CN102002946B - Anchor bolt or anchor cable pre-stressed control element and processing and usage method thereof - Google Patents
Anchor bolt or anchor cable pre-stressed control element and processing and usage method thereof Download PDFInfo
- Publication number
- CN102002946B CN102002946B CN2010105312849A CN201010531284A CN102002946B CN 102002946 B CN102002946 B CN 102002946B CN 2010105312849 A CN2010105312849 A CN 2010105312849A CN 201010531284 A CN201010531284 A CN 201010531284A CN 102002946 B CN102002946 B CN 102002946B
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- Prior art keywords
- anchor
- anchor bolt
- control element
- prestress
- anchor cable
- Prior art date
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Abstract
The invention discloses an anchor bolt or anchor cable pre-stressed control element and a processing and usage method thereof. The anchor bolt or anchor cable pre-stressed control element is a hemi-spherical housing punched by a hot-rolled steel plate. The top surface of the housing is processed with an anchor bolt hole. The yield strength of the housing is equal to a set anchor bolt or anchor cable prestress standard. When in use, the control element is installed between a damping nut of the anchor bolt and a tray of the anchor bolt. When the damping nut is tightened to exert a prestress which reaches and exceeds the set prestress standard, the pre-stressed control element is flattened under a pressure. Meanwhile, the anchor bolt or the anchor cable is pre-tightened. The control element has the beneficial effects that: at a construction site, the prestress of the anchor bolt and the anchor cable can be standardly controlled and detected promptly, and a problem of substandard surrounding rock support caused by improper prestress construction is reduced.
Description
Technical field
The present invention is the device of anchor pole or anchor cable prestressing force standard control in a kind of underground engineering support, especially can make things convenient for the prestressed instant detection of anchor pole or anchor cable and guarantee anchor pole in the work progress or control that the pretension of anchor cable requires.
Background technology
At present, in underground engineering support, generally adopt anchor pole or anchor cable to carry out, particularly anchor pole or anchor cable can apply prestressing force to the rock stratum, are that other support pattern is incomparable.But also there is not a kind of device can control the prestressing force of anchor pole or anchor cable; Can not be conveniently in work progress the prestressing force of anchor pole or anchor cable be carried out real-time calibration and detection; Be the pre-stress construction standard of uncontrollable anchor pole or anchor cable, cause construction effect not reach desirable requirement.
Summary of the invention
In order to solve control anchor pole or prestressed real-time control of anchor cable and detection problem; The present invention provides a kind of anchor pole or anchor cable prestressing force control; This control can be controlled the prestressing force standard of anchor pole or anchor cable construction; Also can be conveniently the prestressing force of anchor pole, anchor cable be carried out real-time calibration and detection, make anchor pole or anchor cable keep supporting intensity, to guarantee the supporting effect of underground construction to country rock.
The structure of anchor pole of the present invention or anchor cable prestressing force control is a rammed hemispherical shell of hot rolled steel plate, and the end face of housing is processed with bolthole, anchor pole that the yield strength of housing should equal to set or anchor cable prestressing force standard.
Add man-hour; The plectane of diameter less than the pallet diameter processed in certain thickness hot rolled steel plate punching press; And make bolthole at the plectane centre punch simultaneously; Then plectane is pressed into hemispherical and heat-treats, make it that certain yield strength arranged, the anchor shaft anchor cable prestressing force standard that this yield strength should equal to set; On forcing press, carry out pressure distortion test after the completion of processing, the thickness and the material of steel plate are adjusted, the anchor shaft anchor cable prestressing force standard that equals to set until the yield strength of control according to the pressure distortion curve.
During use, it is installed between the damping nut and anchor pole pallet of anchor pole, when the damping nut of screwing applied prestressing force, when reaching and surpass the prestressing force standard of setting, prestressing force control pressurized flattened, and this moment, anchor pole or anchor cable pretension were accomplished.When anchor pole of installing before detecting or anchor cable prestressing force, same principle, as long as anchor pole or anchor cable are not pulled out when prestressing force control pressurized flattens, explanation adheres to specification.
The invention has the beneficial effects as follows: at the construction field (site), can carry out standard control to the prestressing force of anchor pole, anchor cable and detect, and reduce because the pre-stress construction surrounding rock supporting that causes not in place problem not up to standard with instant.
Description of drawings
Fig. 1 is the schematic perspective view of prestressing force control of the present invention;
Fig. 2 is the main pseudosection of prestressing force control of the present invention.
Marginal data: 1-hemispherical shell, 2-bolthole.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified.As shown in Figure 1, anchor pole of the present invention or anchor cable prestressing force control are rammed hemispherical shells 1 of hot rolled steel plate, and the end face of housing 1 is processed with bolthole 2.
Add man-hour; The plectane of diameter less than the pallet diameter processed in certain thickness hot rolled steel plate punching press; And make bolthole 2 at the plectane centre punch simultaneously; Then plectane is pressed into hemispherical shell 1 and heat-treats, make it that certain yield strength arranged, the anchor shaft anchor cable prestressing force standard that this yield strength should equal to set; On forcing press, carry out pressure distortion test after the completion of processing, the thickness and the material of steel plate are adjusted, the anchor shaft anchor cable prestressing force standard that equals to set until the yield strength of control according to the pressure distortion curve.
Claims (2)
1. anchor rod prestress control, it be one by the rammed hemispherical shell of hot rolled steel plate, the end face of housing is processed with bolthole; It is characterized in that, process that the plectane of diameter less than the pallet diameter processed in selected certain thickness hot rolled steel plate punching press by following method; And make bolthole at the plectane centre punch simultaneously; Then plectane is pressed into hemispherical and heat-treats, make it have certain yield strength, the anchor rod prestress standard that this yield strength should equal to set; After the completion of processing, on forcing press, carry out pressure distortion test, the thickness and the material of steel plate are adjusted, the anchor rod prestress standard that equals to set until the yield strength of control according to the pressure distortion curve.
2. the method for using of an anchor rod prestress control as claimed in claim 1; It is characterized in that, during use, it is installed between the damping nut and anchor pole pallet of anchor pole; When the damping nut of screwing applies prestressing force; When reaching and surpass the prestressing force standard of setting, prestressing force control pressurized flattens, and this moment, the anchor pole pretension was accomplished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105312849A CN102002946B (en) | 2010-10-23 | 2010-10-23 | Anchor bolt or anchor cable pre-stressed control element and processing and usage method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105312849A CN102002946B (en) | 2010-10-23 | 2010-10-23 | Anchor bolt or anchor cable pre-stressed control element and processing and usage method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102002946A CN102002946A (en) | 2011-04-06 |
| CN102002946B true CN102002946B (en) | 2012-07-25 |
Family
ID=43810632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105312849A Expired - Fee Related CN102002946B (en) | 2010-10-23 | 2010-10-23 | Anchor bolt or anchor cable pre-stressed control element and processing and usage method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102002946B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2830644Y (en) * | 2004-06-03 | 2006-10-25 | 中国科学院武汉岩土力学研究所 | Controllable prestressed super-strength anchor arm |
| CN201206470Y (en) * | 2008-05-29 | 2009-03-11 | 中国矿业大学 | Yield press anchor cable |
| CN201448117U (en) * | 2009-08-02 | 2010-05-05 | 曹君陟 | Bolting yield component |
| CN201843139U (en) * | 2010-10-23 | 2011-05-25 | 山东科技大学 | Prestress control of anchor rod or anchor cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1143941A (en) * | 1997-07-29 | 1999-02-16 | Ohbayashi Corp | Anchor fixture part structure |
-
2010
- 2010-10-23 CN CN2010105312849A patent/CN102002946B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2830644Y (en) * | 2004-06-03 | 2006-10-25 | 中国科学院武汉岩土力学研究所 | Controllable prestressed super-strength anchor arm |
| CN201206470Y (en) * | 2008-05-29 | 2009-03-11 | 中国矿业大学 | Yield press anchor cable |
| CN201448117U (en) * | 2009-08-02 | 2010-05-05 | 曹君陟 | Bolting yield component |
| CN201843139U (en) * | 2010-10-23 | 2011-05-25 | 山东科技大学 | Prestress control of anchor rod or anchor cable |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-43941A 1999.02.16 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102002946A (en) | 2011-04-06 |
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Granted publication date: 20120725 Termination date: 20141023 |
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| EXPY | Termination of patent right or utility model |