CN201459776U - Rock slope prestress anchorage cable detection tensioning device - Google Patents
Rock slope prestress anchorage cable detection tensioning device Download PDFInfo
- Publication number
- CN201459776U CN201459776U CN2009201281011U CN200920128101U CN201459776U CN 201459776 U CN201459776 U CN 201459776U CN 2009201281011 U CN2009201281011 U CN 2009201281011U CN 200920128101 U CN200920128101 U CN 200920128101U CN 201459776 U CN201459776 U CN 201459776U
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- prestress anchorage
- rock slope
- cable
- anchorage cable
- rock
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Abstract
The utility model discloses a rock slope prestress anchorage cable detection tensioning device comprising two transverse force transferring components. Bridging steel plates (2) with mounting holes (1) are placed on the two transverse force transferring components; a substrate is arranged below the two transverse force transferring components; and the substrates are provided with bar dowels (3) used for being attached to the transverse force transferring components. The utility model has the advantage that the stress detection condition is more reasonable, and meanwhile, the utility model also has the advantages of simple structure and convenient operation and repeated use.
Description
Technical field
The utility model relates to a kind of rock slope prestress anchorage cable checkout gear, and particularly a kind of rock slope prestress anchorage cable detects tensioning equipment.
Background technology
The prestress anchorage cable technology is one of technology the most frequently used in the geotechnical engineering, is widely used in slope anchorage, fields such as underground engineering support.Wherein, the prestress anchorage cable on the rock slope uses more, and its chief component comprises anchor hole, mortar anchoring body, concrete anchor pier, ground tackle, steel strand etc.During construction, on rock slope, hole earlier, again the anchor cable steel strand are put into the hole, in the hole, irritate mortar, mortar bonds together the steel strand of anchoring section and crag, after treating that mortar reaches intensity, put on the shelf at the concrete anchor pier and to establish punching jack tension anchor cable, with anchor clipper anchor cable is locked after reaching the tensile load of design.Prestress anchorage cable links together unsettled slope rock mass and stable parent rock, to play the effect of stablizing rock slope.In order to ensure the operate as normal of prestress anchorage cable, each engineering all needs by code requirement a part of anchor cable to be detected.When detecting anchorage cable stretching, require to reach the tensile load higher than design load, and the phenomenon destroyed do not occur, this is the key link of anchor cable quality control.
At present, general direct when anchor cable detects jack stand is carried out on the concrete anchor pier at anchor hole place, uneasy clamping sheet waits to detect and finishes back off-load fully earlier, and intermediate plate is installed again, and stretch-draw locks after design load again.Mainly there is the problem of two aspects in such detection method: because the concrete anchor pier is built just in time outside anchor hole, the pressure of jack directly acts on the rock of aperture, transmit in the Xiang Yanpo, rock mass stress field to anchoring section produces certain interference, when anchor cable is worked, stress condition when the separation trend between unstable rock mass and the rock mass stability makes anchoring section work stress condition with detection is not quite identical, has potential risks; On the other hand, the work ground tackle on the jack has been sealed the aperture, and the outside displacement of mortar body is prevented from, and is loosening when anchor cable, and in the time of may producing big displacement, this detection mode can't detect.
Summary of the invention
The purpose of this utility model is to provide a kind of rock slope prestress anchorage cable of accurate detection anchor cable stress performance to detect tensioning equipment.It can make the detection stress condition more reasonable, to eliminate potential danger.
The purpose of this utility model is to realize by such technical scheme: a kind of rock slope prestress anchorage cable detects tensioning equipment, and it comprises:
Two pass force crossly members;
Placed the bridging steel plate that has installing hole on two pass force crossly members;
Two pass force crossly member belows are provided with pedestal, and pedestal is provided with the bar dowel that is used to be affiliated to the pass force crossly member.
Be specially, described pass force crossly member is an i-beam frame.
The utility model is like this work: the both sides that at first concrete pier base and anchor pole are embedded in advance anchor cable, then i-beam frame is affiliated on bar dowel, again the installing hole of bridging steel plate by itself temporarily hung on the anchor cable, at last jack stand is located on the bridging steel plate.When jack is exerted oneself tension the counter-force load is passed to i-beam frame by the bridging steel plate, i-beam frame is delivered to counter-force on the pedestal again, by pedestal counter-force is passed to the rock stratum at last.
The mating holes of the bar dowel on two ends, described i-beam frame bottom and the pedestal is a strip hole, its objective is when slight deviations occurring for the position when bar dowel, still can insert in the strip hole easily.
Described pedestal comprises the concrete pier base that is arranged at tested anchor cable periphery and is arranged at the anchor pole of concrete pier base below that described bar dowel is embedded in the upper surface of concrete pier base.
During being arranged on, anchor pole in the weathered rock formation, in the weathered rock formation, avoid concrete pier base directly counter-force all to be passed to the damage that severely-weathered rock stratum causes the rock stratum during the counter-force that concrete pier base is subjected to is delivered to by little anchor pole.
Distance between the described two parallel i-beam frames is greater than the aperture of tested anchor cable.Purpose is to prevent from outer the moving of mortar body produced obstruction.
Owing to adopted technique scheme, the utlity model has advantage simple in structure, easy to operate, repeatedly used, simultaneously, it also has following advantage:
Since the distance between two i-beam frames greater than the anchor cable aperture, simultaneously, the height of i-beam frame is bigger, what make anchor cable and mortar body like this moves unrestrictedly outward, has reflected the load-displacement mechanical property of anchoring section truly;
2. adopt bar dowel to make things convenient for the workman that i-beam frame is hung on the concrete pier base, workman's handling safety is quick;
3. adopt anchor pole can pass severely-weathered layer, avoid concrete pier base directly pressure all to be passed to the damage that severely-weathered rock stratum causes the rock stratum;
4. the employing strip hole can make i-beam frame adapt to the slight position deviation of bar dowel.
Description of drawings
Description of drawings of the present utility model is as follows:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Embodiment: as shown in Figure 1, 2, a kind of rock slope prestress anchorage cable detects tensioning equipment, and it comprises two pass force crossly members; Be placed with the bridging steel plate 2 that has installing hole 1 on two pass force crossly members; Two pass force crossly member belows are provided with pedestal, and pedestal is provided with the bar dowel 3 that is used to be affiliated to the pass force crossly member, and wherein, described pass force crossly member is an i-beam frame 4.
The mating holes 5 of the bar dowel 3 on described i-beam frame two ends, 4 bottom and the pedestal is a strip hole.
Described pedestal comprises concrete pier base 6 that is arranged at tested anchor cable both sides and the anchor pole 7 that is arranged at concrete pier base 6 belows; Described bar dowel 3 is arranged on the upper surface of concrete pier base 6.
Wherein, anchor pole 7 is arranged in the middle weathered rock formation.
Distance between the described two parallel i-beam frames 4 is greater than the aperture of tested anchor cable.
The utility model is like this work: the both sides that at first concrete pier base 6 and anchor pole 7 are embedded in advance anchor cable 8, then i-beam frame 4 is affiliated on bar dowel 3, again the installing hole 1 of bridging steel plate 2 by itself temporarily hung on the anchor cable 8, at last jack 9 is erected on the bridging steel plate 2.When jack 9 is exerted oneself tension the counter-force load is passed to i-beam frame 4 by bridging steel plate 2, i-beam frame 4 is delivered to counter-force on the concrete pier base 6 again, and concrete pier base 6 passes to anchor pole 7 with counter-force, by anchor pole 7 counter-force is passed to the rock stratum at last.
In the utility model, the concrete pier base 6 between adjacent anchor cable can be shared, and i-beam frame 4 also can use repeatedly, has reduced the detection cost.
Claims (7)
1. a rock slope prestress anchorage cable detects tensioning equipment, and it is characterized in that: it comprises
Two pass force crossly members;
Be placed with the bridging steel plate (2) that has installing hole (1) on two pass force crossly members;
Two pass force crossly member belows are provided with pedestal, and pedestal is provided with the bar dowel (3) that is used to be affiliated to the pass force crossly member.
2. rock slope prestress anchorage cable as claimed in claim 1 detects tensioning equipment, and it is characterized in that: described pass force crossly member is i-beam frame (4).
3. rock slope prestress anchorage cable as claimed in claim 2 detects tensioning equipment, and it is characterized in that: the mating holes (5) of the bar dowel (3) on described i-beam frame (4) two ends, bottom and the pedestal is a strip hole.
4. detect tensioning equipment as claim 1,2 or 3 described rock slope prestress anchorage cables, it is characterized in that: described pedestal comprises the concrete pier base (6) that is arranged at tested anchor cable both sides and is arranged at the anchor pole (7) of concrete pier base (6) below; Described bar dowel (3) is arranged on the upper surface of concrete pier base (6).
5. rock slope prestress anchorage cable as claimed in claim 4 detects tensioning equipment, it is characterized in that: anchor pole (7) is arranged in the middle weathered rock formation.
6. detect tensioning equipments as claim 1,2 or 3 described rock slope prestress anchorage cables, it is characterized in that: the distance between the described two parallel i-beam frames (4) is greater than the aperture of tested anchor cable.
7. rock slope prestress anchorage cable as claimed in claim 5 detects tensioning equipment, it is characterized in that: the distance between the described two parallel i-beam frames (4) is greater than the aperture of tested anchor cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201281011U CN201459776U (en) | 2009-07-20 | 2009-07-20 | Rock slope prestress anchorage cable detection tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201281011U CN201459776U (en) | 2009-07-20 | 2009-07-20 | Rock slope prestress anchorage cable detection tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201459776U true CN201459776U (en) | 2010-05-12 |
Family
ID=42387129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201281011U Expired - Fee Related CN201459776U (en) | 2009-07-20 | 2009-07-20 | Rock slope prestress anchorage cable detection tensioning device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201459776U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182196A (en) * | 2011-03-28 | 2011-09-14 | 北京鑫实路桥建设有限公司 | Reverse circulation grouting anchor rod reinforcing method for road rock side slope |
| CN102392443A (en) * | 2011-10-19 | 2012-03-28 | 山东科技大学 | Construction technique for high-slope pressure-dispersed pre-stressed anchor cable |
| CN102677710A (en) * | 2012-05-27 | 2012-09-19 | 上海岩土工程勘察设计研究院有限公司 | Reaction frame testing method for earth nail drawing tests |
| CN102953378A (en) * | 2012-12-06 | 2013-03-06 | 中铁四局集团有限公司 | Single-hole and double-beam prestressed anchor tensioning device |
| CN103015416A (en) * | 2012-12-11 | 2013-04-03 | 中铁西北科学研究院有限公司勘察设计分公司 | Anchor cable-pretensioned reaction force device and implementation method of same |
-
2009
- 2009-07-20 CN CN2009201281011U patent/CN201459776U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182196A (en) * | 2011-03-28 | 2011-09-14 | 北京鑫实路桥建设有限公司 | Reverse circulation grouting anchor rod reinforcing method for road rock side slope |
| CN102392443A (en) * | 2011-10-19 | 2012-03-28 | 山东科技大学 | Construction technique for high-slope pressure-dispersed pre-stressed anchor cable |
| CN102677710A (en) * | 2012-05-27 | 2012-09-19 | 上海岩土工程勘察设计研究院有限公司 | Reaction frame testing method for earth nail drawing tests |
| CN102677710B (en) * | 2012-05-27 | 2015-04-29 | 上海岩土工程勘察设计研究院有限公司 | Reaction frame testing method for earth nail drawing tests |
| CN102953378A (en) * | 2012-12-06 | 2013-03-06 | 中铁四局集团有限公司 | Single-hole and double-beam prestressed anchor tensioning device |
| CN103015416A (en) * | 2012-12-11 | 2013-04-03 | 中铁西北科学研究院有限公司勘察设计分公司 | Anchor cable-pretensioned reaction force device and implementation method of same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120720 |