CN211006525U - Anchor head structure in pressure type anchor rope that can self preservation protect - Google Patents
Anchor head structure in pressure type anchor rope that can self preservation protect Download PDFInfo
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- CN211006525U CN211006525U CN201921014815.XU CN201921014815U CN211006525U CN 211006525 U CN211006525 U CN 211006525U CN 201921014815 U CN201921014815 U CN 201921014815U CN 211006525 U CN211006525 U CN 211006525U
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- anchor head
- strand
- inner anchor
- head
- anchor
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- 238000004321 preservation Methods 0.000 title description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 12
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 9
- 239000000440 bentonite Substances 0.000 claims abstract description 9
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 9
- 230000007774 longterm Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009954 braiding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
A pressure type anchor cable inner anchor head structure capable of self-protecting comprises an inner anchor head with a trapezoidal section, wherein the side surface of the inner anchor head corresponding to the lower bottom of the trapezoid is a first surface, and the side surface corresponding to the upper bottom of the trapezoid is a second surface; the inner anchor head is provided with a plurality of strand holes in a penetrating manner, steel strands are arranged in each strand hole in a penetrating manner, one end of each steel strand corresponding to the first surface is provided with an upset head, and the upset head is embedded into the strand hole of the first surface; the first surface is provided with a protective cover which hermetically covers the end heads of the steel strands; the protective cover is filled with bentonite. The utility model discloses stable in structure, long service life can improve the efficiency of prestressed anchorage cable construction, improves construction quality, guarantees the safety and the reliability of prestressing force high slope in the operation process.
Description
Technical Field
The utility model belongs to the technical field of hydraulic and hydroelectric engineering, especially an anchor head structure in pressure type anchor rope that can self preservation protect.
Background
In water conservancy and hydropower engineering, the prestressed anchoring technology is the most important technical means for reinforcing slope rock mass. Among the prestressed anchor cables used, a large part is a pressure type prestressed anchor cable. The pressure type anchor cable has the advantage that the prestress tensioning can be carried out due to the fact that the pressure type anchor cable has the grouting once, the construction process is simple compared with that of a common full-length bonding type anchor cable, and due to the fact that the PE sleeve is arranged outside the steel strand, prestress adjustment can be carried out in the actual operation process. Therefore, the pressure anchor cable in practical engineering is widely applied. However, in the pressure type anchor cable, the inner anchor head of the prestressed anchor cable is a key structure for determining the long-term reliable operation of the prestressed anchor cable, and if the inner anchor head is corroded and fails in the operation process due to corrosion and other reasons, the whole anchor cable may fail as a whole due to the failure of the inner anchor head.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an anchor head structure in pressure type anchor rope that can self preservation protect, its stable in structure, long service life can improve the efficiency of prestressed anchorage cable construction, improves construction quality, guarantees the safety and the reliability of prestressing force high slope in the operation process.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a pressure type anchor cable inner anchor head structure capable of self-protecting comprises an inner anchor head with a trapezoidal section, wherein the side surface of the inner anchor head corresponding to the lower bottom of the trapezoid is a first surface, and the side surface corresponding to the upper bottom of the trapezoid is a second surface; the inner anchor head is provided with a plurality of strand holes in a penetrating manner, steel strands are arranged in each strand hole in a penetrating manner, one end of each steel strand corresponding to the first surface is provided with an upset head, and the upset head is embedded into the strand hole of the first surface; the first surface is provided with a protective cover which hermetically covers the end heads of the steel strands; the protective cover is filled with bentonite.
Furthermore, the outer end of the protective cover is provided with a filling opening and is sealed by a plugging device.
Furthermore, one end of the heading facing the first surface is conical and is embedded into the stranded wire hole of the first surface.
The utility model has the advantages that: the utility model discloses anchor head structure in pressure type anchor rope that can self preservation protect, its stable in structure, long service life can improve the efficiency of prestressed anchorage cable construction, improves construction quality, guarantees the safety and the reliability of prestressing force high slope in the operation process, creates huge economic and social, has important popularization and application and worth.
Drawings
Fig. 1 is a schematic structural diagram of the inner anchor head structure of the pressure anchor cable capable of self-protection of the present invention.
Fig. 2 is a side view of the inner anchor head structure of the pressure anchor cable of the present invention which can be self-protected.
Fig. 3 is a plan view of the inner anchor head structure of the pressure anchor cable capable of self-protection of the present invention.
Fig. 4 is a schematic structural diagram of the upset head of the anchor head structure in the pressure anchor cable that can be self-protected in the present invention.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the drawings.
As shown in fig. 1-4, the utility model provides an anchor head structure in pressure type anchor rope that can self preservation protect, be trapezoidal interior anchor head 1 including the cross-section, the side that should interior anchor head 1 correspond this trapezoidal lower bottom is first face 11, and the side that corresponds this trapezoidal upper base is second face 12. The inner anchor head 1 is provided with a plurality of strand holes 2 in a penetrating mode, steel strands 3 penetrate through the strand holes 2, one end, corresponding to the first face, of each steel strand 3 is provided with an upset head 4, and the upset heads 4 are embedded into the strand holes 2 of the first face. Preferably, the end of the upset 4 facing the first face is conical and is inserted into the strand opening 2 of the first face 11. The first surface 11 is provided with a protective cover 5 which hermetically covers the ends of the steel strands 3. The shield 5 is filled with bentonite 6. The outer end of the protective cover 5 is provided with a filling opening 51 and is sealed by a plugging device.
The utility model also provides a construction method of the pressure type anchor head structure in anchor rope that can self-protect, utilize bentonite to pour into the equipment, pour bentonite 6 into the protection casing 5 of the anchor head 1 in through the inlet 51 of the protection casing 5, and guarantee that the bentonite 6 in the protection casing 5 is poured into relatively closely, then plug the inlet 51 of the protection casing 5; and (3) performing anchor rope braiding, hole entering and grouting on the inner anchor head 1 of the pre-stressed anchor rope after plugging, and performing installation and tensioning construction processes of an outer anchor pier and the outer anchor head to finish the implementation of the pre-stressed anchor rope.
The utility model discloses can solve anchor head reliability problem in long-term operation in-process in present pressure type anchor rope, through increase corresponding self-repairing and protective structure in the anchor head including, the life of anchor head in the extension guarantees the safety and the reliability of prestressing force high slope in operation process. Particularly, the bentonite is poured into the protective structure, and the poured bentonite can expand when encountering water after the inner anchor head is corroded and broken in the long-term operation process of the prestressed anchor cable, so that the inner anchor head is continuously protected from being influenced by corrosion factors such as underground water and the like, the service life of the inner anchor head of the prestressed anchor cable is prolonged, and the important anchoring effect is continuously exerted.
It should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and the purpose is to make those skilled in the art better understand the present invention, and should not be used to limit the scope and application of the present invention, and any modification, equivalent replacement, improvement, etc. made within the spirit or principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A pressure type anchor cable inner anchor head structure capable of self-protecting is characterized by comprising an inner anchor head with a trapezoidal section, wherein the side surface of the inner anchor head corresponding to the lower bottom of the trapezoid is a first surface, and the side surface corresponding to the upper bottom of the trapezoid is a second surface; the inner anchor head is provided with a plurality of strand holes in a penetrating manner, steel strands are arranged in each strand hole in a penetrating manner, one end of each steel strand corresponding to the first surface is provided with an upset head, and the upset head is embedded into the strand hole of the first surface; the first surface is provided with a protective cover which hermetically covers the end heads of the steel strands; the protective cover is filled with bentonite.
2. The self-protective pressure anchor cable inner anchor head structure of claim 1, wherein: the outer end of the protective cover is provided with a filling opening and is sealed by a plugging device.
3. The self-protective pressure anchor cable inner anchor head structure of claim 1, wherein: one end of the heading facing the first surface is conical and is embedded into the stranded wire hole of the first surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921014815.XU CN211006525U (en) | 2019-07-02 | 2019-07-02 | Anchor head structure in pressure type anchor rope that can self preservation protect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921014815.XU CN211006525U (en) | 2019-07-02 | 2019-07-02 | Anchor head structure in pressure type anchor rope that can self preservation protect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211006525U true CN211006525U (en) | 2020-07-14 |
Family
ID=71475632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921014815.XU Active CN211006525U (en) | 2019-07-02 | 2019-07-02 | Anchor head structure in pressure type anchor rope that can self preservation protect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211006525U (en) |
-
2019
- 2019-07-02 CN CN201921014815.XU patent/CN211006525U/en active Active
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