CN201459721U - Split crack slurry filling prestress anchor wire device - Google Patents
Split crack slurry filling prestress anchor wire device Download PDFInfo
- Publication number
- CN201459721U CN201459721U CN2009201089695U CN200920108969U CN201459721U CN 201459721 U CN201459721 U CN 201459721U CN 2009201089695 U CN2009201089695 U CN 2009201089695U CN 200920108969 U CN200920108969 U CN 200920108969U CN 201459721 U CN201459721 U CN 201459721U
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- fracture grouting
- fracture
- pipe
- keeper
- slurry filling
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Abstract
The utility model relates to a split crack slurry filling prestress anchor wire device, which comprises a anchor wire material, a positioning element, a static pressure slurry filling pipe and a split crack slurry filling pipe, wherein the split crack slurry filling pipe is arranged on the outer side of the positioning element, the middle of the positioning element is in a circular shape, the outer periphery is provided with a support frame used for fixing or positioning the anchor wire material and the split crack slurry filling pipe, and the center of the positioning element is provided with the static pressure slurry filling pipe for filling cement mortar. After being adopted, the device can effectively enlarge the contact area of the anchoring section slurry body and the rock and soil body, can also improve the shearing resistance intensity of the contact surface of the anchoring section slurry body and the rock and soil body, can still improve the physical mechanical characteristics of the rock and soil body around the anchoring section, increases the embedding and fixing effect of the anchoring section, and thus greatly increases the anchoring force. The technology has the characteristics of low investment, obvious effect, simple process, easy popularization and application and the like.
Description
Technical field
The utility model relates to a kind of fracture grouting prestress anchorage cable device, belongs to the prestress anchoraging technical field of construction.
Background technology
In prestress anchorage cable (anchor pole) engineering is used, tend to run into prestress anchorage cable (anchor pole) anchored force deficiency, particularly under soft stratum, unfavorable geology and soil layer condition, apply prestress anchorage cable (anchor pole).
From the theory analysis of relevant raising anchored force as can be known, the approach that improves prestress anchorage cable (anchor pole) anchored force has three kinds of modes, promptly increases the contact area of anchoring section slurry and geotechnical body, the shear strength r that improves slurry and geotechnical body contact surface and lengthening anchoring section length L.But theory analysis and engineering experience all show, lengthening anchoring section length L is to improving the DeGrain of anchored force,
So, need to adopt the construction technology that a kind of effect is obvious, technology simple and be easy to apply effectively to increase the contact area of anchoring section slurry and geotechnical body or the shear strength r of raising anchoring section slurry and geotechnical body contact surface, thereby solve the not enough problems of some formation condition lower prestress anchor cable (anchor pole) anchored force.
The utility model content
In order to overcome the problems referred to above, the utility model proposes a kind of fracture grouting prestress anchorage cable device, it can effectively improve the anchored force of prestress anchorage cable (anchor pole).Adopt this device only to need the prestress anchorage cable (anchor pole) of conventional job practices is increased together simple fracture grouting process procedure, can enlarge and strengthen the anchoring body system from many aspects, comprise the contact area of effective increase anchoring section slurry and geotechnical body and these two importances of shear strength r of raising slurry and geotechnical body contact surface, thereby can obviously increase anchored force.
Its concrete technical scheme is as follows:
A kind of fracture grouting prestress anchorage cable device of the present utility model, comprise anchor cable material, keeper and static pressure grouting pipe, it is characterized in that: also comprise the fracture grouting pipe, the fracture grouting pipe is arranged at the outside of keeper, rounded in the middle of the described keeper, periphery is useful on carriage fixing or location anchor cable material and fracture grouting pipe, and the keeper center is provided with the static pressure grouting pipe.
Described fracture grouting prestress anchorage cable device is characterized in that: described fracture grouting pipe is a round steel pipe, is symmetricly set in the keeper both sides by the carriage in the keeper.
Described fracture grouting prestress anchorage cable device is characterized in that: evenly be provided with the fracture grouting hole on the fracture grouting pipe circumference, the fracture grouting hole is arranged in 3 rows and is the blossom type layout along the axial direction of fracture grouting pipe.
Described fracture grouting prestress anchorage cable device is characterized in that: fracture grouting pipe outer end adopts flexible pipe to be connected with grouting pump.
This fracture grouting prestress anchorage cable device solves the problem of the anchorage force of pre-stressed anchor cable deficiency of conventional job practices under some formation conditions, particularly under soft stratum, unfavorable geology and soil layer condition, apply prestress anchorage cable.In general, adopt this technology that the anchored force of the prestress anchorage cable of conventional job practices can be improved more than 2 times at least, this technology has the few and characteristics such as effect is obvious, technology simple and be easy to apply of people of throwing simultaneously.
Description of drawings
Fig. 1 is the elevational schematic view of prestress anchorage cable of the present utility model (anchor pole).
Fig. 2 is the 1-1 schematic cross-sectional view of prestress anchorage cable of the present utility model (anchor pole).
Fig. 3 is a fracture grouting pipe drawing of the present utility model.
Fig. 4 is a fracture grouting pipe cross-sectional drawing of the present utility model.
Among the figure: 1---prestress anchorage cable; 2---cement mortar; 3---the prestress anchorage cable hole; 4---fracture grouting equivalence circumference; 5---geotechnical body; 6---reinforce domatic; 11---the anchor cable material; 12---keeper; 13---the static pressure grouting pipe; 14---the fracture grouting pipe; 15---the fracture grouting hole; 21---the static pressure grouting scope; 22---the fracture grouting equivalent scope; The length overall of L---prestress anchorage cable; The free segment length of L1---prestress anchorage cable; The anchoring segment length of L2---prestress anchorage cable; L3---fracture grouting length; D1---prestress anchorage cable bore dia; D2---fracture grouting equivalent diameter; D1---fracture grouting bore; D2---fracture grouting external diameter of pipe; A---fracture grouting pitch of holes.
The specific embodiment
Below in conjunction with accompanying drawing to the utility model to specifying:
Parameter is determined: adopt this technology at first in conjunction with design drawing, determine construction parameter by on-the-spot test process optimization then, specifically comprise: the blanking time and the fracture grouting material of the radical of fracture grouting pipe 14, inner diameter d 1 and outside diameter d 2, fracture grouting pitch of holes a, fracture grouting pressure and fracture grouting and static pressure grouting, prestress anchorage cable (anchor pole) bore dia D1, static pressure grouting pressure and material, parameters such as fracture grouting length range l1.
Shown in Fig. 1-4, in preferred embodiment: fracture grouting prestress anchorage cable device comprises anchor cable material 11, keeper 12 and static pressure grouting pipe 13, it is characterized in that: comprise that also fracture grouting pipe 14 is used for cement injection mortar 2, fracture grouting pipe 14 is arranged at the outside of keeper 12, rounded in the middle of the keeper 12, periphery is useful on carriage fixing or location anchor cable material and fracture grouting pipe, and keeper 12 centers are provided with static pressure grouting pipe 13 and are used for cement injection mortar 2.Fracture grouting pipe 14 is 2 round steel pipes, and internal diameter 2cm is symmetricly set in keeper 12 both sides by the carriage in the keeper 12.Evenly be provided with fracture grouting hole 15 on fracture grouting pipe 14 circumference, fracture grouting hole 15 is arranged in 3 rows and is the blossom type layout along the axial direction of fracture grouting pipe 14, and the aperture in fracture grouting hole 15 is 6mm, and the spacing between each fracture grouting hole 15 is 50mm.Fracture grouting pipe 14 outer ends adopt flexible pipe to be connected (not looking out among the figure) with grouting pump.The M30 cement mortar is adopted in static(al) slip casting, treats to carry out fracture grouting after the initial set of static(al) slip casting slurry; The fracture grouting material also adopts the M30 cement mortar, and grouting pressure is then determined according to on-the-spot test process.
Concrete implementation step:
One,, tentatively drafts on-the-spot test process parameter in conjunction with design drawing.
Two, carry out on-the-spot test process, optimize and determine construction parameter.
Three, processing fracture grouting pipe.
Three, prestress anchorage cable (anchor pole) construction technology prestress anchorage cable (anchor pole) construction routinely, but in prestress anchorage cable (anchor pole) process, increase the fracture grouting pipe.
Four, static pressure grouting.
Five, fracture grouting.
Six, other operations are with conventional prestress anchorage cable (anchor pole) construction technology.
Claims (4)
1. fracture grouting prestress anchorage cable device, comprise anchor cable material, keeper and static pressure grouting pipe, it is characterized in that: also comprise the fracture grouting pipe, the fracture grouting pipe is arranged at the outside of keeper, rounded in the middle of the described keeper, periphery is useful on carriage fixing or location anchor cable material and fracture grouting pipe, and the keeper center is provided with the static pressure grouting pipe.
2. fracture grouting prestress anchorage cable device as claimed in claim 1 is characterized in that: described fracture grouting pipe is a round steel pipe, is symmetricly set in the keeper both sides by the carriage in the keeper.
3. fracture grouting prestress anchorage cable device as claimed in claim 2 is characterized in that: evenly be provided with the fracture grouting hole on the fracture grouting pipe circumference, the fracture grouting hole is arranged in 3 rows and is the blossom type layout along the axial direction of fracture grouting pipe.
4. fracture grouting prestress anchorage cable device as claimed in claim 3 is characterized in that: fracture grouting pipe outer end adopts flexible pipe to be connected with grouting pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201089695U CN201459721U (en) | 2009-06-05 | 2009-06-05 | Split crack slurry filling prestress anchor wire device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201089695U CN201459721U (en) | 2009-06-05 | 2009-06-05 | Split crack slurry filling prestress anchor wire device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201459721U true CN201459721U (en) | 2010-05-12 |
Family
ID=42387074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201089695U Expired - Lifetime CN201459721U (en) | 2009-06-05 | 2009-06-05 | Split crack slurry filling prestress anchor wire device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201459721U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917407A (en) * | 2017-04-14 | 2017-07-04 | 北京科技大学 | A kind of combined prestressing force anchor cable for lifting anchor structure shear behavior |
| CN111119174A (en) * | 2019-12-31 | 2020-05-08 | 中交路桥建设有限公司 | Prestressed anchor cable structure for repeated splitting grouting and construction method thereof |
-
2009
- 2009-06-05 CN CN2009201089695U patent/CN201459721U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917407A (en) * | 2017-04-14 | 2017-07-04 | 北京科技大学 | A kind of combined prestressing force anchor cable for lifting anchor structure shear behavior |
| CN111119174A (en) * | 2019-12-31 | 2020-05-08 | 中交路桥建设有限公司 | Prestressed anchor cable structure for repeated splitting grouting and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |