CN103628477A - Prestress loading device used for fiberglass rib anchor rod - Google Patents
Prestress loading device used for fiberglass rib anchor rod Download PDFInfo
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- CN103628477A CN103628477A CN201310557126.4A CN201310557126A CN103628477A CN 103628477 A CN103628477 A CN 103628477A CN 201310557126 A CN201310557126 A CN 201310557126A CN 103628477 A CN103628477 A CN 103628477A
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- connecting rod
- steel sleeve
- anchor pole
- glass fiber
- anchor rod
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a prestress loading device used for a fiberglass rib anchor rod. The prestress loading device is characterized in that a steel sleeve is matched in an anchoring platform anchor span of the slope fiberglass rib anchor rod in a sleeved mode, and the inner wall of the steel sleeve and the slope fiberglass rib anchor rod adhere through epoxy resin; the upper end of the steel sleeve is in threaded connection with threads at the lower end of a lower connecting rod, the upper end of the lower connecting rod penetrates trough a lower bearing plate buried in the upper surface of an anchoring platform in advance and then is in threaded connection with threads at the lower end of an upper connecting rod, the lower connecting rod is connected with a locking nut on the upper portion of the lower bearing plate, the upper end of the upper connecting rod penetrates through an upper bearing plate and a hollow hydraulic jack and then is connected with a fixing nut, and the upper bearing plate is fixed to the lower bearing plate through four counter-force threads. The prestress loading device can not cause shear damage to the anchor rod when exerting prestress and can effectively provide the accurate prestress for the slope fiberglass rib anchor rod, and is easy to disassemble, capable of being used repeatedly and beneficial to utilization in mountainous area slopes where traffic is inconvenient.
Description
Technical field
The invention belongs to technical field of civil engineering, particularly the prestressing force loading technique field of side slope glass fiber muscle anchor pole.
Background technology
Side slope prestress anchoraging is with anchoring process, to increase a kind of measure of slope stability.Its method be beat, boring is through slide plane that slide or that slided likely, one end of reinforcing bar (or cable wire) is fixed in the stable Rock And Soil at the bottom of hole, again reinforcing bar (or cable wire) is strained so that can be produced certain prestressing force, then the other end side slope of reinforcing bar (rope) is fixed on to 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, thereby reach the object that improves slope stability.
Glass fiber muscle is a kind ofly to take resin as matrix material, and alkali-free glass fibre is main reinforcing material, and that by pultrusion molding process, makes has a corrosion resistant new material of high-strength light.Glass fiber muscle anchor pole is very fast as a kind of novel slope retaining anchor pole development, in mine, slope retaining, obtains certain application 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 due to the horizontal shear resistance of fiber bar than the horizontal shear resistance of plain bars anchor pole very a little less than, as adopt existing reinforced anchor bolt prestressing force charger, the transverse shearing force that its fixture produces can make glass fiber muscle anchor pole that horizontal shear failure occurs, cause glass fiber muscle anchor rod prestress cannot load or 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 muscle anchor pole, and this device can not produce shear failure to anchor pole when applying prestressing force, can effectively to side slope glass fiber muscle anchor pole, provide accurate prestressing force; And be easy to dismounting, energy Reusability, be conducive to use in ungetable mountain area side slope.
The present invention is that to realize the technical scheme that its goal of the invention adopts be that a kind of prestressing force charger for glass fiber muscle anchor pole, is characterized in that:
In the anchoring platform anchor hole of side slope glass fiber muscle anchor pole, be sheathed with steel sleeve, the inwall of steel sleeve and side slope glass fiber muscle anchor pole 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 after passing the lower loaded plate that is embedded in anchoring platform upper surface; Lower connecting rod position above lower loaded plate locking nut that has been threaded;
The upper end of upper connecting rod is passed upper loaded plate and is 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 muscle anchor pole, the inwall of steel sleeve and side slope glass fiber muscle anchor pole pass through epoxy bond.
The degree of depth that is threaded that regulates four counter-force bar screw threads and lower loaded plate, makes loaded plate vertical with upper and lower connecting rod and side slope glass fiber muscle 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 muscle anchor poles, when stretching force reaches design load, tighten locking nut, the prestressing force of anchor pole loads anchor pole and completes and be fixed.
After loading completes, to jack pressure release, remove successively jack, upper connecting rod, upper loaded plate and counter-force bar; The parts that remove can supply Reusability.
Compared with prior art, the invention has the beneficial effects as follows:
One, the steel sleeve by inwall and glass fiber muscle anchor pole epoxy bond transmits axial prestress to anchor pole, and than passing through fixture clamping glass fiber anchor rod, anchor pole shearing force reduces greatly, almost nil; By four counter-force bars and the depth of thread thereof, regulate and can guarantee that loaded plate is vertical with glass fiber anchor pole simultaneously, thereby while guaranteeing to apply prestressing force, do not produce transverse shearing force, can not produce shear failure to anchor pole, solve the problem that jack can not direct drawing glass fiber anchor pole.
Two, steel sleeve and glass fiber anchor pole are bonding solid and reliable, when avoiding that anchor pole is produced to cross shear, have also avoided the slippage between glass fiber anchor pole and steel sleeve, and prestressing force loads accurately.
Three, between steel sleeve and anchor pole, be that bonding, remaining part is and is threaded, install the dismounting that is easy to easy for installation; The parts such as upper connecting rod, upper loaded plate, counter-force bar all can Reusability; Be conducive to use 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.
The specific embodiment
Embodiment
Fig. 1 illustrates, a kind of specific embodiment of the present invention, and a kind of prestressing force charger for glass fiber muscle anchor pole, is characterized in that:
In anchoring platform 1 anchor hole of side slope glass fiber muscle anchor pole 13, be sheathed with steel sleeve 2, the inwall of steel sleeve 2 and side slope glass fiber muscle anchor pole 13 bond 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 that is embedded in anchoring platform 1 upper surface is rear; Lower connecting rod 6 position above lower loaded plate 3 locking nut 4 that has been threaded;
The upper end of upper connecting rod 10 through upper loaded plate 8 and with after hollow hydraulic jack 9, be connected with hold-down nut 12;
Upper loaded plate 8 is fixed on lower loaded plate 3 by four counter-force bar 5 screw threads.
This routine upper connecting rod 10 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 muscle anchor pole, it is characterized in that:
In anchoring platform (1) anchor hole of side slope glass fiber muscle anchor pole (13), be sheathed with steel sleeve (2), the inwall of steel sleeve (2) and side slope glass fiber muscle anchor pole (13) are by epoxy resin (15) bonding;
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) that is embedded in anchoring platform (1) upper surface is rear; Lower connecting rod (6) locking nut (4) that has been threaded at position, lower loaded plate (3) top;
The upper end of upper connecting rod (10) is connected with hold-down nut (12) through upper loaded plate (8) and with after hollow hydraulic jack (9);
Upper loaded plate (8) is fixed on lower loaded plate (3) by four counter-force bars (5) screw thread.
2. a kind of prestressing force charger for glass fiber muscle 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 |
Publications (2)
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| CN103628477A true CN103628477A (en) | 2014-03-12 |
| CN103628477B CN103628477B (en) | 2015-09-30 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004615A (en) * | 2015-08-10 | 2015-10-28 | 河南理工大学 | Device with telescopic base for improving drawing testing effect of coal road anchor rod |
| 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 |
| CN106193615A (en) * | 2016-08-30 | 2016-12-07 | 安徽建工集团有限公司 | A kind of glass fiber-reinforced polymer prestressed anti-floating anchor rod charger and construction method thereof |
| CN106223368A (en) * | 2016-08-30 | 2016-12-14 | 安徽建工集团有限公司 | Glass fibre prestressed anchor anchor structure, its charger and loading method |
| CN109736304A (en) * | 2019-01-14 | 2019-05-10 | 江苏东合南岩土科技股份有限公司 | The construction method of glass multiple anchor cable muscle, glass multiple anchor cable and anchor pole |
| CN110725210A (en) * | 2019-05-01 | 2020-01-24 | 河南交院工程技术有限公司 | Inhaul cable stepping tensioning construction method and tensioning equipment |
| 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 |
| 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 |
| 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 |
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| 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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| CN200985797Y (en) * | 2006-07-28 | 2007-12-05 | 北京中煤矿山工程有限公司 | Anchor rod preloader |
| US20100055970A1 (en) * | 2007-03-02 | 2010-03-04 | Karl Johan Lars Elsmark | Connector plug for a multi-conductor cable with tension load transferring means |
| CN202148913U (en) * | 2011-07-28 | 2012-02-22 | 湖南科技大学 | Anchor rod pretightening device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004615A (en) * | 2015-08-10 | 2015-10-28 | 河南理工大学 | Device with telescopic base for improving drawing testing effect of coal road anchor rod |
| 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 |
| CN106193615A (en) * | 2016-08-30 | 2016-12-07 | 安徽建工集团有限公司 | A kind of glass fiber-reinforced polymer prestressed anti-floating anchor rod charger and construction method thereof |
| CN106223368A (en) * | 2016-08-30 | 2016-12-14 | 安徽建工集团有限公司 | Glass fibre prestressed anchor anchor structure, its charger and loading method |
| CN109736304A (en) * | 2019-01-14 | 2019-05-10 | 江苏东合南岩土科技股份有限公司 | The construction method of glass multiple anchor cable muscle, glass multiple anchor cable and anchor pole |
| 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 |
| CN110725210A (en) * | 2019-05-01 | 2020-01-24 | 河南交院工程技术有限公司 | Inhaul cable stepping tensioning construction method and tensioning equipment |
| 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 |
| 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 |
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|---|---|
| CN103628477B (en) | 2015-09-30 |
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