CN204510209U - Secondary grouting prestress anchorage cable - Google Patents
Secondary grouting prestress anchorage cable Download PDFInfo
- Publication number
- CN204510209U CN204510209U CN201420661710.4U CN201420661710U CN204510209U CN 204510209 U CN204510209 U CN 204510209U CN 201420661710 U CN201420661710 U CN 201420661710U CN 204510209 U CN204510209 U CN 204510209U
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- CN
- China
- Prior art keywords
- cable
- anchorage cable
- pressure slip
- prestress anchorage
- casting
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Abstract
The utility model relates to a kind of prestress anchorage cable, is specifically related to a kind of secondary grouting prestress anchorage cable, belongs to slope body stabilization works instrument field.The utility model comprises prestress anchorage cable, and on anchor cable body, binding has a Grouting Pipe, and on prestressed anchor cable body, also binding has an other high-pressure slip-casting pipe, and the duct wall of the high-pressure slip-casting pipe in prestressed cable anchorage segment limit is provided with some injected holes; Injected hole is quincunx distribution, spacing 100mm, aperture 5mm.By some injected holes that newly-increased high-pressure slip-casting pipe and its duct wall in anchorage cable anchoring segment limit are arranged, secondary high-pressure slip-casting is carried out to anchorage cable anchoring section Rock And Soil, anchorage cable anchoring section Rock And Soil shear resistance is improved greatly, effectively can improve the prestressed stretch-draw of anchor cable stabilization works, and then effectively improve the stability on side slope or landslide.Safety factor is high, short construction period, cost are low, and prestress anchorage cable can extensively be used at the Rock And Soil that formation lithology is poor.
Description
Technical field
The utility model relates to a kind of prestress anchorage cable, is specifically related to a kind of secondary grouting prestress anchorage cable, belongs to slope body stabilization works instrument field.
Background technology
In the body stabilization works construction process of slope, often can run into the poor Rock And Soil of formation lithology, as silty clay, coal seam, expansive soil or underground water grow Rock And Soil.Because these Rock And Soil shear strengths are low, make the anchored force of prestress anchorage cable reach designing requirement, cause prestress anchorage cable effectively cannot use in these Rock And Soils, thus limit the scope of application of anchor cable.
Therefore the shear resistance of the poor Rock And Soil of these formation lithologies need be increased, improve the anchored force of anchor cable, prestress anchorage cable can extensively be used at the Rock And Soil that formation lithology is poor.
Utility model content
The purpose of this utility model is just to provide a kind of secondary grouting prestress anchorage cable to solve the problem, by carrying out secondary high-pressure slip-casting to anchorage cable anchoring section Rock And Soil, increase the shear strength of anchorage cable anchoring section Rock And Soil, effectively can improve the anchored force of prestress anchorage cable, prestress anchorage cable can extensively be used at the Rock And Soil that formation lithology is poor.
The utility model is achieved through the following technical solutions above-mentioned purpose:
Secondary grouting prestress anchorage cable, comprise prestress anchorage cable, on anchor cable body, binding has a Grouting Pipe, it is characterized in that, on prestressed anchor cable body, also binding has an other high-pressure slip-casting pipe, and the duct wall of the high-pressure slip-casting pipe in prestressed cable anchorage segment limit is provided with some injected holes.
Further, the injected hole that the duct wall of the high-pressure slip-casting pipe in described prestressed cable anchorage segment limit is arranged is quincunx distribution, spacing 100mm, aperture 5mm.
Further, described high-pressure slip-casting pipe adopts coating steel pipe to make.
The beneficial effects of the utility model are:
The some injected holes of the utility model by newly-increased high-pressure slip-casting pipe and its duct wall within the scope of the anchoring section of anchor cable are arranged, secondary high-pressure slip-casting is carried out to anchorage cable anchoring section Rock And Soil, anchorage cable anchoring section Rock And Soil shear resistance is improved greatly, effectively improve the anchoring in rock and soil performance of anchorage cable anchoring section, effectively can improve the prestressed stretch-draw of anchor cable stabilization works, and then effectively improve the stability on side slope or landslide, there is safety factor high, short construction period, low cost and other advantages, prestress anchorage cable can extensively be used at the Rock And Soil that formation lithology is poor.
Accompanying drawing explanation
Accompanying drawing 1 is result schematic diagram of the present utility model;
Accompanying drawing 2 is the utility model high-pressure slip-casting pipe and injected hole distributed architecture close-up schematic view.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in drawings: the utility model is by the high-pressure slip-casting pipe increased newly and the some injected holes arranged in the anchoring section scope inner duct wall of anchor cable, secondary high-pressure slip-casting is carried out to anchorage cable anchoring section Rock And Soil, anchorage cable anchoring section Rock And Soil shear resistance is improved greatly, effectively improve the anchoring in rock and soil performance of anchorage cable anchoring section, effectively can improve the prestressing force of anchor cable stabilization works, and then effectively improve the stability on side slope or landslide, there is safety factor high, short construction period, low cost and other advantages, prestress anchorage cable can extensively be used at the Rock And Soil that formation lithology is poor.
The utility model is specially adapted to the anchorage cable engineering of formation lithology difference (as the side slope etc. that silty clay, coal seam, expansive soil or underground water are grown).Anchor cable adopts 15.24mm, high strength, the common steel strand manufacturing of underrelaxation, and steel strand intensity is f
pk=1860MPa; When making anchor cable, steel strand length comparatively should increase 1.5m anchor head stretch-draw section by design length, and spiral bar near being positioned over anchor pad bottom, must being forbidden to throw off and placing.
Need before slip casting to block at the bottom of all injected holes in anchorage cable anchoring segment limit inner duct wall and pipe with two layers of engineering adhesive plaster, prevent slurry during first time slip casting from entering, the high-pressure slip-casting pipe of blocking secondary high-pressure slip-casting and cause secondary grouting to implement.
First on the body of slope, after machine drilling, in hole, the anchor cable being banded with once common Grouting Pipe and secondary high-pressure slip-casting pipe is put into.
First time slip casting: first time slip casting is injected from common Grouting Pipe, common Grouting Pipe adopts 22PVC pipe to make, and only reserves slurry outlet at pipe end.Adopt at the bottom of hole and return slurry slip casting method, forbid to pull out Grouting Pipe, to play the effect for secondary high-pressure slip-casting sealing of hole.
Second time slip casting: second time slip casting is injected from high-pressure slip-casting pipe, high-pressure slip-casting pipe adopts 22 coating steel pipes to make, and the duct wall within the scope of the anchoring section of anchor cable is provided with some injected holes, aperture 5mm, spacing 100mm, in quincunx distribution.After first time slip casting 2 hours bleeding, adopt M30 neat slurry to carry out high-pressure slip-casting to anchoring section, grouting pressure should not be less than 1.5MPa.The two layer engineering adhesive plaster of shutoff on injected hole can be washed open by high pressure.
Twice slip casting is complete after slurries shrink, and benefit slurry should be carried out in aperture, mends slurry and adopts M30 cement mortar.
After anchor cable secondary grouting completes 28 days, can be used for normal prestressd anchor cable stretch-draw.
Above-mentioned detailed description of the invention is preferred embodiment of the present utility model; can not limit the utility model; other is any does not deviate from the technical solution of the utility model and the substitute mode of the change made or other equivalence, is included within protection domain of the present utility model.
Claims (3)
1. secondary grouting prestress anchorage cable, comprise prestress anchorage cable, on anchor cable body, binding has a Grouting Pipe, it is characterized in that, on prestressed anchor cable body (1), also binding has an other high-pressure slip-casting pipe (2), and the duct wall of the high-pressure slip-casting pipe (2) in prestressed cable anchorage segment limit is provided with some injected holes (3).
2. a kind of secondary grouting prestress anchorage cable according to claim 1, is characterized in that, described injected hole (3) distribute spacing 100mm, aperture 5mm.
3. a kind of secondary grouting prestress anchorage cable according to claim 1, is characterized in that, described high-pressure slip-casting pipe (2) adopts coating steel pipe to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661710.4U CN204510209U (en) | 2014-11-07 | 2014-11-07 | Secondary grouting prestress anchorage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661710.4U CN204510209U (en) | 2014-11-07 | 2014-11-07 | Secondary grouting prestress anchorage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204510209U true CN204510209U (en) | 2015-07-29 |
Family
ID=53708201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420661710.4U Expired - Fee Related CN204510209U (en) | 2014-11-07 | 2014-11-07 | Secondary grouting prestress anchorage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204510209U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973559A (en) * | 2016-07-04 | 2016-09-28 | 青岛建集团有限公司 | Motor train unit body colliding rigid wall test platform system |
| CN112326942A (en) * | 2020-10-29 | 2021-02-05 | 中国核工业华兴建设有限公司 | Device and method for testing bleeding and volume stability of cement slurry |
| WO2022007695A1 (en) * | 2020-07-06 | 2022-01-13 | 青岛理工大学 | Pre-stressed anchor cable expandable inner anchor head |
-
2014
- 2014-11-07 CN CN201420661710.4U patent/CN204510209U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973559A (en) * | 2016-07-04 | 2016-09-28 | 青岛建集团有限公司 | Motor train unit body colliding rigid wall test platform system |
| CN105973559B (en) * | 2016-07-04 | 2018-11-20 | 青岛一建集团有限公司 | Motor train unit body hits rigid wall testing platform system |
| WO2022007695A1 (en) * | 2020-07-06 | 2022-01-13 | 青岛理工大学 | Pre-stressed anchor cable expandable inner anchor head |
| CN112326942A (en) * | 2020-10-29 | 2021-02-05 | 中国核工业华兴建设有限公司 | Device and method for testing bleeding and volume stability of cement slurry |
| CN112326942B (en) * | 2020-10-29 | 2022-12-09 | 中国核工业华兴建设有限公司 | Device and method for testing bleeding and volume stability of cement slurry |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20171107 |