CN201348496Y - Device for testing deformation of reinforced band - Google Patents
Device for testing deformation of reinforced band Download PDFInfo
- Publication number
- CN201348496Y CN201348496Y CNU2009200384326U CN200920038432U CN201348496Y CN 201348496 Y CN201348496 Y CN 201348496Y CN U2009200384326 U CNU2009200384326 U CN U2009200384326U CN 200920038432 U CN200920038432 U CN 200920038432U CN 201348496 Y CN201348496 Y CN 201348496Y
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- CN
- China
- Prior art keywords
- sensitive element
- reinforced
- groove
- reinforced band
- band
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- 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 - Lifetime
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Abstract
A device for testing the deformation of a reinforced band utilizes the piezoresistive effect of conductive rubber-based composite materials to have a test on the reinforced band. The device comprises a groove casing, a groove flexible body internally attached to the groove casing, a sensitive element embedded inside the groove flexible body, copper electrodes respectively arranged at two ends of the sensitive element, a data testing line connected with the tail part of each copper electrode, and a bottom plate arranged at and fixed with the bottom of the groove casing. The groove casing is connected with the bottom plate to internally wrap the reinforced band and allow the only deformation of the reinforced band in the length direction, and the lower surface of the sensitive element can be fixedly bonded with the upper surface of the reinforced band and is in the synchronous deformation with the upper surface of the reinforce band, so that the strain value of the reinforced band can be obtained by testing the resistance variation value of the sensitive element. The device solves the problem that the reinforced band in tension generates the large deformation, and has the advantages of simple structure, easy manufacture, convenient installation, precise and stable data measurement, reliable performance, good effect, and widespread practicality.
Description
Technical field:
The utility model relates to a kind of reinforced belt deformation proving installation, is particularly useful for the large deformation test of the reinforced bands in reinforced earth bed course and the reinforced earth retaining wall.
Background technology:
Use geotextile at present in engineering constructions such as highway, railway, water conservancy, China Democratic National Construction Association, purpose is to change soil body performance, and the Stabilized Soil body structure guarantees and the raising structural quality.Reinforced bands is widely used in reinforced earth bed course and the reinforced earth retaining wall engineering as the lacing wire material.Employed reinforced bands can be divided into two big classes in the at present domestic and international Reinforced Material with Clay Engineering: a class is a rigidity muscle band, and as stainless steel band steel band, zinc-coated flat steel sheet band etc., its intensity is big, extends little; Another kind of is flexible muscle band, i.e. PP geotechnique band, the compound muscle band of glass fibre, the compound muscle band of steel wire, the composite reinforced band of highstrenghtpiston etc., and this product cost is low, is widely used, and is most important to the Stabilized Soil body structure.The strained situation of grasping reinforced bands has great significance to construction reinforced earth bed course and reinforced earth retaining wall engineering, but because the reinforced bands range of strain is big, goes back the device that neither one is relatively effectively tested reinforced belt deformation so far.
Summary of the invention:
The purpose of this utility model is at the problem that exists in the prior art, provides a kind of simple in structure, and making is easier to, and installs simple and conveniently, and test data is precise and stable, the reinforced belt deformation proving installation of dependable performance.
Reinforced belt deformation proving installation of the present utility model, comprise the groove shell, be provided with the groove flexible body in the groove shell, the groove flexible body is embedded with sensitive element, the two ends of sensitive element respectively are provided with a copper electrode, the afterbody of copper electrode is connected with the data test line, and an end of groove shell is provided with the wire guide of derived data p-wire; The bottom of groove shell is provided with the base plate that fixes with it, leaves the gap of cutting ferrule reinforced bands between base plate and the sensitive element.
Described sensitive element is made by conductive rubber composite material; Described groove shell and base plate are made by metal or rigid plastic; Described flexible body is made by rubber or compounded rubber.
Reinforced belt deformation proving installation of the present utility model is applicable to the large deformation test of the reinforced bands in reinforced earth bed course and the reinforced earth retaining wall.The piezoresistive effect that utilizes conductive rubber composite material to reinforced bands strain test, promptly when conductive rubber composite material was subjected to external force deformation, its resistance also produced respective change thereupon.In this measurement mechanism, sensitive element is by conductive rubber composite material machine-shaping, it in the large deformation scope its resistance value and the distortion between have good particular kind of relationship, when carrying out the reinforced bands strain testing, sensitive element and reinforced bands deform in same pace, sensitive element also produces the variation of being out of shape and causing its resistance value thereupon when reinforced bands is subjected to pulling force generation distortion, calculate the reinforced bands strain value by measuring this increased resistance value, solved the reinforced bands tension and produced the test problem of large deformation, it is simple in structure, easily make, easy for installation, test data is precise and stable, dependable performance, effective, have practicality widely.
Description of drawings:
Fig. 1 is a structure cut-open view of the present utility model;
Fig. 2 is the A-A cut-open view of Fig. 1.
Among the figure: groove shell-1, groove flexible body-2, sensitive element-3, base plate-4, reinforced bands-5, copper electrode-6, data test line-7, wire guide-8.
Embodiment:
The utility model will be further described below in conjunction with embodiment in the accompanying drawing:
Shown in Figure 1, reinforced belt deformation proving installation of the present utility model comprises groove shell 1, is attached with the groove flexible body 2 that is directly molded on its inside grooves in the groove shell 1, and flexible body 2 is made by rubber or compounded rubber.Groove flexible body 2 is embedded with the sensitive element of being made by conductive rubber composite material 3, the two ends of sensitive element 3 respectively are provided with a copper electrode 6, the afterbody of two copper electrodes 6 is connected with data test line 7, data test line 7 is derived in the wire guide 8 that groove shell 1 one ends are provided with, be connected with tester, shown in Figure 2.There is base plate 4 bottom of groove shell 1 by bolt, and groove shell 1 can be made of metal with base plate 4, also can be made by rigid plastic, can protect the sensitive element 3 of inside, prevents that sensitive element 3 is subjected to other pressure from the outside.Leave the gap of cutting ferrule reinforced bands 5 between base plate 4 and the sensitive element 3; Groove flexible body 2 is the rubber-like flexible material, mainly plays the effect to sensitive element 3 buffer protections.
Claims (4)
1. reinforced belt deformation proving installation, it is characterized in that: it comprises groove shell (1), be provided with groove flexible body (2) in the groove shell (1), groove flexible body (2) is embedded with sensitive element (3), the two ends of sensitive element (3) respectively are provided with a copper electrode (6), the afterbody of copper electrode (6) is connected with data test line (7), and an end of groove shell (1) is provided with the wire guide (8) of derived data p-wire (7); The bottom of groove shell (1) is provided with the base plate (4) that fixes with it, leaves the gap of cutting ferrule reinforced bands (5) between base plate (4) and the sensitive element (3).
2. reinforced belt deformation proving installation according to claim 1 is characterized in that: described sensitive element (3) is made by conductive rubber composite material.
3. reinforced belt deformation proving installation according to claim 1 is characterized in that: groove shell (1) is made by metal or rigid plastic with base plate (4).
4. reinforced belt deformation proving installation according to claim 1 is characterized in that: described flexible body (2) is made by rubber or compounded rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200384326U CN201348496Y (en) | 2009-01-19 | 2009-01-19 | Device for testing deformation of reinforced band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200384326U CN201348496Y (en) | 2009-01-19 | 2009-01-19 | Device for testing deformation of reinforced band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348496Y true CN201348496Y (en) | 2009-11-18 |
Family
ID=41367962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200384326U Expired - Lifetime CN201348496Y (en) | 2009-01-19 | 2009-01-19 | Device for testing deformation of reinforced band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348496Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288101A (en) * | 2011-08-02 | 2011-12-21 | 中国矿业大学 | Bending deformation test sensor |
-
2009
- 2009-01-19 CN CNU2009200384326U patent/CN201348496Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288101A (en) * | 2011-08-02 | 2011-12-21 | 中国矿业大学 | Bending deformation test sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091118 Effective date of abandoning: 20090119 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20091118 Effective date of abandoning: 20090119 |