CN114775589A - Protection method for corrosion prevention of precast pile joint - Google Patents
Protection method for corrosion prevention of precast pile joint Download PDFInfo
- Publication number
- CN114775589A CN114775589A CN202210314854.1A CN202210314854A CN114775589A CN 114775589 A CN114775589 A CN 114775589A CN 202210314854 A CN202210314854 A CN 202210314854A CN 114775589 A CN114775589 A CN 114775589A
- Authority
- CN
- China
- Prior art keywords
- protective sleeve
- pile
- precast pile
- precast
- dents
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005536 corrosion prevention Methods 0.000 title abstract description 6
- 230000001681 protective effect Effects 0.000 claims abstract description 64
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000005260 corrosion Methods 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 17
- 239000002689 soil Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/60—Piles with protecting cases
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A protection method for corrosion prevention of joints of precast piles belongs to the technical field of pile foundation engineering and comprises the steps of preparing a sheet-shaped protective sleeve and a precast pile. The protective sleeve is provided with at least two dents of the protective sleeve, and the dents of the protective sleeve correspond to and are consistent with the dents of the preformed pile hoop. After the precast pile extension forms the anticorrosive coating, encircle upper and lower section pile extension position with flaky protective sheath in circumference, form the protective sheath of cover form, the protective sheath indenture corresponds with precast pile cuff indenture and blocks, the relative edge of protective sheath is fixed. The joint anticorrosive coating is no longer in direct contact with water and soil, and especially, the friction damage of the soil layer to the anticorrosive coating in the pile sinking process is prevented. The scheme is finished prefabricated parts, direct wrapping protection is performed on the site, the construction speed is high, the construction precision is high, the quality is easy to control, and the risk after construction is effectively prevented.
Description
Technical Field
The invention belongs to the technical field of pile foundation engineering, and particularly relates to a protection method for corrosion prevention of a precast pile joint.
Background
With the development of foundation engineering towards the construction direction of rapid construction cost, the precast pile is used more frequently in the field of foundation engineering as a high-efficiency and economic pile type. The conventional precast pile is limited by transportation, the length of the conventional precast pile is 15 meters at most, when a longer precast pile needs to be used in foundation engineering, the precast pile needs to be spliced (the conventional splicing method comprises a welding splicing method, a mechanical connection splicing method, a flange bolt connection method and a sulfur cement anchoring method), the pile position is subjected to corrosion prevention after splicing, and then pile sinking construction is continued. In this process, there is a risk that the anti-corrosion layer at the pile splicing position is damaged by the friction of the surrounding soil body during pile sinking, the anti-corrosion function is lost, and the durability is lost.
Disclosure of Invention
The invention aims to provide a method for protecting the joint of a precast pile from corrosion, which aims to carry out secondary protection on a joint anticorrosive layer after pile splicing so that the anticorrosive layer can continue to work after pile sinking, and has the significance that pile foundation engineering can effectively resist the corrosion of underground water and soil during the design service life of a structure.
The technical scheme is as follows:
a protection method for corrosion prevention of precast pile joints is characterized by comprising the following steps:
preparing a sheet-shaped protective sleeve and a precast pile.
The protective sleeve is provided with at least two dents of the protective sleeve, and the dents of the protective sleeve correspond to and are consistent with the dents of the preformed pile hoop.
After an anticorrosive coating is formed at the joint end plate of the precast pile splicing, the sheet-shaped protective sleeve is circumferentially hooped at the pile splicing position of the upper pile and the lower pile to form a sleeve-shaped protective sleeve, and the dent of the protective sleeve is correspondingly clamped with the dent of the precast pile hoop to protect the anticorrosive coating.
When the sheet-shaped protective sleeve is formed into a sleeve-shaped protective sleeve, the opposite edges are fixed to form a connecting seam.
The invention provides a novel method for protecting corrosion resistance of a precast pile joint, which aims to solve the potential hazards possibly existing in the construction process:
1. so that the anti-corrosion layer at the joint is not directly contacted with water and soil any more, and particularly, the anti-corrosion layer is prevented from being damaged by the friction of the soil layer in the pile sinking process.
2. The protection scheme is finished prefabricated parts, the prefabricated parts are directly wrapped and protected on site, the construction speed is high, and the quality is easy to control.
The advantages are that:
1. the construction process is simple and the steps are few. The invention adopts prefabricated production as a whole, only needs simple construction on site and has no age problem.
2. The construction precision is high, and the effect is controllable. The invention has clear principle, quick construction and obvious effect.
3. The cost is low. The invention has the main cost of prefabricated processing of the protective sleeve, single material, relatively low precision requirement, convenient processing and convenient construction, has obvious effect on the anticorrosion protection of the prefabricated pile joint and can effectively prevent the risk after construction.
Drawings
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a sectional view a-a in fig. 1.
Figure 3 is a deployment view of the sock.
FIG. 4 is a perspective view of a protective cover
FIG. 5 is a schematic view of the assembly of the sleeve insert ear and the sleeve insert hole.
1: precast pile (tubular pile or square pile), 2: precast pile cuff (precast pile leaves factory from band), 3: precast pile cuff indent (part of precast pile cuff) 4: end plate (precast pile leaves the factory from taking, this position generally needs brush anticorrosive paint), 5: pile splicing positions of upper and lower piles, 6: protective sheath, 7: connecting seam, 8: protective sheath indenture (indenture on the protective sheath), 9: protective sleeve insert lug, 10: and a protective sleeve jack.
Detailed Description
A method for protecting a precast pile joint from corrosion, comprising the steps of:
1. according to the size of the precast pile 1 (which can be a round pipe pile or a square pile and can be hollow) in actual engineering, a sheet-shaped protective sleeve 6 with corresponding size is prefabricated, wherein the main size is the outer perimeter of at least one precast pile hoop 2 and the position and size of the dent 3 of the precast pile hoop. In this embodiment the precast pile 1 has two rings of precast pile cuff indentations 3 at the joint.
2. The protection sleeve 6 can be made of steel, has a thickness of 1mm, is substantially rectangular, has a left length ab of the outer perimeter of the precast pile hoop 2 as shown in fig. 3, has a width of generally 170mm (which can be adjusted according to actual conditions), is provided with at least two protection sleeve indents 8 (the size of which is consistent with that of the precast pile hoop indents 3), extends from one side of the protection sleeve 6 in the vertical direction to form at least one protection sleeve insertion lug 9, and is provided with a corresponding protection sleeve insertion hole 10 on the opposite side. This embodiment has two sheath indents 8, two sheath insert ears 9 and two sheath insert holes 10.
3. In the 1 construction pile extension process of precast pile, form the anticorrosive coating after applying paint with a brush at 4 departments of joint end plate of every precast pile 1 with anticorrosive paint, hoop upper and lower section pile extension position 5 with protective sheath 6 (protective sheath 6 is located upper and lower section precast pile 1 middle part), notice protective sheath indenture 8 and precast pile cuff indenture 3 correspond to block, can increase the tangential force that protective sheath 6 and precast pile 1 connect like this, protective sheath 6 takes place relative displacement with precast pile 1 when preventing the pile sinking, lead to the anticorrosive coating of the unable protection end plate 4 department of protective sheath 6.
Wherein: the concrete method for hooping the precast pile 1 joint by the protective sleeve 6 comprises the following steps of positioning the protective sleeve 6 according to the protective sleeve dent 8 and the precast pile hoop dent 3, wherein the two protective sleeve dents 8 respectively correspond to one precast pile hoop dent 3 of the upper precast pile hoop dent 3 and the lower precast pile hoop dent 3, wrapping the precast pile 1 joint, enabling the protective sleeve insert ear 9 to pass through the protective sleeve jack 10, reversely folding the protective sleeve insert ear 9, and hammering the protective sleeve insert ear 9 by an iron hammer in the direction shown by an arc line in figure 2, so that the protective sleeve 6 hoops the precast pile joint more tightly, and forming a connecting seam 7.
There may also be a plurality of sheath indents 8 corresponding to the plurality of preformed pile cuff indents 3 of each preformed pile 1.
4. And after the construction of the protective sleeve 6 is finished, pile sinking construction is continuously carried out on the precast pile 1.
The invention requires that the protection sleeve 6 with corresponding size is prefabricated according to the size of the actual precast pile hoop 2, the site is directly and quickly constructed, and the feasible key of the invention is that the size of the protection sleeve 6 corresponds to the size of the precast pile hoop by 2 inches.
The invention utilizes the simple connection mode of the protective sleeve insert ear 9 and the protective sleeve insert hole 10 to effectively combine the protective sleeve 6 with the precast pile hoop 2 simply and conveniently.
And (3) hooping the precast pile hoop 2 by using a precast protective sleeve 6, and finally forming secondary anticorrosion protection for the joint of the precast pile 1.
The secondary protection method is suitable for secondary protection of the anticorrosive coatings of a welding pile splicing method, a mechanical connection pile splicing method, a flange bolt connection method and a sulfur cement anchoring method, achieves the purpose of using the protective sleeve 6 to protect the joint of the precast pile 1 from corrosion through the above implementation scheme, and is convenient to construct and remarkable in effect.
Claims (4)
1. A method for protecting the joint of a precast pile from corrosion is characterized by comprising the following steps:
preparing a sheet-shaped protective sleeve (6) and a precast pile (1);
the protective sleeve (6) is provided with at least two protective sleeve dents (8), and the protective sleeve dents (8) correspond to and are consistent with the preformed pile hoop dents (3);
after an anticorrosive coating is formed at a joint end plate (4) of a pile splicing of a precast pile (1), a flaky protective sleeve (6) is used for circumferentially hooping a pile splicing position (5) of an upper pile and a lower pile to form a sleeve-shaped protective sleeve (6), and a protective sleeve dent (8) is correspondingly clamped with a precast pile hoop dent (3) to protect the anticorrosive coating;
the sheet-like protective sleeve (6) is fixed at opposite edges to form a connecting seam (7) when the sleeve-like protective sleeve (6) is formed.
2. A method of protecting a precast pile joint from corrosion according to claim 1, comprising the steps of:
one side of the protective sleeve (6) is provided with at least one protective sleeve inserting lug (9), and the other side of the protective sleeve (6) is provided with
The protective sleeve inserting ear (9) penetrates through the protective sleeve inserting hole (10), and then the protective sleeve inserting ear (9) is reversely folded and fixed.
3. A method of protecting a precast pile joint from corrosion according to claim 1, comprising the steps of:
two protective sleeve dents (8) of the protective sleeve (6) respectively correspond to one precast pile hoop dent (3) of the upper precast pile and the lower precast pile (1).
4. A method of protecting a precast pile joint from corrosion according to claim 1, comprising the steps of:
the protective sleeve (6) is made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210314854.1A CN114775589A (en) | 2022-03-29 | 2022-03-29 | Protection method for corrosion prevention of precast pile joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210314854.1A CN114775589A (en) | 2022-03-29 | 2022-03-29 | Protection method for corrosion prevention of precast pile joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114775589A true CN114775589A (en) | 2022-07-22 |
Family
ID=82425980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210314854.1A Pending CN114775589A (en) | 2022-03-29 | 2022-03-29 | Protection method for corrosion prevention of precast pile joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114775589A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101512165A (en) * | 2006-09-12 | 2009-08-19 | Occst株式会社 | Band clip for cashing |
| CN102007335A (en) * | 2008-02-15 | 2011-04-06 | 安科克工业有限公司 | Hose joint clamp |
| CN202901643U (en) * | 2012-10-12 | 2013-04-24 | 重庆铱格管道技术有限公司 | Worm wheel and worm clamping hoop with adjustment function |
| CN203320520U (en) * | 2013-05-22 | 2013-12-04 | 中国二十冶集团有限公司 | Protection device for corrosion resistant layer of welding joint of pipe pile connector |
| CN204587641U (en) * | 2015-02-22 | 2015-08-26 | 深圳碰碰瓷酒类营销有限公司 | Easy open cover and easy-to-draw sealing arrangement |
| CN104896255A (en) * | 2015-04-22 | 2015-09-09 | 中国海洋石油总公司 | ROV operation-based maintenance clamp of flexible stand pipe |
| CN108468891A (en) * | 2018-05-16 | 2018-08-31 | 于德跃 | Inner bearing type clip, corresponding pipeline, pipe connection system and pipeline connecting method |
| CN208634528U (en) * | 2018-08-14 | 2019-03-22 | 潍坊腾润机械有限公司 | A kind of quick-release type clip |
| CN212294637U (en) * | 2020-04-01 | 2021-01-05 | 田娜 | Detachable foundation pile for civil engineering |
| CN213773324U (en) * | 2020-11-20 | 2021-07-23 | 汤始建华建材（上海）有限公司 | Integral pile hoop of precast pile |
-
2022
- 2022-03-29 CN CN202210314854.1A patent/CN114775589A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101512165A (en) * | 2006-09-12 | 2009-08-19 | Occst株式会社 | Band clip for cashing |
| CN102007335A (en) * | 2008-02-15 | 2011-04-06 | 安科克工业有限公司 | Hose joint clamp |
| CN202901643U (en) * | 2012-10-12 | 2013-04-24 | 重庆铱格管道技术有限公司 | Worm wheel and worm clamping hoop with adjustment function |
| CN203320520U (en) * | 2013-05-22 | 2013-12-04 | 中国二十冶集团有限公司 | Protection device for corrosion resistant layer of welding joint of pipe pile connector |
| CN204587641U (en) * | 2015-02-22 | 2015-08-26 | 深圳碰碰瓷酒类营销有限公司 | Easy open cover and easy-to-draw sealing arrangement |
| CN104896255A (en) * | 2015-04-22 | 2015-09-09 | 中国海洋石油总公司 | ROV operation-based maintenance clamp of flexible stand pipe |
| CN108468891A (en) * | 2018-05-16 | 2018-08-31 | 于德跃 | Inner bearing type clip, corresponding pipeline, pipe connection system and pipeline connecting method |
| CN208634528U (en) * | 2018-08-14 | 2019-03-22 | 潍坊腾润机械有限公司 | A kind of quick-release type clip |
| CN212294637U (en) * | 2020-04-01 | 2021-01-05 | 田娜 | Detachable foundation pile for civil engineering |
| CN213773324U (en) * | 2020-11-20 | 2021-07-23 | 汤始建华建材（上海）有限公司 | Integral pile hoop of precast pile |
Non-Patent Citations (1)
| Title |
|---|
| 耿明全: "移动式空心排桩导流和支挡设计与施工", 郑州： 黄河水利出版社, pages: 290 - 292 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6561736B1 (en) | Frictional coupler and stiffener for strengthening a section of piling | |
| CN111764379A (en) | Construction method and structure applied to reverse construction steel pipe pile | |
| CN115012426B (en) | Steel pipe pile support and construction method for existing telegraph pole during four-week full excavation | |
| CN101451357B (en) | Anti-corrosive method of prestressing concrete pipe pile joint and concrete pipe pile prepared thereby | |
| CN106013153A (en) | End protector for construction of steel pipe pile and working method thereof | |
| CN105240626B (en) | Precast assembly steel concrete combinative structure pipeline and preparation method thereof | |
| CN114775589A (en) | Protection method for corrosion prevention of precast pile joint | |
| JPH11256587A (en) | Cofferdam construction method for reinforcing bridge pier | |
| JP2001303604A (en) | Joining structure of steel pipe pile and upper structure | |
| CN205857182U (en) | A kind of end-protecting device for steel-pipe pile construction | |
| JPH08333743A (en) | Joint structure of pile body | |
| CN219060029U (en) | Connecting device for prestressed concrete pipe piles | |
| CN206916737U (en) | A kind of wear-resistant corrosion-proof joint of precast square pile | |
| CN206385532U (en) | It is a kind of to be used for the piling template of CFG | |
| CN108087663A (en) | Oil gas transmission pipeline protection device | |
| CN214889493U (en) | Reinforced concrete pipe culvert with corrosion-resistant leakage-proof strong joints | |
| US3110503A (en) | Joint for prestressed concrete pipe | |
| CN110983999B (en) | Construction method for reinforcing bridge pile foundation pier stud | |
| CN211948390U (en) | Connecting structure of prestressed concrete pipe pile | |
| CN210066538U (en) | Self-compaction flexible pipe culvert interface area | |
| CN220058131U (en) | Repair structure for PHC broken pile of high pile cap | |
| US3931716A (en) | Pile splice for concrete and steel piles of various configuration | |
| JP2002364283A (en) | Segment piece for press-in construction method and immersed body using the same | |
| CN221276586U (en) | Enlarged footing flange joint tubular pile | |
| CN211200376U (en) | Protector and pile system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220722 |