CN117211272A - Assembly and method for preventing corrosion of free section of prestressed anchor rod (cable) - Google Patents
Assembly and method for preventing corrosion of free section of prestressed anchor rod (cable) Download PDFInfo
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- CN117211272A CN117211272A CN202310969333.4A CN202310969333A CN117211272A CN 117211272 A CN117211272 A CN 117211272A CN 202310969333 A CN202310969333 A CN 202310969333A CN 117211272 A CN117211272 A CN 117211272A
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- sleeve
- protective sleeve
- sealing
- corrosion
- cable
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- 238000005260 corrosion Methods 0.000 title claims abstract description 49
- 230000007797 corrosion Effects 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 89
- 230000001681 protective effect Effects 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 35
- 238000005536 corrosion prevention Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 239000003755 preservative agent Substances 0.000 claims description 5
- 230000002335 preservative effect Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 235000014121 butter Nutrition 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The application provides an assembly and a method for preventing corrosion of a free section of a prestressed anchor rod (rope), and particularly relates to the technical field of anchor rod (rope) corrosion prevention. The anti-corrosion assembly comprises a protective sleeve, wherein the protective sleeve is sleeved on the surface of an anchor rod or an anchor cable, and at least one sleeve opening is formed in the surface of the protective sleeve; the protective sleeve is provided with a detachable sealing device; the sealing device is provided with grouting holes, and the positions of the grouting holes correspond to the positions of the sleeve holes; the grouting hole is connected with one end of a pressurizing pipe, and the other end of the pressurizing pipe is connected with a pressurizing pump. According to the application, the detachable sealing device is used for injecting the anti-corrosion material into the protective sleeve sleeved outside the anchor rod or the anchor cable, and then the sealing device is removed and the sleeve is sealed for opening holes in the later stage, so that the anti-corrosion requirement can be met, the whole lowering and installation of the post rod body can not be influenced.
Description
Technical Field
The application relates to the technical field of corrosion prevention of anchor rods (cables), in particular to a component method for corrosion prevention of free sections of prestressed anchor rods (cables).
Background
With more and more projects of permanent slope treatment and basement anti-floating treatment, the anchor rods (ropes) are used as an effective solution of the projects, and the application is wider. The free section corrosion prevention measure of the anchor rod (rope) is a big problem for limiting the permanent anchor rod. The traditional anti-corrosion measures are as follows: the rust-removing paint is painted, butter is smeared, or the full-length bonding type anchor cable is used for reconstruction, but the measures have the defects of difficult construction, poor anti-corrosion effect, easy leakage in the later period and the like, and severely restrict the application of the anchor rod (cable).
Because of the above-mentioned shortcomings, there is a need in the art for further improvements and modifications, the present application provides an assembly and method for preserving the free section of a prestressed anchor rod (cable) to meet the corrosion and durability requirements of the free section of the anchor rod (cable).
Disclosure of Invention
In order to overcome the defects in the prior art, the problems that the construction is difficult, the anti-corrosion effect is poor and the later-stage leakage is easy in the traditional anti-corrosion measure are solved. The application provides an assembly and a method for preventing corrosion of a free section of a prestressed anchor rod (cable), and the concrete technical scheme is as follows:
the assembly for preventing corrosion of the free section of the prestressed anchor rod/anchor cable comprises a protective sleeve, wherein the protective sleeve is sleeved on the surface of the anchor rod or the anchor cable, and at least one sleeve opening is formed in the surface of the protective sleeve; the protective sleeve is provided with a detachable sealing device; the sealing device is provided with grouting holes, and the positions of the grouting holes correspond to the positions of the sleeve holes; the grouting hole is connected with one end of a pressurizing pipe, and the other end of the pressurizing pipe is connected with a pressurizing pump.
Preferably, the sealing device comprises a sealing upper cover, a sealing lower cover, a connecting bolt and a connecting nut; one side of the sealing upper cover and one side of the sealing lower cover are provided with threaded sleeves, and the other side of the sealing upper cover and the sealing lower cover are provided with connecting lug plates which correspond to each other; an internal thread matched with the connecting bolt is arranged in the threaded sleeve; the side, provided with the threaded sleeves, of the sealing upper cover and the sealing lower cover are connected through a connecting bolt, and the side, provided with the connecting lug plate, of the sealing upper cover and the sealing lower cover are connected through a connecting nut; the sealing upper plate inner side wall is also provided with a diversion trench with the thickness of 1-2mm corresponding to the position of the sleeve hole.
Preferably, the sealing upper cover and the sealing lower cover are of a semi-cylindrical tubular structure, and the sealing device is made of steel materials or plastic materials.
Preferably, a gap exists between the protective sleeve and the anchor rod or the anchor cable, and an anti-corrosion material is injected into the gap through the pressurizing pipe and the pressurizing pump.
Also preferably, the anti-corrosive material is made of a fluid or semi-fluid anti-corrosive material.
It is also preferred that the number and spacing of the sleeve openings is set according to the actual length of the protective sleeve.
Further preferably, the pressurizing pipe is made of a metal pipe with threads on two ends.
Further preferably, the protective sleeve is made of plastic hose.
The anti-corrosion method for the free section of the prestressed anchor rod/anchor cable adopts the assembly for anti-corrosion of the free section of the prestressed anchor rod/anchor cable, and the specific method comprises the following steps:
s1, mounting a protective sleeve
Before the sleeve, lubricating grease is smeared on the outer surface of the free section of the prestressed anchor rod or the anchor cable; then a protective sleeve with the inner diameter being 3-4mm larger than the outer diameter of the anchor rod or the anchor cable is selected to be sleeved on the surface of the anchor rod or the anchor cable, and the two ends of the protective sleeve are not sealed once;
s2, perforating the protective sleeve
One or a plurality of sleeve holes with the diameter of 5-10mm are formed on the surface of the protective sleeve according to the actual length of the protective sleeve, and are used for injecting anti-corrosion materials.
S3, mounting a sealing device
Sleeving the sealing upper cover and the sealing lower cover at the sleeve hole position of the protection sleeve through the connecting bolt and the connecting nut, and enabling the positions of the grouting hole and the diversion trench to correspond to the sleeve hole position; wherein the inner diameter of the sealing device is 1-2mm smaller than the outer diameter of the protective sleeve;
s4, installing a pressurizing device
One end of a pressurizing pipe is connected with the grouting hole, and the other end of the pressurizing pipe is connected with a pressurizing pump;
s5, injecting an anti-corrosion material
Starting a booster pump, injecting an anti-corrosion material into the protective sleeve, and sealing the openings at the two ends of the protective sleeve by adopting a hot melting type or a binding wire after the anti-corrosion material overflows from the openings at the two ends of the protective sleeve;
s6, removing the sealing device
After the two ends of the protective sleeve are sealed, the sealing device is removed, one side of the sleeve with the opening is guaranteed to face upwards, and after the protective sleeve stands for 5 minutes, the opening of the sleeve is sealed by one of a preservative film, a rubber sleeve, a waterproof adhesive tape or a sealant.
The beneficial effects of the application are as follows:
according to the application, the detachable sealing device is used for injecting the anti-corrosion material into the protection sleeve sleeved outside the anchor rod or the anchor cable, and then the sealing device is removed and the opening of the protection sleeve is closed in the later stage, so that the anti-corrosion requirement can be met, the whole lowering and installation of the post rod body can not be influenced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, are not to be construed as unduly limiting the application.
FIG. 1 is a schematic diagram of the overall structure of the present application;
FIG. 2 is a cross-sectional view of the present application
FIG. 3 is a schematic view of the opening position of the opening hole of the protective sleeve according to the present application;
FIG. 4 is a schematic view of the structure of the sealing upper cover and the sealing lower cover;
FIG. 5 is a schematic view of the installation of a pressurized tube according to the present application;
in the figure, 1-a protective sleeve; 101-perforating a sleeve; 2-anchor rods or anchor cables; 3-sealing the upper cover; 301-grouting holes; 302-diversion trenches; 4-sealing the lower cover; 5-a thread sleeve; 6-connecting an ear plate; 7-connecting bolts; 8-connecting nuts; 9-pressurized tube.
Detailed Description
The application provides a component and a method for preventing corrosion of a free section of a prestressed anchor rod (rope), and the component and the method are further described with reference to the accompanying drawings and examples.
As shown in fig. 1-3, an assembly for protecting a free section of a prestressed anchor rod (cable) comprises a protection sleeve 1, wherein the protection sleeve 1 is sleeved on the surface of an anchor rod or an anchor cable 2, and at least one sleeve opening 101 is formed in the surface of the protection sleeve 1; the protection sleeve 1 is provided with a sealing device at a position corresponding to the sleeve opening 101; wherein the inner diameter of the sealing device is slightly smaller than the outer diameter of the protective sleeve. Preferably, the sealing device is further provided with grouting holes 301 at positions corresponding to the sleeve holes 101; the grouting hole 301 is connected with one end of the pressurizing pipe 9, and the other end of the pressurizing pipe 9 is connected with a pressurizing pump of the anti-corrosion material.
As shown in fig. 4, the sealing device comprises a sealing upper cover 3, a sealing lower cover 4, a connecting bolt 7 and a connecting nut 8; one side of the sealing upper cover 3 and one side of the sealing lower cover 4 are provided with threaded sleeves 5, and the other side of the sealing upper cover and the sealing lower cover are provided with connecting lug plates 6 which correspond to each other; an internal thread matched with the connecting bolt 7 is arranged in the threaded sleeve 5; the sides of the sealing upper cover 3 and the sealing lower cover 4, which are provided with the threaded sleeves 5, are connected through connecting bolts 7, and the sides of the sealing upper cover 3 and the sealing lower cover 4, which are provided with the connecting lug plates 6, are connected through connecting nuts 8; preferably, the inner side wall of the sealing upper plate 3 is further provided with a diversion trench 302 with a thickness of 1-2mm corresponding to the sleeve opening 101, so that the injected anti-corrosion material can be well introduced into the sleeve opening 101 of the protection sleeve 1 when the installation position of the grouting hole 301 and the sleeve opening 101 is slightly deviated.
Preferably, the sealing upper cover 3 and the sealing lower cover 4 are both in a semi-cylindrical tubular structure, and the sealing device is made of steel materials or plastic materials, and can be specifically selected according to construction requirements.
Preferably, a reserved gap of about 3-4mm is required between the protective sleeve 1 and the anchor rod or anchor cable 2, and a corrosion-resistant material is injected into the gap through the pressurizing pipe 9 and the pressurizing pump, so that a corrosion-resistant effect is achieved on the anchor rod or anchor cable 2. Also preferably, the preservative material may be made of a fluid or semi-fluid preservative material, such as lithium-based ester butter.
It is further preferred that the number and spacing of the sleeve openings 101 be set according to the actual length of the protective sleeve 1.
Still further preferably, the protective sleeve 1 is made of plastic hose.
An anti-corrosion method for a free section of a prestressed anchor rod (rope), which comprises the following steps:
s1, mounting a protective sleeve
Before the sleeve, lubricating grease is smeared on the free section of the prestressed anchor rod (rope), namely the outer surface of the anchor rod or the anchor rope 2, so as to increase lubricity; then, a protective sleeve 1 with the inner diameter being 3-4mm larger than the outer diameter of the anchor rod or the anchor cable 2 is selected to be sleeved on the surface of the anchor rod or the anchor cable 2, and two ends of the protective sleeve 1 are not sealed once;
s2, perforating the protective sleeve
One or more 5-10mm sleeve openings 101 are formed in the surface of the protective sleeve 1 according to the actual length of the protective sleeve 1 for injecting the anti-corrosive material.
S3, mounting a sealing device
Sleeving the sealing upper cover 3 and the sealing lower cover 4 at the position of the sleeve opening 101 of the protection sleeve 1 through the connecting bolt 7 and the connecting nut 8, and corresponding the positions of the grouting holes 301 and the diversion trenches 302 to the positions of the sleeve opening 101; the inner diameter of the sealing device is 1-2mm smaller than the outer diameter of the protection sleeve 1, but at the same time, the protection sleeve 1 and the anchor rod or the anchor cable 2 cannot be tightly contacted, so that the anti-corrosion material can flow freely;
s4, installing a pressurizing device
One end of the pressurizing pipe 9 is connected with the grouting hole 301, and the other end of the pressurizing pipe 9 is connected with the pressurizing pump, preferably, the pressurizing pipe 9 is made of a metal pipe with two ends screwed, so that the pressurizing pipe is convenient to be tightly connected with the pressurizing pump and the sealing device, as shown in fig. 5;
s5, injecting an anti-corrosion material
Starting a booster pump, injecting an anti-corrosion material into the protection sleeve 1, and sealing the openings at the two ends of the protection sleeve 1 by adopting a hot melting type or adopting a binding wire after the anti-corrosion material is fully filled and overflows from the openings at the two ends of the protection sleeve 1;
s6, removing the sealing device
After the sealing of the two ends of the protection sleeve 1 is completed, the sealing device is dismantled, the upward side of the protection sleeve 1, provided with the sleeve opening 101, is guaranteed, and the anti-corrosion material is filled into the protection sleeve 1 in a high-pressure mode, and after the sealing device is dismantled, part of the anti-corrosion material overflows from the opening of the sleeve opening 101, so that the protection sleeve can be kept stand for 5 minutes, and then the sleeve opening 101 is sealed in any one mode of a preservative film, a rubber sleeve, a waterproof adhesive tape or sealing glue, so that the anti-corrosion treatment of the free section of the prestressed anchor rod (rope) can be completed.
According to the application, the detachable sealing device is used for injecting the anti-corrosion material into the protection sleeve 1 sleeved outside the anchor rod or the anchor cable 2, and then the sealing device is dismantled and the sleeve opening 101 on the protection sleeve 1 is sealed in the later stage, so that the anti-corrosion requirement can be met, the whole lowering and installation of the post rod body can not be influenced, and the anti-corrosion protection device is simple in structure, safe and firm, and can effectively shorten the construction period and reduce the construction cost.
In the present application, the terms such as "upper", "lower", "bottom", "top", and the like refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely relational terms used for convenience in describing the structural relationships of the various components or elements of the present application, and are not meant to designate any one component or element of the present application, and are not to be construed as limiting the present application. Terms such as "connected," "coupled," and the like are to be construed broadly and mean either permanently connected or integrally connected or removably connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present application can be determined according to circumstances by a person skilled in the relevant art or the art, and is not to be construed as limiting the present application.
It should be understood that the above description is not intended to limit the application to the particular embodiments disclosed, but to limit the application to the particular embodiments disclosed, and that the application is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the application.
Claims (9)
1. The assembly for the corrosion prevention of the free section of the prestressed anchor rod/anchor cable comprises a protective sleeve, and is characterized in that the protective sleeve is sleeved on the surface of the anchor rod or the anchor cable, and at least one sleeve opening is formed in the surface of the protective sleeve; the protective sleeve is provided with a detachable sealing device; the sealing device is provided with grouting holes, and the positions of the grouting holes correspond to the positions of the sleeve holes; the grouting hole is connected with one end of a pressurizing pipe, and the other end of the pressurizing pipe is connected with a pressurizing pump.
2. The assembly for pre-stressed anchor rod/cable free-section corrosion protection of claim 1, wherein the sealing means comprises a sealing upper cover, a sealing lower cover, a connecting bolt, and a connecting nut; one side of the sealing upper cover and one side of the sealing lower cover are provided with threaded sleeves, and the other side of the sealing upper cover and the sealing lower cover are provided with connecting lug plates which correspond to each other; an internal thread matched with the connecting bolt is arranged in the threaded sleeve; the side, provided with the threaded sleeves, of the sealing upper cover and the sealing lower cover are connected through a connecting bolt, and the side, provided with the connecting lug plate, of the sealing upper cover and the sealing lower cover are connected through a connecting nut; the sealing upper plate inner side wall is also provided with a diversion trench with the thickness of 1-2mm corresponding to the position of the sleeve hole.
3. The assembly for protecting a free section of a prestressed anchor rod/cable according to claim 2, wherein said upper sealing cover and said lower sealing cover are each of a semi-cylindrical tubular structure, and said sealing means is made of steel material or plastic material.
4. An assembly for the free-section corrosion protection of prestressed anchors/cables according to claim 1, characterized in that there is a gap between the protective sleeve and the anchor or cable, in which gap a corrosion-protecting material is injected through a pressurized pipe and a pressurized pump.
5. The assembly for free-section corrosion protection of a prestressed bolt/cable according to claim 4, wherein said corrosion-resistant material is made of a fluid or semi-fluid corrosion-resistant material.
6. An assembly for the protection of free-section prestressed bolts/cables according to claim 1, characterized in that the number and spacing of the sleeve openings is set according to the actual length of the protective sleeve.
7. An assembly for the free-section corrosion protection of prestressed anchors/cables according to claim 1, wherein said pressurized tube is made of a metal tube threaded at both ends.
8. The assembly for pre-stressed anchor rod/cable free-section corrosion protection of claim 1, wherein the protective sleeve is made of plastic hose.
9. A method for preserving the free section of a prestressed anchor/anchorage cable, using an assembly for preserving the free section of a prestressed anchor/anchorage cable according to any one of claims 1 to 8, characterized in that it comprises the following steps:
s1, mounting a protective sleeve
Before the sleeve, lubricating grease is smeared on the outer surface of the free section of the prestressed anchor rod or the anchor cable; then, a protective sleeve with the inner diameter being 3-4mm larger than the outer diameter of the anchor rod or the anchor cable is selected to be sleeved on the surface of the anchor rod or the anchor cable, and two ends of the protective sleeve are not sealed once;
s2, perforating the protective sleeve
One or a plurality of sleeve holes with the diameter of 5-10mm are formed on the surface of the protective sleeve according to the actual length of the protective sleeve, and are used for injecting anti-corrosion materials.
S3, mounting a sealing device
Sleeving the sealing upper cover and the sealing lower cover at the sleeve hole position of the protection sleeve through the connecting bolt and the connecting nut, and enabling the positions of the grouting hole and the diversion trench to correspond to the sleeve hole position; wherein the inner diameter of the sealing device is 1-2mm smaller than the outer diameter of the protective sleeve;
s4, installing a pressurizing device
One end of a pressurizing pipe is connected with the grouting hole, and the other end of the pressurizing pipe is connected with a pressurizing pump;
s5, injecting an anti-corrosion material
Starting a booster pump, injecting an anti-corrosion material into the protective sleeve, and sealing the openings at the two ends of the protective sleeve by adopting a hot melting type or a binding wire after the anti-corrosion material overflows from the openings at the two ends of the protective sleeve;
s6, removing the sealing device
After the two ends of the protective sleeve are sealed, the sealing device is removed, one side of the sleeve opening is guaranteed to face upwards, and after the protective sleeve stands for 5 minutes, the sleeve opening is sealed by adopting any one mode of preservative film, rubber sleeve, waterproof adhesive tape or sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310969333.4A CN117211272A (en) | 2023-08-03 | 2023-08-03 | Assembly and method for preventing corrosion of free section of prestressed anchor rod (cable) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310969333.4A CN117211272A (en) | 2023-08-03 | 2023-08-03 | Assembly and method for preventing corrosion of free section of prestressed anchor rod (cable) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117211272A true CN117211272A (en) | 2023-12-12 |
Family
ID=89039701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310969333.4A Pending CN117211272A (en) | 2023-08-03 | 2023-08-03 | Assembly and method for preventing corrosion of free section of prestressed anchor rod (cable) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117211272A (en) |
-
2023
- 2023-08-03 CN CN202310969333.4A patent/CN117211272A/en active Pending
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