CN112211190A - FRP sleeve and steel pipe prefabricated assembled combined spiral pile and pile forming method - Google Patents
FRP sleeve and steel pipe prefabricated assembled combined spiral pile and pile forming method Download PDFInfo
- Publication number
- CN112211190A CN112211190A CN202011010407.4A CN202011010407A CN112211190A CN 112211190 A CN112211190 A CN 112211190A CN 202011010407 A CN202011010407 A CN 202011010407A CN 112211190 A CN112211190 A CN 112211190A
- Authority
- CN
- China
- Prior art keywords
- pile
- pipe
- steel pipe
- frp
- connecting plate
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 78
- 239000010959 steel Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229920000642 polymer Polymers 0.000 claims abstract description 28
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 24
- 239000004567 concrete Substances 0.000 claims abstract description 11
- 239000002689 soil Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 13
- 239000002131 composite material Substances 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 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
- E02D5/56—Screw 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
- E02D5/24—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
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
-
- 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
- E02D5/72—Pile shoes
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)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an FRP sleeve and steel pipe prefabricated assembled combined screw pile and a pile forming method, wherein the combined screw pile comprises a plurality of pile bodies which are connected and assembled; each pile body comprises a pile body pipe and a connecting plate arranged at the end part and used for connecting the pile bodies; the pile body pipe comprises a steel pipe, an FRP pipe is sleeved outside the steel pipe, and a polymer mortar containing cavity for pile forming is arranged between the FRP pipe and the steel pipe; the connecting plate is provided with a notch and a connecting steel bar; the two sections of pile bodies are connected by a pin through a notch, and the pile body of the first section of pile is fixed with a helical blade; the combined screw pile is also provided with a torque application connector. The invention is prefabricated and formed, assembled on site, and can fully utilize the characteristics of light weight, high strength, good sealing property and good corrosion resistance of the FRP composite material when forming a pile, and the inside and the outside of the steel pipe are protected by the polymer and the concrete, so that the steel pipe is not easy to corrode and can be safely used in a high-salt corrosion environment; and the pile-forming operation is convenient.
Description
Technical Field
The invention relates to a pile foundation component for foundation engineering, in particular to an FRP sleeve and steel pipe prefabricated assembled combined spiral pile which can be used in the pile foundation of engineering structures in severe environments such as ocean, humidity, salinization and the like; the invention also relates to a pile forming method.
Background
Under high salt corrosion environment such as ocean, the durability problem of piling bar and reinforced concrete pile is very outstanding, because of contain higher salinity or acid ion in the soil body under the high salt corrosion environment, can make the quick corrosion of steel-pipe pile, bearing capacity can decay rapidly, although reinforcing bar has the protection of concrete in the reinforced concrete pile, nevertheless high chloride ion content environment makes the concrete to reinforcing bar guard action greatly reduced, reinforcing bar can corrode rapidly after losing the concrete protection in the concrete, consequently, pile foundation anticorrosion under the high salt corrosion environment is vital.
Therefore, the research shows that the material has light weight, high strength, good sealing performance and good corrosion resistance, can be applied to a pile-forming material under the high-salt corrosion environment, can effectively solve the corrosion prevention problem in the engineering, and has good economic and social benefits.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides an FRP sleeve and steel pipe prefabricated assembled combined spiral pile which is ingenious in structural design, light in weight, high in strength, good in sealing performance and good in corrosion resistance.
The invention also provides a pile forming method of the FRP sleeve and steel pipe prefabricated assembled combined spiral pile.
The technical problem to be solved by the present invention is achieved by the following technical means. The invention discloses an FRP sleeve and steel pipe prefabricated assembled combined screw pile, which comprises a plurality of pile bodies which are connected and assembled;
each pile body comprises a pile body pipe and a connecting plate arranged at the end part and used for connecting the pile bodies;
the pile body pipe comprises a steel pipe, an FRP pipe is sleeved outside the steel pipe, and a polymer mortar containing cavity for pile forming is arranged between the FRP pipe and the steel pipe; the connecting plate is made of stainless steel plates, a plate hole in the middle and a connecting notch at the edge are arranged on the connecting plate, and a plurality of connecting reinforcing steel bars in a polymer mortar containing cavity for pile forming are vertically arranged on one side plate surface of the connecting plate; pouring polymer mortar in the polymer mortar containing cavity for pile forming, and connecting the FRP pipe, the steel pipe and the connecting plates at the upper end and the lower end of each pile body into a whole;
the connection between the two sections of pile bodies is realized by adopting a pin through a notch, and the pin is matched with the notch in shape; the pile body at the bottom is a first section pile, and the other pile bodies are lengthened sections; the pile head of the first section of pile is fixedly provided with a pile tip, and the pile body of the first section of pile is fixedly provided with a helical blade;
and a torque key groove is arranged on the connecting plate at the top of each section of pile body.
The invention relates to an FRP sleeve and steel pipe prefabricated assembled combined spiral pile, which further adopts the preferable technical scheme that: the pile tip is made of steel and is fixedly connected with a pile tip steel plate; the pile tip steel plate is provided with a notch, and the pile tip steel plate and a connecting plate at the end part of the first section of pile are connected into a whole by pins.
The invention relates to an FRP sleeve and steel pipe prefabricated assembled combined spiral pile, which further adopts the preferable technical scheme that: the pin is preferably I-shaped, Z-shaped or frame-shaped.
The invention also discloses a pile forming method of the FRP sleeve and steel pipe prefabricated assembled combined spiral pile, which comprises the following steps:
(1) preparing each accessory of an FRP sleeve steel pipe prefabricated assembled type combined spiral pile, wherein an FRP pipe and a spiral blade of a first section of pile are integrally manufactured through a vacuum introduction molding process; the FRP pipe of the lengthened pile is manufactured in a winding or pultrusion mode;
(2) welding and fixing the pile tip and the pile tip steel plate;
(3) installing and positioning the connecting plate at the bottom end part of the first section of pile, the FRP pipe and the steel pipe, pouring polymer mortar into the polymer mortar containing cavity, filling the space between the steel pipe and the FRP pipe tightly, putting the connecting plate at the upper end part into the cavity, maintaining the connecting plate, and forming the steel pipe, the FRP pipe and the connecting plate into a whole by utilizing the connecting capacity of the polymer mortar;
(4) the pile tip steel plate is connected with the connecting plate at the lower end part of the first section of pile by a pin;
(5) applying torque to screw the helical blade into the soil through the matching of the torque applying connector and the connecting plate;
(6) assembling the lengthened piles by adopting the method in the step (3), wherein each two sections of piles are connected through a notch on the connecting plate by using a pin;
(7) and after all the lengthened piles are assembled and formed, pouring concrete in the steel pipe according to the requirement.
In the pile-forming method, a further preferable technical scheme is as follows: in the step (4), the torsion applying connector comprises a torsion applying plate body with a disc hole in the middle, a torsion applying pipe and a torsion applying convex key tooth are respectively installed on two sides of the torsion applying plate body, and a torque key groove matched with the torsion applying convex key tooth and arranged on a connecting plate at the top of each section of pile body are inserted and meshed with the torsion applying convex key tooth and used for transmitting torque.
Compared with the prior art, the invention has the following beneficial effects:
1. the FRP sleeve steel pipe prefabricated assembled combined spiral pile is prefabricated and formed firstly, and is assembled on site, the characteristics of light weight, high strength, good sealing property and good corrosion resistance of an FRP composite material can be fully utilized when the pile is formed, and the inside and the outside of the steel pipe are protected by the polymer and the concrete, so that the steel pipe is not easy to corrode and can be safely used in a high-salt corrosion environment; and the pile-forming operation is convenient.
2. The thermal expansion coefficient of the FRP composite material is similar to that of the polymer mortar material, and the FRP, the polymer mortar and the steel pipe can work together well; the FRP composite material has good designability, and the helical blade is convenient to form; the spiral blade is made of FRP composite material, so that the strength is high, the soil cutting efficiency is high, and the pile body can conveniently rotate like a soil body;
3. the torque key groove is meshed with the torque applying convex key teeth through the matched connection of the arranged pin and the notch, so that the connection is simple, reliable and convenient, and the working efficiency is high; the pile intersegment connecting device is provided with the connecting reinforcement materials, so that the connecting quality is good, the integral rigidity is high, the industrialized production and the field installation can be realized, the engineering quality is ensured, the labor efficiency is improved, and the production construction industrialization degree is high.
4. The inside and the outside of the steel pipe are constrained by polymer, concrete filling and FRP pipe materials, so that the stability and the bearing capacity of the steel pipe are greatly enhanced.
Drawings
FIG. 1 is a schematic structural view of the composite screw pile of the present invention;
FIG. 2 is a schematic cross-sectional structure of the pile body;
FIG. 3 is a schematic view of a connection structure between pile bodies;
FIG. 4 is a schematic view of a connection structure of the connection plate;
FIG. 5 is a schematic top view of the torque applying connector;
FIG. 6 is a schematic cross-sectional view of a torque-applying connector;
FIG. 7 is a schematic view of a pile tip structure;
FIG. 8 is a schematic view of one construction in which the pins effect the connection between the connecting plates;
FIG. 9 is another structural schematic view of a pin effecting connection between connecting plates.
Detailed Description
The following further describes particular embodiments of the present invention to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to the right thereof.
Example (b):
referring to fig. 1, an FRP sleeve steel pipe prefabricated assembled composite screw pile: the combined screw pile comprises a plurality of pile bodies 1 which are connected and assembled;
each pile body 1 comprises a pile body pipe and a connecting plate 4 arranged at the end part and used for connecting the pile bodies 1; the specific structure of the connecting plate 4 is shown in fig. 4. And a torque key groove 11 is arranged on the connecting plate 4 at the top of each section of pile body 1.
Referring to fig. 1 and 2, the pile body pipe comprises a steel pipe 6, an FRP pipe 5 is sleeved outside the steel pipe 6, and a polymer mortar containing cavity 7 for forming a pile is arranged between the FRP pipe 5 and the steel pipe 6;
referring to fig. 3, the connecting plate 4 is made of a stainless steel plate, a plate hole 12 in the middle and a connecting notch 9 at the edge are formed in the connecting plate 4, and a plurality of connecting steel bars 8 in the polymer mortar containing cavity 7 for pile forming are vertically arranged on the plate surface at one side of the connecting plate 4; pouring polymer mortar in the polymer mortar containing cavity 7 for pile forming, and connecting the FRP pipe 5 and the steel pipe 6 of each pile body 1 and the connecting plates 4 at the upper end and the lower end into a whole;
the two sections of pile bodies 1 are connected through a pin 10 and a matched notch 9 (by fixing two connecting plates 4), and the pin 10 is matched with the notch 9 in shape;
the bottommost pile body 1 is a first section pile, and the rest pile bodies 1 are lengthened sections; a pile tip 2 is fixedly arranged on the pile head of the first section of pile, and a helical blade 3 is fixed on the pile body of the first section of pile, as shown in the figure 1;
referring to fig. 7, the pile tip 2 is made of steel and is fixedly connected with a pile tip steel plate 17; the pile tip steel plate 17 is also provided with a notch 9, and the pile tip steel plate 17 is connected with the connecting plate 4 at the end part of the first section of pile into a whole by a pin 10.
Referring to fig. 3, the pin 10 may be i-shaped, may also be designed as a Z-shape or frame shape, and the notch 9 may be shaped to match the shape of the pin 10, as shown with reference to fig. 8 and 9.
The piling process of FRP sleeve pipe and steel pipe prefabricated assembled combined spiral pile includes the following steps:
(1) preparing each accessory of an FRP sleeve steel pipe prefabricated assembled type combined spiral pile, wherein an FRP pipe and a spiral blade of a first section of pile are integrally manufactured through a vacuum introduction molding process; the FRP pipe of the lengthened pile is manufactured in a winding or pultrusion mode;
(2) welding and fixing the pile tip and the pile tip steel plate;
(3) installing and positioning the connecting plate at the bottom end part of the first section of pile, the FRP pipe and the steel pipe, pouring polymer mortar into the polymer mortar containing cavity, filling the space between the steel pipe and the FRP pipe tightly, putting the connecting plate at the upper end part into the cavity, maintaining the connecting plate, and forming the steel pipe, the FRP pipe and the connecting plate into a whole by utilizing the connecting capacity of the polymer mortar;
(4) the pile tip steel plate is connected with the connecting plate at the lower end part of the first section of pile by a pin;
(5) applying torque to screw the helical blade into the soil through the matching of the torque applying connector and the connecting plate; the torsion applying connector comprises a torsion applying plate body 15 with a disc hole 13 in the middle, a torsion applying pipe 16 and a torsion applying convex key tooth 14 are respectively installed on two sides of the torsion applying plate body 15, and a torque key groove 11 matched with the torsion applying convex key tooth 14 and arranged on a connecting plate 4 at the top of each section of pile body 1 are inserted and meshed with the torsion applying convex key tooth 14 and are used for transmitting torque; as shown with reference to figures 5 and 6,
(6) assembling the lengthened piles by adopting the method in the step (3), wherein each two sections of piles are connected through a notch on the connecting plate by using a pin;
(7) and after all the lengthened piles are assembled and formed, pouring concrete in the steel pipe according to the requirement.
The FRP sleeve steel pipe prefabricated assembled combined spiral pile of the embodiment is prefabricated and formed firstly, and is assembled on site, the characteristics of light weight, high strength, good sealing property and good corrosion resistance of an FRP composite material can be fully utilized during pile forming, double protection of polymer and concrete is provided inside and outside the steel pipe, the steel pipe is not easy to corrode, and the FRP sleeve steel pipe prefabricated assembled combined spiral pile can be safely used in a high-salt corrosion environment; and the pile-forming operation is convenient.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (5)
1. The utility model provides a FRP sleeve pipe and prefabricated assembled combination screw pile of steel pipe which characterized in that: the combined screw pile comprises a plurality of pile bodies which are connected and assembled;
each pile body comprises a pile body pipe and a connecting plate arranged at the end part and used for connecting the pile bodies;
the pile body pipe comprises a steel pipe, an FRP pipe is sleeved outside the steel pipe, and a polymer mortar containing cavity for pile forming is arranged between the FRP pipe and the steel pipe; the connecting plate is made of stainless steel plates, a plate hole in the middle and a connecting notch at the edge are arranged on the connecting plate, and a plurality of connecting reinforcing steel bars in a polymer mortar containing cavity for pile forming are vertically arranged on one side plate surface of the connecting plate; pouring polymer mortar in the polymer mortar containing cavity for pile forming, and connecting the FRP pipe, the steel pipe and the connecting plates at the upper end and the lower end of each pile body into a whole;
the connection between the two sections of pile bodies is realized by adopting a pin through a notch, and the pin is matched with the notch in shape; the pile body at the bottom is a first section pile, and the other pile bodies are lengthened sections; the pile head of the first section of pile is fixedly provided with a pile tip, and the pile body of the first section of pile is fixedly provided with a helical blade;
and a torque key groove is arranged on the connecting plate at the top of each section of pile body.
2. The FRP sleeve and steel pipe prefabricated assembled combined screw pile as claimed in claim 1, wherein: the pile tip is made of steel and is fixedly connected with a pile tip steel plate; the pile tip steel plate is provided with a notch, and the pile tip steel plate and a connecting plate at the end part of the first section of pile are connected into a whole by pins.
3. The FRP sleeve and steel pipe prefabricated assembled combined screw pile according to claim 1 or 2, which is characterized in that: the pin is I-shaped, Z-shaped or frame-shaped.
4. A pile-forming method for FRP sleeve and steel pipe prefabricated assembled combined screw pile according to claim 1, 2 or 3 is characterized by comprising the following steps:
preparing each accessory of an FRP sleeve steel pipe prefabricated assembled type combined spiral pile, wherein an FRP pipe and a spiral blade of a first section of pile are integrally manufactured through a vacuum introduction molding process; the FRP pipe of the lengthened pile is manufactured in a winding or pultrusion mode;
welding and fixing the pile tip and the pile tip steel plate;
installing and positioning the connecting plate at the bottom end part of the first section of pile, the FRP pipe and the steel pipe, pouring polymer mortar into the polymer mortar containing cavity, filling the space between the steel pipe and the FRP pipe tightly, putting the connecting plate at the upper end part into the cavity, maintaining the connecting plate, and forming the steel pipe, the FRP pipe and the connecting plate into a whole by utilizing the connecting capacity of the polymer mortar;
the pile tip steel plate is connected with the connecting plate at the lower end part of the first section of pile by a pin;
applying torque to screw the helical blade into the soil through the matching of the torque applying connector and the connecting plate;
assembling the lengthened piles by adopting the method in the step (3), wherein each two sections of piles are connected through a notch on the connecting plate by using a pin;
and after all the lengthened piles are assembled and formed, pouring concrete in the steel pipe according to the requirement.
5. The pile forming method according to claim 4, wherein in the step (4), the torsion applying connector comprises a torsion applying plate body with a disc hole in the middle, a torsion applying pipe and a torsion applying convex key tooth are respectively arranged on two sides of the torsion applying plate body, and a torque key groove matched with the torsion applying convex key tooth and arranged on a connecting plate at the top of each section of the pile body are inserted and meshed with the torsion applying convex key tooth for transmitting torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011010407.4A CN112211190A (en) | 2020-09-23 | 2020-09-23 | FRP sleeve and steel pipe prefabricated assembled combined spiral pile and pile forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011010407.4A CN112211190A (en) | 2020-09-23 | 2020-09-23 | FRP sleeve and steel pipe prefabricated assembled combined spiral pile and pile forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112211190A true CN112211190A (en) | 2021-01-12 |
Family
ID=74051005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011010407.4A Pending CN112211190A (en) | 2020-09-23 | 2020-09-23 | FRP sleeve and steel pipe prefabricated assembled combined spiral pile and pile forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112211190A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220098814A1 (en) * | 2020-09-26 | 2022-03-31 | Jiangsu Ocean University | Frp composite material pile prepared by frp composite material and preparation and pile forming methods |
| CN115748692A (en) * | 2022-12-07 | 2023-03-07 | 江苏海洋大学 | Prefabricated ultrahigh-performance concrete pressure grouting screw pile and construction process |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201531020U (en) * | 2009-09-23 | 2010-07-21 | 诺斯曼能源科技(北京)有限公司 | Blade drill pipe steel pile special for a surface solar power station |
| KR20110139482A (en) * | 2010-06-23 | 2011-12-29 | 한국건설기술연구원 | Ocean pile having frp pipe for splash zone corrosion protection and construction method thereof |
| CN102312426A (en) * | 2011-07-12 | 2012-01-11 | 苗启松 | Prefabricated rotary drilling compound pile and construction method thereof |
| CN204385731U (en) * | 2014-12-25 | 2015-06-10 | 宿迁力引实业有限公司 | Prestressed concrete pipe pile X-type pin connector |
| CN204418165U (en) * | 2014-12-26 | 2015-06-24 | 浙江工业大学 | Prestressed concrete pipe pile I shape joint |
| KR20150075404A (en) * | 2015-06-15 | 2015-07-03 | (주)스마텍엔지니어링 | Composite Pile with PHC Pile and Steel Tubular Pile, and Connecting Apparatus for such Composite Pile |
| CN204780889U (en) * | 2015-06-05 | 2015-11-18 | 王献敏 | Prestressed concrete pipe pile connects |
| CN105386443A (en) * | 2015-10-19 | 2016-03-09 | 广西大学 | FRP pipe and thick-wall steel pipe compounding hollow recycled concrete pile |
| CN105386442A (en) * | 2015-10-19 | 2016-03-09 | 广西大学 | FRP wrapped prestress recycled concrete tubular pile |
| CN205369220U (en) * | 2015-12-26 | 2016-07-06 | 贾慧斌 | Stake of anticorrosive ground of light FRP |
| CN211171930U (en) * | 2019-10-25 | 2020-08-04 | 南京金宸建筑设计有限公司 | Bolt type connecting structure for prefabricated hollow uplift pile |
-
2020
- 2020-09-23 CN CN202011010407.4A patent/CN112211190A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201531020U (en) * | 2009-09-23 | 2010-07-21 | 诺斯曼能源科技(北京)有限公司 | Blade drill pipe steel pile special for a surface solar power station |
| KR20110139482A (en) * | 2010-06-23 | 2011-12-29 | 한국건설기술연구원 | Ocean pile having frp pipe for splash zone corrosion protection and construction method thereof |
| CN102312426A (en) * | 2011-07-12 | 2012-01-11 | 苗启松 | Prefabricated rotary drilling compound pile and construction method thereof |
| CN204385731U (en) * | 2014-12-25 | 2015-06-10 | 宿迁力引实业有限公司 | Prestressed concrete pipe pile X-type pin connector |
| CN204418165U (en) * | 2014-12-26 | 2015-06-24 | 浙江工业大学 | Prestressed concrete pipe pile I shape joint |
| CN204780889U (en) * | 2015-06-05 | 2015-11-18 | 王献敏 | Prestressed concrete pipe pile connects |
| KR20150075404A (en) * | 2015-06-15 | 2015-07-03 | (주)스마텍엔지니어링 | Composite Pile with PHC Pile and Steel Tubular Pile, and Connecting Apparatus for such Composite Pile |
| CN105386443A (en) * | 2015-10-19 | 2016-03-09 | 广西大学 | FRP pipe and thick-wall steel pipe compounding hollow recycled concrete pile |
| CN105386442A (en) * | 2015-10-19 | 2016-03-09 | 广西大学 | FRP wrapped prestress recycled concrete tubular pile |
| CN205369220U (en) * | 2015-12-26 | 2016-07-06 | 贾慧斌 | Stake of anticorrosive ground of light FRP |
| CN211171930U (en) * | 2019-10-25 | 2020-08-04 | 南京金宸建筑设计有限公司 | Bolt type connecting structure for prefabricated hollow uplift pile |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220098814A1 (en) * | 2020-09-26 | 2022-03-31 | Jiangsu Ocean University | Frp composite material pile prepared by frp composite material and preparation and pile forming methods |
| US11655605B2 (en) * | 2020-09-26 | 2023-05-23 | Jiangsu Ocean University | FRP composite material pile prepared by FRP composite material and preparation and pile forming methods |
| CN115748692A (en) * | 2022-12-07 | 2023-03-07 | 江苏海洋大学 | Prefabricated ultrahigh-performance concrete pressure grouting screw pile and construction process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112211190A (en) | FRP sleeve and steel pipe prefabricated assembled combined spiral pile and pile forming method | |
| CN109881665B (en) | High-performance prefabricated UHPC-PHC combined pile integrated structure and preparation method thereof | |
| CN218292294U (en) | Shear wall with connecting mechanism | |
| CN208136920U (en) | A kind of triangle prestressing force foundation pit supporting pile and its connection structure | |
| CN216713825U (en) | Formwork-supporting-free construction structure for edge constructional column | |
| CN215165839U (en) | Novel shaft lock catch ring beam | |
| CN114508092A (en) | Prefabricated glass fiber reinforced plastic corrugated sandwich sheet pile and assembling method thereof | |
| CN215977351U (en) | Reinforced framework foundation structure and supporting mechanism | |
| CN212801655U (en) | Assembled cross cable shaft | |
| CN206815330U (en) | A kind of corrosion-resistant corner cut square pile of pre-tensioning system partially prestressed concrete | |
| CN209384243U (en) | A kind of prestressing force support pile and piling wall | |
| CN2339648Y (en) | Connecting device for beam and column of industriatized constructed reinforced concrete building structural frame | |
| CN217419668U (en) | Connecting structure of wing-shaped support pile | |
| CN216809866U (en) | Bolt type quick mechanical joint for prestressed pipe pile connection details | |
| CN216615793U (en) | Prestressed concrete sheet pile and assembled soil retaining structure thereof | |
| CN212477692U (en) | Reinforcing pile for building foundation reinforcement | |
| CN213926246U (en) | Concrete pile connection structure | |
| CN219752974U (en) | FRP pipe-steel-concrete combined pier | |
| CN210002525U (en) | novel concrete water-saving groove | |
| CN109235444A (en) | A kind of prismatic prestressing force support pile, piling wall and its construction method | |
| CN108374422A (en) | A kind of triangle prestressing force foundation pit supporting pile and its connection structure | |
| CN218643386U (en) | Combined steel sheet pile supporting structure | |
| CN220908368U (en) | Corrosion-resistant concrete pipe pile structure | |
| CN218622293U (en) | Anti-pulling mechanical connection node of steel pipe pile and foundation slab | |
| CN216892443U (en) | Post-tensioning method prestressed mini-pile foundation pit supporting structure |
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: 20210112 |