CN101004137A - Resin anchor bar for measuring force - Google Patents
Resin anchor bar for measuring force Download PDFInfo
- Publication number
- CN101004137A CN101004137A CN 200710013232 CN200710013232A CN101004137A CN 101004137 A CN101004137 A CN 101004137A CN 200710013232 CN200710013232 CN 200710013232 CN 200710013232 A CN200710013232 A CN 200710013232A CN 101004137 A CN101004137 A CN 101004137A
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- CN
- China
- Prior art keywords
- resin anchor
- anchor rod
- twisted
- resistance strain
- measuring force
- 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.)
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention discloses a force-measuring resin anchor rod. It includes resin anchor rod body. It is characterized by that in the resin anchor rod body interior an electric-resistance strain gauge and a twisted pair line are solidified, said twisted pair line is connected with resistance wire of electric-resistance strain gauge, another end of said twisted pair line is outwards extended from tail portion of resin anchor rod body. Said force-measuring resin anchor rod not only can be used as general anchor rod for support, but also can be used as pressure-testing probe.
Description
Technical field
The application belongs to the support anchor rod of underground mine use, is a kind of resin anchor.
Background technology
At present under coal mine in the roadway support, more with resin anchor, its advantage is, and cost is low, and not corrosion is easy to the coal-winning machine cutting.It only plays single support action.Sometimes need under the coal mine fluctuating stress situation of roadway surrounding rock is tested, method of testing is drill in the tunnel hole installation testing probe, very trouble again.
Summary of the invention
The application proposes a kind of resin anchor bar for measuring force for the test problem that makes things convenient for of surrouding rock stress under the solution coal mine.
The application's structure is, it comprises the resin anchor body, it is characterized in that, is solidified with resistance strain gage and twisted-pair feeder in the resin anchor body, twisted-pair feeder is connected with the resistance wire of resistance strain gage, and the twisted-pair feeder other end stretches out resin anchor body afterbody and is used for being connected with resistance strain gauge.
The production method of this resin anchor bar for measuring force is: it is made with existing resin anchor production method, just before resin anchor solidifies resistance strain gage and the twisted-pair cable that is connected firmly are inserted in the resin anchor body, resin anchor solidifies the back and fixes as one with resistance strain gage and twisted-pair feeder.
This resin anchor bar for measuring force can use as the common bolt of support action, can use as the probe of pressure test again, though structure is simple, kills two birds with one stone.During dynamometry,, can converse the country rock fluctuating stress according to strain-stress relation as long as measure the front and back situation of change of resistance value.
Description of drawings
Fig. 1 is the application's a schematic diagram.
Among the figure: 1-resin anchor body, 2-resistance strain gage, 3-twisted-pair feeder.
The specific embodiment
As shown in Figure 1, it comprises resin anchor body 1, is solidified with resistance strain gage 2 and twisted-pair feeder 3 in its body, and resistance strain gage 2 and twisted-pair feeder 3 firmly weld, and its production method is as described in the technical scheme of front.
Claims (1)
1, a kind of resin anchor bar for measuring force, it comprises the resin anchor body, it is characterized in that, is solidified with resistance strain gage and twisted-pair feeder in the resin anchor body, and twisted-pair feeder is connected with the resistance wire of resistance strain gage, and the twisted-pair feeder other end stretches out resin anchor body afterbody.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710013232 CN101004137A (en) | 2007-01-17 | 2007-01-17 | Resin anchor bar for measuring force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710013232 CN101004137A (en) | 2007-01-17 | 2007-01-17 | Resin anchor bar for measuring force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101004137A true CN101004137A (en) | 2007-07-25 |
Family
ID=38703489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710013232 Pending CN101004137A (en) | 2007-01-17 | 2007-01-17 | Resin anchor bar for measuring force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101004137A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704972A (en) * | 2012-06-29 | 2012-10-03 | 山东大学 | Prestress measuring anchor rod and using method |
-
2007
- 2007-01-17 CN CN 200710013232 patent/CN101004137A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704972A (en) * | 2012-06-29 | 2012-10-03 | 山东大学 | Prestress measuring anchor rod and using method |
| CN102704972B (en) * | 2012-06-29 | 2015-06-10 | 山东大学 | Prestress measuring anchor rod and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |