CN115726310A - Anti-scouring device for steel pipe pile - Google Patents
Anti-scouring device for steel pipe pile Download PDFInfo
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- CN115726310A CN115726310A CN202211362806.6A CN202211362806A CN115726310A CN 115726310 A CN115726310 A CN 115726310A CN 202211362806 A CN202211362806 A CN 202211362806A CN 115726310 A CN115726310 A CN 115726310A
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Abstract
The invention discloses a steel pipe pile anti-scouring device, which comprises: the directional pulley is movably connected with the outer side wall of the steel pipe pile and can move along the axial direction of the steel pipe pile; the outer circle of the annular reinforcing piece is connected with the guide buoyancy piece through a guide cable. The annular reinforcing piece is sleeved on the outer side of the steel pipe pile, so that the water flow can be prevented from scouring soil at the fixed part of the steel pipe pile no matter how the direction of the water flow changes, the fixed depth of the steel pipe pile is ensured, and the installation stability is improved; the directional pulleys are arranged on the outer side of the steel pipe pile, so that the annular reinforcing piece is convenient to arrange; the anti-scouring function is completed by additionally arranging an annular reinforcing piece without directly changing the soil, so that the durability is improved; through setting up the direction buoyancy spare, make things convenient for the equipment of annular reinforcement and the position adjustment of annular reinforcement.
Description
Technical Field
The invention relates to the field of water building engineering, in particular to a steel pipe pile anti-scouring device.
Background
The steel pipe pile is widely applied to ocean and offshore engineering such as a cross-sea bridge, a port and a wharf, an offshore oil platform, an offshore wind turbine and the like due to the characteristics of high bearing capacity, good flexibility, high construction speed and the like, and develops into an important basic form of a building (structure) on water. However, many problems are often encountered in the use of the steel pipe pile. Under the influence of factors such as ocean waves, ocean currents, tidal currents and the like, the steel pipe piles block the flow of seawater, the water flow on the incident surface flows downwards, the flow speed is accelerated, and horseshoe-shaped vortexes are formed; the back flow surface forms a tail vortex due to the streaming action of the seawater. When the surface of the seabed is mainly sandy soil, the U-shaped vortex and the tail vortex cause the soil mass around the pile to swell, the sand digging phenomenon occurs, and a larger scouring pit is formed. The formation of the scouring pit reduces the depth of the pile into the soil, the friction force on the side of the pile and the resistance of the soil on the side of the pile are lost, and finally, the horizontal bearing capacity and the vertical bearing capacity of the pile foundation are reduced, so that the installation stability is influenced.
The existing scouring protection is divided into an active protection method and a passive protection method, different protection measures are provided in documents and patents, but most of the scouring protection methods are used for scouring bridge and river bank structures, and the active protection methods are influenced by the ocean complex environment and cannot achieve the expected scouring protection effect. Passive protection is mostly used for constructing surface soil mass filling protection structures, and the durability of the protection structures is deeply concerned.
In view of the above problems in the prior art, there is no effective solution.
Disclosure of Invention
In order to solve the problems, the invention provides an anti-scouring device for a steel pipe pile, which is characterized in that an annular reinforcing member is arranged on the outer side of the steel pipe pile, so that the annular reinforcing member covers the seabed when the steel pipe pile is driven into the seabed, the downward flow of head-on water flow is blocked, the forming possibility of a scouring pit is reduced, and the problem of how to protect the steel pipe pile in the seabed is solved; through swing joint directional pulley on the steel-pipe pile outer wall, make the interior circle of annular reinforcement be connected with directional pulley, the excircle is connected with direction buoyancy spare, solves the problem of how conveniently laying the inoxidizing coating.
In order to achieve the above object, the present invention provides an anti-scour device for a steel pipe pile, comprising: the directional pulley is movably connected with the outer side wall of the steel pipe pile and can move along the axial direction of the steel pipe pile; and the outer circle of the annular reinforcing piece is connected with the guide buoyancy piece through a guide cable.
Further optionally, the annular reinforcing member is an annular net frame; the annular net rack comprises an inner ring, an outer ring and a framework which are arranged on the same plane; the outer ring and the inner ring are coaxially arranged, the diameter of the inner ring is smaller than that of the outer ring, and the outer ring is arranged on the outer side of the inner ring; the inner ring is sleeved on the outer side of the steel pipe pile and connected with the directional pulley, and the outer ring is connected with the guide buoyancy piece through a guide cable; the framework is fixed between the inner ring and the outer ring.
Further optionally, the annular net rack is provided with vegetation.
Further optionally, the framework comprises a plurality of transverse ribs and a plurality of longitudinal ribs; one end of each longitudinal rib is connected with the inner ring, the other end of each longitudinal rib is connected with the outer ring, and the plurality of longitudinal ribs are uniformly distributed between the inner ring and the outer ring; two ends of each transverse rib are respectively connected with two adjacent longitudinal ribs, and a plurality of transverse ribs are uniformly distributed between every two adjacent longitudinal ribs.
Further optionally, the annular reinforcing member is an annular metal plate; the inner circle of the annular metal plate is sleeved on the outer side of the steel pipe pile and is connected with the directional pulley; the excircle of the annular metal plate is connected with the guide buoyancy piece through a guide cable.
Further optionally, the annular metal plate includes a plurality of fan-shaped splice plates, and the side edges of the plurality of fan-shaped splice plates are sequentially connected to form the annular metal plate.
Further optionally, the multiple fan-shaped splicing plates are connected through a buckle.
Further optionally, the annular stiffener is an annular membrane; the inner circle of the annular film is sleeved on the outer side of the steel pipe pile and connected with the directional pulley, and the outer circle of the annular film is connected with the guide buoyancy piece through the guide cable and used for enabling the annular film to be opened by adjusting the position of the guide buoyancy piece.
Further optionally, a hook is arranged at the top of the directional pulley, and the hook is connected with the adjusting cable.
Further optionally, the guiding buoyancy member is a guiding buoyancy barrel.
The technical scheme has the following beneficial effects: the annular reinforcing piece is sleeved on the outer side of the steel pipe pile, so that the water flow can be prevented from scouring soil at the fixed part of the steel pipe pile no matter how the direction of the water flow changes, the fixed depth of the steel pipe pile is ensured, and the installation stability is improved; the directional pulleys are arranged on the outer side of the steel pipe pile, so that the annular reinforcing piece is convenient to arrange; the anti-scouring function is completed by additionally arranging an annular reinforcing piece without directly changing the soil, so that the durability is improved; through setting up direction buoyancy spare, make things convenient for the equipment of annular reinforcement and the position adjustment of annular reinforcement.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an anti-scour device for a steel pipe pile according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an anti-scour device for a steel pipe pile according to another embodiment of the present invention.
Reference numerals are as follows: 1-steel pipe pile 2-annular reinforcement 201-inner ring 202-outer ring 203-framework 204-vegetation 3-seabed
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the prior art, most of active protection methods adopt a method of driving a plurality of steel pipe piles in front of main steel pipe piles, so that the scouring force of water flow on the soil where the main steel pipe piles are located is reduced, and the method cannot achieve the expected effect due to the fact that the ocean environment is complex and the water flow direction is easy to change. The passive protection method is mostly a method of constructing the bottom soil of the steel pipe pile, and the method has low durability and is difficult to maintain the effect under the long-term washing of water flow.
In order to solve the above problem, an embodiment of the present invention provides an anti-scour device for a steel pipe pile, fig. 1 is a schematic structural diagram of the anti-scour device for a steel pipe pile provided in the embodiment of the present invention, and as shown in fig. 1, the device includes: the directional pulley is movably connected with the outer side wall of the steel pipe pile 1 and can move along the axial direction of the steel pipe pile 1; annular reinforcement 2, the outside of steel-pipe pile 1 is located to the interior circle cover of annular reinforcement 2 to be connected with directional pulley, the excircle of annular reinforcement 2 is passed through the direction hawser and is connected with direction buoyancy.
As shown in figure 1, steel-pipe pile 1 sinks to the demarcation position through beating into or static pressure, and annular reinforcement 2 covers is established in the steel-pipe pile 1 outside, and annular reinforcement 2 is transferred to seabed 3 from the sea on, consolidates the soil of seabed 3, avoids rivers to wash out the soil around steel-pipe pile 1, guarantees the fixed degree of depth of steel-pipe pile 1, improves the stability of its installation.
In order to facilitate the arrangement of the annular reinforcing piece 2, the outer side wall of the steel pipe pile 1 is movably connected with a directional pulley, and the directional pulley can move along the axial direction of the steel pipe pile 1, namely the directional pulley can move up and down on the side wall of the steel pipe pile 1. The inner circle of the annular reinforcing member 2 is connected with a directional pulley, and the up-and-down movement of the annular reinforcing member 2 can be controlled by moving the directional pulley.
As an optional implementation manner, in order to improve the stability of the arrangement of the annular reinforcing member 2, a plurality of directional pulleys are uniformly arranged on the outer wall of the steel pipe pile 1, and the plurality of directional pulleys are respectively connected with the inner circle of the annular reinforcing member 2 to jointly control the up-and-down movement of the annular reinforcing member 2. Preferably, three directional pulleys are uniformly arranged on the outer wall of the steel pipe pile 1.
Furthermore, the outer circle of the annular reinforcing part 2 is connected with the guide buoyancy part through a guide cable, when the annular reinforcing part 2 is not installed, the annular reinforcing part 2 is supported through the guide buoyancy part, so that the annular reinforcing part 2 can be conveniently installed on the sea surface, when the annular reinforcing part 2 needs to be arranged, the guide buoyancy part is moved out of the bottom of the reinforcing part, and the annular reinforcing part 2 is slowly placed through the guide cable connected to the guide buoyancy part until the annular reinforcing part 2 is placed on the surface of the seabed 3.
As an alternative embodiment, a plurality of guiding floating pieces are uniformly connected to the outer circle of the annular reinforcing member 2, so that the stability of the annular reinforcing member 2 during assembly is improved.
As an alternative implementation manner, fig. 2 is a schematic structural diagram of an anti-scour device for a steel pipe pile according to another embodiment of the present invention, and as shown in fig. 2, the annular reinforcing member 2 is an annular net frame; the annular net rack comprises an inner ring 201, an outer ring 202 and a framework 203 which are arranged on the same plane; the outer ring 202 and the inner ring 201 are coaxially arranged, the diameter of the inner ring 201 is smaller than that of the outer ring 202, and the outer ring 202 is arranged on the outer side of the inner ring 201; the inner ring 201 is sleeved on the outer side of the steel pipe pile 1 and is connected with the directional pulley, and the outer ring 202 is connected with the guide buoyancy piece through a guide cable; the skeleton 203 is fixed between the inner ring 201 and the outer ring 202.
Have skeleton 203 between inner ring 201 and the outer loop 202, skeleton 203 constitutes latticed structure, and the size of each net is less, can reduce rivers when rivers erode the dynamics of erodeing to the fixed soil of steel-pipe pile 1, avoids appearing drawing out the sand phenomenon, improves steel-pipe pile 1's installation stability.
Preferably, the framework 203 is a steel wire mesh, the inner ring 201 and the outer ring 202 are metal rings, and the framework 203 is connected with the inner ring 201 and the outer ring 202 through welding.
As an alternative embodiment, shown in fig. 2, a ring net frame is provided with vegetation 204.
In order to further improve the soil-fixing ability, the annular net rack is covered with the vegetation 204, and the type of the vegetation 204 can be determined according to the specific fixed soil type. The mesh size of the annular net support is such that the roots of the vegetation 204 extend without causing the entire vegetation 204 to fall. Therefore, when the annular net rack is placed at the preset position, the roots of the vegetations 204 are pricked into the soil, the soil fixing capacity is further improved, and biological protection is completed.
As an alternative embodiment, the framework 203 comprises a plurality of transverse ribs and a plurality of longitudinal ribs; one end of each longitudinal rib is connected with the inner ring 201, the other end of each longitudinal rib is connected with the outer ring 202, and the plurality of longitudinal ribs are uniformly distributed between the inner ring 201 and the outer ring 202; two ends of each transverse rib are respectively connected with two adjacent longitudinal ribs, and a plurality of transverse ribs are uniformly distributed between every two adjacent longitudinal ribs.
As an alternative mode, the transverse ribs and the longitudinal members are connected by welding or are fixed by clamping.
As an alternative embodiment, the annular reinforcing member 2 is an annular metal plate; the inner circle of the annular metal plate is sleeved on the outer side of the steel pipe pile 1 and is connected with the directional pulley; the excircle of the annular metal plate is connected with the guide buoyancy piece through a guide cable.
The annular reinforcing member 2 can also be an annular metal plate, the inner circle of the annular metal plate is sleeved outside the steel pipe pile 1 and is connected with the directional pulley, and a plurality of clamping holes can be drilled on the outer circle for connecting the guide mooring rope. Or a metal ring can be fixed on the outer side of the excircle to bind and connect the guide cable and the metal ring.
As an optional implementation manner, the annular metal plate includes a plurality of fan-shaped splicing plates, and the side edges of the plurality of fan-shaped splicing plates are sequentially connected to form the annular metal plate.
For the cloth of making things convenient for annular metal sheet to put, this embodiment designs holistic annular metal sheet for the components of a whole that can function independently structure, can divide into the annular metal sheet multi-disc fan-shaped splice plate, and the side of a plurality of fan-shaped splice plates links to each other and can constitute annular metal sheet. So, when the installation, can directly transfer after 1 outsides with the concatenation of multi-disc fan-shaped splice plate in the steel-pipe pile, needn't establish the installation from the top cover of steel-pipe pile 1 again, improved the efficiency of laying.
Preferably, the annular metal plate is made of stainless steel.
As an alternative embodiment, the fan-shaped splice plate is 4 pieces.
As an optional implementation mode, the fan-shaped splicing plates are connected through a buckle.
For the installation of making things convenient for annular metal sheet, connect through the buckle between the fan-shaped splice plate of multi-disc in this embodiment, so, only need correspond the mounted position of multi-disc fan-shaped splice plate well, can be through buckle with multi-disc fan-shaped splice plate fixed connection. Of course, if the construction conditions allow, the purpose of fixed connection can also be realized by welding a plurality of fan-shaped splicing plates.
As an alternative embodiment, the annular stiffener 2 is an annular membrane; the inner circle of the annular film is sleeved on the outer side of the steel pipe pile 1 and connected with the directional pulley, and the outer circle of the annular film is connected with the guide buoyancy piece through the guide cable and used for enabling the annular film to be opened by adjusting the position of the guide buoyancy piece.
The annular reinforcement 2 can also be an annular film, the inner circle of the annular reinforcement is sleeved outside the steel pipe pile 1 and connected with the directional pulley, and the position close to the outer circle can be connected with the guide cable in a mode of punching a plurality of connecting holes. Because the annular film is light in weight and easy to be scoured and deformed by water flow, the annular film can be tensioned by the guide cable by adjusting the position of the guide buoyancy piece, so that the annular film can be furthest expanded, and the area of the annular film is covered on the seabed around the steel pipe pile as large as possible.
As an alternative, the material of the annular film may be a PE film.
As an alternative embodiment, the top of the directional pulley is provided with a hook, which is connected to the adjusting cable.
In order to conveniently control the movement of the directional pulley, a hook is fixed at the top of the directional pulley, and a constructor can adjust the movement position of the directional pulley by controlling an adjusting cable.
As an alternative embodiment, the guiding buoyancy member is a guiding buoyancy barrel.
The guide floats the with low costs of bucket, and the top surface that a plurality of guides float the bucket can be comparatively stable for the plane holds annular reinforcement 2, and constructor can float the bucket through the convenient control of hawser equally.
The technical scheme has the following beneficial effects: the annular reinforcing piece is sleeved on the outer side of the steel pipe pile, so that the water flow can be prevented from scouring soil at the fixed part of the steel pipe pile no matter how the direction of the water flow changes, the fixed depth of the steel pipe pile is ensured, and the installation stability is improved; the directional pulleys are arranged on the outer side of the steel pipe pile, so that the annular reinforcing piece is convenient to arrange; the anti-scouring function is completed by additionally arranging an annular reinforcing piece instead of directly changing the soil, so that the durability is improved; through setting up direction buoyancy spare, make things convenient for the equipment of annular reinforcement and the position adjustment of annular reinforcement.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a steel-pipe pile anti-scouring device which characterized in that includes:
the directional pulley is movably connected with the outer side wall of the steel pipe pile and can move along the axial direction of the steel pipe pile;
and the outer circle of the annular reinforcing piece is connected with the guide buoyancy piece through a guide cable.
2. An anti-scour device for a steel pipe pile according to claim 1, wherein:
the annular reinforcing piece is an annular net rack;
the annular net rack comprises an inner ring, an outer ring and a framework which are arranged on the same plane;
the outer ring and the inner ring are coaxially arranged, the diameter of the inner ring is smaller than that of the outer ring, and the outer ring is arranged on the outer side of the inner ring;
the inner ring is sleeved outside the steel pipe pile and connected with the directional pulley, and the outer ring is connected with the guide buoyancy piece through a guide cable;
the framework is fixed between the inner ring and the outer ring.
3. An anti-scour device for a steel pipe pile according to claim 2, wherein:
and the annular net rack is provided with vegetation.
4. An anti-scour device for a steel pipe pile according to claim 3, wherein:
the framework comprises a plurality of transverse ribs and a plurality of longitudinal ribs;
one end of each longitudinal rib is connected with the inner ring, the other end of each longitudinal rib is connected with the outer ring, and the plurality of longitudinal ribs are uniformly distributed between the inner ring and the outer ring;
two ends of each transverse rib are respectively connected with two adjacent longitudinal ribs, and a plurality of transverse ribs are uniformly distributed between every two adjacent longitudinal ribs.
5. An anti-scour device for a steel pipe pile according to claim 1, wherein:
the annular reinforcing piece is an annular metal plate;
the inner circle of the annular metal plate is sleeved on the outer side of the steel pipe pile and is connected with the directional pulley;
the excircle of the annular metal plate is connected with the guide buoyancy piece through a guide cable.
6. An anti-scour device for a steel pipe pile according to claim 1, wherein:
the annular reinforcing piece is an annular metal plate;
the inner circle of the annular metal plate is sleeved on the outer side of the steel pipe pile and is connected with the directional pulley;
the excircle of the annular metal plate is connected with the guide buoyancy piece through a guide cable.
7. An anti-scour device for a steel pipe pile according to claim 6, wherein:
the fan-shaped splicing plates are connected through a buckle.
8. An anti-scour device for a steel pipe pile according to claim 1, wherein:
the annular reinforcing member is an annular film;
the inner circle of the annular film is sleeved on the outer side of the steel pipe pile and connected with the directional pulley, and the outer circle of the annular film is connected with the guide buoyancy piece through the guide cable and used for enabling the annular film to be opened by adjusting the position of the guide buoyancy piece.
9. An anti-scour device for a steel-pipe pile according to any one of claims 1 to 8, comprising:
and a hook is arranged at the top of the directional pulley and is connected with an adjusting cable.
10. An anti-scour device for a steel pipe pile according to any one of claims 1 to 8, wherein:
the guide buoyancy piece is a guide buoyancy barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211362806.6A CN115726310A (en) | 2022-11-02 | 2022-11-02 | Anti-scouring device for steel pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211362806.6A CN115726310A (en) | 2022-11-02 | 2022-11-02 | Anti-scouring device for steel pipe pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115726310A true CN115726310A (en) | 2023-03-03 |
Family
ID=85294361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211362806.6A Pending CN115726310A (en) | 2022-11-02 | 2022-11-02 | Anti-scouring device for steel pipe pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115726310A (en) |
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2022
- 2022-11-02 CN CN202211362806.6A patent/CN115726310A/en active Pending
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