Floating jacket high-pile wharf structure suitable for super deep water and construction method

Abstract

The application discloses a floating jacket high-pile wharf structure suitable for super-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 upper structure is connected with the pile foundation at the lower part.The jacket is installed at the lower end face of the upper structure and is connected with the pile foundation.The upper structure comprises a sleeve box type pile cap, cross beams, longitudinal beam systems and superimposed face plates.The sleeve box type pile cap is installed on the upper end face of the pile foundation.The longitudinal beam systems are installed on the upper end face of the sleeve box type pile cap.The cross beams are installed between adjacent longitudinal beam systems.The superimposed face plates are laid on the surface layer of the upper structure.The structure is suitable for the environment with large water depth and large flow rate by virtue of the structural advantages, has small underwater construction engineering quantity, high assembly degree, small environmental influence, short construction period and saved engineering investment.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of high-pile wharf, and particularly relates to a floating suspension type jacket high-pile wharf structure suitable for super large water depth and a construction method thereof. BACKGROUND

[0002] A high-pile wharf is a common wharf structure form, which is supported by a series of long piles driven into the ground and has a platform or deck laid thereon for the use of ships to berth and cargo to be loaded and unloaded. The high-pile wharf is suitable for areas with large water depth and poor geological conditions (such as soft soil layer), and is particularly suitable for container wharfs, bulk cargo wharfs and other places that require a large amount of loading and unloading operations. When constructing a wharf in soft foundation conditions with water depth reaching 50 m or more and flow rate reaching 2 m / s, the influences of various adverse factors such as tidal flow, hydraulic scouring and water flow rotation need to be fully considered in the design.

[0003] In the design of traditional wharf structures, the shore slope recovery method is often used to reduce the free length of pile foundation and the horizontal displacement of the structure under deep water and easy scouring conditions, so as to meet the design requirements of pile stability during construction and position during service life. This structure type has disadvantages such as large amount of underwater engineering, long construction period, large engineering investment and influence on water flow pattern.

[0004] In the prior art, Chinese patent CN118498280A (published on August 16, 2024) discloses a high-pile wharf structure suitable for large water level difference, belonging to the field of high-pile wharf, which comprises a pile foundation, a cross beam, a longitudinal beam, and a panel. The cross beam comprises a lower cross beam and an upper cross beam. The lower cross beam is connected to the upper end of the pile foundation, and the upper cross beam is arranged on the lower cross beam and connected to the longitudinal beam. The panel is arranged above the upper cross beam and the longitudinal beam to form the main structure of the high-pile wharf. Further, a pair of connecting pieces are arranged on the side of the upper cross beam, and a damper is installed between the connecting pieces to form a high-pile wharf structure suitable for large water level difference.

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

[0006] Therefore, under this condition, it is urgent for those skilled in the art to design a wharf structure suitable for soft soil foundation and large water depth, to avoid engineering risks and deficiencies, and to actively respond to the call for energy saving, environmental protection and green low carbon. SUMMARY

[0007] In order to solve the above problems, the present application provides a floating suspension type jacket high-pile wharf structure suitable for super large water depth and a construction method thereof, which can be widely applied in severe environment with large water depth and large flow velocity, and the floating suspension type jacket high-pile wharf structure suitable for super large water depth comprises a jacket, a pile foundation and an upper structure.

[0008] The upper structure is connected to the pile foundation through the lower connecting pile foundation.

[0009] The jacket is installed at the lower end surface of the upper structure and is connected to the pile foundation.

[0010] The upper structure comprises a sleeve box type pile cap, a cross beam, a longitudinal beam and a laminated panel.

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

[0012] The longitudinal beam system is installed on the upper end surface of the sleeve box type pile cap.

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

[0014] The laminated panel is laid on the surface layer of the upper structure.

[0015] Further, the jacket is a tower welded by steel pipes, which comprises vertical pipes, longitudinal connecting rod members, transverse connecting rod members and oblique connecting rod members.

[0016] The vertical pipes, the longitudinal connecting rod members, the transverse connecting rod members and the oblique connecting rod members form a space frame structure to form the jacket.

[0017] Further, the jacket comprises at least two layers of space frame structures.

[0018] Further, the jacket is installed to be suspended to the free length interval of the pile foundation.

[0019] The jacket is connected to the pile foundation to form an integral whole by grouting.

[0020] Further, the width of the jacket is the distance between the front and rear two vertical pipes in one row of frames, and the length of the jacket is the distance between the front and rear three vertical pipes in two rows of frames.

[0021] Further, the sleeve box type pile cap, the cross beam, the longitudinal beam and the laminated panel of the upper structure are integrally prefabricated.

[0022] Further, the vertical pipes, the longitudinal connecting rod members, the transverse connecting rod members and the oblique connecting rod members of the jacket are integrally prefabricated.

[0023] Further, the construction method of the floating suspension type jacket high-pile wharf structure suitable for super large water depth comprises the following steps.

[0024] Step S1, the jacket is integrally prefabricated on land according to the construction drawing, including vertical guide pipes, longitudinal connecting rod members, transverse connecting rod members and inclined connecting rod members;

[0025] Step S2, the jacket is transported to the site, is positioned by the self buoyancy and the barge, the vertical guide pipes are exposed above the water surface and coaxial with the pile foundation, and serve as pile sinking sleeves;

[0026] Step S3, the pile foundation is vibrated and sunk by using a vibrating hammer through the vertical guide pipes, and after the pile body is stabilized, the pile foundation is lifted by a hydraulic hammer;

[0027] Step S4, after all the pile foundations are positioned, the jacket is lowered to the design elevation;

[0028] Step S5, underwater grouting is performed between the pile foundations and the jacket in time to form an integral whole;

[0029] Step S6, a prefabricated sleeve box type pile cap is installed, the sleeve box type pile cap is connected with the pile foundation to form a firm integral whole through secondary binding of steel bars in the box and secondary concrete pouring;

[0030] Step S7, the prefabricated cross beams and longitudinal beams are placed on the sleeve box type pile cap and connected in staggered heights, and the overlapped surface layer is laid after the cast-in-situ joint.

[0031] Compared with the prior art, the application has the following advantages and effects:

[0032] 1. The high-pile wharf foundation part structure involved in the application is designed by combining a jacket and a pile foundation, the upper structure is connected with the pile foundation, the jacket is installed on the lower end surface of the upper structure and is firmly connected with the pile foundation to form an integral structure, the structure design is suitable for a large water depth and a large flow rate environment, the underwater engineering quantity is significantly reduced, the construction process is simplified, and the construction difficulty and risk are reduced.

[0033] 2. The sleeve box type pile cap, the cross beams, the longitudinal beams and the overlapped surface panels adopted in the application are prefabricated, the construction time on site can be reduced, the engineering progress can be accelerated, the quality control of the prefabricated components is more strict, the prefabricated components can be customized according to the requirements of the application, the construction of hydraulic structures in different environments is adapted, and the uncertain factors and complexity in the construction on site are reduced.

[0034] 3. The floating suspension type jacket high-pile wharf structure suitable for a super large water depth constructed by the application, most of the components are prefabricated, the production and installation process of the prefabricated components has a smaller influence on the water environment on site, noise, dust and other pollution are reduced, the underwater engineering quantity is reduced by the construction of the application, subsequent maintenance or disassembly is facilitated, the whole construction cycle of the application is short, and the engineering investment is reduced.

[0035] The above description is only a summary of the technical scheme of the present application. In order to make the technical means of the present application more clearly understood, and to be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following will be described in detail with the preferred embodiments of the present application and in conjunction with the drawings as follows.

[0036] The above and other purposes, advantages and features of the present application will be more clearly understood from the following detailed description of specific embodiments of the present application taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0038] Wherein:

[0039] Figure 1 is a structure diagram of a floating suspension jacket high-pile wharf;

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

[0041] Figure 3 is a structure diagram of a jacket.

[0042] Explanation of reference numerals: 1-jacket, 2-pile foundation, 3-upper structure, 101-vertical pipe, 102-longitudinal connection rod, 103-transverse connection rod, 104-oblique connection rod, 301-sleeve box pile cap, 302-cross beam, 303-longitudinal beam, 304-laminated panel. DETAILED DESCRIPTION

[0043] In order to make the purposes, technical schemes and advantages of the embodiments of the present application more clear, the technical schemes in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. In the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present application. Therefore, those skilled in the art should understand 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, in order to be clear and concise, the description of known functions and structures is omitted in the embodiments.

[0044] It should be understood that the reference herein to "one embodiment" or "the embodiment" means that a particular feature, structure, or characteristic described is included in at least one embodiment of the application. Therefore, appearances of the phrases "one embodiment" or "the embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0045] In addition, reference numerals can be repeated in different examples. Such repetition is for the purpose of simplicity and clarity and does not itself dictate a relationship between the various embodiments and / or configurations discussed.

[0046] The term "and / or", merely describes association between associated objects, indicates that there can be three relationships, for example, A and / or B, can indicate: A alone, B alone, A and B exist at the same time, the term "and" in this paper is to describe another relationship between associated objects, indicates that there can be two relationships, for example, A and B, can indicate: A alone, A and B exist at the same time, in addition, the character " / " in this paper generally indicates that the associated objects before and after are "or" relationship.

[0047] The term "at least one" in this paper is only to describe the relationship between the associated objects, which means that there can be three relationships, for example, at least one of A and B, which means: A alone, A and B exist at the same time, B alone, these three cases.

[0048] It should also be noted that the relationship terms such as first and second, etc. used herein merely serve to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion.

[0049] Embodiment 1

[0050] This embodiment introduces a floating jacket high-pile wharf structure suitable for ultra-deep water, please refer to Figure 1 The structure shown in the figure includes a jacket 1, a pile foundation 2, and an upper structure 3;

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

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

[0053] Further, the jacket 1 is installed to be suspended to the free length section of the pile foundation 2; the jacket 1 is connected to the pile foundation 2 to form an integral structure by grouting; the rigidity connection formed by grouting significantly improves the overall stability and overturning resistance of the structure; the grouting layer can absorb and dissipate part of the vibration energy, reduce the structural vibration caused by the berthing of ships, waves and other external factors, and reduce the horizontal displacement of the structure in the use process by forming a rigid connection, thereby improving the safety.

[0054] Technical effects of the embodiment: The high-pile wharf foundation structure of the application adopts a combination design of a jacket and a pile foundation; the superstructure is connected to the pile foundation; the jacket is installed on the lower end surface of the superstructure and is firmly connected to the pile foundation to form an integral structure; the structure design is suitable for a large water depth and a large flow rate environment; the underwater engineering quantity is reduced; the construction process is simplified; and the construction difficulty and risk are reduced.

[0055] Embodiment 2

[0056] This embodiment introduces a floating jacket high-pile wharf structure suitable for super large water depth, please refer to Figure 2 The superstructure 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 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 at the concave surface formed by the longitudinal beam 303 and the cross beam 302 and is laid on the superstructure 3.

[0061] The box-type pile cap 301, the cross beam 302, the longitudinal beam 303, and the composite panel 304 are all used to form the superstructure 3 by integral prefabrication.

[0062] Technical effects of the embodiment: The box-type pile cap, the cross beam, the longitudinal beam, and the composite panel of the application can reduce the on-site construction time and speed up the engineering progress through prefabrication; the quality control of the prefabricated components is more strict; the components can be customized according to the requirements of the application and are suitable for the construction of hydraulic structures in different environments, thereby reducing the uncertainty and complexity in the on-site construction.

[0063] Embodiment 3

[0064] This embodiment introduces a floating jacket high-pile wharf structure suitable for super large water depth, please refer to Figure 3As shown, the figure shows a schematic diagram of a guide pipe support 1, which is a steel pipe welded tower, including vertical guide pipes 101, longitudinal connecting rods 102, transverse connecting rods 103, and inclined connecting rods 104.

[0065] Further, the vertical guide pipes 101, longitudinal connecting rods 102, transverse connecting rods 103, and inclined connecting rods 104 form a spatial frame structure to form the guide pipe support 1.

[0066] Further, the guide pipe support 1 includes at least two layers of spatial frame structures; the multi-layer spatial frame structure provides more support points and connection nodes, enhancing the overall rigidity and stability of the guide pipe support.

[0067] Further, the guide pipe support 1 is installed to sink and suspend to the free length interval of the pile foundation 2.

[0068] Further, the width of the guide pipe support 1 is the distance between the front and rear two vertical guide pipes 101 in one row of frame, and the length is the distance between the front and rear three vertical guide pipes 101 in two rows of frame.

[0069] Further, the vertical guide pipes 101, longitudinal connecting rods 102, transverse connecting rods 103, and inclined connecting rods 104 of the guide pipe support 1 are all prefabricated as a whole.

[0070] Technical effects of the embodiment: The guide pipe support adopted in the application is composed of multi-directional connecting rods, which can withstand large vertical and horizontal loads. The guide pipe support can be applied to various geological conditions, especially for soft soil foundation, and can be applied to deep water areas. By driving the pile foundation into the water bottom, the guide pipe support can provide high stability and overturning resistance.

[0071] Embodiment 4

[0072] The embodiment introduces a construction method of a floating guide pipe support high-pile wharf structure suitable for super deep water, which comprises:

[0073] Step S1, according to the construction drawing, the guide pipe support 1 is prefabricated on land, including vertical guide pipes 101, longitudinal connecting rods 102, transverse connecting rods 103, and inclined connecting rods 104.

[0074] Step S2, the guide pipe support 1 is transported to the site, and is positioned by its own buoyancy and the assistance of a barge, so that the vertical guide pipes 101 are exposed above water and coaxial with the pile foundation 2, serving as a pile sinking sleeve.

[0075] By using the self-floating force of the jacket, the transportation and installation process can be simplified, and the dependence on heavy lifting equipment can be reduced; and by using the barge to assist in positioning, the jacket can quickly and accurately reach the predetermined position, thereby shortening the on-site operation time, and the barge-assisted positioning is more economical than the large crane ship, thereby further saving costs.

[0076] Step S3, the pile foundation 2 is vibrated by using a vertical guide pipe 101 and a vibrating hammer, and after the pile body is stabilized, a hydraulic hammer is used for lifting and hitting;

[0077] Step S4, after all the pile foundations 2 are positioned, the jacket 1 is lowered to the design elevation;

[0078] Step S5, underwater grouting is performed between the pile foundation 2 and the jacket 1 in time to form an integral whole;

[0079] Step S6, a prefabricated sleeve box pile cap 301 is installed, and the sleeve box pile cap 301 is connected with the pile foundation 2 to form a firm integral whole through secondary binding of steel bars in the box and secondary concrete pouring;

[0080] Step S7, the prefabricated cross beam 302 and the longitudinal beam 303 are placed on the sleeve box pile cap 301 and connected in staggered heights, and after the cast-in-place joint is laid, the composite surface layer 304 is paved.

[0081] Technical effects of the embodiment: the floating jacket high-pile wharf structure suitable for super-large water depth is constructed in the application, most of the components are prefabricated, the production and installation process of the prefabricated components has less impact on the on-site water environment, and noise, dust and other pollution are reduced; the construction of the application reduces the underwater engineering quantity, and is convenient for subsequent maintenance or disassembly; and the entire construction cycle of the application is short, and the engineering investment is reduced.

[0082] The above only describes the preferred embodiments of the application, and does not limit the protection scope of the application. For those skilled in the art, the application can have various changes and modifications. Any changes, modifications, replacements, integrations and parameter changes made to these embodiments within the spirit and principles of the application, which can realize the same functions without departing from the principles and spirit of the application, fall within the protection scope of the application.

Claims

1. A construction method for a floating jacket high-pile wharf structure suitable for ultra-deep water conditions, wherein the floating jacket high-pile wharf structure suitable for ultra-deep water conditions includes: jacket (1), pile foundation (2), superstructure (3); The upper structure (3) is connected to the lower pile foundation (2). The jacket (1) is installed on the lower end face of the upper structure (3) and connected to the pile foundation (2). The guide frame (1) is installed and suspended within the free length range of the pile foundation (2), and is connected to the pile foundation (2) as a whole by grouting; The superstructure (3) includes a box-type pile cap (301), a crossbeam (302), a longitudinal beam (303), and a composite panel (304), all of which are prefabricated as a whole. The sleeve-type pile cap (301) is installed on the upper end face of the pile foundation (2); The longitudinal beam (303) is installed on the upper end face of the sleeve-type pile cap (301); The crossbeam (302) is installed between adjacent longitudinal beams (303); The laminated panel (304) is laid flat on the surface of the upper structure (3); The jacket (1) is a steel pipe welded tower, including vertical jacket (101), longitudinal connecting rod (102), transverse connecting rod (103), and diagonal connecting rod (104), all of which are prefabricated as a whole; The vertical guide tube (101), longitudinal connecting rod (102), transverse connecting rod (103), and diagonal connecting rod (104) form a spatial frame structure to form the guide tube frame (1). The guide frame (1) includes at least two layers of space frame structure; The width of the catheter rack (1) is the distance between the front and rear vertical catheters (101) in one rack, and the length is the distance between the front and rear vertical catheters (101) in two racks; The construction method is characterized by: Step S1: Prefabricate the overall jacket structure (1) on land according to the construction drawings, including vertical jacket (101), longitudinal connecting rods (102), transverse connecting rods (103), and diagonal connecting rods (104). Step S2: The jacket (1) is transported to the site and positioned by its own buoyancy and barge assistance, so that the vertical pipe (101) protrudes from the water surface and is coaxial with the pile foundation (2), serving as the pile driving sleeve; Step S3: Vibrate the pile foundation (2) with a vibratory hammer through the vertical guide pipe (101) and drive it down after the pile body is stable. Step S4: After all pile foundations (2) are in place, lower the guide frame (1) to the design elevation; Step S5: In time, underwater grouting is carried out between the pile foundation (2) and the guide frame (1) to form an integral whole; Step S6: Install the precast box-type pile cap (301), and connect the box-type pile cap (301) with the pile foundation (2) into a solid whole through secondary binding of the steel bars inside the box and secondary concrete pouring. In step S7, the precast crossbeam (302) and longitudinal beam (303) are placed on the box-type pile cap (301) and connected at staggered heights. After the cast-in-place joint is completed, the composite panel (304) is laid.

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