CN208533522U - A kind of Wedge gripping for prestressed anchor tensioning again - Google Patents
A kind of Wedge gripping for prestressed anchor tensioning again Download PDFInfo
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- CN208533522U CN208533522U CN201821106136.0U CN201821106136U CN208533522U CN 208533522 U CN208533522 U CN 208533522U CN 201821106136 U CN201821106136 U CN 201821106136U CN 208533522 U CN208533522 U CN 208533522U
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- wedge structure
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Abstract
The utility model discloses a kind of Wedge grippings for prestressed anchor tensioning again, are related to prestressed anchor tension technology field；Including jack, stationary wedge structure, movable wedge structure and anchorage；Stationary wedge structure, movable wedge structure are in pyramidal, the outer wall of stationary wedge structure is tightly attached on the inner wall of jack, the outer wall of movable wedge structure is tightly attached on the inner wall of stationary wedge structure, and anchorage is located at the center of movable wedge structure, has more anchor poles on anchorage；Stationary wedge structure is made of the first arc panel of muti-piece, and the bottom of the first arc panel is provided with the first inclined surface protruded towards anchorage；Movable wedge structure is made of the second arc panel of muti-piece, and the bottom of the second arc panel is provided with the second inclined surface；The beneficial effects of the utility model are: realizing the tensioning of existing prestressed anchor, solving the problems, such as can not be to anchor pole tensioning again after existing prestressed anchor cuts away tensioning section.
Description
Technical field
The utility model relates to prestressed anchor tension technology fields, more specifically, the utility model relates to a kind of use
In the Wedge gripping of prestressed anchor tensioning again.
Background technique
Currently, since prestressed anchor has, speed of application is fast, difficulty is small, equipment is light, take up little area, low cost etc. is excellent
Point, it has also become the technology generallyd use in geotechnical anchor engineering.
But: (1) prestressed anchor hold load can with the variation of time and surrounding enviroment increase or reduce,
Solution anchor pole holds the size of load, and the security evaluation of anchoring system is played a crucial role, and tensioning is exactly again
Solution holds the simplicity and reliable method of load；(2) prestressed anchor would generally generate stress loss because of reasons such as creeps or because outer
The continuous action of power and overload, cause the deformation increase of anchoring system, security risk to increase, need to open anchor pole again at this time
It draws to adjust and hold load and reach design level；(3) anchor clamp by long-term use after may be produced because of corrosion or the reasons such as external force
It is raw damaged, it needs to replace by method for stretching again.In these types of situation, require to carry out tensioning again to prestressed anchor.Anchor pole
After construction, tensioning section dowel can generally be cut off, sealing off and covering anchorage, if do not cut off, or remaining dowel long enough after excision,
Jack can be locked directly on dowel or tensioning again will be carried out after dowel spreading；But in most cases, for side
Just construct and save cost, remaining dowel is very short (general 50mm or so) after cutting off in Practical Project, can not directly tensioning or
Spreading, in this case, there is presently no feasible method for stretching again.
Utility model content
For overcome the deficiencies in the prior art, the utility model provides a kind of wedge grip for prestressed anchor tensioning again
Tool, the tensioning again of prestressed anchor is realized by the Wedge gripping.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of for prestressed anchor tensioning again
Wedge gripping thes improvement is that: including jack, stationary wedge structure, movable wedge structure and anchorage；
The stationary wedge structure and movable wedge structure are in the outer wall of pyramidal, described stationary wedge structure
It is tightly attached on the inner wall of jack, the outer wall of the movable wedge structure is tightly attached on the inner wall of stationary wedge structure, described
Anchorage be located at the center of movable wedge structure, there are more anchor poles on anchorage；
The stationary wedge structure is made of the first arc panel of muti-piece, and the bottom of the first arc panel is provided with towards anchor
Has the first inclined surface of protrusion；The movable wedge structure is made of the second arc panel of muti-piece, and the bottom of the second arc panel
It is provided with the second inclined surface to fit with the first inclined surface.
In such a configuration, the stationary wedge structure is made of identical first arc panel of three block structures.
In such a configuration, the movable wedge structure is made of identical second arc panel of three block structures.
The beneficial effects of the utility model are: the tensioning section that the utility model can be used for anchor pole does not have sufficient length to be opened
In the case of drawing, anchorage is directly clamped, passes through hollow jack and carries out tensioning.
Detailed description of the invention
Fig. 1 is a kind of Longitudinal cross section schematic for the prestressed anchor Wedge gripping of tensioning again of the utility model.
Fig. 2 is a kind of top view for the prestressed anchor Wedge gripping of tensioning again of the utility model.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection
It encloses.In addition, all connection/connection relationships being related in patent, not singly refer to that component directly connects, and referring to can be according to specific
Performance, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each skill in the utility model creation
Art feature, can be with combination of interactions under the premise of not conflicting conflict.
Shown in reference picture 1, Fig. 2, the utility model discloses a kind of Wedge gripping for anchor pole tensioning again, specifically,
The Wedge gripping for anchor pole tensioning again includes jack 10, stationary wedge structure 20, movable wedge structure 30 and anchorage
40, the stationary wedge structure 20 and movable wedge structure 30 are in pyramidal, wherein the internal diameter of the jack 10 is slightly
Outer wall greater than the outer diameter of stationary wedge structure 20, therefore stationary wedge structure 20 is tightly attached on the inner wall of jack 10；It is fixed
The internal diameter of wedge structure 20 is slightly larger than the outer diameter of movable wedge structure 30, therefore the outer wall of movable wedge structure 30 is tightly attached to admittedly
On the inner wall for determining wedge structure 20, the anchorage 40 is located at the center of movable wedge structure 30, has more on anchorage 40
Anchor pole 401 in the present embodiment, is fixed with equally distributed four anchor poles 401 on anchorage 40.
Further, the stationary wedge structure 20 is made of the first arc panel of muti-piece 201, and the first arc panel 201
Bottom be provided with towards anchorage 40 protrude the first inclined surface；The movable wedge structure 30 is by the second arc panel of muti-piece
301 are constituted, and the bottom of the second arc panel 301 is provided with the second inclined surface to fit with the first inclined surface.In the present embodiment
In, the stationary wedge structure 20 is made of identical first arc panel 201 of three block structures；The movable wedge structure 30
It is made of identical second arc panel 301 of three block structures.In addition, as shown in Figure 1, being provided on the lateral wall of the jack 10
Oil inlet and oil outlet are connected with oil inlet pipe 101 on oil inlet, flowline 102 are connected on oil outlet.The above embodiments
In, the material of stationary wedge structure 20 and movable wedge structure 30 is A3 structural carbon steel.
By above-mentioned structure, the dowel tensioning segment length that the utility model can be used for anchor pole not enough carries out tensioning situation
Under, anchorage 40 is directly clamped, tensioning is carried out by hollow jack 10, specific work process is as follows: feelings as illustrated
Condition successively installs anchorage 40 and jack 10, and the inner wall by stationary wedge structure 20 along jack 10 is placed respectively, will be movable
Wedge structure 30 is placed along the inner wall of stationary wedge structure 20, downward impact activity wedge structure 30, due to the first inclined surface and
The presence of second inclined surface clamps anchorage 40；It presses thereafter through oil inlet pipe 101 to jack 10, by jack 10, admittedly
Determine the frictional force between wedge structure 20, movable wedge structure 30 and anchorage 40, anchorage 40 is clamped and is slowly risen.
It is to be illustrated to the preferable implementation of the utility model, but the utility model creation is not limited to institute above
Embodiment is stated, those skilled in the art can also make various be equal without departing from the spirit of the present invention
Deformation or replacement, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (3)
1. a kind of Wedge gripping for prestressed anchor tensioning again, it is characterised in that: including jack, stationary wedge structure,
Movable wedge structure and anchorage；
The stationary wedge structure and movable wedge structure are in that the outer wall of pyramidal, described stationary wedge structure is close to
On the inner wall of jack, the outer wall of the movable wedge structure is tightly attached on the inner wall of stationary wedge structure, the anchor
Tool is located at the center of movable wedge structure, has more anchor poles on anchorage；
The stationary wedge structure is made of the first arc panel of muti-piece, and the bottom of the first arc panel be provided with it is convex towards anchorage
The first inclined surface out；The movable wedge structure is made of the second arc panel of muti-piece, and the bottom setting of the second arc panel
There is the second inclined surface to fit with the first inclined surface.
2. a kind of Wedge gripping for prestressed anchor tensioning again according to claim 1, it is characterised in that: described
Stationary wedge structure is made of identical first arc panel of three block structures.
3. a kind of Wedge gripping for prestressed anchor tensioning again according to claim 1, it is characterised in that: described
Movable wedge structure is made of identical second arc panel of three block structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821106136.0U CN208533522U (en) | 2018-07-12 | 2018-07-12 | A kind of Wedge gripping for prestressed anchor tensioning again |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821106136.0U CN208533522U (en) | 2018-07-12 | 2018-07-12 | A kind of Wedge gripping for prestressed anchor tensioning again |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208533522U true CN208533522U (en) | 2019-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821106136.0U Active CN208533522U (en) | 2018-07-12 | 2018-07-12 | A kind of Wedge gripping for prestressed anchor tensioning again |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208533522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113882370A (en) * | 2021-10-22 | 2022-01-04 | 深圳市工勘岩土集团有限公司 | Anchor rod anti-pulling test structure after anchor sealing based on clamping fixation |
-
2018
- 2018-07-12 CN CN201821106136.0U patent/CN208533522U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113882370A (en) * | 2021-10-22 | 2022-01-04 | 深圳市工勘岩土集团有限公司 | Anchor rod anti-pulling test structure after anchor sealing based on clamping fixation |
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