CN102433879A - Assembly for applying prestress to glass fiber reinforced plastic anchor rod and using method thereof - Google Patents
Assembly for applying prestress to glass fiber reinforced plastic anchor rod and using method thereof Download PDFInfo
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- CN102433879A CN102433879A CN2011103641371A CN201110364137A CN102433879A CN 102433879 A CN102433879 A CN 102433879A CN 2011103641371 A CN2011103641371 A CN 2011103641371A CN 201110364137 A CN201110364137 A CN 201110364137A CN 102433879 A CN102433879 A CN 102433879A
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- sleeve pipe
- anchor rod
- nut
- glass fibre
- fibre reinforced
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000011152 fibreglass Substances 0.000 title abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000003365 glass fiber Substances 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 26
- 239000002131 composite material Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 239000011435 rock Substances 0.000 abstract description 8
- 239000011521 glass Substances 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to the field of anchor rod processing and application, in particular to an assembly for applying prestress to a glass fiber reinforced plastic anchor rod and a using method thereof. The utility model provides an add sub-assembly of prestressing force to glass steel stock which characterized in that, including one end outer wall be equipped with steel sleeve pipe (1) of external screw thread, with nut (2) and the gasket (3) of setting at nut (2) lower extreme that the external screw thread cooperation was used, steel sleeve pipe (1) inner wall still is equipped with the internal thread that is used for the fixed full thread glass steel stock of cooperation (5). Therefore, the invention has the following advantages: 1. the defect that a common glass fiber reinforced plastic anchor rod is difficult to apply high pre-tightening force is overcome, and the reinforcing effect of the anchor rod is improved, particularly the effect of reinforcing loose and broken rock and soil bodies; 2. the strength of the tail of the anchor rod can be improved, the probability of breakage of the anchor rod at the tail is reduced, no torque is generated when the glass fiber anchor rod applies prestress, and the performance and the quality of the anchor rod are improved.
Description
Technical field
The present invention relates to anchor pole processing and application, especially relate to and a kind of glass fibre reinforced plastics rockbolts is applied prestressed composite member and method for using thereof.
Background technology
In fields such as underground construction and slope project, bolt support is most widely used rock-reinforcing measure.At present; Common anchor pole type has grouting rock bolt, cement-roll anchor pole, mechanical anchor pole, pipe seam anchor bar and water swelling formula anchor pole etc., and the material of these anchor poles is main with steel mainly, yet; When adopting anchor metal to carry out the surrounding rock consolidation of underground mine; Be easy to generate spark, cause gas explosion, cause personnel's injures and deaths and property loss.In addition, anchor metal also has perishable, the defective of poor durability.Therefore, after glass fibre reinforced plastics rockbolts glass fiber anchor pole occurs since its have the cutting of being easy to, do not produce spark, advantage such as no ELECTROMAGNETIC REFLECTION, intensity are high, in light weight, corrosion-resistant, application is increasingly extensive in underground mine and slope reinforcement engineering.
Anchor pole need carry out pretension to anchor pole with nut when reinforcing rock mass, thereby the assurance anchor pole can be given full play to its effect.Yet, the moment of torsion that in the nut installation process, applies will to anchor bar body subsidiary apply certain moment of torsion, but the torque resistant performance of glass fibre reinforced plastics rockbolts is lower, when moment of torsion reaches relatively low degree, just ftractures, and can't continue to bear higher pulling force.Therefore, glass fibre reinforced plastics rockbolts often adopts the pretightning force that many lower than steel anchor rod when mounted, more can't as steel anchor rod, apply higher prestressing force, thereby to rock mass supporting power initiatively is provided.
Secondly, glass fibre reinforced plastics rockbolts is often wanted Forces under Eccentric Loads when the supporting rock mass; Because the fragility of glass-reinforced plastic material own is big, elongation per unit length is low, under the eccentric load effect, can make the anchor tail crackle occur from the maximum point of this section stress; And, split until the afterbody full section broken gradually to whole section development.Therefore, the destruction of glass fibre reinforced plastics rockbolts often all is disrumpent feelings in the generation earlier of anchor pole afterbody, and the anchor head and the body of rod are seldom destroyed.
Summary of the invention
The present invention mainly is that to solve the torque resistant performance of existing in prior technology glass fibre reinforced plastics rockbolts lower, when moment of torsion reaches relatively low degree, just ftractures, and can't continue to bear the technical problem of higher pulling force etc.; A kind of defective that the simple glass steel anchor rod is difficult to apply high-strength pretightning force that overcome is provided, has improved its consolidation effect, a kind of of effect who especially reinforces the loose crushing rock mass and the soil body apply prestressed composite member and method for using thereof to glass fibre reinforced plastics rockbolts.
It is to solve existing in prior technology because the fragility of glass-reinforced plastic material own is big that the present invention also has a purpose; Elongation per unit length is low; Under the eccentric load effect, can make the anchor tail crackle occur, and gradually to whole section development, the technical problem of splitting etc. until the afterbody full section broken from the maximum point of this section stress; A kind of intensity that improves the anchor pole afterbody is provided; Reduce anchor pole and disrumpent feelings probability takes place at afterbody; And do not produce moment of torsion when the glass fiber anchor pole applies prestressing force, improved a kind of of anchor pole performance and quality glass fibre reinforced plastics rockbolts is applied prestressed composite member and method for using thereof.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals:
A kind of glass fibre reinforced plastics rockbolts is applied prestressed composite member; It is characterized in that; Comprise that an end outer wall is provided with externally threaded steel sleeve pipe, the nut that is used with said external screw thread and the pad that is arranged on the nut lower end, said steel sleeve pipe is provided with an externally threaded end inwall and also is provided with the internal thread that is used for matching and fixing full thread glass fibre reinforced plastics rockbolts.
A kind of glass fibre reinforced plastics rockbolts is applied prestressed composite member above-mentioned, the said steel sleeve pipe other end also is provided with the prism that the cross section is a regular polygon, is the column type pipe between said prism and the external screw thread.
A kind of glass fibre reinforced plastics rockbolts is applied the method for using of prestressed composite member, it is characterized in that, may further comprise the steps:
Therefore, the present invention has following advantage: 1. overcome the defective that the simple glass steel anchor rod is difficult to apply high-strength pretightning force, improved its consolidation effect, especially reinforced the effect of the loose crushing rock mass and the soil body; 2. can improve the intensity of anchor pole afterbody, reduce anchor pole and disrumpent feelings probability takes place, and the glass fiber anchor pole do not produce moment of torsion when applying prestressing force, improved anchor pole performance and quality at afterbody.
Description of drawings
Accompanying drawing 1 is a kind of main TV structure sketch map of the present invention;
Accompanying drawing 2 is a kind of perspective view of the present invention.
The specific embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.Among the figure, sleeve pipe 1, nut 2, pad 3, roof bolt plate 4, full thread glass fibre reinforced plastics rockbolts 5.
Embodiment:
Like Fig. 1, shown in 2; A kind of glass fibre reinforced plastics rockbolts is applied prestressed composite member; Comprise that an end outer wall is provided with externally threaded steel sleeve pipe 1, the nut 2 that is used with external screw thread and the pad 3 that is arranged on nut 2 lower ends, steel sleeve pipe 1 is provided with an externally threaded end inwall and also is provided with the internal thread that is used for matching and fixing full thread glass fibre reinforced plastics rockbolts 5.
In the present embodiment, the prism cross section is a regular hexagon, and its external diameter is 32mm, and six prism heights are 20mm; The major diameter of external thread of steel sleeve pipe 1 is 26mm, and the external screw thread vertical length is 60mm; The external diameter of column type pipe is 26mm between six prisms and the external screw thread, and column type pipe vertical length is 40mm; Nut 2 is the steel hex nut, and its external diameter is 32mm, and internal diameter is 20mm, and thickness is 20mm; Pad 3 is circular and employing metal or macromolecular material pad, in the present embodiment, can adopt steel plate washer, and its internal diameter is 26mm, and external diameter is 32mm, and thickness is 2mm; The internal diameter of said steel sleeve pipe 1 is 20mm.
Use applies prestressed composite member to glass fibre reinforced plastics rockbolts the step of method for using is following:
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as sleeve pipe 1, nut 2, pad 3, roof bolt plate 4, full thread glass fibre reinforced plastics rockbolts 5 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.
Claims (3)
1. one kind applies prestressed composite member to glass fibre reinforced plastics rockbolts; It is characterized in that; Comprise that an end outer wall is provided with externally threaded steel sleeve pipe (1), the nut (2) that is used with said external screw thread and the pad (3) that is arranged on nut (2) lower end, said steel sleeve pipe (1) is provided with an externally threaded end inwall and also is provided with the internal thread that is used for matching and fixing full thread glass fibre reinforced plastics rockbolts (5).
2. according to claim 1ly a kind of glass fibre reinforced plastics rockbolts is applied prestressed composite member, it is characterized in that said steel sleeve pipe (1) other end also is provided with the prism that the cross section is a regular polygon, is the column type pipe between said prism and the external screw thread.
3. one kind is used that claim 1 is described to apply the method for using of prestressed composite member to glass fibre reinforced plastics rockbolts, it is characterized in that, may further comprise the steps:
Step 1; Steel sleeve pipe (1) is installed in the afterbody of full thread glass fibre reinforced plastics rockbolts (5) body through its internal thread, and nut (2) is installed in sleeve pipe (1) and establishes externally threaded part, and pad (3) is enclosed within on the steel sleeve pipe (1); And be positioned between nut (2) and the roof bolt plate (4)
Step 2, when applying prestressing force, that sleeve pipe (1) and roof bolt plate (4) is fixing to anchor pole (5); Stop its rotation; Swivel nut (2) makes nut (2) move to roof bolt plate (4) direction along sleeve pipe (1), thereby pad (3) and anchor plate (4) is applied extruding force again; Make anchor pole (5) afterbody bear certain axial tension, finally make anchor pole (5) body bear prestressing force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103641371A CN102433879A (en) | 2011-11-17 | 2011-11-17 | Assembly for applying prestress to glass fiber reinforced plastic anchor rod and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103641371A CN102433879A (en) | 2011-11-17 | 2011-11-17 | Assembly for applying prestress to glass fiber reinforced plastic anchor rod and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102433879A true CN102433879A (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103641371A Pending CN102433879A (en) | 2011-11-17 | 2011-11-17 | Assembly for applying prestress to glass fiber reinforced plastic anchor rod and using method thereof |
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| CN (1) | CN102433879A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284345A (en) * | 2016-10-18 | 2017-01-04 | 中国船舶重工集团公司第七�三研究所 | A kind of prestressed anchor fastening system |
| CN109707106A (en) * | 2019-01-11 | 2019-05-03 | 柳州市康桥机械有限公司 | A kind of anchor plate that portable plastics are combined with steel plate |
| CN112253198A (en) * | 2020-09-25 | 2021-01-22 | 中铁隆昌铁路器材有限公司 | Composite hollow anchor rod assembly and mounting method thereof |
| CN113445503A (en) * | 2020-03-27 | 2021-09-28 | 中国电建集团华东勘测设计研究院有限公司 | GFRP anchor rod prestress anchoring structure and prestress loading method |
| CN113505508A (en) * | 2021-07-02 | 2021-10-15 | 中衡设计集团股份有限公司 | Method for applying initial defects of rod piece in direct analysis method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2475833Y (en) * | 2001-04-28 | 2002-02-06 | 李晓峰 | Prestressing grouting for external head of anchor rod |
| EP1688545A1 (en) * | 2005-02-03 | 2006-08-09 | International Intec Patent Holding Establishment | Injection or prestressed anchor for open-air and subsoil constructions |
| CN1884716A (en) * | 2006-06-05 | 2006-12-27 | 吴德兴 | Prestress anchor device |
| CN1966937A (en) * | 2006-11-24 | 2007-05-23 | 天地科技股份有限公司 | Once supporting method for reinforced anchor rod in deep tunnel |
| CN201137142Y (en) * | 2007-12-20 | 2008-10-22 | 青岛建设集团公司 | Prestressed anchor rod anchoring end straight thread jacket immobilizing structure |
| CN201209455Y (en) * | 2008-06-23 | 2009-03-18 | 刘立民 | Pre-stress flexible anchoring bolt body and the anchor rod |
-
2011
- 2011-11-17 CN CN2011103641371A patent/CN102433879A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2475833Y (en) * | 2001-04-28 | 2002-02-06 | 李晓峰 | Prestressing grouting for external head of anchor rod |
| EP1688545A1 (en) * | 2005-02-03 | 2006-08-09 | International Intec Patent Holding Establishment | Injection or prestressed anchor for open-air and subsoil constructions |
| CN1884716A (en) * | 2006-06-05 | 2006-12-27 | 吴德兴 | Prestress anchor device |
| CN1966937A (en) * | 2006-11-24 | 2007-05-23 | 天地科技股份有限公司 | Once supporting method for reinforced anchor rod in deep tunnel |
| CN201137142Y (en) * | 2007-12-20 | 2008-10-22 | 青岛建设集团公司 | Prestressed anchor rod anchoring end straight thread jacket immobilizing structure |
| CN201209455Y (en) * | 2008-06-23 | 2009-03-18 | 刘立民 | Pre-stress flexible anchoring bolt body and the anchor rod |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284345A (en) * | 2016-10-18 | 2017-01-04 | 中国船舶重工集团公司第七�三研究所 | A kind of prestressed anchor fastening system |
| CN109707106A (en) * | 2019-01-11 | 2019-05-03 | 柳州市康桥机械有限公司 | A kind of anchor plate that portable plastics are combined with steel plate |
| CN113445503A (en) * | 2020-03-27 | 2021-09-28 | 中国电建集团华东勘测设计研究院有限公司 | GFRP anchor rod prestress anchoring structure and prestress loading method |
| CN113445503B (en) * | 2020-03-27 | 2022-06-28 | 中国电建集团华东勘测设计研究院有限公司 | GFRP anchor rod prestress anchoring structure and prestress loading method |
| CN112253198A (en) * | 2020-09-25 | 2021-01-22 | 中铁隆昌铁路器材有限公司 | Composite hollow anchor rod assembly and mounting method thereof |
| CN113505508A (en) * | 2021-07-02 | 2021-10-15 | 中衡设计集团股份有限公司 | Method for applying initial defects of rod piece in direct analysis method |
| CN113505508B (en) * | 2021-07-02 | 2024-01-02 | 中衡设计集团股份有限公司 | Method for applying initial defects of rod piece in direct analysis method |
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Application publication date: 20120502 |