CN206693283U - A kind of device for having run bridge pile foundation length detection - Google Patents
A kind of device for having run bridge pile foundation length detection Download PDFInfo
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- CN206693283U CN206693283U CN201720402156.1U CN201720402156U CN206693283U CN 206693283 U CN206693283 U CN 206693283U CN 201720402156 U CN201720402156 U CN 201720402156U CN 206693283 U CN206693283 U CN 206693283U
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- pile foundation
- detection
- run
- bridge pile
- receiving transducer
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Abstract
The utility model discloses a kind of device for having run bridge pile foundation length detection, the device is included positioned at two detection holes for having run bridge pile foundation both sides, and the depth of detection hole is more than the basement rock depth run the depth of bridge pile foundation and extended to below pile foundation；Transmitting probe is provided with one of detection hole, is provided with receiving transducer in another detection hole, transmitting probe and receiving transducer are located at identical height；Winch is respectively equipped with the aperture of two detection holes, transmitting probe and receiving transducer are connected with cable one end respectively, and cable is wrapped in the other end on winch and is connected with main frame.The utility model provides important data for the health status that comprehensive, objective, reliable evaluation has run bridge pile foundation, it is ensured that bridge, vehicle and the safety of personnel.
Description
Technical field
A kind of device for having run bridge pile foundation length detection is the utility model is related to, belongs to the detection technique of bridge pile foundation
Field.
Background technology
, need to be to the Bridge Pile that has run if the data loss or with suspicion to the accuracy of raw data after bridge is built up
The review of base length, judge stake base rock with the presence or absence of unfavorable geologic bodies such as karst, the crushed zones for influenceing abutment bearing capacity.Tradition inspection
Peg is long and judges that the low strain dynamic method of integrality is covered by other component things by pile crown and is difficult to carry out, if enterprising in bridge floor
Row boring and coring judges, then influences bridge floor normal vehicle pass-through, and have destruction to bridge floor and stake.
Utility model content
The purpose of this utility model is, there is provided a kind of device for having run bridge pile foundation length detection, to ensure energy dissipating
Step security and efficiency effect, while there is good economy and applicability, so as to overcome the deficiencies in the prior art.
What the technical solution of the utility model was realized in：
A kind of device for having run bridge pile foundation length detection of the present utility model, which is that the device includes being located at, has run bridge
Two detection holes of beam pile foundation both sides, the depth of detection hole are more than the depth for having run bridge pile foundation and extended to below pile foundation
Basement rock depth；Is provided with transmitting probe in one of detection hole, is provided with receiving transducer in another detection hole, transmitting probe with connect
Receive probe and be located at identical height；Be respectively equipped with winch at the aperture of two detection holes, transmitting probe and receiving transducer respectively with electricity
Cable one end connects, and cable is wrapped in the other end on winch and is connected with main frame.
In aforementioned means, the winch at the aperture of two detection holes is the synchronous winch that links.
By adopting the above-described technical solution, the utility model is compared with prior art, the utility model is comprehensive, visitor
See, the health status that reliable evaluation has run bridge pile foundation provides important data, it is ensured that bridge, vehicle and the peace of personnel
Entirely, there is very strong economic value and social value.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure mark for：1- transmitting probes, 2- receiving transducers, 3- detection holes, 4- basement rock, 5- have run bridge pile foundation, 6-
Winch, 7- cables, 8- main frames.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, but not as new to this practicality
Any restrictions of type.
The utility model is according to constructed by a kind of following methods for having run bridge pile foundation length detection, such as Fig. 1
Shown, this method is to have bored a detection hole respectively having run bridge pile foundation both sides, and the depth of detection hole, which is more than, has run bridge
The depth of pile foundation and the basement rock depth extended to below pile foundation；Then transmitting probe is put into by one of detection hole by cable
It is interior, receiving transducer is put into another detection hole by cable, transmitting probe and receiving transducer to be put into depth identical；Each
The aperture of detection hole is equipped with winch, and cable is wrapped on winch, and the cable other end is connected with main frame；Two winch are synchronously transported
OK, to ensure that transmitting probe and receiving transducer are always positioned at sustained height；When confirmation main frame, transmitting probe and receiving transducer work
After normal, allow transmitting probe, receiving transducer synchronously to move down, often move a step-length and carry out a data acquisition and preserve；
Data analysis is carried out by the data collected to each step-length, to realize whether pile foundation length and the following basement rock of pile foundation are deposited
Influenceing the unfavorable geologic bodies such as karst, the crushed zone of abutment bearing capacity；Spacing between two detection holes is 5-10 rice；Step-length
Length is not more than 1 meter；Main frame uses Electromagnetic CT；The object of data analysis is electromagnetic wave attenuation coefficient；When transmitting probe and connect
When receiving probe height in the range of pile foundation, electromagnetic wave attenuation coefficient is between 90-130dB；The object of data analysis is electromagnetic wave
Attenuation coefficient；When transmitting probe and receiving transducer height are in the range of basement rock, electromagnetic wave attenuation coefficient is between 90-60dB；
According to transmitting probe and receiving transducer, the difference of electromagnetic wave attenuation coefficient determines the integrality of basement rock in the range of basement rock.
A kind of device for having run bridge pile foundation length detection of the present utility model formed according to the above method, such as Fig. 1
Shown, the device is included positioned at two detection holes 3 for having run the both sides of bridge pile foundation 5, and the depth of detection hole 3, which is more than, has run bridge
The depth of beam pile foundation 5 and the depth of basement rock 4 extended to below pile foundation；Transmitting probe 1 is provided with one of detection hole 3, it is another
Receiving transducer 2 is provided with individual detection hole 3, transmitting probe 1 and receiving transducer 2 are located at identical height；At the aperture of two detection holes 3
Winch 6 is respectively equipped with, transmitting probe 1 and receiving transducer 2 are connected with the one end of cable 7 respectively, and cable 7 is wrapped in another on winch 6
End is connected with main frame 8；Winch 6 at the aperture of two detection holes 3 is the synchronous winch that links.
Embodiment
This example is as shown in Figure 1.Specific implementation step is as follows：
1）, in the 2 detection drillings 3 of detected two sidetracking of bridge pile foundation, it is ensured that the lines of 2 drillings pass through pile foundation, and 2 are visited
Gaging hole spacing is preferably 5-10m or so；
2）, the transmitting probe 1 of Electromagnetic CT and receiving transducer 2 are individually placed to two 3 apertures of detection drilling, transmitting probe
2 line is connected with winch, and receiving transducer 3 connects with winch, main frame；
3）, main frame and after checking that main frame, transmitting probe 2, receiving transducer 3 are normal, make transmitting probe 2, receiving transducer 3 same
Step moves down, and often moves a step-length（Such as 0.2m, 0.5m or 1.0m）A data acquisition is carried out, and is preserved；
4）, reinforcing bar or shallow earth's surface soil are influenceed in by pile body, in abutment pile body length range, receiving transducer 3 receives
The electromagnetic wave attenuation coefficient arrived is high level（Typically between 90-130dB）；
5）, after transmitting probe 2, receiving transducer 3 enter basement rock, electromagnetic wave attenuation system that its receiving transducer 3 receives
Number is just obviously reduced（Typically between 30-60dB）；
6）If, probe enter complete basement rock after, the electromagnetic wave attenuation coefficient value that receiving transducer 3 receives is basically unchanged or become
Change less, then illustrate that stake bed rock body is complete, if local value uprises, illustrate that stake bottom bottom rock mass has karst or rock crushing etc. no
Good geologic body development.
The utility model is can finding so far, unique, reliably detected to having run bridge pile foundation length
A kind of method and apparatus；The utility model is also can finding so far, unique, reliably to having run bridge pile foundation bottom
A kind of method and apparatus that following Rock Mass Integrality is detected；By the detection of above-mentioned two, it is comprehensive, objective, reliably comments
The health status that valency has run bridge pile foundation provides important data, it is ensured that bridge, vehicle and the safety of personnel, has very strong
Economic value and social value.
Operation principle of the present utility model
The utility model utilizes the reinforcing bar in bridge pile foundation to have very strong attenuation to electromagnetic wave, meanwhile, Bridge Pile
The length of reinforcing bar in base is consistent typically with bridge pile foundation depth, therefore judges standard to the reinforcing bar length in bridge pile foundation,
Also correspond to the length of bridge pile foundation also accuracy of judgement.The utility model detects to bridge pile foundation bottom Rock Mass Integrality
It is different to electromagnetic wave attenuation coefficient from complete basement rock using unfavorable geologic bodies such as karst, crushed zones, when not running into karst, crushed zone
Deng unfavorable geologic body when, electromagnetic wave signal received by receiving transducer 3 is relatively strong and uniformly, if running into karst, crushed zone etc. no
During good geologic body, then the weaker and adjacent point of the electromagnetic wave signal received by receiving transducer 3 changes greatly.
Claims (2)
- A kind of 1. device for having run bridge pile foundation length detection, it is characterised in that：Including positioned at having run bridge pile foundation（5）Two Two detection holes of side（3）, detection hole（3）Depth be more than run bridge pile foundation（5）Depth and extend to below pile foundation Basement rock（4）Depth；One of detection hole（3）It is interior to be provided with transmitting probe（1）, another detection hole（3）Interior be provided with receives spy Head（2）, transmitting probe（1）And receiving transducer（2）Positioned at identical height；Two detection holes（3）Aperture at be respectively equipped with winch （6）, transmitting probe（1）And receiving transducer（2）Respectively with cable（7）One end connects, cable（7）It is wrapped in winch（6）It is upper another End and main frame（8）Connection.
- 2. the device of bridge pile foundation length detection has been run according to claim 1, it is characterised in that：Described two detection holes （3）Aperture at winch（6）For the synchronous winch that links.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720402156.1U CN206693283U (en) | 2017-04-17 | 2017-04-17 | A kind of device for having run bridge pile foundation length detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720402156.1U CN206693283U (en) | 2017-04-17 | 2017-04-17 | A kind of device for having run bridge pile foundation length detection |
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| Publication Number | Publication Date |
|---|---|
| CN206693283U true CN206693283U (en) | 2017-12-01 |
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| CN201720402156.1U Active CN206693283U (en) | 2017-04-17 | 2017-04-17 | A kind of device for having run bridge pile foundation length detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948387A (en) * | 2017-04-17 | 2017-07-14 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of method and device for having run bridge pile foundation length detection |
-
2017
- 2017-04-17 CN CN201720402156.1U patent/CN206693283U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948387A (en) * | 2017-04-17 | 2017-07-14 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of method and device for having run bridge pile foundation length detection |
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