CN204023569U - A kind of bellows enlarged footing anchor bolt support - Google Patents
A kind of bellows enlarged footing anchor bolt support Download PDFInfo
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- CN204023569U CN204023569U CN201420468099.3U CN201420468099U CN204023569U CN 204023569 U CN204023569 U CN 204023569U CN 201420468099 U CN201420468099 U CN 201420468099U CN 204023569 U CN204023569 U CN 204023569U
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- loaded plate
- nut
- twisted steel
- fining twisted
- flexible pouch
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Abstract
The technical problems to be solved in the utility model is that the loaded plate bottom traditional pressure type anchor rod can not be wrapped up by slurries in slip casting process, and along with the prolongation of service time, the loaded plate be exposed in soil can be corroded.For solving the problem, the utility model provides a kind of bellows enlarged footing anchor bolt support, lower loaded plate there is an injected hole, lower loaded plate is contained on a fining twisted steel, lower loaded plate is cylinder, periphery has annular groove, a nut is also equipped with in the upper end of fining twisted steel, nut is also cylinder, periphery has annular groove, fining twisted steel is also equipped with loaded plate, upper loaded plate is between nut and lower loaded plate, also comprise a flexible pouch, one end of flexible pouch is fixed on nut, the other end of flexible pouch is fixed on lower loaded plate.The utility model adds a built-in loaded plate and namely goes up loaded plate, can not be corroded, and can use as stress point for a long time.
Description
Technical field
The utility model belongs to building operations instrument, particularly relates to a kind of bellows enlarged footing anchor bolt support used when slope retaining.
Background technology
Bolt support is a kind of its support reinforcement mode adopted in the earth's surface engineerings such as side slope, ground deep foundation ditch and the construction of the underground chamber such as tunnel, stope.Roofbolt is made with metalwork, wooden piece, polymer member or other materials, squeeze in earth's surface rock mass or the pre-drilled hole of chamber surrounding rock body, utilize special tectonic and the afterbody supporting plate of its head, the body of rod, or depend on cohesive action and country rock and rock mass stability are combined and produces suspension effectiveness, compound beam effect, reinforcing effect, to reach the object of supporting.Have that cost is low, supporting effect good, easy and simple to handle, use flexibly, take the advantages such as construction headroom is few.This just requires that the prebored hole on Rock And Soil will have enough intensity, anchor bolt support is entered bottom prebored hole smoothly, often there is drift sand or mud in or place that soil property soft complicated in geologic structure, thus make anchor bolt support reach anchoring section, cannot support work be completed.
Pressure type anchor rod is by taking certain quarantine measures to pull bar, the pulling force of anchor head to anchor pole is converted into the pressure to being positioned at anchor pole end bearing body, by the frictional resistance of injecting cement paste and surrounding soil, this pressure is transmitted in the soil body again, thus realize its using function, the dismountable function of pull bar can also be realized.Due to pressure type anchor rod pull bar stressed after by supporting body directly by pull transfer to anchoring body root, make deep soil force and deformation comparatively greatly and superficial part earth stress is less with distortion, and the height of the outside soil layer of frictional resistance of general anchor pole deep soil layer, therefore, in theory, pressure type anchor rod not only can provide higher bearing capacity, and is more conducive to the Deformation control to supporting and protection structure, has the technical performance higher than common tension type anchor pole.But do not note full, quality due to the slurries of injecting cement paste and supporting body junction in Practical Project to be not easy to ensure and to cause injecting cement paste bottom to be damaged by pressure, thus produce sizable anchor head displacement, low bearing capacity, the anchor head displacement of pressure type anchor rod is not only unlike large on the contrary than common tension type anchor pole of common tension type anchor pole little, and the change in displacement of different anchor pole is very large, performance extremely unstable, constrains the application of pressure type anchor rod in Practical Project.In addition, the loaded plate being positioned at anchor pole top is a slip casting dead angle, can not be wrapped up by slurries in slip casting process, so, in the process of practical application, the loaded plate at anchor pole top is exposed in soil, along with the prolongation of service time, surface water in soil and other materials can corrode the loaded plate at anchor pole top, thus make anchor bolt support complete support action.
Summary of the invention
The technical problems to be solved in the utility model is that the loaded plate bottom traditional pressure type anchor rod can not be wrapped up by slurries in slip casting process, and along with the prolongation of service time, the loaded plate be exposed in soil can be corroded.For solving the problem, the utility model provides a kind of bellows enlarged footing anchor bolt support.
The purpose of this utility model realizes in the following manner:
A kind of bellows enlarged footing anchor bolt support, comprise lower loaded plate, lower loaded plate there is an injected hole, it is characterized in that: lower loaded plate is contained on a fining twisted steel, lower loaded plate is cylinder, periphery has annular groove, a nut is also equipped with in the upper end of fining twisted steel, nut is also cylinder, periphery has annular groove, fining twisted steel is also equipped with loaded plate, upper loaded plate is between nut and lower loaded plate, also comprise a flexible pouch, one end of flexible pouch is fixed on nut, the other end of flexible pouch is fixed on lower loaded plate.
In the bottom of fining twisted steel, linkage is housed.
One end wire binding of flexible pouch is in the annular groove of nut surface, and the other end wire binding of flexible pouch is in the annular groove on lower loaded plate surface.
At the injected hole of lower loaded plate built with a Grouting Pipe.
Lower between loaded plate with fining twisted steel for being threaded, upper loaded plate with between fining twisted steel for being threaded, also for being threaded between nut with fining twisted steel.
Relative to prior art, the utility model adds a built-in loaded plate and namely goes up loaded plate, even if in use, the nut at anchor pole top is corroded, upper loaded plate also can be used as stress point, control the distortion of supporting and protection structure, enhance the anchored force of the body of rod in cement combination, complete support action, and upper loaded plate is in injecting cement paste, do not contact with soil, can not be corroded, can Long-Time Service.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that schematic diagram is looked on a left side of Fig. 1.
Fig. 3 is that schematic diagram is looked on the right side of Fig. 1.
Wherein, 1 is nut; 2 is flexible pouch; 3 is fining twisted steels; 4 is lower loaded plates; 5 is injected holes; 6 is Grouting Pipe; 7 is nuts; 8 is linkages; 9 is upper loaded plates.
Detailed description of the invention
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of bellows enlarged footing anchor bolt support, comprise lower loaded plate 4, lower loaded plate 4 there is an injected hole 5, it is characterized in that: lower loaded plate 4 is contained on a fining twisted steel 3, lower loaded plate 4 is cylinder, periphery has annular groove, a nut 1 is also equipped with in the upper end of fining twisted steel 3, nut 1 is also cylinder, periphery has annular groove, fining twisted steel 3 is also equipped with loaded plate 9, upper loaded plate 9 is between nut 1 and lower loaded plate 4, also comprise a flexible pouch 2, one end of flexible pouch 2 is fixed on nut 1, the other end of flexible pouch 2 is fixed on lower loaded plate 4.In the bottom of fining twisted steel 3, linkage 8 is housed.One end wire binding of flexible pouch 2 is in the annular groove on nut 1 surface, and the other end wire binding of flexible pouch 2 is in the annular groove on lower loaded plate 4 surface.At the injected hole 5 of lower loaded plate 4 built with a Grouting Pipe 6.Lower loaded plate 4 with between fining twisted steel 3 for being threaded, upper loaded plate 9 with between fining twisted steel 3 for being threaded, also for being threaded between nut 1 with fining twisted steel 3.The nut 7 being used for fixing nut 1 is arranged at the top of fining twisted steel 3.
Linkage 8 can adopt shaft coupling.
The course of work of the present utility model is as follows: fining twisted steel 3 is connected with anchor pole by linkage 8, this bellows enlarged footing anchor bolt support pushes in boring by anchor pole, after arriving the Soil Anchor Design degree of depth, by Grouting Pipe 6 to slip casting in flexible pouch 2, after slip casting completes, close Grouting Pipe, this bellows enlarged footing anchor bolt support carries out support action at anchoring section.The utility model adds a built-in loaded plate and namely goes up loaded plate, even if in use, the nut at anchor pole top is corroded, and upper loaded plate also can be used as stress point, controls the distortion of supporting and protection structure, enhance the anchored force of the body of rod in cement combination, complete support action, and upper loaded plate is in injecting cement paste, does not contact with soil, can not be corroded, can Long-Time Service.
Above-described is only preferred embodiment of the present utility model; should be understood that; for a person skilled in the art; do not departing under the utility model general idea prerequisite; some changes and improvements can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.
Claims (5)
1. a bellows enlarged footing anchor bolt support, comprise lower loaded plate (4), lower loaded plate (4) there is an injected hole (5), it is characterized in that: lower loaded plate (4) is contained on a fining twisted steel (3), lower loaded plate (4) is cylinder, periphery has annular groove, a nut (1) is also equipped with in the upper end of fining twisted steel (3), nut (1) is also cylinder, there is annular groove on nut (1) surface, loaded plate (9) fining twisted steel (3) is also equipped with, upper loaded plate (9) is positioned between nut (1) and lower loaded plate (4), also comprise a flexible pouch (2), one end of flexible pouch (2) is fixed on nut (1), the other end of flexible pouch (2) is fixed on lower loaded plate (4).
2. bellows enlarged footing anchor bolt support as claimed in claim 1, is characterized in that: in the bottom of fining twisted steel (3), linkage (8) is housed.
3. bellows enlarged footing anchor bolt support as claimed in claim 1, it is characterized in that: one end wire binding of flexible pouch (2) is in the annular groove on nut (1) surface, and the other end wire binding of flexible pouch (2) is in the annular groove on lower loaded plate (4) surface.
4. bellows enlarged footing anchor bolt support as claimed in claim 1, is characterized in that: the injected hole (5) in lower loaded plate (4) is built with a Grouting Pipe (6).
5. bellows enlarged footing anchor bolt support as claimed in claim 1, it is characterized in that: for being threaded between lower loaded plate (4) with fining twisted steel (3), for being threaded between upper loaded plate (9) with fining twisted steel (3), also for being threaded between nut (1) with fining twisted steel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468099.3U CN204023569U (en) | 2014-08-19 | 2014-08-19 | A kind of bellows enlarged footing anchor bolt support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468099.3U CN204023569U (en) | 2014-08-19 | 2014-08-19 | A kind of bellows enlarged footing anchor bolt support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204023569U true CN204023569U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420468099.3U Active CN204023569U (en) | 2014-08-19 | 2014-08-19 | A kind of bellows enlarged footing anchor bolt support |
Country Status (1)
| Country | Link |
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| CN (1) | CN204023569U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836217A (en) * | 2017-02-15 | 2017-06-13 | 常州工学院 | A kind of construction method of expansion end formula soil bolt or soil nailing |
| CN106869136A (en) * | 2017-02-15 | 2017-06-20 | 常州工学院 | One kind expands end formula soil bolt |
-
2014
- 2014-08-19 CN CN201420468099.3U patent/CN204023569U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836217A (en) * | 2017-02-15 | 2017-06-13 | 常州工学院 | A kind of construction method of expansion end formula soil bolt or soil nailing |
| CN106869136A (en) * | 2017-02-15 | 2017-06-20 | 常州工学院 | One kind expands end formula soil bolt |
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| GR01 | Patent grant |