Floating suspension type jacket high-pile wharf structure suitable for ultra-large water depth and construction method of floating suspension type jacket high-pile wharf structure

Abstract

The invention discloses a floating suspension type jacket high-pile wharf structure suitable for ultra-large water depth and a construction method, and belongs to the technical field of high-pile wharfs. The structure comprises a jacket, a pile foundation and an upper structure; the lower part of the upper structure is connected with a pile foundation; the jacket is installed on the lower end face of the upper structure and connected to the pile foundation. The upper structure comprises a sleeve box type pile cap, a cross beam, a longitudinal beam and a laminated panel; the sleeve box type pile cap is installed on the upper end face of the pile foundation. The longitudinal beam system is installed on the upper end face of the sleeve box type pile cap. The cross beams are mounted between the adjacent longitudinal beam systems; and the laminated panel is flatly laid on the surface layer of the upper structure. The structure adapts to a large-water-depth and large-flow-velocity environment by exerting the structural advantages of the structure, and the structure is small in underwater construction work amount, high in assembly degree, small in environmental influence, short in construction period and low in engineering investment.

Description

Technical Field

[0001] The invention belongs to the technical field of high-pile docks, and in particular relates to a floating-suspended jacket high-pile dock structure suitable for ultra-deep water and a construction method. Background Art

[0002] A high-pile wharf is a common wharf structure, which is supported by a series of long piles driven into the foundation, and on which a platform or deck is laid for ships to dock and cargo to be loaded and unloaded. High-pile wharfs are suitable for areas with deep water and poor geological conditions (such as soft soil layers), and are particularly suitable for places such as container terminals and bulk cargo terminals that require a large amount of loading and unloading operations. When constructing a wharf under soft foundation conditions with a water depth of more than 50m and a flow rate of 2m / s, the design must fully consider the influence of various adverse factors such as rising and falling tides, hydraulic scouring, and water vortexes.

[0003] In traditional wharf structure design, the free length of pile foundation and horizontal displacement of structure under deep water and easy scouring conditions are often reduced by restoring the bank slope to meet the design requirements of pile stability during construction and position during service life. This structural type has disadvantages, such as large underwater engineering volume, long construction period, large engineering investment, and influence on water flow.

[0004] In the prior art, Chinese patent CN118498280A (publication date August 16, 2024) discloses a high-pile wharf structure suitable for large water level differences, which belongs to the field of high-pile wharves, and includes pile foundations, crossbeams, longitudinal beams, and panels. The crossbeams include lower crossbeams and upper crossbeams, which are connected to the upper end of the pile foundation through the lower crossbeam. The upper crossbeam is arranged on the lower crossbeam and is connected to the longitudinal beam. A panel is arranged above the upper crossbeam and the longitudinal beam to form the main structure of the high-pile wharf. Further, by arranging pairs of connecting parts on the sides of the upper crossbeam and installing dampers between the connecting parts, a high-pile wharf structure suitable for large water level differences is formed.

[0005] Although the dampers involved in the invention can effectively absorb vibration energy, they may age or be damaged over time and require regular inspection and replacement. The introduction of dampers and other additional components may increase the initial construction cost. Although the invention claims to reduce the difficulty of construction, there may still be certain technical challenges in the actual construction process, especially in deep water areas.

[0006] Therefore, it is an urgent problem for technical personnel in this field to design the wharf structure under such conditions and provide a wharf suitable for soft soil foundation and deep water. It is necessary to avoid engineering risks and deficiencies and actively respond to the call for energy conservation, environmental protection, green and low-carbon development. Summary of the invention

[0007] In order to solve the above problems, the present invention proposes a floating-suspended jacket high-pile wharf structure and construction method suitable for ultra-deep water, which can be widely used in harsh environments with large water depths and large flow rates. The floating-suspended jacket high-pile wharf structure suitable for ultra-deep water includes: a jacket, a pile foundation, and an upper structure;

[0008] The lower part of the superstructure is connected to the pile foundation;

[0009] The jacket is installed on the lower end surface of the superstructure and connected to the pile foundation;

[0010] The superstructure includes a box-type pile cap, a transverse beam, a longitudinal beam, and a composite panel;

[0011] The sleeve-type pile cap is installed on the upper end surface of the pile foundation;

[0012] The longitudinal beam is installed on the upper end surface of the box-type pile cap;

[0013] The cross beam is installed between adjacent longitudinal beam systems;

[0014] The composite panels are laid flat on the surface of the upper structure.

[0015] Furthermore, the conductor frame is a tower frame welded with steel pipes, including a vertical conductor, a longitudinal connecting rod, a transverse connecting rod, and an oblique connecting rod;

[0016] The vertical conduits, longitudinal connecting rods, transverse connecting rods and oblique connecting rods form a space frame structure to form a conduit rack.

[0017] Furthermore, the conductor frame includes at least two layers of space frame structure.

[0018] Furthermore, the conductor frame is installed and suspended to the free length interval of the pile foundation;

[0019] The conductor frame is connected to the pile foundation as a whole by grouting.

[0020] Furthermore, the width of the conduit rack is the distance between the front and rear two vertical conduits in one rack, and the length is the distance between the front and rear three vertical conduits in two racks.

[0021] Furthermore, the upper structure includes box-type pile caps, cross beams, longitudinal beams, and composite panels, which are all prefabricated as a whole.

[0022] Furthermore, the vertical conduits, longitudinal connecting rods, transverse connecting rods, and oblique connecting rods included in the conduit rack are all prefabricated as a whole.

[0023] Furthermore, a construction method for a floating-suspended jacket high-pile wharf structure suitable for ultra-deep water includes:

[0024] Step S1, prefabricating the conductor frame as a whole on land according to the construction drawing, including vertical conductors, longitudinal connecting rods, transverse connecting rods, and oblique connecting rods;

[0025] Step S2, the jacket is transported to the site, and the vertical jacket is positioned through its own buoyancy and the assistance of a barge, so that the vertical jacket is exposed from the water surface and is coaxial with the pile foundation, serving as a pile sinking sleeve;

[0026] Step S3, using a vibrating hammer to vibrate and sink the pile foundation through the vertical guide pipe, and using a hydraulic hammer to lift and hit the pile after the pile body is stable;

[0027] Step S4: After all pile foundations are in place, the conductor frame is lowered to the designed elevation;

[0028] Step S5, timely perform underwater grouting between the pile foundation and the conductor frame to form a whole;

[0029] Step S6, installing the prefabricated box-type pile cap, and connecting the box-type pile cap and the pile foundation into a solid whole through secondary binding of steel bars in the box and secondary concrete pouring;

[0030] Step S7: The prefabricated transverse beams and longitudinal beams are placed on the box-type pile caps and connected at staggered heights, and the composite surface layer is laid after the cast-in-place nodes.

[0031] Compared with the prior art, the advantages and effects of this application are as follows:

[0032] 1. The foundation structure of the high-pile wharf involved in this application adopts a combined design of a conductor frame and a pile foundation. The superstructure is connected to the pile foundation, and the conductor frame is installed on the lower end surface of the superstructure and is firmly connected to the pile foundation to form an integral structure. This structural design is suitable for deep water and high flow rate environments, significantly reduces the amount of underwater engineering, simplifies the construction process, and reduces construction difficulty and risk.

[0033] 2. The box-type pile caps, cross beams, longitudinal beams, and composite panels used in this application are prefabricated, which can reduce on-site construction time and speed up the progress of the project; the quality control of prefabricated components is more stringent, and they can be customized according to the needs of this application to adapt to the construction of hydraulic structures in different environments, reducing the uncertainty and complexity in on-site construction.

[0034] 3. The present application relates to a floating-type conductor frame high-pile wharf structure suitable for use in extremely deep waters. Most of the components are prefabricated, and the production and installation of prefabricated components have little impact on the on-site water environment, reducing noise, dust and other pollution. The present application reduces the amount of underwater engineering work, making subsequent maintenance or disassembly easier. In addition, the present application has a short construction period, reducing project investment.

[0035] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings as follows.

[0036] Based on the detailed description of the specific embodiments of the present application in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0038] in:

[0039] Figure 1 This is the structural diagram of the floating jacket high-pile wharf;

[0040] Figure 2 This is a side view of the floating jacket high-pile wharf structure;

[0041] Figure 3 This is the structural diagram of the conductor rack.

[0042] Explanation of the reference numerals: 1-pipe frame, 2-pile foundation, 3-superstructure, 101-vertical pipe, 102-longitudinal connecting rod, 103-transverse connecting rod, 104-oblique connecting rod, 301-box-type pile cap, 302-crossbeam, 303-longitudinal beam, 304-composite panel. Specific embodiments

[0043] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment.

[0044] It should be understood that the references to "one embodiment" or "this embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "one embodiment" or "this embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0045] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0046] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0047] The term "at least one" in this article is merely a description of the association relationship of associated objects, indicating that there may be three relationships. For example, at least one of A and B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0048] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.

[0049] Example 1

[0050] This embodiment introduces a floating jacket high-pile wharf structure suitable for ultra-deep water. Figure 1 As shown, the structure shown in the figure includes a conductor frame 1, a pile foundation 2, and a superstructure 3;

[0051] The lower part of the upper structure 3 is connected to the pile foundation 2;

[0052] The jacket frame 1 is installed on the lower end surface of the upper structure 3 and connected to the pile foundation 2;

[0053] Furthermore, the jacket 1 is installed and suspended to the free length interval of the pile foundation 2; the jacket 1 is connected to the pile foundation 2 as a whole by grouting; the rigid connection formed by grouting significantly improves the overall stability and anti-overturning ability of the structure; the grouting layer can absorb and dissipate part of the vibration energy, reduce the structural vibration caused by external factors such as ship berthing, wind and waves, and by forming a rigid connection, the horizontal displacement of the structure during use is reduced, thereby improving safety.

[0054] The technical effect of this embodiment: The foundation structure of the high-pile wharf involved in this application adopts a combined design of a conductor frame and a pile foundation. The superstructure is connected to the pile foundation, and the conductor frame is installed on the lower end surface of the superstructure and is firmly connected to the pile foundation to form an integral structure. This structural design is suitable for deep water and high flow rate environments, reduces underwater engineering workload, simplifies the construction process, and reduces construction difficulty and risk.

[0055] Example 2

[0056] This embodiment introduces a floating jacket high-pile wharf structure suitable for ultra-deep water. Figure 2 As shown, the upper structure 3 shown in the figure includes a box-type pile cap 301, a cross beam 302, a longitudinal beam 303, and a composite panel 304;

[0057] The box-type pile cap 301 is installed on the upper end surface of the pile foundation 2;

[0058] The longitudinal beam system 303 is installed on the upper end surface of the box-type pile cap 301;

[0059] The cross beam 302 is installed between adjacent longitudinal beams 303;

[0060] The composite panel 304 is installed on the concave surface formed by the longitudinal beam 303 and the transverse beam 302 and laid flat on the upper structure 3 .

[0061] The box-type pile cap 301 , the cross beam 302 , the longitudinal beam 303 , and the composite panel 304 are all integrally prefabricated to form the upper structure 3 .

[0062] The technical effect of this embodiment: the box-type pile caps, cross beams, longitudinal beams, and composite panels used in this application can be prefabricated to reduce on-site construction time and speed up project progress; the quality control of prefabricated components is more stringent, and they can be customized according to the needs of this application to adapt to the construction of hydraulic structures in different environments, reducing the uncertainty and complexity in on-site construction.

[0063] Example 3

[0064] This embodiment introduces a floating jacket high-pile wharf structure suitable for ultra-deep water. Figure 3As shown in the figure, it is a schematic diagram of a conductor frame 1, which is a tower frame welded with steel pipes, including a vertical conductor 101, a longitudinal connecting rod 102, a transverse connecting rod 103, and an oblique connecting rod 104.

[0065] Furthermore, the vertical conduit 101, the longitudinal connecting rod 102, the transverse connecting rod 103, and the oblique connecting rod 104 form a space frame structure to form the conduit rack 1;

[0066] Furthermore, the conductor frame 1 includes at least two layers of space frame structures; the multi-layer space frame structure provides more support points and connection nodes, thereby enhancing the overall rigidity and stability of the conductor frame.

[0067] Furthermore, the jacket 1 is installed, sunk and suspended to the free length interval of the pile foundation 2;

[0068] Furthermore, the width of the pipe rack 1 is the distance between the front and rear two vertical pipes 101 in one rack, and the length is the distance between the front and rear three vertical pipes 101 in two racks;

[0069] Furthermore, the vertical conduit 101 , the longitudinal connecting rod 102 , the transverse connecting rod 103 , and the oblique connecting rod 104 included in the conduit rack 1 are all prefabricated as a whole.

[0070] The technical effect of this embodiment: the conductor frame used in this application is composed of multi-directional connecting rods, and this structural design can withstand large vertical and horizontal loads; and the conductor frame can be applied to a variety of geological conditions, especially soft soil foundations, and is suitable for deep water areas. By driving the pile foundation into the bottom of the water, the conductor frame can provide extremely high stability and anti-overturning ability.

[0071] Example 4

[0072] This embodiment introduces a construction method for a floating jacket high-pile wharf structure suitable for ultra-deep water, the construction method comprising:

[0073] Step S1, prefabricating the conductor frame 1 on land as a whole according to the construction drawing, including the vertical conductor 101, the longitudinal connecting rod 102, the transverse connecting rod 103, and the oblique connecting rod 104;

[0074] Step S2, the jacket 1 is transported to the site, and the vertical jacket 101 is exposed to the water surface and coaxial with the pile foundation 2 through its own buoyancy and the assistance of the barge to serve as a pile sinking sleeve;

[0075] By utilizing the jacket’s own buoyancy, the transportation and installation process can be simplified, reducing reliance on heavy lifting equipment. Barge-assisted positioning enables the jacket to quickly and accurately reach the intended location, shortening on-site operation time. Barge-assisted positioning is more economical than large crane vessels, further saving costs.

[0076] Step S3, using a vibrating hammer to vibrate and sink the pile foundation 2 through the vertical guide tube 101, and using a hydraulic hammer to lift and hit the pile after the pile body is stable;

[0077] Step S4: After all pile foundations 2 are in place, the conductor frame 1 is lowered to the designed elevation;

[0078] Step S5, performing underwater grouting between the pile foundation 2 and the jacket 1 to form a whole;

[0079] Step S6, installing the prefabricated box-type pile cap 301, and connecting the box-type pile cap 301 and the pile foundation 2 into a solid whole through secondary binding of steel bars in the box and secondary concrete pouring;

[0080] Step S7: The prefabricated transverse beams 302 and longitudinal beams 303 are placed on the box-type pile caps 301 and connected at staggered heights, and the composite surface layer 304 is laid after the cast-in-place joints.

[0081] The technical effect of this embodiment: the present application constructs a floating-type conductor frame high-pile wharf structure suitable for ultra-deep waters, in which most components are prefabricated, and the production and installation process of prefabricated components has little impact on the on-site water environment, reducing noise, dust and other pollution; the construction of this application reduces the amount of underwater engineering, facilitating subsequent maintenance or disassembly; and the entire construction period of this application is short, reducing project investment.

[0082] The above description is only the preferred embodiment of the present invention, which does not limit the protection scope of the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Within the spirit and principle of the present invention, any change, modification, replacement, integration and parameter change of these embodiments by conventional substitution or capable of achieving the same function without departing from the principle and spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A floating-type jacket high-pile wharf structure suitable for ultra-deep water, characterized in that: The structure comprises a conductor frame (1), a pile foundation (2), and a superstructure (3); The upper structure (3) is connected to the pile foundation (2) at the bottom; The conductor frame (1) is installed on the lower end surface of the upper structure (3) and connected to the pile foundation (2); The upper structure (3) comprises a box-type pile cap (301), a cross beam (302), a longitudinal beam (303), and a composite panel (304); The sleeve-type pile cap (301) is installed on the upper end surface of the pile foundation (2); The longitudinal beam system (303) is installed on the upper end surface of the box-type pile cap (301); The cross beam (302) is installed between adjacent longitudinal beams (303); The composite panel (304) is laid flat on the surface of the upper structure (3).

2. The floating-suspended jacket high-pile wharf structure suitable for ultra-deep water according to claim 1, characterized in that: The pipe frame (1) is a tower frame welded with steel pipes, comprising a vertical pipe (101), a longitudinal connecting rod (102), a transverse connecting rod (103), and an oblique connecting rod (104); The vertical conduit (101), the longitudinal connecting rod (102), the transverse connecting rod (103), and the oblique connecting rod (104) form a spatial frame structure to form a conduit rack (1).

3. The floating-suspended jacket high-pile wharf structure suitable for ultra-deep water according to claim 2, characterized in that: The conductor frame (1) comprises at least two layers of space frame structures.

4. The floating-suspended jacket high-pile wharf structure suitable for ultra-deep water according to claim 3, characterized in that: The conductor frame (1) is installed and suspended to a free length interval of the pile foundation (2); The conductor frame (1) is connected to the pile foundation (2) by grouting.

5. The floating-suspended jacket high-pile wharf structure suitable for ultra-deep water according to claim 4, characterized in that: The width of the pipe rack (1) is the distance between two front and rear vertical pipes (101) in one rack, and the length is the distance between three front and rear vertical pipes (101) in two racks.

6. The floating-suspended jacket high-pile wharf structure suitable for ultra-deep water according to claim 1, characterized in that: The upper structure (3) comprises a box-type pile cap (301), a cross beam (302), a longitudinal beam (303), and a composite panel (304), all of which are integrally prefabricated.

7. The floating-suspended jacket high-pile wharf structure applicable to ultra-deep waters according to claim 2, characterized in that: The vertical conduit (101), the longitudinal connecting rod (102), the transverse connecting rod (103), and the oblique connecting rod (104) included in the conduit rack (1) are all prefabricated as a whole.

8. A construction method for a floating jacket high-pile wharf structure suitable for ultra-deep water according to any one of claims 1 to 7, characterized in that: The method comprises: Step S1, prefabricating a conductor frame (1) on land as a whole according to a construction drawing, including a vertical conductor (101), a longitudinal connecting rod (102), a transverse connecting rod (103), and an oblique connecting rod (104); Step S2, the jacket (1) is transported to the site, and positioned by its own buoyancy and the assistance of a barge, so that the vertical jacket (101) is exposed from the water surface and is coaxial with the pile foundation (2), serving as a pile sinking sleeve; Step S3, using a vibrating hammer to vibrate and sink the pile foundation (2) through the vertical guide tube (101), and using a hydraulic hammer to lift and hit the pile after the pile body is stable; Step S4, after all pile foundations (2) are in place, the conductor frame (1) is lowered to the designed elevation; Step S5, timely performing underwater grouting between the pile foundation (2) and the conductor frame (1) to form a whole; Step S6, installing the prefabricated box-type pile cap (301), and connecting the box-type pile cap (301) and the pile foundation (2) into a solid whole through secondary binding of steel bars in the box body and secondary concrete pouring; Step S7: The prefabricated transverse beams (302) and longitudinal beams (303) are placed on the box-type pile caps (301) and connected at staggered heights, and the composite surface layer (304) is laid after the nodes are cast in situ.

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