CN103628477B - A kind of prestressing force charger for glass fiber-reinforced polymer anchor pole - Google Patents
A kind of prestressing force charger for glass fiber-reinforced polymer anchor pole Download PDFInfo
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- CN103628477B CN103628477B CN201310557126.4A CN201310557126A CN103628477B CN 103628477 B CN103628477 B CN 103628477B CN 201310557126 A CN201310557126 A CN 201310557126A CN 103628477 B CN103628477 B CN 103628477B
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- anchor pole
- glass fiber
- connecting rod
- reinforced polymer
- loaded plate
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a kind of prestressing force charger for glass fiber-reinforced polymer anchor pole, it is characterized in that: in the anchoring platform anchor hole of side slope glass fiber-reinforced polymer anchor pole, be sheathed with steel sleeve, inwall and the side slope glass fiber-reinforced polymer anchor pole of steel sleeve pass through epoxy bond; The upper end of steel sleeve is threaded with the lower end of lower connecting rod, and the upper end of lower connecting rod is threaded with the lower end of upper connecting rod through after the lower loaded plate being embedded in anchoring platform upper surface; Lower connecting rod position above lower loaded plate has been threaded locking nut; The upper end of upper connecting rod is through upper loaded plate and be connected with hold-down nut with after hollow hydraulic jack; Upper loaded plate is fixed on lower loaded plate by four counter-force bar screw threads.This device can not produce shear failure to anchor pole when Shi Hanzhang, effectively can provide accurate prestressing force to side slope glass fiber-reinforced polymer anchor pole; And be easy to dismounting, energy Reusability, be conducive to using in ungetable mountain area side slope.
Description
Technical field
The invention belongs to technical field of civil engineering, particularly the prestressing force loading technique field of side slope glass fiber-reinforced polymer anchor pole.
Background technology
Side slope prestress anchoraging is a kind of measure increasing slope stability with anchoring process.Its method be beat, hole through likely slide or the slide plane that slid over, one end of reinforcing bar (or cable wire) is fixed in the stable Rock And Soil at the bottom of hole, reinforcing bar (or cable wire) is strained so that can certain prestressing force be produced again, then the other end side slope of reinforcing bar (rope) is fixed on side slope surface, utilizing the prestressing force of reinforcing bar to compress can slidable slope ground body or retaining structure, to increase the shear strength on slide plane, thus reach the object improving slope stability.
Glass fiber-reinforced polymer is a kind of is matrix material with resin, and alkali-free glass fibre is main reinforcing material, and that is made by pultrusion molding process has the corrosion resistant new material of high-strength light.Glass fiber-reinforced polymer anchor pole is very fast as the development of a kind of novel slope retaining anchor pole, obtains certain application in mine, slope retaining abroad.Equal conditions lower-glass fiber anchor rod is applied to side slope permanent support and compares reinforced anchor bolt and have better tension, stronger durability.But because the horizontal shear resistance of fiber bar is very weak compared to the horizontal shear resistance of plain bars anchor pole, as adopted existing reinforced anchor bolt prestressing force charger, the transverse shearing force that its fixture produces can make glass fiber-reinforced polymer anchor pole that horizontal shear failure occurs, cause glass fiber-reinforced polymer anchor rod prestress to load or to load and do not reach design load, make its anchoring support weak effect.
Summary of the invention
Object of the present invention is just to provide a kind of prestressing force charger for side slope glass fiber-reinforced polymer anchor pole, and this device can not produce shear failure to anchor pole when Shi Hanzhang, effectively can provide accurate prestressing force to side slope glass fiber-reinforced polymer anchor pole; And be easy to dismounting, energy Reusability, be conducive to using in ungetable mountain area side slope.
The present invention for the technical scheme realizing its goal of the invention and adopt be that a kind of prestressing force charger for glass fiber-reinforced polymer anchor pole, is characterized in that:
In the anchoring platform anchor hole of side slope glass fiber-reinforced polymer anchor pole, be sheathed with steel sleeve, inwall and the side slope glass fiber-reinforced polymer anchor pole of steel sleeve pass through epoxy bond;
The upper end of steel sleeve is threaded with the lower end of lower connecting rod, and the upper end of lower connecting rod is threaded with the lower end of upper connecting rod through after the lower loaded plate being embedded in anchoring platform upper surface; Lower connecting rod position above lower loaded plate has been threaded locking nut;
The upper end of upper connecting rod is through upper loaded plate and be connected with hold-down nut with after hollow hydraulic jack;
Upper loaded plate is fixed on lower loaded plate by four counter-force bar screw threads.
The course of work of the present invention and principle are:
Fit steel sleeve in the anchoring platform anchor hole of side slope glass fiber-reinforced polymer anchor pole, inwall and the side slope glass fiber-reinforced polymer anchor pole of steel sleeve pass through epoxy bond.
Regulate four counter-force bar screw threads and the degree of depth that is threaded of lower loaded plate, make loaded plate vertical with upper and lower connecting rod and side slope glass fiber-reinforced polymer anchor pole.Adjusting lock nut makes it upwards depart from lower loaded plate, then tightens hold-down nut.
Subsequently, open hollow hydraulic jacking oil pump, by hollow hydraulic jack, upper connecting rod, lower connecting rod, steel sleeve 2 stretch-draw glass fiber-reinforced polymer anchor pole, when stretching force reaches design load, tighten locking nut, the prestressing force of anchor pole loads anchor pole and namely completes and be fixed.
After loading completes, to jack pressure release, remove jack, upper connecting rod, upper loaded plate and counter-force bar successively; The parts removed can supply Reusability.
Compared with prior art, the invention has the beneficial effects as follows:
One, transmit axial prestress by the steel sleeve of inwall and glass fiber-reinforced polymer anchor pole epoxy bond to anchor pole, than passing through holder glass fiber anchor pole, anchor pole shearing force reduces greatly, almost nil; Regulated by four counter-force bars and the depth of thread thereof simultaneously and can ensure that loaded plate is vertical with glass fiber anchor pole, thus do not produce transverse shearing force when ensureing Shi Hanzhang, can not produce shear failure to anchor pole, solving jack can not the problem of direct drawing glass fiber anchor pole.
Two, steel sleeve is bonding with glass fiber anchor pole solid and reliable, and while avoiding producing cross shear to anchor pole, it also avoid the slippage between glass fiber anchor pole and steel sleeve, prestressing force loads accurately.
Three, except being that except bonding, remaining part is and is threaded between steel sleeve and anchor pole, device is easy for installation is easy to dismounting; The parts such as upper connecting rod, upper loaded plate, counter-force bar all can Reusability; Be conducive to using in ungetable mountain area side slope.
Below in conjunction with accompanying drawing and concrete embodiment, the present invention is further detailed explanation.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of embodiment of the present invention device.
Detailed description of the invention
Embodiment
Fig. 1 illustrates, a kind of detailed description of the invention of the present invention, and a kind of prestressing force charger for glass fiber-reinforced polymer anchor pole, is characterized in that:
In anchoring platform 1 anchor hole of side slope glass fiber-reinforced polymer anchor pole 13, be sheathed with steel sleeve 2, inwall and the side slope glass fiber-reinforced polymer anchor pole 13 of steel sleeve 2 are bondd by epoxy resin 15;
The upper end of steel sleeve 2 is threaded with the lower end of lower connecting rod 6, and the upper end of lower connecting rod 6 is threaded with the lower end of upper connecting rod 10 through the lower loaded plate 3 being embedded in anchoring platform 1 upper surface is rear; Lower connecting rod 6 position above lower loaded plate 3 has been threaded locking nut 4;
The upper end of upper connecting rod 10 is through upper loaded plate 8 and be connected with hold-down nut 12 with after hollow hydraulic jack 9;
Upper loaded plate 8 is fixed on lower loaded plate 3 by four counter-force bar 5 screw threads.
The upper connecting rod 10 of this example is provided with pad 11 between hold-down nut and hollow hydraulic jack 9.
Claims (2)
1., for a prestressing force charger for glass fiber-reinforced polymer anchor pole, it is characterized in that:
In anchoring platform (1) anchor hole of side slope glass fiber-reinforced polymer anchor pole (13), be sheathed with steel sleeve (2), inwall and the side slope glass fiber-reinforced polymer anchor pole (13) of steel sleeve (2) are bondd by epoxy resin (15);
The upper end of steel sleeve (2) is threaded with the lower end of lower connecting rod (6), and the upper end of lower connecting rod (6) is threaded with the lower end of upper connecting rod (10) afterwards through the lower loaded plate (3) being embedded in anchoring platform (1) upper surface; Lower connecting rod (6) to be threaded locking nut (4) at position, lower loaded plate (3) top;
The upper end of upper connecting rod (10) is connected with hold-down nut (12) afterwards through upper loaded plate (8) and hollow hydraulic jack (9);
Upper loaded plate (8) is fixed on lower loaded plate (3) by four counter-force bar (5) screw threads.
2. a kind of prestressing force charger for glass fiber-reinforced polymer anchor pole according to claim 1, is characterized in that: described upper connecting rod (10) is provided with pad (11) between hold-down nut and hollow hydraulic jack (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310557126.4A CN103628477B (en) | 2013-11-11 | 2013-11-11 | A kind of prestressing force charger for glass fiber-reinforced polymer anchor pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310557126.4A CN103628477B (en) | 2013-11-11 | 2013-11-11 | A kind of prestressing force charger for glass fiber-reinforced polymer anchor pole |
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| Publication Number | Publication Date |
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| CN103628477A CN103628477A (en) | 2014-03-12 |
| CN103628477B true CN103628477B (en) | 2015-09-30 |
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| CN201310557126.4A Active CN103628477B (en) | 2013-11-11 | 2013-11-11 | A kind of prestressing force charger for glass fiber-reinforced polymer anchor pole |
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Families Citing this family (10)
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| CN105004615B (en) * | 2015-08-10 | 2017-12-22 | 河南理工大学 | Raising coal road bolting pull-out test effects device with telescopic base |
| CN105699192A (en) * | 2016-03-14 | 2016-06-22 | 安徽省建筑科学研究设计院 | Pull-out test device of glass fiber rib anti-floating anchor and test method of pull-out test device |
| CN106193615B (en) * | 2016-08-30 | 2018-08-21 | 安徽建工集团有限公司 | A kind of glass fiber-reinforced polymer prestressed anti-floating anchor rod loading device and its construction method |
| CN106223368B (en) * | 2016-08-30 | 2018-06-29 | 安徽建工集团有限公司 | Glass fibre prestressed anchor anchor structure, its loading device and loading method |
| CN109736304B (en) * | 2019-01-14 | 2024-03-22 | 江苏东合南岩土科技股份有限公司 | Glass fiber composite anchor cable bar, glass fiber composite anchor cable and construction method of anchor rod |
| CN110725210B (en) * | 2019-05-01 | 2021-09-17 | 河南交院工程技术集团有限公司 | Inhaul cable stepping tensioning construction method and tensioning equipment |
| 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 |
| CN111945723A (en) * | 2020-08-04 | 2020-11-17 | 北京建筑大学 | Foundation pit support GFRP (glass fiber reinforced plastic) rib anchor cable structure and using method thereof |
| CN111945725A (en) * | 2020-08-04 | 2020-11-17 | 北京市政建设集团有限责任公司 | Prestress intelligent applying system and method for anchor cable supporting structure |
| CN114737566A (en) * | 2022-05-12 | 2022-07-12 | 青岛理工大学 | Pre-tightening force applying device and method for large-diameter pre-tensioned glass fiber rib anti-floating anchor rod |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200985797Y (en) * | 2006-07-28 | 2007-12-05 | 北京中煤矿山工程有限公司 | Anchor rod preloader |
| SE0700509L (en) * | 2007-03-02 | 2008-08-05 | Atlas Copco Tools Ab | Connectors for a multi-conductor cable with traction transmission |
| CN202148913U (en) * | 2011-07-28 | 2012-02-22 | 湖南科技大学 | Anchor rod pretightening device |
| CN202718692U (en) * | 2012-05-29 | 2013-02-06 | 宝钢集团新疆八一钢铁有限公司 | Stirring anchoring pre-loading device for anchor rod |
| CN202882961U (en) * | 2012-10-24 | 2013-04-17 | 西安科技大学 | Anchor rod tension force detection and pre-tightened integration device |
| CN203654279U (en) * | 2013-11-11 | 2014-06-18 | 西南交通大学 | Prestressing force loading device for glass fiber rib anchor rod |
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