, and is propagated in concrete,
Preferably, in above-mentioned bridge prestress pore channel mud jacking compactness supersonic detection device, the filter is programmable
Filter, so that control operation can be programmed to filter, improve the use adaptability of device.
The beneficial effects of the utility model are:
The structure design of the utility model is reasonable, and the technical solution in one side the utility model has simple for structure, applicable
Range wide (detection concrete depth reaches 35cm or more) operates conveniently, the features such as detection accuracy is high, another aspect the utility model
In technical solution be to provide the detection side of prestress hole path pressure grouting compactness based on wide-range ultrasonic detection technology a kind of
Method, this method judge the mud jacking compactness situation of detected position, the detection method according to the spectrum signature of ultrasound emission wave
Principle is simple, easy to operate, precision is high, applied widely, compares other detection methods, and the detection method of the utility model has original
Manage the features such as simple, easy to operate, detection accuracy is high, applied widely, work efficiency is high.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the detection implementation diagram one of the utility model；
Fig. 3 is the detection implementation diagram two of the utility model；
Fig. 4 is the portion A structure enlargement diagram in Fig. 3；
Fig. 5 is the spectrum distribution schematic diagram of the utility model；
In attached drawing, parts list represented by the reference numerals are as follows:
1- detection device, 2- supersonic generator, 3- ultrasound emission energy converter, 4- ultrasonic reception energy converter, 5- filter,
6- signal filter and amplification module, 7- signal amplifier, 8-A/D converter, 9- data processing module, 10- data collector, 11-
Data storage, 12- data processor (DSP), the tangible display module of 13-, 14- beams of concrete, 15- prestress pipe, 16-
Ultrasonic wave route of transmission.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
It please refers to shown in Fig. 1-5, the present embodiment is a kind of bridge prestress pore channel mud jacking compactness supersonic detection device, packet
Detection device 1 and beams of concrete 14 are included, supersonic generator 2 is provided on detection device 1, the electrical connection of supersonic generator 2 is super
Acoustic emission transducer 3, signal filter and amplification module 6 is provided on detection device 1, and signal filter and amplification module 6 includes filter 5
With signal amplifier 7, and filter 5 be electrically connected signal amplifier 7, filter 5 be programmable filter, so that can be right
Filter 5 is programmed control operation, improves the use adaptability of device, and filter 5 is electrically connected ultrasonic reception energy converter 4, and
Ultrasound emission energy converter 3 and ultrasonic reception energy converter 4 are installed in the top of beams of concrete 14, ultrasound emission energy converter 3 and super
Spacing distance between sound reception energy converter 4 is L, ultrasound emission energy converter 3 and ultrasonic reception energy converter 4 when measuring it is mobile away from
From being 3-5 times of a for a, L, mobile identical distance a, can complete multi-point sampler collecting work, signal when measuring every time in this way
Amplifier 7 is electrically connected A/D converter 8, and A/D converter 8 is electrically connected data processing module 9, and data processing module 9 is adopted including data
Storage 10, data storage 11 and data processor (DSP) 12, data collector 10 are electrically connected data storage 11, and data are deposited
Reservoir 11 is electrically connected data processor (DSP) 12, and data processor (DSP) 12 is electrically connected tangible display module 13, tangible
Display module 13 includes liquid crystal display and capacitance touch screen, and liquid crystal display can show data and figure, capacitor
Touch screen is convenient for input control operation information, and personnel convenient to use carry out operation control, and capacitance touch screen is technical grade touch
Display screen, technical grade touch display screen are easy to get, and can be very good the use needs for meeting the present apparatus, beams of concrete 14
Inner cavity is provided with prestress pipe 15.
It is detection device terminal with compact integral structure, easy to operate, applied widely: to pass through 2 excitation ultrasound wave of ultrasonic generator and send out
It penetrates energy converter 3 and issues ultrasonic wave in detection zone, ultrasonic wave receives energy converter 3 and receives the ultrasonic wave reflected through detection zone simultaneously
It is sent to the filter 5 and signal amplifier 7 for filtering and amplifying received signal, is further sent to 8 turns of A/D converter
Digital signal is changed into, further by tangible display module 13 after data processing module 9 carries out data acquisition, storage, processing
It has been shown that, detection device 1 determines whether prestress hole path pressure grouting closely knit based on wide-range ultrasonic detection technology, i.e., due to
The spectrum peak of reflected ultrasonic wave is distributed in high frequency region at mud jacking cavity, and the reflected ultrasonic wave spectrum peak at the closely knit place of mud jacking divides
Cloth just can determine that the mud jacking of detection zone is closely knit in low frequency range, therefore by the waveform and frequency spectrum of comparative analysis reflected ultrasonic wave
Degree compares other detection methods, and the detection method of the utility model is with principle is simple, easy to operate, detection accuracy is high, applicable
The features such as range is wide, work efficiency is high.
A kind of detection method of bridge prestress pore channel mud jacking compactness supersonic detection device, the bridge prestress pore channel pressure
Starch the specific steps of compactness supersonic detection device and its detection method are as follows:
Step 1: according to design drawing, prestress pipe corresponding position is described in the side elevation of beams of concrete, and determine beam
Side elevation to prestress pipe concrete thickness；
Step 2: the ultrasound emission energy converter of the detection device and ultrasonic reception energy converter interval L distance are placed in
It has coated at the area to be tested of contact material；
Step 3: opening the detection device, excites the ultrasonic wave of different frequency range to detector segments and receives echo；
Step 4: further to achieve the effect that eliminate noise amplified signal, multi-point sampler side is taken in the test section
Case, ultrasound emission energy converter spacing L identical as ultrasonic reception energy converter holding are moved along prestress pipe to same direction simultaneously
Dynamic segment distance a carries out multiple mobile test ultrasound transmitting transducer transmitting ultrasonic wave as needed, penetrates beams of concrete and support
To prestress pipe, straightline propagation is done via prestress pipe guiding, and ultrasonic wave is received by ultrasonic reception energy converter；
Step 5: the collected signal of multi-point sampler is carried out data conversion, acquisition, storage, processing by detection device, aobvious
Waveform diagram and spectrogram are shown on display screen curtain；
Step 6: comparing and analyzing according to spectral reflection figure, if reflex amplitude is distributed in high-frequency region (80KHZ
Left and right) then show mud jacking leakiness or there is cavity, reflex amplitude table if being distributed in low frequency region (20KHZ~40KHZ)
The bright detector segments mud jacking is closely knit.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (5)
1. a kind of bridge prestress pore channel mud jacking compactness supersonic detection device, it is characterised in that: including detection device and coagulation
Tu Liang, supersonic generator is provided on the detection device, and the supersonic generator is electrically connected ultrasound emission energy converter, institute
It states and is provided with signal filter and amplification module on detection device, the signal filter and amplification module includes filter and signal amplification
Device, and filter is electrically connected signal amplifier, the filter are electrically connected ultrasonic reception energy converter, and ultrasound emission energy converter and
Ultrasonic reception energy converter is installed in the top of beams of concrete, and the signal amplifier is electrically connected A/D converter, and the A/D turns
Parallel operation is electrically connected data processing module, and the data processing module includes data collector, data storage and data processor
(DSP), the data collector is electrically connected data storage, and the data storage is electrically connected data processor (DSP), described
Data processor (DSP) is electrically connected tangible display module, and the inner cavity of the beams of concrete is provided with prestress pipe.
2. a kind of bridge prestress pore channel mud jacking compactness supersonic detection device according to claim 1, it is characterised in that:
Spacing distance between the ultrasound emission energy converter and ultrasonic reception energy converter is L, the ultrasound emission energy converter and ultrasound
Mobile distance is a when receiving energy converter measurement, and the L is 3-5 times of a.
3. a kind of bridge prestress pore channel mud jacking compactness supersonic detection device according to claim 1, it is characterised in that:
The tangible display module includes liquid crystal display and capacitance touch screen.
4. a kind of bridge prestress pore channel mud jacking compactness supersonic detection device according to claim 3, it is characterised in that:
The capacitance touch screen is technical grade touch display screen.
5. a kind of bridge prestress pore channel mud jacking compactness supersonic detection device according to claim 1, it is characterised in that:
The filter is programmable filter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821293469.9U CN209182284U (en) | 2018-08-10 | 2018-08-10 | A kind of bridge prestress pore channel mud jacking compactness supersonic detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821293469.9U CN209182284U (en) | 2018-08-10 | 2018-08-10 | A kind of bridge prestress pore channel mud jacking compactness supersonic detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115878A (en) * | 2018-08-10 | 2019-01-01 | 宁波市交通建设工程试验检测中心有限公司 | A kind of bridge prestress pore channel mud jacking compactness supersonic detection device and its detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109115878A (en) * | 2018-08-10 | 2019-01-01 | 宁波市交通建设工程试验检测中心有限公司 | A kind of bridge prestress pore channel mud jacking compactness supersonic detection device and its detection method |
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Effective date of registration: 20191121 Address after: 315124 Zhejiang city in Ningbo province Dongqian Lake resort Mei fang Road No. 12 Patentee after: Ningbo Traffic Construction Engineering Test Center Co., Ltd. Address before: 315124 Zhejiang city in Ningbo province Dongqian Lake resort Mei fang Road No. 12 Co-patentee before: Cixi Traffic Construction Investment Co., Ltd. Patentee before: Ningbo Traffic Construction Engineering Test Center Co., Ltd. |