CN202866845U - Deformation resisting anchor rope/anchor rod capable of detecting anchoring quality timely - Google Patents
Deformation resisting anchor rope/anchor rod capable of detecting anchoring quality timely Download PDFInfo
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- CN202866845U CN202866845U CN 201220458659 CN201220458659U CN202866845U CN 202866845 U CN202866845 U CN 202866845U CN 201220458659 CN201220458659 CN 201220458659 CN 201220458659 U CN201220458659 U CN 201220458659U CN 202866845 U CN202866845 U CN 202866845U
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- anchor
- sleeve pipe
- contractibility
- end cap
- anchoring quality
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Abstract
The utility model discloses a deformation resisting anchor rope/anchor rod capable of detecting anchoring quality timely. The deformation resisting anchor rope/anchor rod capable of detecting anchoring quality timely comprises a friction sleeve, contractible components, a steel strand ( rod body ), a pallet and a nut. The deformation resisting anchor rope/anchor rod capable of detecting anchoring quality timely is characterized in that the sleeve extends to the outside of an anchor eye and is in wide-open structure, and the displacement of the contractible components during the process can be measured directly at the external port of the sleeve. Surrounding rocks are supported, meanwhile the drawing force of the anchor rope/anchor rod and the displacement of the surrounding rocks can be measured conveniently, the problem of the existing high measuring cost is solved, and the application value is significant.
Description
Technical field
The utility model relates to a kind of geotechnical engineering anchor device, relate in particular to a kind of can detect anchoring quality in good time increase resistive shape anchor cable/anchor pole.
Background technology
Along with the deep development that extensive geotechnical engineering is built, the geological conditions that faces becomes increasingly complex, and country rock often shows the characteristics of large deformation.When rock deformation is larger, when surpassing the scope that anchor cable/anchor pole can bear, will causes anchor cable/anchor pole damage inactivation, and then cause underground construction unstable failure accident.
For this situation, present patent application person develops and increases accordingly resistive shape anchor cable/anchor pole (201110368935.1,201110368805.8) to adapt to these situations.Above-mentioned patent is found following problem in application process: for the long-time stability of grasping country rock and the reliability of anchoring system, need to detect surrounding rock displacement and anchoring quality, yet the cost of special checkout equipment is higher, and has various drawbacks.
At present, the detection of the anchoring quality of anchor cable/anchor pole and rock displacement all needs special equipment.Generally detect Detection of Bolt Bonding Integrity by the pull-out test method in China, multiple position extensometer detects deep displacement, and flat jack etc. detect anchor pole load, and these methods more or less have certain limitation.The pull-out test method rests on jack more and carries out the mechanical damage pull-out test stage both at home and abroad, and this method not only will spend long time and sizable expensive, and testing process can produce infringement to anchor pole.In addition, stressing conditions and anchor pole natural stress in rock mass of anchor pole have very big difference in the drawing experiment, and the method can not reflect real stress in the anchor pole course of work.For detection of the multiple position extensometer of surrounding rock displacement, each measuring point cost reaches several thousand even unit up to ten thousand, is not suitable for carrying out the measurement of surrounding rock displacement on a large scale.
Summary of the invention
The utility model discloses a kind of can detect anchoring quality in good time increase resistive shape anchor cable/anchor pole, when country rock is played support action, can also realize the anchored force of anchor cable/anchor pole and the detection of surrounding rock displacement, overcome present measurement difficulty, and the high problem of cost.
A kind of resistive shape anchor cable/anchor pole that increases that can in good time detect anchoring quality described in the utility model comprises: friction sleeve pipe, contractibility member, steel strand (body of rod), pallet, nut and outer end cap.Sleeve pipe extends to the anchor hole outside, is the open type structure, can directly measure the displacement that the contractibility member occurs in the course of the work by the sleeve pipe external port.
Described friction sleeve pipe is the tubular thick walled steel tube, and internal diameter passes through and diminishes gradually; Described contractibility member, be the steel pipe with axial breach, external diameter diminishes gradually from the end to end of member, is nested in the friction sleeve pipe, and the outer wall of contractibility member keeps in touch with the inwall of friction sleeve pipe, when being subjected to pulling force with friction sleeve pipe generation relative sliding, the breach pressurized shrinks simultaneously, and resistance increases thereupon, and contractibility member external diameter is slightly larger than casing inner diameter, be pressed into by force by mechanical device during installation, in order to apply certain prestressing force.
Be fixed on boring depths (at the bottom of the hole) by sleeve pipes that will rub such as resin anchoring agents.When country rock deforms and its counter-force when surpassing a threshold value, by the slippage of steady brace pulling contractibility member, because the friction sleeve bore diminishes from inside to outside gradually, cause contractibility member generation closure deformation, and to the increasing extruding force of friction sleeve pipe generation, produce the frictional resistance that constantly increases thus and between the friction sleeve pipe.Along with the continuous increase of working resistance, produce the continuous inhibition effect that increases, can also allow pull bar that larger displacement occurs and be out of shape with suitable for surrounding rock, in the surrouding rock deformation process, also can constantly absorb the surrouding rock deformation energy, keep the stable of country rock.
The outer wall of outside of sleeve is provided with screw thread, is used for being connected with tray nut.Comprise in addition outer end cap, be arranged at friction sleeve pipe outer end, the two links to each other by screw thread, its role is to prevent that the foreign material such as dust, water from entering sleeve pipe, avoids anchor cable/anchor structure to be corroded.
Preferably, reserve peep hole at end cap, at the graduated cord-like device of the termination of body of rod fixed band, and it is drawn from peep hole.
The utility model principle roughly is: during country rock generation large deformation, steel strand (body of rod) are together with surveying movement by the contracting member in the friction sleeve pipe.Open end cap, can record its displacement by survey tools such as slide measures, be the distortion that country rock occurs under the supporting condition.For the anchor cable/anchor pole of same model, there are corresponding relation in stress and distortion, can demarcate by experiment acquisition, so just can calculate the anchored force of anchor cable/anchor pole.
The utility model can detect surrounding rock displacement and anchored force under the supporting condition in good time when country rock generation large deformation, in time find inefficacy anchor cable/anchor pole in order to safeguard or replacing, bring into play simultaneously support action tension elongation and failure not itself, and can increase continuously working resistance, overcome the high problem of special detection installation cost, had important using value.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and the specific embodiment:
Fig. 1 is the structural principle schematic diagram of a kind of embodiment of the utility model anchor cable;
Fig. 2 is the main TV structure principle schematic of contractibility member in Fig. 1 mode;
Fig. 3 is the left TV structure principle schematic of Fig. 1 mode;
Fig. 4 is the A-A schematic cross-section of Fig. 1;
Fig. 5 is the pulling force that increases resistive shape anchor cable-displacement curve schematic diagram.
The specific embodiment
In conjunction with Fig. 1 to Fig. 4, a kind of can detect anchoring quality in good time increase resistive shape anchor cable/anchor pole, comprise friction sleeve pipe 1, contractibility member 2, steel strand (body of rod) 3, pallet 4, nut 5 and outer end cap 6.
Described friction sleeve pipe 1 is the tubular thick walled steel tube, and internal diameter passes through and diminishes gradually; Described contractibility member 2, be the steel pipe with axial breach 7, be nested in the friction sleeve pipe, the external diameter of contractibility member diminishes gradually from the end to end of member, the outer wall of contractibility member keeps in touch with the inwall of friction sleeve pipe, when being subjected to pulling force with friction sleeve pipe generation relative sliding, the simultaneously passive contraction of breach, resistance increases thereupon; The inwall of above-mentioned friction sleeve pipe, contractibility member outer wall except adopting conventional light face structure, also can adopt a kind of like this optimal way, and screw thread namely is set, and are used for increasing friction factor; The friction sleeve pipe extends to the anchor hole outside, is the open type structure, can directly measure the displacement that the contractibility member occurs in the course of the work by the sleeve pipe external port.The outer wall of sleeve pipe is provided with screw thread, is used for being connected with tray nut; The inwall of sleeve pipe is provided with screw thread, is used for linking to each other with outer end cap 6; The effect of outer end cap is to prevent that the foreign material such as dust, water from entering sleeve pipe, avoids anchor cable/anchor structure to be corroded.
During country rock generation large deformation, steel strand (body of rod) 3 together with can contracting member 2 to friction sleeve pipe 1 medial movement.Open end cap, can record its displacement by survey tools such as slide measures, be the distortion that country rock occurs under the supporting condition.For the anchor cable/anchor pole of same model, there are corresponding relation in stress and distortion, as shown in Figure 5, can demarcate by experiment acquisition, so just can calculate the supporting power of anchor cable/anchor pole performance.
Preferably, reserve peep hole at end cap, at the graduated cord-like device of the termination of body of rod fixed band, and it is drawn from peep hole, drive it when the body of rod is subjected to displacement and move, needn't open the displacement that end cap can record the body of rod like this.
The utility model can detect surrounding rock displacement and anchoring quality under the supporting condition in good time when country rock generation large deformation, bring into play simultaneously support action tension elongation and failure not itself, and can increase continuously working resistance.In the situation that do not increase cost, the control measurement device is coupled in the suspension device.Detect at any time anchoring quality, in time find inefficacy anchor cable/anchor pole.
The above; it only is the better specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.
Claims (2)
- One kind can detect anchoring quality in good time increase resistive shape anchor cable/anchor pole, comprise friction sleeve pipe, contractibility member, steel strand/body of rod, pallet, nut and outer end cap, it is characterized in that, sleeve pipe extends to the anchor hole outside, is the open type structure, and is provided with outer end cap;Described friction sleeve pipe is the tubular thick walled steel tube, and internal diameter passes through and diminishes gradually, and outer wall and the inwall of sleeve pipe outer end are equipped with screw thread;Described contractibility member is the steel pipe with axial breach, and external diameter diminishes gradually from the end to end of member, is nested in the friction sleeve pipe, and the outer wall of contractibility member keeps in touch with the inwall of friction sleeve pipe, and contractibility member external diameter is slightly larger than casing inner diameter;Described outer end cap is connected with internal surface of sleeve pipe by screw thread.
- According to claim 1 a kind of can detect anchoring quality in good time increase resistive shape anchor cable/anchor pole, it is characterized in that except adopting conventional end cap, another kind of optimal way is, reserve peep hole at end cap, at the graduated cord-like device of the termination of body of rod fixed band, and it is drawn from peep hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458659 CN202866845U (en) | 2012-09-02 | 2012-09-02 | Deformation resisting anchor rope/anchor rod capable of detecting anchoring quality timely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458659 CN202866845U (en) | 2012-09-02 | 2012-09-02 | Deformation resisting anchor rope/anchor rod capable of detecting anchoring quality timely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202866845U true CN202866845U (en) | 2013-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220458659 Expired - Fee Related CN202866845U (en) | 2012-09-02 | 2012-09-02 | Deformation resisting anchor rope/anchor rod capable of detecting anchoring quality timely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202866845U (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123962A (en) * | 2016-07-18 | 2016-11-16 | 绍兴文理学院 | Large deformation pallet for deformation of the surrounding rock in tunnel monitoring |
| CN107740702A (en) * | 2017-11-14 | 2018-02-27 | 缪协兴 | A kind of pressure-release anchor cable |
| CN107747500A (en) * | 2017-11-14 | 2018-03-02 | 缪协兴 | A kind of pressure-relieving achor bar |
| CN108071410A (en) * | 2017-11-27 | 2018-05-25 | 山东大学 | A kind of piston type increases resistance pressure-relieving achor bar and construction method |
| CN108316957A (en) * | 2018-02-09 | 2018-07-24 | 成都广雄科技有限公司 | A kind of resistance-enlarging-type anchor pole |
| CN108343457A (en) * | 2018-02-09 | 2018-07-31 | 成都广雄科技有限公司 | A kind of anchor pole being suitable for surrouding rock deformation |
| CN108426517A (en) * | 2018-03-23 | 2018-08-21 | 中国科学院武汉岩土力学研究所 | A kind of country rock radial displacement measuring device |
| CN108457684A (en) * | 2018-03-12 | 2018-08-28 | 福建省地质工程勘察院 | One kind can extend anchor pole |
| CN108612552A (en) * | 2018-04-26 | 2018-10-02 | 成都理工大学 | A kind of anchor pole |
| CN108678788A (en) * | 2018-04-18 | 2018-10-19 | 山东大学 | A kind of body of rod piston increases resistance pressure-relieving achor bar and construction method |
| CN109487786A (en) * | 2018-11-30 | 2019-03-19 | 中国建筑第七工程局有限公司 | A kind of novel large deformation anchor cable component |
| CN109915188A (en) * | 2019-04-16 | 2019-06-21 | 中国矿业大学 | A kind of high-strength surely hinder detachable pushes back half davit and wall rock deformation monitoring method |
| CN110067582A (en) * | 2019-05-05 | 2019-07-30 | 中国矿业大学 | For surrounding rock supporting, the anchor pole and its installation method of instability monitoring |
| CN110847930A (en) * | 2019-12-09 | 2020-02-28 | 中交第一公路勘察设计研究院有限公司 | Multistage yielding-resisting supporting structure of extremely-high ground stress soft rock large-deformation tunnel and construction method |
| CN113175341A (en) * | 2021-06-10 | 2021-07-27 | 福州大学 | Construction method of deformed anchor cable capable of applying prestress |
-
2012
- 2012-09-02 CN CN 201220458659 patent/CN202866845U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123962A (en) * | 2016-07-18 | 2016-11-16 | 绍兴文理学院 | Large deformation pallet for deformation of the surrounding rock in tunnel monitoring |
| CN107740702A (en) * | 2017-11-14 | 2018-02-27 | 缪协兴 | A kind of pressure-release anchor cable |
| CN107747500A (en) * | 2017-11-14 | 2018-03-02 | 缪协兴 | A kind of pressure-relieving achor bar |
| CN108071410A (en) * | 2017-11-27 | 2018-05-25 | 山东大学 | A kind of piston type increases resistance pressure-relieving achor bar and construction method |
| CN108316957A (en) * | 2018-02-09 | 2018-07-24 | 成都广雄科技有限公司 | A kind of resistance-enlarging-type anchor pole |
| CN108343457A (en) * | 2018-02-09 | 2018-07-31 | 成都广雄科技有限公司 | A kind of anchor pole being suitable for surrouding rock deformation |
| CN108457684A (en) * | 2018-03-12 | 2018-08-28 | 福建省地质工程勘察院 | One kind can extend anchor pole |
| CN108426517A (en) * | 2018-03-23 | 2018-08-21 | 中国科学院武汉岩土力学研究所 | A kind of country rock radial displacement measuring device |
| CN108678788A (en) * | 2018-04-18 | 2018-10-19 | 山东大学 | A kind of body of rod piston increases resistance pressure-relieving achor bar and construction method |
| CN108612552A (en) * | 2018-04-26 | 2018-10-02 | 成都理工大学 | A kind of anchor pole |
| CN109487786A (en) * | 2018-11-30 | 2019-03-19 | 中国建筑第七工程局有限公司 | A kind of novel large deformation anchor cable component |
| CN109915188A (en) * | 2019-04-16 | 2019-06-21 | 中国矿业大学 | A kind of high-strength surely hinder detachable pushes back half davit and wall rock deformation monitoring method |
| CN110067582A (en) * | 2019-05-05 | 2019-07-30 | 中国矿业大学 | For surrounding rock supporting, the anchor pole and its installation method of instability monitoring |
| CN110847930A (en) * | 2019-12-09 | 2020-02-28 | 中交第一公路勘察设计研究院有限公司 | Multistage yielding-resisting supporting structure of extremely-high ground stress soft rock large-deformation tunnel and construction method |
| CN113175341A (en) * | 2021-06-10 | 2021-07-27 | 福州大学 | Construction method of deformed anchor cable capable of applying prestress |
| US11867062B2 (en) | 2021-06-10 | 2024-01-09 | Fuzhou University | Construction method for deformable anchor cable capable of being prestressed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20150902 |
|
| EXPY | Termination of patent right or utility model |