CN208636255U - A kind of sound detecting pipe bending velocity of sound correcting device - Google Patents
A kind of sound detecting pipe bending velocity of sound correcting device Download PDFInfo
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- CN208636255U CN208636255U CN201821308399.XU CN201821308399U CN208636255U CN 208636255 U CN208636255 U CN 208636255U CN 201821308399 U CN201821308399 U CN 201821308399U CN 208636255 U CN208636255 U CN 208636255U
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- sound
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- detecting pipe
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Abstract
A kind of sound detecting pipe bending velocity of sound correcting device, the device includes: sonic wave detector and probe, sonic wave detector includes: computer, high pressure transmitting and control module, programming amplifying and attenuation module and A/D conversion and acquisition module, and probe includes: deviation survey equipment, transceiver energy converter, sliding pearl, cable interface, indentation spring.Probe is connect by connecting cable with sonic wave detector, computer deviational survey data according to measured by the deviation survey equipment on probe in sonic wave detector, the true ranging at each survey line of surveyed section can be calculated in conjunction with the inside and outside diameter data of clear distance between two sounding pipe outer walls at stake top and sound detecting pipe, further according to deduct test macro delay, geometrical factor sound when correction value after pile concrete in propagation sound when, the true velocity of sound at each survey line of surveyed section can be calculated.The utility model eliminates the acoustic velocity measutement error due to caused by sound detecting pipe bending, greatly improves the precision of sound wave transmission method detection cast-in-place concrete pile pile quality.
Description
Technical field
The utility model discloses a kind of velocity of sound correcting device, especially a kind of cast-in-place concrete pile sound wave transmission method detection sound
Test tube is bent the modified device of the velocity of sound, belongs to construction project foundation pile pile integrity detection field.
Background technique
Sound wave transmission method detection cast-in-place concrete pile pile body integrity principle be in advance in stake pre-buried several mutually
Parallel sound detecting pipe receives the channel with transmitting transducer as ultrasonic wave, sound wave transmitting is put into detection Shi Yi root canal and is changed
Can device, be put into acoustic receiver energy converter in another root canal, two energy converters Synchronous lifting from bottom to top exists by surveying sound wave
When the sound of pile concrete Propagation, the opposite variation of the parameters,acoustics such as the velocity of sound, frequency and amplitude decay, thus to pile body
Concrete quality is detected.According to two manage in energy converter elevation variation, and can be divided into that flat surveys, oblique side, that sector sweeps survey etc. is square
Formula, generally more common mode are flat survey.
The velocity of sound refers to spread speed of the sound wave in concrete, it is a major parameter in concrete Acoustic detection,
It is closely bound up with the quality, intensity, resilient nature of concrete etc., it is considered that the velocity of sound is lower to illustrate that pile body concrete quality is deposited
It doubts.In test, directly measurement does not obtain the velocity of sound, but according to being calculated when clear distance harmony between sounding pipe outer wall,
Therefore the measuring accuracy of the velocity of sound is depending on the measuring accuracy between sounding pipe outer wall when clear distance harmony.It is complete in filling concrete stake body
In whole property detection, the sounding in entire testing profile at each survey line usually is represented with clear distance between the sounding pipe outer wall at stake top
Clear distance between pipe outer wall, therefore influence of the depth of parallelism of sound detecting pipe to sound velocity test precision is sizable.But actually mixed
It can be easy to generate sound detecting pipe bending, distortion during solidifying soil filling pile construction, thus the phenomenon that generating compared with large deflection, this
In the case of, if representing between the sounding pipe outer wall of the entire profile clear distance using the clear distance between sounding pipe outer wall at stake top also to count
The velocity of sound of each survey line is calculated, it is serious or even influence whether that pile body is mixed then the velocity of sound calculated is there are large error
The judgement of solidifying soil property amount.
Summary of the invention
Sound velocity determination the shortcomings that there are large errors, this reality when for sound detecting pipe in the prior art bending mentioned above
A kind of sound detecting pipe bending velocity of sound correcting device is provided with novel, uses the probe and sonic wave detector structure of special designing,
Using the set-up mode of energy converter combination deviation survey equipment, the acoustic velocity measutement error due to caused by sound detecting pipe bending can be rejected, from
And greatly improve the precision of sound wave transmission method detection cast-in-place concrete pile pile quality.
The utility model solve its technical problem the technical solution adopted is that: a kind of sound detecting pipe is bent velocity of sound correcting device,
The device includes sonic wave detector and probe, and probe is connect by connecting cable with sonic wave detector, and sonic wave detector includes meter
Calculation machine, high pressure transmitting and control module, programming amplifying and attenuation module and A/D conversion and acquisition module, high pressure transmitting and control
Molding block is connect with computer, one probe by connecting cable and high pressure transmitting is connect with control module, programming amplifying with decline
Subtracting module by connecting cable and another probe connection, programming amplifying is connect with attenuation module and A/D conversion with acquisition module,
A/D conversion is connect on computers with acquisition module, and probe includes deviation survey equipment and transceiver energy converter, deviation survey equipment and receipts
Integrated energy converter is sent out to be fixedly mounted in probe body.
Sliding pearl is installed, sliding pearl has part to be exposed on the outside of probe body, installation in probe body in the probe body
There is indentation spring, sliding pearl corresponds to indentation spring setting.
The technical solution that the utility model solves the use of its technical problem further comprises:
The cunning pearl and indentation spring is each provided with one group above and below probe body.
Every group includes four sliding pearls, and four sliding pearls are uniformly distributed in probe body surrounding.
The connecting cable is equipped with sounding mark.
The cable interface for connecting with connecting cable is provided in the probe body.
The probe outer diameter is 30~35mm, and length is about 200~250mm.
The deviation survey equipment is using accurate gravitational equilibrium servo obliquity sensor.
The transceiver energy converter uses the radial transducer of circular ring type piezoelectric ceramic piece production, radially vibrates nothing
Directive property, resonance frequency are 30kHz~60kHz.
The beneficial effects of the utility model are: the utility model is strictly in sounding by the cunning pearl control probe on probe
Tube hub position accurately measures the deviational survey data of sounding tube hub by the deviation survey equipment on probe, will be surveyed by connecting cable
Oblique data are transmitted to the computer in sonic wave detector, obtain the spatial distribution curve of sounding tube hub, and computer is according to being surveyed
The spatial distribution curve of two sounding tube hubs of section is incorporated in clear distance between two sounding pipe outer walls being accurately measured at stake top
And two sound detecting pipe inside and outside diameter data, establish the threedimensional model of surveyed section.In the detection process, computer is according to two
Depth locating for popping one's head in, can automatically extract out the ranging from each survey line, further according to deduction from the threedimensional model of surveyed section
Test macro delay, geometrical factor sound when correction value after pile concrete in propagation sound when, can be calculated to survey and cut open
The true velocity of sound at each survey line in face.The utility model eliminates the acoustic velocity measutement error due to caused by sound detecting pipe bending, from
And greatly improve the precision of sound wave transmission method detection cast-in-place concrete pile pile quality.
The utility model is described further below in conjunction with the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is that a kind of sound detecting pipe of the utility model is bent the schematic diagram of velocity of sound correcting device；
Fig. 2 is the structural schematic diagram of sonic wave detector in the utility model；
Fig. 3 is the positive structure schematic popped one's head in the utility model；
Fig. 4 is the overlooking structure diagram popped one's head in the utility model；
Fig. 5 is that a kind of sound detecting pipe of the utility model is bent the flow chart of velocity of sound correcting device application method.
Wherein, 1, sonic wave detector；2, it pops one's head in；3, connecting cable；11, computer；12, high pressure transmitting and control module；
13, programming amplifying and attenuation module；14, A/D conversion and acquisition module；21, deviation survey equipment；22, transceiver energy converter；23,
Sliding pearl；24, cable interface；25, it is pressed into spring.
Specific embodiment
The present embodiment is the preferred embodiments of the present invention, other its all principles and basic structure are identical as the present embodiment
Or it is approximate, within scope of protection of the utility model.
Attached drawing 1 is please referred to, it mainly includes sonic detection that the utility model, which is that a kind of sound detecting pipe is bent velocity of sound correcting device,
Instrument 1 and probe 2, probe 2 is connect by connecting cable 3 with sonic wave detector 1, and in the present embodiment, connecting cable 3 is equipped with depth
It marks (being not drawn into figure), the depth of 2 positions of probe can be apparent from by sounding mark.Please refer to attached drawing 2, this reality
Apply in example, sonic wave detector 1 include computer 11, high pressure transmitting with control module 12, programming amplifying and attenuation module 13 and
A/D conversion and acquisition module 14, high pressure transmitting are connect with control module 12 with computer 11, and a probe 2 passes through connecting cable 3
Emit with high pressure and connect with control module 12, programming amplifying and attenuation module 13 are connected by connecting cable 3 and another probe 2
It connects, programming amplifying is connect with attenuation module 13 and A/D conversion with acquisition module 14, and A/D conversion is connected to meter with acquisition module 14
On calculation machine 11.Please refer to attached drawing 3, in the present embodiment, probe 2 include deviation survey equipment 21, transceiver energy converter 22, sliding pearl 23,
Cable interface 24, indentation spring 25, deviation survey equipment 21 and transceiver energy converter 22 are fixedly mounted in 2 main bodys of probe, sliding pearl
23 are mounted in 2 main bodys of probe, and have part to be exposed on the outside of 2 main bodys of probe, and indentation spring 25 is mounted in 2 main bodys of probe, sliding
Pearl 23 corresponds to indentation spring 25 and is arranged, and in the present embodiment, sliding pearl 23 and indentation spring 25 are each provided with above and below 2 main bodys of popping one's head in
One group, every group includes four sliding pearls 23, and four sliding pearls 23 are uniformly distributed in 2 main body surroundings of popping one's head in.Sliding pearl 23 passes through indentation spring
25 can be with free extension and rolling, and sliding pearl 23 is close to sounding inside pipe wall in the extended state.Cable is provided in 2 main bodys of popping one's head in connect
Mouth 24, for being connect with connecting cable 3.
Computer 11 controls high pressure transmitting and control module 12, generates controlled high-voltage pulse by connecting cable 3 and motivates certain
Transceiver energy converter 22 in one sound detecting pipe on probe 2, after electroacoustic is converted to ultrasonic pulse, passes sequentially through in sound detecting pipe
Couplant (water) and sound detecting pipe wall are passed to pile concrete, and the transceiver energy converter 22 on probe 2 in another sound detecting pipe connects
The signal is reconverted into after receiving the ultrasonic signal for sequentially passing through concrete, couplant (water) in sounding tube wall harmony test tube
Electric signal is transmitted to programming amplifying and attenuation module 13 in sonic wave detector 1 through connecting cable 3, and carries out to the electric signal
After adjust automatically, then it is delivered to A/D conversion and acquisition module 14, A/D conversion is with acquisition module 14 by the digital signal after conversion
Test value when being calculated sound is transmitted to after computer 11 again, correction value (sound when deducting test macro delay, geometrical factor sound
The delay when sound that wave generates in sounding tube wall and couplant) after, when obtaining the propagation sound that survey line is in concrete medium.
Two probes 2 during being transferred respectively to two sounding bottom of the tube, be close on the inside of sound detecting pipe by the cunning pearl 23 of surrounding
Wall, and the effect of the elastic force due to indentation spring 25 can be transferred smoothly so that sliding pearl 23 will not be stuck on sound detecting pipe inner sidewall
To sound detecting pipe, the sliding control of pearl 23 probe 2 is strictly in sound detecting pipe center, and the deviation survey equipment 21 on two probes 2 can divide
Not Huo get two sounding tube hubs deviational survey data, deviational survey data are transmitted to respectively by computer 11 by connecting cable 3, thus
The spatial distribution curve of two sounding tube hubs is obtained, computer 11 is incorporated between two sounding pipe outer walls being accurately measured at stake top
The inside and outside diameter data of clear distance and two sound detecting pipes, can establish the threedimensional model of surveyed section, examine further according to two probes 2
Locating depth during surveying, so as to accurately obtain ranging of the surveyed section at each survey line.Computer 11 is according to institute
It is every so as to which surveyed section is calculated when surveying the ranging at each survey line of section and propagation sound in pile concrete
The true velocity of sound at one survey line.
In the present embodiment, sonic wave detector 1 is with the following functions:
1) real-time display and record receive signal time-history curves and frequency measurement or spectrum analysis；
2) minimal sampling time interval is less than or equal to 0.5 μ s, and band system band width is 1kHz~200kHz, and magnitudes of acoustic waves is surveyed
Relative error is measured less than 5%, system maximum dynamic range is not less than 100dB；
3) sound wave transmitting pulse is step or rectangular pulse, and voltage magnitude is 200V~1000V；
4) Mintrop wave real-time display；
5) it automatically records sound wave transmitting and receives transducer position.
In the present embodiment, 2 outer diameters of probe are preferably from about 30~35mm(about 10~20mm smaller than sounding bore), length is about
For 200~250mm, it is impermeable that watertightness meets 1MPa hydraulic pressure.
In the present embodiment, deviation survey equipment 21, can 360 ° omni-directional preferably using accurate gravitational equilibrium servo obliquity sensor
Inclination measurement, measurement accuracy are better than 0.05 °.
In the present embodiment, the radial transducer that transceiver energy converter 22 is made of circular ring type piezoelectric ceramic piece, along diameter
To vibration non-directive, resonance frequency is 30kHz~60kHz.In the present embodiment, transceiver energy converter 22 has transmitting and connects
Two kinds of operating modes are received, two kinds of operating modes of transmitting and reception of same transceiver energy converter 22 cannot occur simultaneously, specifically
When implementation, transmitting transducer can also be used with the energy converter in a probe 2, the energy converter in another probe 2 is using reception
Energy converter.
The application method of the utility model please refers to attached drawing 5, and this method mainly comprises the steps that
S1, the acquisition of deviational survey data: by two probes 2, slowly decentralization to two sounding bottom of the tube, sliding pearl 23 are controlled respectively respectively
It makes deviation survey equipment 21 of two probes 2 strictly on two sound detecting pipe centers, two probes 2 and obtains two soundings respectively
Deviational survey data are transmitted to computer 11 respectively by connecting cable 3 by the deviational survey data of tube hub, obtain two according to deviational survey data
The spatial distribution curve of root sounding tube hub；
S2, surveyed section threedimensional model: clear distance between two sounding pipe outer walls at accurate measurement stake top, input sound wave inspection are established
Instrument 1 is surveyed, the computer 11 in sonic wave detector 1 combines the inside and outside diameter data of two sound detecting pipes inputted and obtained by step S1
Two obtained sound detecting pipe central space distribution curves establish the threedimensional model of surveyed section.Due to the orifice position of sound detecting pipe
It is fixed, it can be obtained from aperture decentralization 360 ° omni-directional inclinometer according to the real-time tilt angle of inclinometer and locating depth
The general shape of sound detecting pipe central axes, i.e. sound detecting pipe central space distribution curve are distributed according to the central space of two sound detecting pipes
Curve can establish section model in conjunction with the distance of two sound detecting pipes at stake top；
S3, sound transit-time measurement: during at the uniform velocity promoting two probes 2 in two sound detecting pipes at the same time, computer 11 is controlled
High pressure transmitting processed and control module 12, generate controlled high-voltage pulse and are motivated in a certain sound detecting pipe on probe 2 by connecting cable 3
The transceiver energy converter 22 after converting electrical energy into ultrasonic pulse, passes sequentially through couplant (water) harmony in sound detecting pipe
Test tube wall is passed to pile concrete, the transceiver energy converter 22 on probe 2 in another sound detecting pipe receive sequentially pass through it is mixed
The signal is reconverted into electric signal after the ultrasonic signal of solidifying native, in sounding tube wall harmony test tube couplant (water), through connecting
The programming amplifying and attenuation module 13 that cable 3 is transmitted in sonic wave detector 1 are automatically adjusted (the present embodiment to the electric signal
In, the electric signal is automatically adjusted using programming amplifying and attenuation module 13 and belongs to computer system knowledge, in computer
System is well known content, and is also widely used in existing sonic wave detector, in the present embodiment, using conventional means to electricity
Signal is automatically adjusted) after, it is delivered to A/D conversion and acquisition module 14, A/D conversion is with acquisition module 14 by the number after conversion
Word signal is transmitted to after computer 11 test value when sound can be calculated again, repairs when deducting test macro delay, geometrical factor sound
After positive value (the delay when sound that sound wave generates in sounding tube wall and couplant), the propagation that survey line is in concrete medium is obtained
When sound, in the present embodiment, (sound wave is in sounding tube wall for correction value when test value deducts test macro delay, geometrical factor sound when sound
With generated in couplant sound when delay) after, when obtaining the propagation sound that survey line is in concrete medium, it may be assumed that sound velocity test value-
When the propagation sound of correction value when system delay-geometrical factor sound=in concrete medium；
S4, the velocity of sound calculate: during at the uniform velocity promoting two probes 2 in two sound detecting pipes at the same time, 11, computer
According to depth locating for step S2 the surveyed section threedimensional model established and two probes 2, surveyed section is extracted in each survey
Ranging at line, when the propagation sound being in conjunction with surveyed survey line in pile concrete, so that each survey of surveyed section be calculated
The true velocity of sound at line, in the present embodiment, distance is speed divided by the time, just obtains the velocity of sound when ranging is divided by sound.
In conclusion the utility model provides a kind of sound detecting pipe bending velocity of sound correcting device and the user of the device
Method is strictly in sound detecting pipe center by the cunning pearl control probe on probe, is accurately surveyed by the deviation survey equipment on probe
Deviational survey data are transmitted to the computer in sonic wave detector by connecting cable by the deviational survey data for obtaining sounding tube hub, are obtained
The spatial distribution curve of sounding tube hub, spatial distribution curve of the computer according to two sounding tube hubs of surveyed section, knot
The inside and outside diameter data of clear distance and two sound detecting pipes between the two sounding pipe outer walls that conjunction is accurately measured at stake top, foundation, which is surveyed, to be cutd open
The threedimensional model in face.In the detection process, computer, can be from the threedimensional model of surveyed section according to two locating depth of popping one's head in
In automatically extract out ranging at each survey line, further according to the stake after correction value when deducting test macro delay, geometrical factor sound
When propagation sound in body concrete, the true velocity of sound at each survey line of surveyed section can be calculated.The utility model is rejected
Due to the acoustic velocity measutement error that sound detecting pipe bending is caused, so that greatly improving sound wave transmission method detects filling concrete
The precision of stake body quality.
The above, the only preferred embodiment of the utility model, are not intended to limit the protection of the utility model
Range, all various modifications carried out according to the principles of the present invention all should be understood as falling into the protection model of the utility model
It encloses.
Claims (9)
1. a kind of sound detecting pipe is bent velocity of sound correcting device, it is characterized in that: the device includes sonic wave detector and probe, probe
It is connect by connecting cable with sonic wave detector, sonic wave detector includes computer, high pressure transmitting and control module, programming amplifying
With attenuation module and A/D conversion and acquisition module, high pressure transmitting is connect with control module with computer, and a probe passes through company
It connects cable and high pressure transmitting is connect with control module, programming amplifying and attenuation module are connected by connecting cable and another probe
It connecing, programming amplifying is connect with attenuation module and A/D conversion with acquisition module, and A/D conversion is connect on computers with acquisition module,
Probe includes deviation survey equipment and transceiver energy converter, and deviation survey equipment and transceiver energy converter are fixedly mounted on probe body
On.
2. sound detecting pipe according to claim 1 is bent velocity of sound correcting device, it is characterized in that: installing in the probe body
There is sliding pearl, sliding pearl has part to be exposed on the outside of probe body, and indentation spring is equipped in probe body, and sliding pearl corresponds to indentation spring
Setting.
3. sound detecting pipe according to claim 2 is bent velocity of sound correcting device, it is characterized in that: the cunning pearl and indentation spring
One group is each provided with above and below probe body.
4. sound detecting pipe according to claim 3 is bent velocity of sound correcting device, it is characterized in that: every group includes four sliding pearls, four
A sliding pearl is uniformly distributed in probe body surrounding.
5. sound detecting pipe according to claim 1 is bent velocity of sound correcting device, it is characterized in that: the connecting cable is equipped with
Sounding mark.
6. sound detecting pipe according to claim 1 is bent velocity of sound correcting device, it is characterized in that: being arranged in the probe body
There is the cable interface for connecting with connecting cable.
7. sound detecting pipe according to claim 1 is bent velocity of sound correcting device, it is characterized in that: the probe outer diameter be 30~
35mm, length are 200~250mm.
8. sound detecting pipe according to claim 1 is bent velocity of sound correcting device, it is characterized in that: the deviation survey equipment is using essence
Close gravitational equilibrium servo obliquity sensor.
9. sound detecting pipe according to claim 1 is bent velocity of sound correcting device, it is characterized in that: the transceiver energy converter
The radial transducer made of circular ring type piezoelectric ceramic piece, radially vibrates non-directive, resonance frequency be 30kHz~
60kHz。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821308399.XU CN208636255U (en) | 2018-08-14 | 2018-08-14 | A kind of sound detecting pipe bending velocity of sound correcting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821308399.XU CN208636255U (en) | 2018-08-14 | 2018-08-14 | A kind of sound detecting pipe bending velocity of sound correcting device |
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| Publication Number | Publication Date |
|---|---|
| CN208636255U true CN208636255U (en) | 2019-03-22 |
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ID=65741623
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|---|---|---|---|
| CN201821308399.XU Expired - Fee Related CN208636255U (en) | 2018-08-14 | 2018-08-14 | A kind of sound detecting pipe bending velocity of sound correcting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802189A (en) * | 2018-08-14 | 2018-11-13 | 中冶建筑研究总院（深圳）有限公司 | A kind of sound detecting pipe bending velocity of sound correcting device and method |
-
2018
- 2018-08-14 CN CN201821308399.XU patent/CN208636255U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802189A (en) * | 2018-08-14 | 2018-11-13 | 中冶建筑研究总院（深圳）有限公司 | A kind of sound detecting pipe bending velocity of sound correcting device and method |
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