CN109507293A - A kind of foundation pile imager and method using the velocity of sound and energy definition defective locations - Google Patents
A kind of foundation pile imager and method using the velocity of sound and energy definition defective locations Download PDFInfo
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- CN109507293A CN109507293A CN201811041371.9A CN201811041371A CN109507293A CN 109507293 A CN109507293 A CN 109507293A CN 201811041371 A CN201811041371 A CN 201811041371A CN 109507293 A CN109507293 A CN 109507293A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0654—Imaging
- G01N29/069—Defect imaging, localisation and sizing using, e.g. time of flight diffraction [TOFD], synthetic aperture focusing technique [SAFT], Amplituden-Laufzeit-Ortskurven [ALOK] technique
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/011—Velocity or travel time
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of foundation pile imagers using the velocity of sound and energy definition defective locations, including host, the host is connected with depth controller and energy converter, in which: host: for emitting electric signal to transmitting transducer, for receiving the electric signal for receiving energy converter；For receiving the depth signal of depth controller transmission；Depth controller: host is transmitted to for recording energy converter depth, and by depth information.The present invention can obtain the defective locations and flaw height of foundation pile section, to understand defect information in time, the testing time of the invention is short, test data calculating process is simple.
Description
Technical field
The present invention relates to foundation pile technical field of imaging, it particularly relates to which a kind of utilize the velocity of sound and energy definition defective bit
The foundation pile imager and method set.
Background technique
In the ultrasound examination of large bridge foundation pile, in order to accurately determine the size of abnormal position, by CT imaging technique
Be introduced into ultrasound examination, practical engineering application the result shows that, this technology has that high resolution, defect location be accurate, inspection
The features such as surveying visual result, clear image.Across hole covering of the fan method of testing is to carry out each portion to measured medium (such as pile detection)
The test method of the acoustic transit time of position, as shown in Figure 1.T1, T2, T3 ... T10 are each hairs of transmitting transducer in figure
Exit point, R1, R2, R3 ... R10 be receive energy converter receiving point, test process is: T1 transmitting, R1, R2, R3 ... R10 according to
Secondary reception；T2 transmitting, R1, R2, R3 ... R10 are successively received ..., are emitted to T10, and R1, R2, R3 ... R10 are successively received,
As sonic tomography shown in FIG. 1 transmitting, receive observation system.
But the amount of test data of this method is excessive, the testing time is too long, and only surveys data line, test data every time
It is analyzed only for the velocity of sound, and only can not obtain defect size in the X-Y scheme of the velocity of sound (velocity of wave) vertical direction
And the information of depth.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes a kind of the utilization velocity of sound and energy definition defective locations
Foundation pile imager and method, the above-mentioned deficiency of the prior art can be overcome.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
A kind of foundation pile imager using the velocity of sound and energy definition defective locations, including host, the host are connected with
Depth controller and energy converter, in which:
Host: for emitting electric signal to transmitting transducer, for receiving the electric signal of energy converter；For receiving depth control
The depth signal of device transmission processed；
Depth controller: host is transmitted to for recording energy converter depth, and by depth information.
Further, the energy converter includes transmitting transducer and reception energy converter.
The present invention also provides a kind of pile foundation inspection methods using the velocity of sound and energy definition defective locations, which is characterized in that
Include the following steps:
S1: tri- energy converters of A, B and C are put into sounding bottom of the tube, the line of each energy converter is passed through into deep-controlled dress
It sets and is connected to host；
S2: by depth control apparatus control three energy converters of Synchronous lifting, respectively record energy converter be in initial position and
The data of plane where after promotion certain intervals；
S3: axial flaw position and planar disfigurement position are obtained according to data；
S4: carrying out pipe to data and tiltedly correct, and calculates the calculated abnormal area of entire pile body, defect size and position and sits
Mark.
Further, step S3 is specifically included:
S3.1: according to the flat deviational survey mapping of specification drafting, the lap position of flat mapping and oblique mapping is axial flaw place
Position；
S3.2: drawing velocity of sound sound width perspective view, and the width of velocity of sound shade is equal to the height of abnormal point in velocity of sound figure, in sound
The width of sound width shade is unilateral equal to the height of abnormal point in width figure subtracts 0.15 meter；
S3.3: the position for thering is the characteristics of differential responses to determine planar disfigurement according to defect of the sound wave sound width to different zones.
Further, step S4 is specifically included:
S4.1: pipe is carried out by specification to data and is tiltedly corrected；
S4.2: to pipe, tiltedly revised data are normalized；
S4.3: the velocity of sound sound width solid distribution map of entire foundation pile is drawn out according to the data after normalized, to figure
Carry out finite element grid processing；
S4.4: finding out abnormal point, and abnormal point is connected, and calculates the size of abnormal area.
Preferably, step S4.2 is specifically included:
S4.2.1: being normalized acoustic velocity value, specifically includes:
S4.2.11: the average value of tri- vertical plane acoustic velocity values of AB, AC and BC is calculated
In formula: VABIndicate the acoustic velocity value in the face vertical plane AB where A energy converter and B energy converter line, VBCIndicate B transducing
The acoustic velocity value of vertical plane BC where device and C energy converter line, VACIndicate the vertical plane where A energy converter and C energy converter line
The acoustic velocity value of AC；
S4.2.12: carrying out ratio amendment to three vertical planes respectively, and by taking the face AB as an example, ratio amendment is as follows: first calculating
Ratio correction coefficient α outAB:Then to the value V of any depth on AB vertical planeABiIt is modified, is corrected
Depth V afterwardsABi', correction formula are as follows: VABi'=αABVABi；
S4.2.1: acoustic amplitude is normalized.
Beneficial effects of the present invention: the present invention can obtain the defective locations and flaw height of foundation pile section, thus in time
Understand defect information, the testing time of the invention is short, test data calculating process is simple.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of foundation pile imager using the velocity of sound and energy definition defective locations described according to embodiments of the present invention
Connection block diagram；
Fig. 2 is that determining for the axial flaw position described according to embodiments of the present invention is schemed；
Fig. 3 is that determining for planar disfigurement is schemed；
Fig. 4 a, 4b, 4c and 4d are that determining for integral planar defect is schemed.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in Figure 1, a kind of foundation pile using the velocity of sound and energy definition defective locations described according to embodiments of the present invention
Imager, including host, the host are connected with depth controller and energy converter, in which:
Host: for emitting electric signal to transmitting transducer, for receiving the electric signal of energy converter；For receiving depth control
The depth signal of device transmission processed；
Depth controller: host is transmitted to for recording energy converter depth, and by depth information.
Further, the energy converter includes transmitting transducer and reception energy converter.
The present invention also provides a kind of pile foundation inspection methods using the velocity of sound and energy definition defective locations, which is characterized in that
Include the following steps:
S1: tri- energy converters of A, B and C are put into sounding bottom of the tube, the line of each energy converter is passed through into deep-controlled dress
It sets and is connected to host；
S2: by depth control apparatus control three energy converters of Synchronous lifting, respectively record energy converter be in initial position and
The data of plane where after promotion certain intervals；
S3: axial flaw position and planar disfigurement position are obtained according to data；
S4: carrying out pipe to data and tiltedly correct, and calculates the calculated abnormal area of entire pile body, defect size and position and sits
Mark.
Further, step S3 is specifically included:
S3.1: according to the flat deviational survey mapping of specification drafting, the lap position of flat mapping and oblique mapping is axial flaw place
Position, as shown in Figure 2；
S3.2: drawing velocity of sound sound width perspective view, and the width of velocity of sound shade is equal to the height of abnormal point in velocity of sound figure, in sound
The width of sound width shade is unilateral equal to the height of abnormal point in width figure subtracts 0.15 meter；
S3.3: the position for thering is the characteristics of differential responses to determine planar disfigurement according to defect of the sound wave sound width to different zones.
Further, step S4 is specifically included:
S4.1: pipe is carried out by specification to data and is tiltedly corrected；
S4.2: to pipe, tiltedly revised data are normalized；
S4.3: the velocity of sound sound width solid distribution map of entire foundation pile is drawn out according to the data after normalized, to figure
Carry out finite element grid processing；
S4.4: finding out abnormal point, and abnormal point is connected, and calculates the size of abnormal area.
Preferably, step S4.2 is specifically included:
S4.2.1: being normalized acoustic velocity value, specifically includes:
S4.2.11: the average value of tri- vertical plane acoustic velocity values of AB, AC and BC is calculated
In formula: VABIndicate the acoustic velocity value in the face vertical plane AB where A energy converter and B energy converter line, VBCIndicate B transducing
The acoustic velocity value of vertical plane BC where device and C energy converter line, VACIndicate the vertical plane where A energy converter and C energy converter line
The acoustic velocity value of AC；
S4.2.12: carrying out ratio amendment to three vertical planes respectively, and by taking the face AB as an example, ratio amendment is as follows: first calculating
Ratio correction coefficient α outAB:Then to the value V of any depth on AB vertical planeABiIt is modified, is corrected
Depth V afterwardsABi', correction formula are as follows: VABi'=αABVABi；
S4.2.1: acoustic amplitude is normalized.
In order to facilitate understanding above-mentioned technical proposal of the invention, below by way of in specifically used mode to of the invention above-mentioned
Technical solution is described in detail.
A kind of foundation pile imager and pile detection using the velocity of sound and energy definition defective locations according to the present invention
Energy converter after energy converter to be placed on to the bottom of sound detecting pipe, after recording data, is promoted a certain distance in test by method
It records data again afterwards, 0.05-0.1 meters is divided between general recommendations registered depth；According to the data of record according to standard (" highway
Engineering dynamic test for pile foundation technical regulation " JTG/T F81-01-2004, " architecture foundation pile inspection specifications " JGJ106-2014) it draws
Flat mapping and oblique mapping out, as shown in Fig. 2, three shade laps are exactly the position where axial flaw, then determine again
The position of the planar disfigurement of plane where tri- energy converters of ABC.
Receive energy converter it is received be an ellipsoid energy sound, long axis is the distance of two sound detecting pipes, short axle we
Energy converter is 0.38 meter.Half range influence is 0.19 meter, and our measuring point spacing is usually 0.05 meter, so influencing is usually three
A, as shown in Figure 3: for three defects A, B and C of plane, defect A is in except effective sound field of receiver, it is clear that this
In the case of, when the sound of sound wave, any variation do not had, that is, can't find defect A wave amplitude；Defect B is in effective sound field
Within, but not over O to O, line, at this moment there is no any variation when sound, this is because defect has blocked a part of sound energy,
It can make sound wave decreased amplitude；Defect C is within effective sound field, and has passed through O to O, line, at this moment sound wave will bypass defect
C gets to receive energy converter, and sound ray elongates, apparent acoustic velocity decline, while defect C has blocked sound energy, and wave amplitude also declines.Therefore on
The velocity of sound harmony width test result of A, B, C point different location of figure is different.When therefore determining planar disfigurement again, according to above-mentioned
Theory carries out inverting to test result and obtains, specific as follows:
If occurring exception when the wave amplitude of ac detection faces, sound, and the wave amplitude of bc detection faces is abnormal, sound Shi Zhengchang, ab inspection
Survey surface wave width, sound when it is normal, then it is concluded that the distribution of defect as shown in fig. 4 a；If ab detection faces and bc
Wave amplitude, sound when it is normal, and occur exception when ac detection faces wave amplitude, sound, may infer that the distribution of defect about as schemed
Shown in 4b；When inferring defect distribution range using effective sound field of receiver analysis, there are two types of special circumstances, it may be assumed that when there is a sound
The concrete of test tube part does not wrap, it would be possible that will appear erroneous judgement, such as Fig. 4 c；When fault location is at the center of stake, and locate
Other than the effective sound field of receiver range of tri- detection faces of ab, bc, ca, that is, fault location is in the blind area of test, such as Fig. 4 d
It will appear erroneous judgement；Therefore, also remind us when embedded three sound detecting pipe corings verifying, it can not be at the center of stake.
In conclusion the present invention can obtain the defective locations and flaw height of foundation pile section, to understand defect in time
Information, the testing time of the invention is short, test data calculating process is simple.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of foundation pile imager using the velocity of sound and energy definition defective locations, which is characterized in that including host, the master
Machine is connected with depth controller and energy converter, in which:
Host: for emitting electric signal to transmitting transducer, for receiving the electric signal for receiving energy converter；For receiving depth control
The depth signal of device transmission processed；
Depth controller: host is transmitted to for recording energy converter depth, and by depth information.
2. a kind of foundation pile imager using the velocity of sound and energy definition defective locations according to claim 1, feature exist
In the energy converter includes transmitting transducer and reception energy converter.
3. a kind of pile foundation inspection method using the velocity of sound and energy definition defective locations, which comprises the steps of:
S1: being put into sounding bottom of the tube for tri- energy converters of A, B and C, and the line of each energy converter is passed through depth control apparatus and is connected
It is connected to host；
S2: controlling three energy converters of Synchronous lifting by depth control apparatus, records energy converter respectively and is in initial position and promotion
The data of plane where after certain intervals；
S3: axial flaw position and planar disfigurement position are obtained according to data；
S4: carrying out pipe to data and tiltedly correct, and calculates the calculated abnormal area of entire pile body, defect size and position coordinates.
4. a kind of pile foundation inspection method using the velocity of sound and energy definition defective locations according to claim 3, feature
It is, step S3 is specifically included:
S3.1: according to the flat deviational survey mapping of specification drafting, the lap position of flat mapping and oblique mapping is axial flaw position；
S3.2: drawing velocity of sound sound width perspective view, and the width of velocity of sound shade is equal to the height of abnormal point in velocity of sound figure, in sound width figure
The width of middle sound width shade is unilateral equal to the height of abnormal point to subtract 0.15 meter；
S3.3: the position for thering is the characteristics of differential responses to determine planar disfigurement according to defect of the sound wave sound width to different zones.
5. a kind of pile foundation inspection method using the velocity of sound and energy definition defective locations according to claim 3, feature
It is, step S4 is specifically included:
S4.1: pipe is carried out by specification to data and is tiltedly corrected；
S4.2: to pipe, tiltedly revised data are normalized；
S4.3: drawing out the velocity of sound sound width solid distribution map of entire foundation pile according to the data after normalized, carries out to figure
Finite element grid processing；
S4.4: finding out abnormal point, and abnormal point is connected, and calculates the size of abnormal area.
6. a kind of pile foundation inspection method using the velocity of sound and energy definition defective locations according to claim 5, feature
It is, step S4.2 is specifically included:
S4.2.1: being normalized acoustic velocity value, specifically includes:
S4.2.11: the average value of tri- vertical plane acoustic velocity values of AB, AC and BC is calculated
In formula: VABIndicate the acoustic velocity value in the face vertical plane AB where A energy converter and B energy converter line, VBCIndicate B energy converter and C
The acoustic velocity value of vertical plane BC where energy converter line, VACIndicate the sound of the vertical plane AC where A energy converter and C energy converter line
Speed value；
S4.2.12: carrying out ratio amendment to three vertical planes respectively, and by taking the face AB as an example, ratio amendment is as follows: first calculating ratio
Example correction factor αAB:Then to the value V of any depth on AB vertical planeABiIt is modified, obtains revised
Depth VABi', correction formula are as follows: VABi'=αABVABi；
S4.2.1: acoustic amplitude is normalized.
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| CN201811041371.9A CN109507293B (en) | 2018-09-07 | 2018-09-07 | Foundation pile imager and method for defining defect position by utilizing sound velocity and energy |
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