CN209099354U - A kind of prestress anchorage cable with good durability - Google Patents
A kind of prestress anchorage cable with good durability Download PDFInfo
- Publication number
- CN209099354U CN209099354U CN201821850805.5U CN201821850805U CN209099354U CN 209099354 U CN209099354 U CN 209099354U CN 201821850805 U CN201821850805 U CN 201821850805U CN 209099354 U CN209099354 U CN 209099354U
- Authority
- CN
- China
- Prior art keywords
- anchor
- cable
- anchor cable
- anchorage
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000004873 anchoring Methods 0.000 claims description 12
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000004888 barrier function Effects 0.000 abstract description 2
- 239000012141 concentrate Substances 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005496 tempering Methods 0.000 abstract 1
- 239000011083 cement mortar Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model provides a kind of prestress anchorage cable with good durability, including anchor cable, anchor cable, sealing off and covering anchorage anchor head and anchorage, is set with two casings made of the tempering pipe set gradually up and down on anchor cable；Isolated tube is set on anchor cable between anchorage and upper square casing；Two casings and anchor cable are connected with the second anchor layer, the first anchor layer are enclosed on two sleeve outer walls, the second casing shoe has the firm section affixed with two anchor layers.Casing in the prestress anchorage cable can undertake with anchor cable in wide-angle intersect it is shear-deformable, and it is stitched by limiting the drawing crack that the second anchor layer is generated by anchorage cable stretching with the adhesion strength of the second anchor layer, anchor cable stress is limited to concentrate, reduce stress corrosion, casing forms physical isolation barrier outside anchor cable, the channel of underground water, gas, corrosivity ground contact anchor cable is blocked, realize the protection to anchor cable in terms of resisting shear-deformable, reduction stress corrosion, preventing corrosion, it is ensured that anchorage cable engineering has good durability.
Description
Technical field
The utility model belongs to Geotechnical Engineering field, is related to a kind of prestressed anchor Cable Structure, and in particular to a kind of tool
There is the prestress anchorage cable of good durability to combine.
Background technique
Currently, in Geotechnical Engineering field, prestress anchorage cable using very extensive.Especially in complicated geological disaster
It is more universal in harnessing project.With the extensive application of anchor cable, its own there are the problem of become increasingly conspicuous, anchor cable applies prestressing force
For geological disaster deformable body (landslide, avalanche etc.) etc. during gradually stable, the relative displacement that structural plane generates is to anchor cable afterwards
Failure by shear is formed, the stress corrosion of anchor cable at structural plane position, anchor rope breakage caused by anchor cable corrodes etc., and these problems
The anchorage cable engineering structural damage of initiation have it is sudden, destroy before without obvious sign, it is very harmful.
Summary of the invention
Anchor cable failure by shear can be prevented or substantially reduced the purpose of the utility model is to provide one kind, stress concentrates corruption
The prestress anchorage cable with good durability of the problems such as erosion, corrosion.
To achieve the above object, the technical scheme adopted by the utility model is a kind of pre- with good durability answers
Power anchor cable, including anchor cable, anchor cable upper end are connected with sealing off and covering anchorage anchor head and anchorage, and the mutual not phase set gradually up and down is set on anchor cable
First sleeve and the second casing, first sleeve even is in contact with the second casing；It is covered on anchor cable between anchorage and first sleeve
Equipped with isolated tube；Between first sleeve and anchor cable, the second anchor layer, first sleeve outer wall are connected between the second casing and anchor cable
The first anchor layer is enclosed on upper and the second sleeve outer wall, the second casing shoe is equipped with firm section, consolidates section and the first anchor layer
It is affixed with the second anchor layer.
The utility model prestress anchorage cable is made of concrete, the anchor cable beam finished and two casings etc., the anchor cable finished
Beam penetrates in two casings setting up and down, and the contact surface of two casings is in the boundary position of free section of anchor cable and anchoring section
It sets, is avoided that and causes additional stress.After the completion of construction, rigid casing is highly resistant to shearing caused by the structural plane changing of the relative positions and becomes
Shape, while casing effectively adjusts the peak stress of anchoring section by itself adhesion strength between cement mortar anchoring body, keeps away
Exempt to form stress corrosion in positions such as structural plane, cement mortar anchoring body localized voids, finally, casing is in prestress anchorage cable periphery
Effective physical isolation together is formed, the corrosion of anchor cable is avoided.The utility model prestress anchorage cable can effectively improve anchor cable work
The durability of journey, it is ensured that safety of the engineering in reasonable operating life.
Detailed description of the invention
Fig. 1 is the profilograph of the utility model prestress anchorage cable.
Fig. 2 is the profilograph of the utility model prestress anchorage cable middle sleeve.
In figure: 1. sealing off and covering anchorage anchor heads, 2. anchorages, 3. isolated tubes, 4. first anchor layers, 5. first sleeves, 6. anchor cables, 7. stringings
Ring, 8. lock ring rings, 9. guiding caps, 10. firm sections, 11. second casings, 12. second anchor layers, 13. free section of anchor cable and anchoring
The boundary position of section, 14. tube bodies, 15. injected holes.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the utility model prestress anchorage cable, including anchor cable 6, the upper end of anchor cable 6 are connected with concrete and are made
Sealing off and covering anchorage anchor head 1, be set with the first sleeve 5 set gradually up and down and the second casing 11, first sleeve 5 and second on anchor cable 6
Casing 11 is not connected to, and first sleeve 5 is in contact with the second casing 11, and the contact surface of first sleeve 5 and the second casing 11 is in anchor
At the boundary position 13 of 6 free segment of rope and anchoring section；Direction, sealing off and covering anchorage anchor head 1 and first along sealing off and covering anchorage anchor head 1 to first sleeve 5
Anchorage 2 and isolated tube 3 are successively arranged on anchor cable 6 between casing 5, the lower end of isolated tube 3 connects with the upper end of first sleeve 5
Touching；The lower end flush of the lower end of anchor cable 6 and the second casing 11, between first sleeve 5 and anchor cable 6, the second casing 11 and anchor cable 6
Between be connected with the second anchor layer 12, be enclosed with the first anchor layer 4 on 5 outer wall of first sleeve and on 11 outer wall of the second casing, the
Two casings, 11 bottom end is equipped with firm section 10, consolidate section 10 and the first anchor layer 4 and the second anchor layer 12 it is affixed be an entirety.
Isolated tube 3 is made of pvc pipe, and the length is 1m.
Anchor cable 6 uses the anchor cable beam of establishment in the prior art, which is equipped with stringing ring 7 and lock ring ring 8,
The lower end of the anchor cable beam is guiding cap 9；The anchor cable beam free segment housing bellows separates anchor cable beam with the second anchor layer 12, protects
The free extension of free segment when demonstrate,proving 6 tensioning of anchor cable.
First sleeve 5 and the second casing 11 are all made of steel floral tube of the wall thickness not less than 4.5mm and are made.It is with first sleeve 5
Example is illustrated, and the structure of first sleeve 5 is as shown in Fig. 2, include tube body 14, the side wall of tube body 14 is equipped with multiple injected holes
15。
The construction of the utility model prestress anchorage cable: it drills in the position that the region that prestress anchorage cable need to be arranged is specified, so
Afterwards, it is sequentially placed into the second casing 11 and first sleeve 5 in hole, there is gap between hole and casing, then, the anchor cable beam finished
In threading, cement mortar is under pressure through the injected hole 14 on the second casing 11, between the second casing 11 and hole
Gap in, until cement mortar full of between hole and the second casing 11 gap and anchor cable beam anchoring section and the second casing 11 it
Between gap；After cement mortar solidification, the anchor layer between the second casing 11 and anchor cable beam anchoring section is formed, forms the second casing
Anchoring between 11 and hole；After anchor layer intensity reaches design requirement, anchorage cable stretching, locking pour the cement of free segment later
Mortar, then concrete sealing off and covering anchorage.
After the completion of the utility model construction prestressed cable, geological disaster deformable body is generated along structural plane and 6 axis of anchor cable
In wide-angle intersection it is shear-deformable when, shear stress will be undertaken by biggish two casings of shear stiffness, thus to 6 shape of anchor cable
At protection, anchor cable 6 is avoided while in tension and the complex stress condition sheared.Secondly anchor cable 6 is in stretching process, and second
Anchor layer 12 can generate drawing crack seam, so that stress concentration phenomenon occurs in the anchor cable 6 at drawing crack seam, cause stress corrosion, two sets
Pipe effectively can be limited or be constrained the second anchor layer 12 by itself adhesion strength between the second anchor layer 12 and generate crack,
To effectively limit the stress concentration degree of the second anchor layer 12, the stress corrosion of anchor cable 6 is substantially reduced.In addition, two casings
Physical barriers are provided for anchor cable 6, thoroughly eliminate the channel of underground water, gas, corrosivity ground contact anchor cable 6.And then reach guarantor
Protect anchor cable 6, it is ensured that its purpose with good durability.
Since first sleeve 5 is opposite with the free segment of anchor cable 6, is not influenced by 6 tensioning of anchor cable, be not also deformed；The
Two casings 11 are located at the anchoring section of anchor cable 6, will receive the influence of 6 tensioning of anchor cable in 6 stretching process of anchor cable and are deformed, lead
Cause first sleeve 5 and the second casing 11 that can be deformed difference, therefore, the contact surface of first sleeve 5 and the second casing 11 is in anchor
The boundary position 15 of rope free segment and anchoring section can be avoided the second casing 11 and generate extruding additional stress to first sleeve 5.
In the concreting process of anchor cable end, isolated tube 3 plays anchor cable punch die.Simultaneously first sleeve 5 with
Flexible pipe is formed between anchorage, and first sleeve 5 is avoided to influence 6 tensioning of anchor cable.
Claims (3)
1. a kind of prestress anchorage cable with good durability, including anchor cable (6), anchor cable (6) upper end is connected with sealing off and covering anchorage anchor head (1)
With anchorage (2), which is characterized in that be set with the mutual disjunct first sleeve (5) and second set gradually up and down on anchor cable (6)
Casing (11), first sleeve (5) are in contact with the second casing (11)；On anchor cable (6) between anchorage (2) and first sleeve (5)
It is set with isolated tube (3)；Second is connected between first sleeve (5) and anchor cable (6), between the second casing (11) and anchor cable (6)
Anchor layer (12) is enclosed with the first anchor layer (4), the second casing on first sleeve (5) outer wall and on the second casing (11) outer wall
(11) bottom end is equipped with firm section (10), consolidates section (10) and the first anchor layer (4) and the second anchor layer (12) are affixed.
2. the prestress anchorage cable according to claim 1 with good durability, which is characterized in that in use, first set
The contact surface of pipe (5) and the second casing (11) is located at the boundary position (13) of free section of anchor cable and anchoring section.
3. the prestress anchorage cable according to claim 1 with good durability, which is characterized in that the anchor cable (6)
The lower end flush of lower end and the second casing (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821850805.5U CN209099354U (en) | 2018-11-12 | 2018-11-12 | A kind of prestress anchorage cable with good durability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821850805.5U CN209099354U (en) | 2018-11-12 | 2018-11-12 | A kind of prestress anchorage cable with good durability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209099354U true CN209099354U (en) | 2019-07-12 |
Family
ID=67159028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821850805.5U Expired - Fee Related CN209099354U (en) | 2018-11-12 | 2018-11-12 | A kind of prestress anchorage cable with good durability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209099354U (en) |
-
2018
- 2018-11-12 CN CN201821850805.5U patent/CN209099354U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |