CN108104117A - A kind of three-dimensional slip casting fin steel pipe pile foundation and its installation method - Google Patents
A kind of three-dimensional slip casting fin steel pipe pile foundation and its installation method Download PDFInfo
- Publication number
- CN108104117A CN108104117A CN201711316098.1A CN201711316098A CN108104117A CN 108104117 A CN108104117 A CN 108104117A CN 201711316098 A CN201711316098 A CN 201711316098A CN 108104117 A CN108104117 A CN 108104117A
- Authority
- CN
- China
- Prior art keywords
- slurry outlet
- steel pipe
- slip casting
- pile foundation
- fin
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- 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.)
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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
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- 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
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
Abstract
The invention discloses a kind of three-dimensional slip casting fin steel pipe pile foundation and its installation method, which includes pile body, and pile body is in hollow tubular structure, and the footpath of pile body is uniformly arranged several taper fins around；The installation method, including step 1：Feed pipe for mortar is closed, three-dimensional slip casting fin steel pipe pile foundation is longitudinally perpendicular in sea bed plane；Step 2：Three-dimensional slip casting fin steel pipe pile foundation is pressed into sea bed plane；Step 3：Feed pipe for mortar is opened, appropriate cement grout will be stirred and injected by conveying device in taper fin, cement grout will be by horizontal circumferential slurry outlet, horizontal radial slurry outlet, longitudinal slurry outlet outflow, and penetrates into three-dimensional slip casting fin steel pipe pile foundation surrounding soil；Step 4：After cement grout solidification, conveying device is removed.The reinforcing pile week of the present invention surface layer soil body in larger scope, effectively prevents from washing away, and realizes the effect that active defense washes away, reduces the horizontal amount of deflection in stake end of pile foundation, while has both plus the advantages of wing pile foundation effectively controls pile body to rotate.
Description
Technical field
The present invention relates to a kind of three-dimensional slip casting fin steel pipe pile foundation and its installation methods, it is ocean foundation scouring protection
Device belongs to field of ocean engineering.
Background technology
Steel pipe pile foundation is a kind of ocean basis, should do offshore platform, coastal waters wind power foundation extensively.Ocean basis exists
Under wave current souring, basic surrounding soil is lost in, and basis effectively buried depth reduces, and foundation bearing capacity is caused seriously to reduce.
Existing ocean foundation scouring protection is mainly the protection of overlying object, and basic surrounding a certain range places stone, steel plate, geotextiles, will
Basic surrounding soil covering, to mitigate the local scour around basis, reaches the purpose of protection soil layer.But the wash preventing method
Construction cost is high, belongs to the passive protection measure to soil layer around basis, and soil body self-strength does not change, once overlying object quilt
It destroys, foundation scouring effect will be more serious.For example, notification number is the Chinese invention patent of 103382919 A of CN, it is open
" invention provides a scouring control cover of an offshore wind power foundation ", prevents from washing away lid by overlying, is exactly a kind of to cover the passive of overlying object
Wash preventing method.
Conventional cement paste around pile method grout mixing is only limitted to pile body neighborhood soil layer, it is possible to increase frictional force between Pile Soil carries
High bearing capacity of pile foundation, but can not the effective larger range of soil body in reinforcing pile week surface layer, it is impossible to solve what is washed away around pile foundation
Problem.
The content of the invention
Above-mentioned in order to solve the problems, such as, the invention discloses a kind of three-dimensional slip casting fin steel pipe pile foundation and its installations
Method, specific technical solution are as follows：
A kind of three-dimensional slip casting fin steel pipe pile foundation, including pile body, pile body is in hollow tubular structure, and the footpath of the pile body is around
Several taper fins are uniformly arranged, each taper fin includes a head cover and two side plates, the side plate are triangular in shape
Shape, one side of two side plates is opposite to be abutted against, and another side is fixed with pile body, and top margin is connected with top seal, forms internal cavities
Taper fin, the top cap central is provided with the feed pipe for mortar with the perforation of the cavity of taper fin, and the side plate is provided with several and goes out
Starch hole,
After the pile body is vertically-mounted, all taper fins are in same level height, and feed pipe for mortar is straight up, cover board with
Horizontal plane is parallel.
The slurry outlet includes horizontal circumferential slurry outlet, horizontal radial slurry outlet and longitudinal slurry outlet, the horizontal radial
Slurry outlet and longitudinal slurry outlet are distributed at two side plate docking of each taper fin, and the longitudinal direction slurry outlet is located at horizontal footpath
Below to slurry outlet, the horizontal circumferential slurry outlet distribution is applied on side plate.
The taper fin is located at the upper position of pile body.
The pile body and taper fin select steel to be made, head cover and pile body, head cover and side plate, the side plate of each taper fin
It is tightly connected between pile body and side plate using seamless welding.
A kind of installation method of three-dimensional slip casting fin steel pipe pile foundation, including following operating procedure：
Step 1：Feed pipe for mortar is closed, three-dimensional slip casting fin steel pipe pile foundation keeps longitudinally perpendicular in sea bed under hoisting machine tool effect
Plane；
Step 2：Three-dimensional slip casting fin steel pipe pile foundation is pressed into sea bed plane by the way of conventional piling, until taper fin is complete
Enter entirely in the soil body of sea bed plane, at this time head cover and sea bed the plane water where same level or slightly below sea bed plane
Plane；
Step 3：Feed pipe for mortar is opened, appropriate cement grout will be stirred and injected by conveying device in taper fin, cement grout will
By horizontal circumferential slurry outlet, horizontal radial slurry outlet, longitudinal slurry outlet outflow, and penetrate into three-dimensional slip casting fin steel pipe pile foundation week
It encloses in the soil body；
Step 4：After cement grout solidification, conveying device is removed.
The beneficial effects of the invention are as follows：
The present invention adds the taper fin with injected hole around the pile body of top, using the guidance quality of three direction injected holes, reinforces
To stake week horizontal radial, horizontal circumferential and longitudinal soil body injection cement grout, the defects of effectively solving passive scour protection with
And routine cement paste around pile method grout mixing is small, it is impossible to the problem of effectively preventing from washing away.The present invention not only can be with reinforcing pile
The soil body of all surface layers in larger scope effectively prevents from washing away, and realizes the effect that active defense washes away, and can reduce pile foundation
The horizontal amount of deflection in stake end, while have both plus wing pile foundation the advantages of effectively pile body being controlled to rotate.
The present invention, pile body surrounding soil will have larger intensity, and reinforcing area is more than pile body basis neighborhood current scour shadow
Ring scope.
Description of the drawings
Fig. 1 is the three dimensional structure diagram of the present invention；
Fig. 2 is the longitudinal cut-away view of three-dimensional of the present invention；
Fig. 3 is longitudinal cut-away view of the present invention；
Fig. 4 is the top view of the present invention；
List is marked in figure：1. pile body, 2. feed pipe for mortar, 3. head covers, 4. side plates, 5. horizontal circumferential slurry outlets, 6. is horizontal
Radial direction slurry outlet, 7. longitudinal slurry outlets, 8. soil bodys, 9. taper fins.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated.It should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.
Fig. 1 is the three dimensional structure diagram of the present invention；Fig. 2 is the longitudinal cut-away view of three-dimensional of the present invention；Fig. 3 is of the invention
Longitudinal cut-away view；Fig. 4 is the top view of the present invention；In figure component names is marked to be followed successively by：Pile body 1, feed pipe for mortar 2, head cover 3, side
Plate 4, horizontal circumferential direction slurry outlet 5, horizontal radial slurry outlet 6, longitudinal slurry outlet 7, the soil body 8, taper fin 9.
With reference to attached drawing as it can be seen that this three-dimensional slip casting fin steel pipe pile foundation, including pile body, pile body is in hollow tubular structure, institute
The footpath for stating pile body is uniformly arranged several taper fins around, and each taper fin includes a head cover and two side plates,
The side plate shape triangular in shape, one side of two side plates is opposite to be abutted against, and another side is fixed with pile body, and top margin connects with top seal
It connects, forms the taper fin of internal cavities, the top cap central is provided with the feed pipe for mortar with the perforation of the cavity of taper fin, the side plate
It is provided with several slurry outlets.After the pile body is vertically-mounted, all taper fins are in same level height, and feed pipe for mortar
Straight up, cover board is parallel with horizontal plane.The present invention, empty in taper fin, for containing cement mortar, the shape of taper fin can drop
Resistance and raising present invention stability in sea bed of the low present invention in sinking installation process.
The slurry outlet includes horizontal circumferential slurry outlet, horizontal radial slurry outlet and longitudinal slurry outlet, the horizontal radial
Slurry outlet and longitudinal slurry outlet are distributed at two side plate docking of each taper fin, and the longitudinal direction slurry outlet is located at horizontal footpath
Below to slurry outlet, the horizontal circumferential slurry outlet distribution is applied on side plate.Horizontal circumferential direction slurry outlet, horizontal radial slurry outlet
The slurries in taper fin is enabled to overflow towards taper fin surrounding with longitudinal slurry outlet, it can be by cement mortar in each direction
Liquid solidification is fixed.
The taper fin is located at the upper position of pile body.Pile body top is connected with upper ocean structure, taper fin head cover with
On pile body be respectively positioned on more than sea bed plane, the pile body below taper fin head cover is embedded among seabed soil；Taper fin can be with
Realization is three-dimensional to be oriented to the grouting and reinforcing stake week shallow-layer soil body, realizes that active defense washes away, improves pile body bearing capacity, and has both and add the wing
The advantages of pile foundation effectively controls pile body to rotate.
The pile body and taper fin select steel to be made, head cover and pile body, head cover and side plate, the side plate of each taper fin
It is tightly connected between pile body and side plate using seamless welding.Steel ensure the intensity of the present invention, and seamless welding improves cone
The sealing performance and bonding strength of shape fin.
A kind of installation method of three-dimensional slip casting fin steel pipe pile foundation, including following operating procedure：
Step 1：Feed pipe for mortar is closed, three-dimensional slip casting fin steel pipe pile foundation keeps longitudinally perpendicular in sea bed under hoisting machine tool effect
Plane；
Step 2：Three-dimensional slip casting fin steel pipe pile foundation is pressed into sea bed plane by the way of conventional piling, until taper fin is complete
Enter entirely in the soil body of sea bed plane, at this time head cover and sea bed the plane water where same level or slightly below sea bed plane
Plane；
Step 3：Feed pipe for mortar is opened, appropriate cement grout will be stirred and injected by conveying device in taper fin, cement grout will
By horizontal circumferential slurry outlet, horizontal radial slurry outlet, longitudinal slurry outlet outflow, and penetrate into three-dimensional slip casting fin steel pipe pile foundation week
It encloses in the soil body；
Step 4：After cement grout solidification, conveying device is removed.
By this method, three-dimensional slip casting fin steel pipe pile foundation of the invention can be firmly installed to sea bed plane, and
After theing cement solidifies, improve and be more than pile body basis neighborhood current scour shadow with the fixed stability of the soil body, reinforcing area around pile body
Ring scope.
The technical means disclosed in the embodiments of the present invention is not limited to the technical means disclosed in the above technical means, and is further included
Formed technical solution is combined by more than technical characteristic.
Using above-mentioned desirable embodiment according to the invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determine its technical scope according to right.
Claims (5)
1. a kind of three-dimensional slip casting fin steel pipe pile foundation, including pile body, pile body is in hollow tubular structure, it is characterised in that the stake
The footpath of body is uniformly arranged several taper fins around, and each taper fin includes a head cover and two side plates, described
Side plate shape triangular in shape, one side of two side plates is opposite to be abutted against, and another side is fixed with pile body, and top margin is connected with top seal,
The taper fin of internal cavities is formed, the top cap central is provided with the feed pipe for mortar with the perforation of the cavity of taper fin, and the side plate is set
Several slurry outlets are equipped with,
After the pile body is vertically-mounted, all taper fins are in same level height, and feed pipe for mortar is straight up, cover board with
Horizontal plane is parallel.
2. a kind of three-dimensional slip casting fin steel pipe pile foundation according to claim 1, it is characterised in that the slurry outlet includes
Horizontal circumferential direction slurry outlet, horizontal radial slurry outlet and longitudinal slurry outlet, the horizontal radial slurry outlet and longitudinal slurry outlet are divided equally
Cloth is at two side plate docking of each taper fin, and the longitudinal direction slurry outlet is located at below horizontal radial slurry outlet, the level
Circumferential pulp pore size distribution is applied on side plate.
3. a kind of three-dimensional slip casting fin steel pipe pile foundation according to claim 1, it is characterised in that the taper fin is located at
The upper position of pile body.
4. a kind of three-dimensional slip casting fin steel pipe pile foundation according to claim 1, it is characterised in that the pile body and taper
Fin selects steel to be made, and is adopted between the head cover and pile body of each taper fin, head cover and side plate, side plate and pile body and side plate
It is tightly connected with seamless welding.
5. a kind of installation method of three-dimensional slip casting fin steel pipe pile foundation, it is characterised in that including following operating procedure：
Step 1：Feed pipe for mortar is closed, three-dimensional slip casting fin steel pipe pile foundation keeps longitudinally perpendicular in sea bed under hoisting machine tool effect
Plane；
Step 2：Three-dimensional slip casting fin steel pipe pile foundation is pressed into sea bed plane by the way of conventional piling, until taper fin is complete
Enter entirely in the soil body of sea bed plane, at this time head cover and sea bed the plane water where same level or slightly below sea bed plane
Plane；
Step 3：Feed pipe for mortar is opened, appropriate cement grout will be stirred and injected by conveying device in taper fin, cement grout will
By horizontal circumferential slurry outlet, horizontal radial slurry outlet, longitudinal slurry outlet outflow, and penetrate into three-dimensional slip casting fin steel pipe pile foundation week
It encloses in the soil body；
Step 4：After cement grout solidification, conveying device is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316098.1A CN108104117A (en) | 2017-12-12 | 2017-12-12 | A kind of three-dimensional slip casting fin steel pipe pile foundation and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316098.1A CN108104117A (en) | 2017-12-12 | 2017-12-12 | A kind of three-dimensional slip casting fin steel pipe pile foundation and its installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108104117A true CN108104117A (en) | 2018-06-01 |
Family
ID=62208478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711316098.1A Pending CN108104117A (en) | 2017-12-12 | 2017-12-12 | A kind of three-dimensional slip casting fin steel pipe pile foundation and its installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108104117A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116289954A (en) * | 2023-04-27 | 2023-06-23 | 中国电建集团华东勘测设计研究院有限公司 | Submarine pile foundation compaction grouting equipment and implementation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204040024U (en) * | 2014-07-24 | 2014-12-24 | 王继忠 | The pile making device of concrete pile |
| CN105200984A (en) * | 2015-08-25 | 2015-12-30 | 河海大学 | Novel ocean engineering pile foundation capable of reducing pile body deflection and manufacturing method thereof |
| CN205934905U (en) * | 2016-04-05 | 2017-02-08 | 张东文 | Novel photovoltaic power plant basis steel -pipe pile |
| CN107254875A (en) * | 2017-07-10 | 2017-10-17 | 浙江大学 | Pile for prestressed pipe pile grouting constructing device and method |
-
2017
- 2017-12-12 CN CN201711316098.1A patent/CN108104117A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204040024U (en) * | 2014-07-24 | 2014-12-24 | 王继忠 | The pile making device of concrete pile |
| CN105200984A (en) * | 2015-08-25 | 2015-12-30 | 河海大学 | Novel ocean engineering pile foundation capable of reducing pile body deflection and manufacturing method thereof |
| CN205934905U (en) * | 2016-04-05 | 2017-02-08 | 张东文 | Novel photovoltaic power plant basis steel -pipe pile |
| CN107254875A (en) * | 2017-07-10 | 2017-10-17 | 浙江大学 | Pile for prestressed pipe pile grouting constructing device and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116289954A (en) * | 2023-04-27 | 2023-06-23 | 中国电建集团华东勘测设计研究院有限公司 | Submarine pile foundation compaction grouting equipment and implementation method |
| CN116289954B (en) * | 2023-04-27 | 2023-08-11 | 中国电建集团华东勘测设计研究院有限公司 | Submarine pile foundation compaction grouting equipment and implementation method |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180601 |
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| RJ01 | Rejection of invention patent application after publication |