CN207597454U - A kind of separate type pile test strains ring - Google Patents
A kind of separate type pile test strains ring Download PDFInfo
- Publication number
- CN207597454U CN207597454U CN201721439520.8U CN201721439520U CN207597454U CN 207597454 U CN207597454 U CN 207597454U CN 201721439520 U CN201721439520 U CN 201721439520U CN 207597454 U CN207597454 U CN 207597454U
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- Prior art keywords
- ring
- separate type
- electromagnet
- type pile
- pile test
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 238000012545 processing Methods 0.000 claims abstract description 27
- 239000011888 foil Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of separate type pile test strains ring, has the top and lower part being separated from each other in structure；Top includes signal processing apparatus and sequentially connected top connecting portion, ring part and lower end stripes, signal processing apparatus is used to the signal that the strain ring measures being converted to digital signal, there is screw hole on the connecting portion of top, there is foil gauge to acquire signal in ring part, the signal of acquisition is transferred into signal processing apparatus, and lower end stripes can be adsorbed by electromagnet；Lower part includes lower connecting part, has electromagnet, the adjustable screw hole in screw fixed position on lower connecting part, the groove being adapted with the end of lower end stripes is formed on the electromagnet, and the conducting wire that connection is powered to electromagnet is led on electromagnet.The utility model can reduce damage risk of the strain ring in installation and removal, reduce purchase, the replacement cost of strain ring, while can prevent strain ring from being reversed in fastener cycle is installed due to itself and generate prestressing force, make measurement result more accurate.
Description
Technical field
The utility model is related to pile measurement fields, and in particular to a kind of separate type pile test strains ring.
Background technology
With extensive use of the pile foundation in engineering, the implementation of pile measurement is also increasing, and pile measurement method is numerous,
Wherein Large strain method is detected is becoming increasingly popular in engineering in, and the most important instrument of high strain monitoring is integral type
Large strain strains ring, its major function is whether judgement stake vertical compression bearing capacity meets design requirement, and in judgement stake
During the defects of body Horizontal Integration type gap, joint of precast piles, it can find out whether these " defects " influence vertical compression carrying
On the basis of power, defect level is rationally judged, it can be as the supplement verification means of low strain dynamic method.It, should using height in certain areas
Becoming strain ring increases the selective examination frequency of bearing capacity and integrality, it has also become a kind of common practice.However current integral type height should
Becoming strain loop device, there are still certain deficiencies：(1) since the foil gauge that Large strain is strained in ring is on the plastic film of substrate
The sensitive grid made of thin metal foil material is sticked, last layer film is then covered again and makes laminate structure, material is very fragile,
Pile foundation surface disposes and dismounting strain ring is in the process due to straining loop device force unbalance, and foil gauge is easily broken curved or even broken
It is bad；(2) when Large strain strain loop device is in integral type, since device four corners will not be installed simultaneously in fastener cycle is installed
Same degree is fastened on, this can cause itself torsion that can be generated very to the testing result of pile foundation so as to generate certain prestressing force
Big error or even cause engineering accident.
Utility model content
The utility model utility model technical problems to be solved are to strain loop device for existing integral type Large strain
Above shortcomings (1)-(2), provide a kind of separate type pile test strain ring, and ring not sensitive for damages and energy are strained with protection
The prestressing force error during strain detecting is enough reduced, improves accuracy.
The utility model provides a kind of separate type pile test strain ring, has in structure to solve its technical problem
The top and lower part being separated from each other；
Top includes signal processing apparatus and sequentially connected top connecting portion, ring part and lower end stripes；Wherein,
The signal processing apparatus is used to the signal that measures of separate type pile test strain ring being converted to digital signal, it is described on
On portion's connecting portion there is screw hole, there is foil gauge to acquire signal in the ring part, the signal of acquisition is transferred into described
Signal processing apparatus, the lower end stripes can be adsorbed by electromagnet, and the signal processing apparatus is electrically connected with cable, with to
External signal processing apparatus transmits the signal that the separate type pile test strain ring is acquired；
Lower part includes lower connecting part, has the adjustable screw hole in screw fixed position, lower part connection on lower connecting part
In portion also there is electromagnet, the groove being adapted with the end of the lower end stripes, the electromagnet are formed on the electromagnet
On lead to the conducting wire powered to electromagnet of connection.
In the separate type pile test strain ring of the utility model, the inside of top connecting portion has accommodating space, institute
The signal for stating foil gauge sensing is electrically connected to the signal processing apparatus by conducting wire, and the conducting wire passes through the accommodating sky
Between, and in separate type pile test strain ring.
In the separate type pile test strain ring of the utility model, in use, tail end in the lower end stripes into
Enter the groove on the electromagnet to form clearance fit.
In the separate type pile test strain ring of the utility model, electromagnet is built-in sucked type electromagnet, and can be rung
Externally input different size of electric current is answered, generates different magnetic attractions.
In the separate type pile test strain ring of the utility model, the material of lower end stripes is can be attracted by electromagnet
Metal material.
In the separate type pile test strain ring of the utility model, the adjustable screw hole in screw fixed position includes one
Or the strip trepanning in multiple directions.
In the separate type pile test strain ring of the utility model, ring part is made of elastic material.
In the separate type pile test strain ring of the utility model, the tail end of lower end stripes and the groove are ball
Planar, and preferably hemisphere planar.
In the separate type pile test strain ring of the utility model, signal processing device is setting in the connecting portion of top.
Implement the separate type pile test strain ring of the utility model, have the advantages that：Pass through separate type pile foundation
Test strain ring upper installing hole is installed or is dismantled, and can be reduced damage risk of the strain ring in installation and removal, be subtracted
The purchase of strain ring, replacement cost less；Meanwhile the separate type pile test strain ring of the utility model can prevent strain ring from existing
It installs to reverse due to itself in fastener cycle and generates prestressing force, make measurement result more accurate.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is the structure diagram that the utility model embodiment separate type pile test strains ring；
Fig. 2 is the scale diagrams of the separate type pile test strain ring in the utility model Fig. 1.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
As shown in Figure 1, the structure diagram of the utility model embodiment separate type pile test strain ring, separate type pile foundation
Test strain ring includes top 1 and lower part 2, and top 1 and lower part 2 are separated from each other in structure.Top 1 include a cable 11,
Signal processing apparatus 12, top connecting portion 13, screw hole 14, ring part 15 and lower end stripes 16, lower part 2 are connected including lower part
Portion 21, the groove 22 formed on electromagnet 23, leads to connection from electromagnet 23 and is led to what electromagnet 23 was powered electromagnet 23
The adjustable screw hole 25 of line 14 and screw fixed position.
There is accommodating space, signal processing apparatus 12 is located in the space, can be with external signal in top connecting portion 13
Processing unit (such as computer) is communicatively coupled by cable 11, while some other components can be housed in accommodating space.
The signal that separate type pile test strain ring measures is converted to digital signal by signal processing apparatus 12, then passes to outside
Signal processing apparatus carries out the processing of data.Ring part 15 is made with elastic material, internal to use Wheatstone bridge full-bridge
Form is laid with foil gauge, when separate type pile test strain ring it is in running order, 15 stress of ring part generate deformation when, should
Become piece and signal processing apparatus 12 is sent to according to the corresponding signal of deformation degree generation.Foil gauge passes through with signal processing apparatus 12
Conducting wire connects, conducting wire arriving signal processing unit 12 by the accommodating space of top connecting portion 13, therefore can realize that this is led
Line is located inside separate type pile test strain ring.Screw hole 14 is located on top connecting portion 13, and screw passes through above-mentioned screw hole
After 14 are fastened, top can be fixed on to some position.Lower end stripes 16 are all or its end is can be inhaled by electromagnet
Attached material is made, especially metal material, such as iron, copper.
Electromagnet 23 is fixed on lower connecting part 21, and is built in lower connecting part 21, which can be selected
Miniature sucked type electromagnet, two conducting wires 24 are attached with external circuit, and adjusting size of current by external circuit passes through conducting wire 24
To electromagnet 23 so as to adjust magnetic attraction, can adsorb bar-like member (6) when the solenoid is energized prevents it from being detached from for conduction.
Groove 22 is adapted with the end of lower end stripes 16, and the tail end curved surface of lower end bar-like member 16 is hemisphere in the present embodiment
Planar, 22 bottom curved surface of groove are also a hemisphere planar, and the tail end of lower end bar-like member 16 can be just put into groove 22,
Clearance fit is formed between groove 22.There are two the adjustable screw hole 25 in screw fixed position (figures for tool on lower connecting part 21
In only indicate at one) comprising the strip trepanning on one or more direction, screw can this or these in the air along straight
It moves radially, different positions can be selected to be fixed, but the way of realization of the screw hole 25 of the utility model is not limited to
In this.
The size of the single unit system of separate type pile test strain ring is as shown in Figure 2.It is sensed after device is packaged
Device overall length 100mm, wide 30mm, thick 10mm, 12 long 10mm of signal processing apparatus, 13 long 20mm of top connecting portion, outside ring part 15
Diameter 30mm, interior diameter 20mm, 16 long 15mm of lower end stripes, top connecting portion 13, ring part 15 and lower end stripes 16 are total
Long 80mm, 21 long 20mm of lower connecting part, 22 bosom 15mm of groove.
To the method that the separate type pile test strain ring of the utility model is installed, include the following steps：
1) it after installation is complete after foundation pile, determines appropriate position installation strain ring, selected location is handled smooth, worn with screw
The threaded hole that screw hole 14 enters foundation pile surface preboring is crossed, so as to which top 1 is fixed on foundation pile 1；
2) lower part firmware is adjusted by screw, screw is adjusted to appropriate location, then by lower end stripes 16
Being put into groove 22 makes the most deep end of groove 22 be contacted with 16 bottom of lower end stripes, and hemisphere face is just filled, upper and lower two
Divide and just coincide；
3) screw hole 25 is passed through to enter the threaded hole of foundation pile surface preboring with screw, lower part is fixed on foundation pile 1；
4) profit is wired to external circuit, and electromagnet is powered, and the big minor adjustment magnetic attachment of electric current is adjusted by conducting wire
Power is fixed strain ring；
5) packaged cap is covered.
The embodiment of the utility model is described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, above-mentioned specific embodiment is only schematical rather than restricted, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (9)
1. a kind of separate type pile test strains ring, which is characterized in that has the top and lower part being separated from each other in structure；
The top includes signal processing apparatus and sequentially connected top connecting portion, ring part and lower end stripes；Wherein,
The signal processing apparatus is used to the signal that measures of separate type pile test strain ring being converted to digital signal, it is described on
On portion's connecting portion there is screw hole, there is foil gauge to acquire signal in the ring part, the signal of acquisition is transferred into described
Signal processing apparatus, the lower end stripes can be adsorbed by electromagnet, and the signal processing apparatus is electrically connected with cable, with to
External signal processing apparatus transmits the signal that the separate type pile test strain ring is acquired；
The lower part includes lower connecting part, has the adjustable screw hole of electromagnet and screw fixed position on lower connecting part,
The groove being adapted with the end of the lower end stripes is formed on the electromagnet, connection is led on the electromagnet to electromagnetism
The conducting wire of iron power supply.
2. separate type pile test according to claim 1 strains ring, which is characterized in that the inside of the top connecting portion
With accommodating space, the signal of the foil gauge sensing is electrically connected to the signal processing apparatus, the conducting wire by conducting wire
By the accommodating space, and in separate type pile test strain ring.
3. separate type pile test according to claim 1 strains ring, which is characterized in that in use, the lower end strip
The groove that tail end in portion enters on the electromagnet is to form clearance fit.
4. separate type pile test according to claim 1 strains ring, which is characterized in that the electromagnet is built-in sucker
Formula electromagnet, and can response external input different size of electric current, generate different magnetic attractions.
5. separate type pile test according to claim 1 strains ring, which is characterized in that the material of the lower end stripes
For the metal material that can be attracted by electromagnet.
6. separate type pile test according to claim 1 strains ring, which is characterized in that the screw fixed position is adjustable
Screw hole include one or more direction on strip trepanning.
7. separate type pile test according to claim 1 strains ring, which is characterized in that the ring part is elastic material
It is made.
8. separate type pile test according to claim 1 strains ring, which is characterized in that the tail end of the lower end stripes
And the groove is dome shape.
9. separate type pile test according to claim 1 strains ring, which is characterized in that the signal processing device setting in
In the connecting portion of top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721439520.8U CN207597454U (en) | 2017-11-01 | 2017-11-01 | A kind of separate type pile test strains ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721439520.8U CN207597454U (en) | 2017-11-01 | 2017-11-01 | A kind of separate type pile test strains ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207597454U true CN207597454U (en) | 2018-07-10 |
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ID=62757671
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721439520.8U Expired - Fee Related CN207597454U (en) | 2017-11-01 | 2017-11-01 | A kind of separate type pile test strains ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207597454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882077A (en) * | 2017-11-01 | 2018-04-06 | 中国地质大学（武汉） | A kind of separate type pile test strains ring |
-
2017
- 2017-11-01 CN CN201721439520.8U patent/CN207597454U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882077A (en) * | 2017-11-01 | 2018-04-06 | 中国地质大学（武汉） | A kind of separate type pile test strains ring |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180710 |