CN207036086U - The unidirectional strain detection testing device of the soil body - Google Patents
The unidirectional strain detection testing device of the soil body Download PDFInfo
- Publication number
- CN207036086U CN207036086U CN201720309206.1U CN201720309206U CN207036086U CN 207036086 U CN207036086 U CN 207036086U CN 201720309206 U CN201720309206 U CN 201720309206U CN 207036086 U CN207036086 U CN 207036086U
- Authority
- CN
- China
- Prior art keywords
- soil body
- rigid pipe
- testing device
- strain detection
- detection testing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a kind of unidirectional strain detection testing device of the soil body, the unidirectional strain detection testing device of the soil body is embedded in inside soil body, and it is connected with data collecting system, the device includes rigid pipe, elastomeric bladder, inductor, filling liquid, data wire, sealing ring, fluid sealant, stopple, wherein rigid pipe side wall is provided with circular port and topping up hole, and rigid pipe both ends outer wall is provided with seal groove；Circular port of the inductor test lead through rigid pipe side wall is inserted into rigid pipe；Elastomeric bladder is arranged on rigid pipe seal groove with sealing ring；Filling liquid is filled with inside rigid pipe from topping up hole and sealed topping up hole with stopple；It is with fluid sealant that the gap filling on rigid pipe is closely knit；The data wire that inductor connects is connected with data collecting system, that is, forms the unidirectional strain detection testing device of the soil body.The utility model can obtain the dependent variable in the soil body certain direction under outer load action, and the device is provided convenience for the mechanics and deformation characteristic of the understanding soil body.
Description
Technical field
The utility model belongs to Geotechnical Engineering field, is related to a kind of unidirectional strain detection testing device of soil body, for phase in the soil body
Test to dependent variable.
Background technology
Under external force, its geometry and size will change, and this deformation claims for continuity or porous material
For strain.The change mechanism of research soil body strain plays an important roll for the intensity and deformation characteristic for recognizing the soil body.
The soil body has the material properties different from metal, and its surface for straining can not be simply according to the soil body changes to solve
Release.Because the pressure of the soil body is rigid, feature, the actual strain of the soil body such as non-linear can not directly calculate acquisition.Due to the soil body it is granular,
The characteristics such as omnidirectional rigidity, the strain in the soil body can not be tested directly.The patent No. 2014107401402 is disclosed for testing soil
The test device of internal portion three dimensional strain state, but soil body strain testing needs enough material similarities, the patent is not
Substance points out framework material type, and the patent is not used to the soil body strain testing of certain fixed-direction.
For strain, intensity and the deformation characteristic of the elastic performance of Validity Test various soil mass, rationally the assessment soil body, it is necessary to
Strain to the soil body is tested.
The content of the invention
The purpose of this utility model is to provide a kind of unidirectional strain detection testing device of soil body, to realize the strain testing of the soil body,
The unidirectional strain detection testing device of the soil body is in units of the strain of other media, establishes soil body strain and medium strain stress relation, so as to
Obtain its strain.
To solve the above problems, the utility model provides a kind of unidirectional strain detection testing device of the soil body, the soil body unidirectionally strains
Test device is embedded in inside soil body, and is connected with data collecting system, wherein：The device includes rigid pipe, elastomeric bladder, sense
Depressor, filling liquid, data wire, sealing ring, fluid sealant, stopple；The rigid pipe side wall is provided with circular port and topping up hole, rigidity
Pipe both ends outer wall is provided with seal groove, and the inductor test lead is inserted in the circular port of rigid pipe side wall, and inductor is connected with
Data wire is simultaneously connected with data collecting system；Elastomeric bladder is located on rigid pipe seal groove by sealing ring, the filling liquid
It is filled in through topping up hole inside rigid pipe, Packed stopple is set in topping up hole, the gap filling between rigid pipe and elastomeric bladder
There is fluid sealant, that is, form the unidirectional strain detection testing device of the soil body.
The utility model effect is can to obtain the dependent variable in the soil body certain direction under outer load action, has broken soil body list
The limitation that can not be directly tested to strain.After tested, the unidirectional strain detection testing device of the same soil body is demarcated relative through repeated loading
Strain value error is less than 1%.The raising of precision can not only solve the problem of the unidirectional strain testing of the soil body, also the intensity for the soil body and
Study on Deformation provides guarantee.
Brief description of the drawings
Fig. 1 is the unidirectional strain detection testing device profile of the soil body of the present utility model；
Fig. 2 is the rigid pipe design sketch that the utility model is related to.
In figure：
1. the sealing ring of 5. data wire of rigid pipe 2. elastomeric bladder, 3. inductor, 4. filling liquid 6.
7. the seal groove of 12. topping up hole of fluid sealant 8. stopple, 11. circular port 13.
Embodiment
The unidirectional strain detection testing device of the soil body of the present utility model is illustrated with reference to accompanying drawing.
The unidirectional strain detection testing device of the soil body of the present utility model is based on：It is continuous with outer load change by using liquid pressure
The principle of change, with reference to the relation between soil body strain and medium strain, it is proposed that the unidirectional strain detection testing device of the soil body.
The unidirectional strain detection testing device structure of the soil body of the present utility model is that the unidirectional strain detection testing device of the soil body is embedded in soil
Internal portion, and be connected with data collecting system, the device includes rigid pipe 1, elastomeric bladder 2, inductor 3, filling liquid 4, data
Line 5, sealing ring 6, fluid sealant 7, stopple 8, as shown in Figure 1.The wherein side wall of rigid pipe 1 is provided with circular port 11 and topping up hole 12,
The both ends outer wall of rigid pipe 1 is provided with seal groove 13, as shown in Figure 2.By circular port 11 of the test lead of inductor 3 through rigid pipe side wall
Insert rigid pipe 1；Elastomeric bladder 2 is arranged on rigid pipe seal groove 13 with sealing ring 6；Filling liquid 4 is filled with from topping up hole 12
Inside rigid pipe 1, and topping up hole 12 is sealed with stopple 8；The gap between rigid pipe and elastomeric bladder 2 is filled out by fluid sealant 7
Fill closely knit；The data wire 5 that inductor 3 connects is connected with data collecting system, that is, forms the unidirectional strain testing dress of the soil body
Put.
Using the unidirectional strain detection testing device of the soil body of the utility model tested, improve accuracy of detection, for soil
The intensity and Study on Deformation of body provide guarantee.
It the foregoing is only and illustrated with reference to this manufacturing process, for the practical application of this area, this practicality
It is new to have various change and change.All modifications within the spirit and principles of the utility model, made, equivalent substitution,
Improve etc., it should be included within the scope of protection of the utility model.
Claims (1)
1. a kind of unidirectional strain detection testing device of the soil body, the unidirectional strain detection testing device of the soil body are embedded in inside soil body, and and data
Acquisition system is connected, it is characterized in that：The device includes rigid pipe (1), elastomeric bladder (2), inductor (3), filling liquid (4), number
According to line (5), sealing ring (6), fluid sealant (7), stopple (8)；Rigid pipe (1) side wall is provided with circular port (11) and topping up hole
(12), rigid pipe (1) both ends outer wall is provided with seal groove (13), described inductor (3) test lead insertion rigid pipe (1) side wall
In circular port (11), inductor (3) is connected with data wire (5) and is connected with data collecting system；By sealing ring (6) by bullet
Property capsule (2) be located on rigid pipe seal groove (13), it is internal that the filling liquid (4) through topping up hole (12) is filled in rigid pipe (1), fills
Packed stopple (8) is set in fluid apertures (12), the gap filling between rigid pipe (1) and elastomeric bladder (2) has fluid sealant (7), i.e.,
Form the unidirectional strain detection testing device of the soil body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720309206.1U CN207036086U (en) | 2017-03-28 | 2017-03-28 | The unidirectional strain detection testing device of the soil body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720309206.1U CN207036086U (en) | 2017-03-28 | 2017-03-28 | The unidirectional strain detection testing device of the soil body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207036086U true CN207036086U (en) | 2018-02-23 |
Family
ID=61472963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720309206.1U Expired - Fee Related CN207036086U (en) | 2017-03-28 | 2017-03-28 | The unidirectional strain detection testing device of the soil body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207036086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767669A (en) * | 2017-03-28 | 2017-05-31 | 天津城建大学 | The unidirectional strain detection testing device of the soil body and its method of testing |
-
2017
- 2017-03-28 CN CN201720309206.1U patent/CN207036086U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767669A (en) * | 2017-03-28 | 2017-05-31 | 天津城建大学 | The unidirectional strain detection testing device of the soil body and its method of testing |
| CN106767669B (en) * | 2017-03-28 | 2022-11-29 | 天津城建大学 | Soil body unidirectional strain testing device and testing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 Termination date: 20210328 |