CN214460360U - Prestressed concrete tubular pile suitable for sea water - Google Patents
Prestressed concrete tubular pile suitable for sea water Download PDFInfo
- Publication number
- CN214460360U CN214460360U CN202120011724.1U CN202120011724U CN214460360U CN 214460360 U CN214460360 U CN 214460360U CN 202120011724 U CN202120011724 U CN 202120011724U CN 214460360 U CN214460360 U CN 214460360U
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- China
- Prior art keywords
- pile
- diameter
- small
- tubular pile
- prestressed concrete
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- 239000013535 sea water Substances 0.000 title claims abstract description 26
- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 32
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 14
- 239000012528 membrane Substances 0.000 abstract description 8
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a prestressed concrete pipe pile suitable for seawater, which comprises a large-diameter pipe pile and a plurality of small-diameter solid piles, wherein the small-diameter solid piles are uniformly arranged on the upper end surface of the large-diameter pipe pile, and reinforcing steel bars of the large-diameter pipe pile extend out of the upper end surface to serve as internal reinforcing steel bars of the small-diameter solid piles; the surface of the large-diameter tubular pile and the surface of the small-diameter solid pile are both coated with semipermeable membranes. The surface of pellicle is equipped with a plurality of stirrups, and the stirrup embraces the surface of major diameter tubular pile and minor diameter solid pile tightly, along vertical align to grid. The utility model discloses can effectively reduce the effort of wave to the pile foundation, the ability of wave moment of flexure is resisted to reinforcing pile foundation, reduces the corruption of sea water to the pile foundation in addition, has promoted suitability and the security of concrete pipe pile foundation in abominable sea state.
Description
Technical Field
The utility model belongs to the technical field of the precast pile, concretely relates to prestressed concrete tubular pile suitable for sea water.
Background
The traditional reinforced concrete pile has wide application in pile foundation engineering, particularly for offshore engineering, the pile foundation is not the second choice for foundation, however, seawater environment media can erode the traditional reinforced concrete pile. Seawater aggressive media can not only act on concrete, but also permeate into the concrete to influence the steel bars, so that the performance is reduced and the service life is prolonged due to the corrosion of the steel bars. The pile of offshore engineering is in the sea for a long time, and the corrosion is much stronger than that of the pile in the land and shore engineering soil, so the service life of the traditional reinforced concrete pile of offshore engineering can be greatly shortened, and the normal use of offshore construction facilities is influenced.
On the other hand, the diameter of the concrete prefabricated pipe pile is large, and the large water facing area enables the actual maximum bearing load of the wave force pile foundation to be always added with the ordered water flow vortex caused by the circular section of the pile to fall off, so that the strong swinging of the pipe pile foundation is caused; because the bending moment of the pile body caused by the wave force can reach a peak value near the surface under the seabed, the phenomenon of pile body fracture easily occurs near the surface of the seabed in consideration of the fact that the strength of a common pipe pile is not changed along the length of the pile;
as the foundation of offshore sea area buildings, the normal use and engineering safety of the upper structure are directly affected by the swing and fracture of the pipe pile foundation caused by the action of wave force, and the corrosion weakening of seawater on the pipe pile foundation is a hidden danger which cannot be ignored.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a not enough to prior art exists, the utility model aims at providing a prestressed concrete tubular pile can effectively reduce the effort of wave to the pile foundation, and the ability of wave moment of flexure is resisted to the reinforcing pile foundation, reduces the corruption of sea water to the pile foundation in addition, has promoted suitability and the security of concrete tubular pile foundation in abominable sea condition.
The technical scheme is as follows: in order to realize the purpose of the utility model, the utility model discloses a technical scheme as follows:
a prestressed concrete pipe pile suitable for seawater comprises a large-diameter pipe pile and a plurality of small-diameter solid piles, wherein the small-diameter solid piles are uniformly arranged on the upper end face of the large-diameter pipe pile, and reinforcing steel bars of the large-diameter pipe pile extend out of the upper end face to serve as internal reinforcing steel bars of the small-diameter solid piles; the surface of the large-diameter tubular pile and the surface of the small-diameter solid pile are both coated with semipermeable membranes.
Furthermore, the surface of pellicle is equipped with a plurality of stirrups, and the stirrup is held tightly the surface of major diameter tubular pile and minor diameter solid pile, along vertical align to grid.
Furthermore, a flange plate is arranged at the joint of the large-diameter tubular pile and the small-diameter solid pile, a sleeve is arranged at the lower end of the flange plate and used for sleeving the upper end of the large-diameter tubular pile, and a through hole penetrating through the flange plate is arranged on the flange plate and used for sleeving the small-diameter solid pile; the sleeve and the flange plate are of an integrated structure.
Furthermore, a flange is arranged on the upper end face of the through hole in the flange.
Furthermore, a plurality of rib plates are arranged between the flange plate and the sleeve.
Furthermore, the number of the rib plates is 3-6, and the rib plates are uniformly arranged along the circumference of the flange plate.
And further, a sealing end cover is arranged at the bottom of the large-diameter tubular pile.
Has the advantages that: compared with the prior art, the utility model has the advantages of it is following: the utility model discloses a many minor diameter solid piles compare the major diameter tubular pile of ordinary unchangeable diameter, when guaranteeing the vertical rigidity of pile foundation, are showing the upstream face that has reduced the pile foundation to can effectively reduce the wave force of acting on the pile body.
The semipermeable membrane is coated on the surface of the whole pile body, so that chloride ions in seawater are directly prevented from permeating into the pile body through the holes in the concrete in a mode of increasing the anti-corrosion capability of the concrete pile to the chloride ions in a seawater environment, seawater is prevented from reaching internal corrosion reinforcing steel bars through the holes in the concrete, the corrosion resistance of the pile body concrete is improved, the oxidation resistance and the corrosion resistance of the reinforcing steel bars in the pile are improved, and the service life of the reinforcing steel bars is prolonged. Thereby enabling the pile body concrete to work for a long time without damage; thereby improving the durability of the marine structure. And the construction is convenient, and partial working procedures and engineering cost are reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a top view of fig. 1.
Detailed Description
The present invention will be further clarified by the following embodiments, which are implemented on the premise of the technical solution of the present invention, with reference to the attached drawings, and it should be understood that these embodiments are only used for illustrating the present invention and are not used for limiting the scope of the present invention.
As shown in fig. 1 and 2, the utility model discloses a prestressed concrete tubular pile suitable for sea water, including major diameter tubular pile 1 and a plurality of minor diameter solid pile 2, the bottom of major diameter tubular pile 1 install below the sea bed surface, major diameter tubular pile 1's top exceeds the sea bed surface, a plurality of minor diameter solid piles 2 set up the up end at major diameter tubular pile 1 uniformly, specifically do: the steel bar a of the large-diameter tubular pile 1 extends out of the upper end face to serve as an internal steel bar a of the small-diameter solid pile 2. Therefore, the small-diameter solid pile 2 is convenient to position and is firmly connected with the large-diameter tubular pile 1. The top of the small-diameter solid pile 2 is higher than the sea surface, and the bottom of the small-diameter solid pile 2 is positioned below the surface of the sea bed. The utility model discloses a many minor diameter solid piles 2 compare the major diameter tubular pile 1 of ordinary invariable diameter, when guaranteeing the vertical rigidity of pile foundation, are showing the upstream face that has reduced the pile foundation to can effectively reduce the wave power of acting on the pile body.
The surfaces of the large-diameter tubular pile 1 and the small-diameter solid pile 2 are both coated with semipermeable membranes (not shown in the figure). The semipermeable membrane is coated on the outer surface of the pile body and is used for filtering chloride ions in seawater; the semipermeable membrane only allows water molecules to penetrate through, is made of special high polymer materials, has hydrophilicity, only allows water molecules to pass through, and has a filtering effect on chloride ions, so that the chloride ions in seawater are directly prevented from penetrating through the holes in the concrete towards the interior of the pile body, the anti-corrosion capability of the concrete pile to the chloride ions under the seawater environment is improved in the mode, seawater is prevented from reaching internal corrosion reinforcing steel bars through the holes in the concrete, and the corrosion resistance of the pile body concrete is improved.
Preferably, a plurality of stirrups 4 are arranged on the outer surface of the semi-permeable membrane, and the stirrups 4 tightly hold the surfaces of the large-diameter tubular pile 1 and the small-diameter solid pile 2 and are uniformly arranged along the longitudinal direction so as to fix and protect the semi-permeable membrane.
Preferably, a flange 5 is arranged at the joint of the large-diameter tubular pile 1 and the small-diameter solid pile 2, a sleeve 6 is arranged at the lower end of the flange 5 and used for sleeving the upper end of the large-diameter tubular pile 1, and a through hole 7 penetrating through the flange 5 and used for sleeving the small-diameter solid pile 2. The sleeve 6 and the flange 5 are of an integral structure, and the flange 5 is used for protecting the joint of the large-diameter tubular pile 1 and the small-diameter solid pile 2, and the joint is easy to break due to large stress.
Preferably, a flange 8 is provided on the upper end face of the through hole 7 in the flange 5.
Preferably, a plurality of ribs 9 are arranged between the flange 5 and the sleeve 6, and the number of the ribs 9 is 3-6 and is uniformly arranged along the circumference of the flange 5.
Preferably, a sealing end cover 10 is arranged at the bottom of the large-diameter tubular pile 1 to prevent seawater from entering the large-diameter tubular pile 1.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a prestressed concrete tubular pile suitable for sea water which characterized in that: the pile comprises a large-diameter tubular pile (1) and a plurality of small-diameter solid piles (2), wherein the small-diameter solid piles (2) are uniformly arranged on the upper end face of the large-diameter tubular pile (1), and reinforcing steel bars of the large-diameter tubular pile (1) extend out of the upper end face to serve as internal reinforcing steel bars of the small-diameter solid piles (2); major diameter tubular pile (1) and minor diameter solid pile (2) surface all cladding have the pellicle.
2. The prestressed concrete pipe pile suitable for use in seawater according to claim 1, wherein: the outer surface of pellicle is equipped with a plurality of stirrups (4), and stirrup (4) hold tightly the surface of major diameter tubular pile (1) and minor diameter solid pile (2), along vertical align to grid.
3. The prestressed concrete pipe pile suitable for use in seawater according to claim 1, wherein: a flange (5) is arranged at the joint of the large-diameter tubular pile (1) and the small-diameter solid pile (2), a sleeve (6) is arranged at the lower end of the flange (5) and used for sleeving the upper end of the large-diameter tubular pile (1), and a through hole (7) which penetrates through the flange (5) and used for sleeving the small-diameter solid pile (2) is formed in the flange; the sleeve (6) and the flange plate (5) are of an integral structure.
4. The prestressed concrete pipe pile suitable for use in seawater according to claim 3, wherein: and a flange (8) is arranged on the upper end surface of the through hole (7) on the flange plate (5).
5. The prestressed concrete pipe pile suitable for use in seawater according to claim 3, wherein: a plurality of ribbed plates (9) are arranged between the flange plate (5) and the sleeve (6).
6. The prestressed concrete pipe pile suitable for use in seawater according to claim 5, wherein: the number of the ribbed plates (9) is 3-6, and the ribbed plates are uniformly arranged along the circumference of the flange plate (5).
7. The prestressed concrete pipe pile suitable for use in seawater according to claim 1, wherein: and a sealing end cover (10) is arranged at the bottom of the large-diameter tubular pile (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120011724.1U CN214460360U (en) | 2021-01-04 | 2021-01-04 | Prestressed concrete tubular pile suitable for sea water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120011724.1U CN214460360U (en) | 2021-01-04 | 2021-01-04 | Prestressed concrete tubular pile suitable for sea water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214460360U true CN214460360U (en) | 2021-10-22 |
Family
ID=78138227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120011724.1U Expired - Fee Related CN214460360U (en) | 2021-01-04 | 2021-01-04 | Prestressed concrete tubular pile suitable for sea water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214460360U (en) |
-
2021
- 2021-01-04 CN CN202120011724.1U patent/CN214460360U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211022 |
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| CF01 | Termination of patent right due to non-payment of annual fee |