CN108755675A - A kind of steel-pipe pile pile cover structure and the construction method for improving steel-pipe pile corrosion resistance - Google Patents
A kind of steel-pipe pile pile cover structure and the construction method for improving steel-pipe pile corrosion resistance Download PDFInfo
- Publication number
- CN108755675A CN108755675A CN201810788004.9A CN201810788004A CN108755675A CN 108755675 A CN108755675 A CN 108755675A CN 201810788004 A CN201810788004 A CN 201810788004A CN 108755675 A CN108755675 A CN 108755675A
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- China
- Prior art keywords
- steel
- pile
- pipe pile
- prefabricated
- concrete
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Classifications
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- 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
- E02D5/223—Details of top sections of foundation 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
- E02D5/60—Piles with protecting cases
-
- 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
- E02D5/66—Mould-pipes or other moulds
- E02D5/68—Mould-pipes or other moulds for making bulkheads or elements thereof
Abstract
The invention discloses a kind of steel-pipe pile pile cover structure, including prefabricated steel-pipe pile and harbour beam, pre-buried main reinforcement and core grouted concrete in prefabricated steel-pipe pile are equipped with stirrup on the outside of main reinforcement；Harbour beam is formed by prefabricated crossbeam, prefabricated longeron, the cast-in-place connector concrete of the longitudinal and transverse beam of harbour, prefabricated pile cover and reinforced concrete sleeve are equipped at the top of prefabricated steel-pipe pile, and it is rigidly connected with prefabricated steel-pipe pile by core grouted concrete in prefabricated steel-pipe pile and cast-in-place pile cover connector concrete, reinforced concrete sleeve blocks clay between bottom end circumference and the gap of prefabricated steel-pipe pile and winds geotextile layer on clay, and the top preset of prefabricated pile cover has anti-corrosion injected hole.Anti-corrosion material is injected by anti-corrosion injected hole in the gap between steel-pipe pile and reinforced concrete sleeve.Present invention has the advantages that：In addition steel tube pile structure need not increase the corrosion-resistant wall thickness of steel-pipe pile in splash zone and fluctuation of water table section；It can be without anti-corrosion of steel pipe pile application and cathodic protection.
Description
Technical field
The present invention relates to the STEEL TUBE PILE WHARF of port engineering and the design fields of off-lying sea hydraulic structure steel pipe pile foundation, special
It is not related to a kind of raising steel-pipe pile in splash zone, the pile cover structure and construction method of fluctuation of water table area corrosion resistance.
Background technology
Steel tube pile structure be port and pier engineering and off-lying sea hydraulic structure engineering pass through frequently with one of structure type.One
As splash zone of the construction usually residing for steel-pipe pile, in addition fluctuation of water table section increases certain wall thickness make as steel-pipe pile
The corrosion thickness reserved with the phase, while the measures such as derusting, the setting cathodic protection of anticorrosion with painting coating are also taken on the outside of steel-pipe pile.
When the wall thickness difference of a steel-pipe pile, pile foundation welding processing is complicated and steel using amount is big, and generally use is waterborne after the completion of pile sinking
The cast-in-place rectangular pile cap structure of formwork supporting plate, working procedure is more, and concrete amount is larger, and by hydrometeorology, geological conditions and
Human factor influences, and the cast-in-place generally more prefabricated pile cover of pile cover concrete construction quality is slightly worse.
Certain engineering projects are especially overseas Wharf Engineering, often have in structure design from domestic pile foundation wharfs it is different it
Locate, the pile foundation wharfs in some areas are got used to very long (100~200m is even longer) using dock structure longitudinal divisions in the world
Complete straight stake steel tube pile structure.According to state, the construction experiences of outer and inner tube stake harbour, it is in splash zone and fluctuation of water table section
Steel-pipe pile although after taking the safeguard procedures such as derusting, anticorrosion with painting coating, cathodic protection or being very easy to occur serious
Corrosion problem, be steel tube pile structure be easiest to corrosion damage weak link.Harbour be completed after operation if to splash zone and
Fluctuation of water table section carries out the maintenance work after pile foundation corrosion, and the harbour stopping service time is longer, and maintenance effect is also ideal not to the utmost,
Increase maintenance and the operation cost of harbour.To adapt to the construction in sea, inside and outside marine engineering, strengthen port engineering and off-lying sea water conservancy project
Building steel-pipe pile in splash zone, the Anticorrosive Durability Design of fluctuation of water table section, reduce or prevent STEEL TUBE PILE WHARF and
Pile foundation maintenance work of the off-lying sea hydraulic structure during operation, improves the efficiency of operation of harbour, it is necessary to existing steel-pipe pile
The anticorrosive measure designed in splash zone and fluctuation of water table section further is enhanced.
Invention content
It is corrosion-resistant in splash zone, fluctuation of water table area that technical problem to be solved by the invention is to provide a kind of raising steel-pipe piles
The pile cover structure and construction method of property.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of steel-pipe pile pile cover structure, including steel
Pile pile, prefabricated pile cover and reinforced concrete sleeve, concrete sleeve (bottom end surrounding) block clay between steel-pipe pile gap and twine
The pressure injection anti-corrosion material epoxy resin mortar in gap between geotextiles, reinforced concrete sleeve and steel-pipe pile improves steel
Anti-corrosion ability of the pile pile in splash zone and fluctuation of water table section.
The technologies such as grouting pressure require can refer in gap《Marine traffic engineering concrete design specification》JTS 151-2011 and
《Marine traffic engineering concrete construction specification》Requirement construction in relation to post-tensioned prestressing beam slip casting in JTS 202-2011.
The vertical extension h1 of reinforced concrete sleeve can be according to the use of local hydrometeorology, geological conditions and harbour
It is required that according to《Port engineering Pile Foundation Code》The 6.3 anticorrosion relevant provisions of (JTS 167-4-2012) and《Harbour engineering steel knot
Structure anticorrosion technique specification》The regulation of (JTS 153-3) determines.When pile cover thickness h 2 can be installed according to beam in length and breadth pile cover stress by
It calculates and determines.
The beneficial effects of the invention are as follows：Steel-pipe pile can be effectively prevented, serious rust occurs in splash zone, fluctuation of water table section
The problem of erosion, structure type is simple, easily operated, and construction quality is guaranteed.Using the corrosion-resistant pile cover structure of the steel-pipe pile with
Traditional cast-in-situ steel reinforced concrete pile cover compares its cost ratio, is compared by taking the pile foundation of a pile diameter 1.5m wall thickness 18mm as an example
It is 1:1.04；
The invention is to ensure the safe and reliable of harbour and off-lying sea hydraulic structure steel tube pile structure and steel-pipe pile can be improved
In the corrosion resistance of splash zone and fluctuation of water table section, reduce or prevent the section steel-pipe pile harbour run during corrode after
Maintenance work, improve the efficiency of operation of harbour.After applying the present invention, steel-pipe pile is in splash zone, the use of fluctuation of water table section
Generally no less than 50 years service life.The present invention has in the STEEL TUBE PILE WHARF of port engineering and off-lying sea hydraulic structure steel tube pile structure
There is the dissemination of reality；
After applying the present invention, in addition steel tube pile structure need not increase the resistance to of steel-pipe pile in splash zone and fluctuation of water table section
Corrode wall thickness.It can be without anti-corrosion of steel pipe pile application and cathodic protection.Although for many years it was verified that port engineering and off-lying sea
In hydraulic structure engineering, it is in splash zone and the following water of fluctuation of water table section with the steel-pipe pile corrosion in foundation soil very
Slowly, the steel-pipe pile of usually this range still needs to that corresponding anticorrosive coating and cathodic protection etc. is taken to arrange according to the design requirement of structure
It applies.
Description of the drawings
Fig. 1 is the Plane Installation figure of pile cover structure of the present invention；
Fig. 2 is the installation cross-section diagram of pile cover structure of the present invention；
Fig. 3 is the prefabricated pile cover cross-section diagram of the present invention；
Fig. 4 is the prefabricated pile cover plan view of the present invention；
Fig. 5-1,5-2 are steel tube pile structure figure of the present invention, cross-section diagram；
Fig. 6 is the cast-in-place connector concrete structure plan view of the pile cover top longitudinal and transverse beam of harbour.
In figure：
1, steel-pipe pile 2, prefabricated pile cover and reinforced concrete sleeve
3, core grouted concrete 4, concrete sleeve underseal close clay and winding geotextile layer in steel-pipe pile
5, pile cover top anti-corrosion injected hole 6, anti-corrosion slip casting
7, pre-buried main reinforcement 8 in steel-pipe pile, stirrup on the outside of main reinforcement in steel-pipe pile
9, cast-in-place pile cover connector concrete 10, prefabricated crossbeam
11, prefabricated longeron 12, in length and breadth, the cast-in-place connector concrete of beam.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and detailed description：
As shown in Figures 1 to 6, a kind of steel-pipe pile pile cover structure, including steel-pipe pile, prefabricated pile cover and reinforced concrete soil suite
Pipe, concrete sleeve (bottom end surrounding) block clay winding geotextiles, reinforced concrete sleeve and steel between steel-pipe pile gap
Pressure injection anti-corrosion material (epoxy resin mortar) in gap between pile pile improves steel-pipe pile in splash zone and fluctuation of water table section
Anti-corrosion ability.
Prefabricated steel-pipe pile 1 is according to design requirement injection in a marine wherein Pile Foundation of Wharf.Prefabricated pile cover and reinforcing bar
Concrete sleeve 2 is the pile cover structure being sleeved at the top of steel-pipe pile, and effect is easy for the longitudinal and transverse beam both ends of harbour and is placed in pile cover
On.Core grouted concrete 3 in steel-pipe pile are that STEEL TUBE PILE WHARF is usually provided at a certain range of core grouted concrete of stake top, effect
It is so that pile foundation is connected with harbour superstructure by embedded bar.Concrete sleeve underseal closes clay and winding geotextiles 4,
Main purpose is the gap blocked between steel-pipe pile and concrete sleeve, prevents from generating spillage phenomenon when perfusion anti-corrosion material.So
Afterwards by pile cover top anti-corrosion injected hole 5, anti-corrosion slip casting 6, anti-corrosion slip casting are carried out to the gap between steel-pipe pile and concrete sleeve
Material is epoxy resin mortar.
Stirrup 8 on the outside of main reinforcement in pre-buried main reinforcement 7 and steel-pipe pile, is to be embedded in steel-pipe pile to fill core coagulation in steel-pipe pile
Reinforcing bar in soil 3, effect be by the sponson of reinforcing bar and prefabricated crossbeam 10, the protruding bar at 11 both ends of prefabricated longeron into
Row binding.Prefabricated crossbeam 10, prefabricated longeron 11 are to be mounted on 2 top of prefabricated pile cover and reinforced concrete sleeve according to design requirement
Harbour girder system structure, end there are protruding bar and steel-pipe pile in the sponson of pre-buried main reinforcement 7 bound, lead to
Cross cast-in-place pile cover connector concrete 9 and in length and breadth, the cast-in-place connector concrete 12 of beam connects into pile foundation and upper part girder system structure just
Property node.
The technologies such as grouting pressure require can refer in gap《Marine traffic engineering concrete design specification》JTS 151-2011 and
《Marine traffic engineering concrete construction specification》Requirement construction in relation to post-tensioned prestressing beam slip casting in JTS 202-2011.
The vertical extension h of reinforced concrete sleeve1It can be according to the use of local hydrometeorology, geological conditions and harbour
It is required that according to《Port engineering Pile Foundation Code》The 6.3 anticorrosion relevant provisions of (JTS 167-4-2012) and《Harbour engineering steel knot
Structure anticorrosion technique specification》The regulation of (JTS 153-3) determines.Pile cover thickness h2When can be installed according to beam in length and breadth pile cover stress by
It calculates and determines.
Claims (4)
1. a kind of steel-pipe pile pile cover structure, including：Prefabricated steel-pipe pile and harbour beam, in the prefabricated steel-pipe pile pre-buried main reinforcement and
Core grouted concrete, the main reinforcement outside are equipped with stirrup；The harbour beam is formed by prefabricated crossbeam, prefabricated longeron, the harbour
The longitudinal and transverse cast-in-place connector concrete of beam, it is characterized in that：Prefabricated pile cover and reinforced concrete soil suite are equipped at the top of prefabricated steel-pipe pile (1)
It manages (2), and passes through prefabricated steel-pipe pile (1) interior core grouted concrete (3) and cast-in-place pile cover connector concrete (9) and prefabricated steel-pipe pile
(1) it is rigidly connected, the reinforced concrete sleeve (2) blocks clay between bottom end circumference and the gap of prefabricated steel-pipe pile (1)
And geotextile layer (4) is wound on clay, the top preset of prefabricated pile cover has anti-corrosion injected hole (5).
2. a kind of steel-pipe pile pile cover structure according to claim 1, it is characterized in that：The prefabricated pile cover and armored concrete
Casing (2) is formed as one.
3. a kind of construction method of the pile cover structure of steel-pipe pile according to claim 1 raising steel-pipe pile corrosion resistance, including with
Lower step：
1) the prefabricated steel-pipe pile of live injection；
2) prefabricated pile cover and reinforced concrete sleeve are placed at the top of steel-pipe pile；
3) core grouted concrete in steel-pipe pile, cast-in-place pile cover connector concrete are poured into a mould；
4) gap between concrete sleeve bottom end part and steel-pipe pile is blocked under water with closure clay, and winding prevents
The geotextiles that clay falls off；
5) the preset anti-corrosion injected hole of the useful elder generation of pile cover pressure into the gap between steel-pipe pile and reinforced concrete sleeve is utilized
Anti-corrosion material is perfused；
6) on pile cover place prefabricated crossbeam, prefabricated longeron harbour girder system structure, by beam both ends there are protruding bar and code
The longitudinal and transverse cast-in-place connector concrete of beam makes itself and prefabricated steel-pipe pile, prefabricated pile cover and reinforced concrete sleeve form rigid connection
Structure.
4. the construction method according to claim 3 for improving steel-pipe pile corrosion resistance, it is characterized in that：Step 5) the anti-corrosion
Material is epoxy resin mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810788004.9A CN108755675A (en) | 2018-07-18 | 2018-07-18 | A kind of steel-pipe pile pile cover structure and the construction method for improving steel-pipe pile corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810788004.9A CN108755675A (en) | 2018-07-18 | 2018-07-18 | A kind of steel-pipe pile pile cover structure and the construction method for improving steel-pipe pile corrosion resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108755675A true CN108755675A (en) | 2018-11-06 |
Family
ID=63970454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810788004.9A Pending CN108755675A (en) | 2018-07-18 | 2018-07-18 | A kind of steel-pipe pile pile cover structure and the construction method for improving steel-pipe pile corrosion resistance |
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| Country | Link |
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| CN (1) | CN108755675A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656646A (en) * | 2019-03-04 | 2020-01-07 | 孟玉山 | Prefabricated pile cap for composite foundation and construction method thereof |
| CN112281817A (en) * | 2020-11-12 | 2021-01-29 | 上海市城市建设设计研究总院（集团）有限公司 | Steel precast pile construction method suitable for water level fluctuation area |
| CN110805031B (en) * | 2019-11-14 | 2021-04-16 | 广州市第二市政工程有限公司 | Cement mixing pile cap and construction method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656646A (en) * | 2019-03-04 | 2020-01-07 | 孟玉山 | Prefabricated pile cap for composite foundation and construction method thereof |
| CN110805031B (en) * | 2019-11-14 | 2021-04-16 | 广州市第二市政工程有限公司 | Cement mixing pile cap and construction method thereof |
| CN112281817A (en) * | 2020-11-12 | 2021-01-29 | 上海市城市建设设计研究总院（集团）有限公司 | Steel precast pile construction method suitable for water level fluctuation area |
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