Wharf substructure, its auxiliary installation device and installation method

Abstract

The present invention provides a new type of dock substructure, including a dock column and a base arranged at the bottom of the dock column. The dock column includes a plurality of cylinders nested in sequence from the outside to the inside and a column arranged in the innermost cylinder. The two adjacent cylinders and the innermost cylinder and the column are connected by a plurality of ribs. The cylinders are provided with a plurality of first energy dissipation holes. The base is hollow inside and is provided with a plurality of second energy dissipation holes. The present invention also provides an auxiliary installation device for the above-mentioned new dock substructure and an installation method using the auxiliary installation device. The new dock substructure of the present invention can weaken the adverse effects of harsh environments on the dock and ensure the stability of the dock structure in harsh environments. The auxiliary installation device and installation method of the new dock substructure are configured, which greatly optimizes the construction process of the new dock substructure and saves large-scale equipment resources.

Description

Technical Field

[0001] The present invention belongs to the technical field of wharf construction, and in particular relates to a wharf substructure and an auxiliary installation device and an installation method thereof. Background Art

[0002] The geological conditions in many of my country's sea areas (especially the South China Sea) are coral reefs, and some seabeds can be transformed into hard geological conditions after foundation treatment. Gravity docks are usually used as the structural type of dock in hard geological environments. Gravity docks rely solely on their own weight and the friction between them and the seabed to resist slippage and overturning. For existing projects, under the influence of strong winds and waves, traditional gravity docks often suffer from poor stability, drifting, and overturning, not only during the construction period, but also during the operation period after the overall structure is formed. Although the open-type pile foundation of traditional high-pile docks is conducive to wave dissipation and reducing the effects of adverse loads such as wind and waves, it is difficult for pile driving vessels to locate in harsh sea conditions, the pile driving position is very large, and it is difficult to drive pile foundations into the hard seabed. Summary of the Invention

[0003] The object of the present invention is to provide a dock substructure and its auxiliary installation device and installation method, which can reduce the adverse effects of harsh environments on the dock and ensure the stability of the dock structure in harsh environments.

[0004] The present invention is achieved through the following technical solutions:

[0005] A dock substructure includes a dock column and a base arranged at the bottom of the dock column. The dock column includes a plurality of cylinders nested in sequence from the outside to the inside and a column arranged in the innermost cylinder. Adjacent cylinders and the innermost cylinder and the column are connected by a plurality of ribs. The cylinders are provided with a plurality of first energy dissipation holes. The base is hollow inside and is provided with a plurality of second energy dissipation holes.

[0006] Furthermore, multiple ribs between two adjacent cylinders are arranged at equal intervals along the circumference of the dock column, and multiple ribs between the column and the innermost cylinder are arranged at equal intervals along the circumference of the dock column. The multiple ribs connected to the cylinder divide the cylinder into several opening areas, and the multiple first energy dissipation holes on the cylinder are divided into several groups of first energy dissipation hole groups, and the several groups of first energy dissipation hole groups correspond one-to-one to the several opening areas on the cylinder. The first energy dissipation holes in each group of first energy dissipation hole groups are arranged on the corresponding opening area and are arranged at equal intervals along the length direction of the dock column.

[0007] Furthermore, the base includes a sleeve and a base plate arranged at the bottom of the sleeve. The sleeve is a truncated cone-shaped structure with upper and lower openings and a hollow interior. The top of the sleeve extends upward to form a socket portion. The bottom of the dock column body is provided with a socket portion for inserting into the socket portion. The socket portion and the socket portion are fixedly connected by a number of fasteners, and a second energy dissipation hole is arranged on the sleeve.

[0008] Furthermore, a concrete anchor is provided on the outside of the connection between the socket part and the spigot part; and / or the edge of the bottom plate extends outward to the outside of the sleeve to form a toe plate, which is connected to the seabed through multiple anchor rods.

[0009] Furthermore, a riprap structure is provided on the outside of the base.

[0010] An auxiliary installation device for a dock under the above-mentioned harsh sea conditions, wherein a channel penetrating the dock column is formed between two adjacent cylinders and two adjacent ribs located inside the two cylinders, the auxiliary installation device includes a first installation mechanism, the first installation mechanism includes a first external component for controlling the opening and closing of multiple first energy dissipation holes located on the outermost cylinder, and a first upper component, a first middle component and a first lower component for controlling the opening and closing of the channel, a plurality of first buoyancy air bags are provided on the outside of the first external component, the first middle component is connected to the first upper component by a first telescopic component, and the first lower component is connected to the first middle component by a second telescopic component.

[0011] Furthermore, the first external component includes a first frame for being sleeved on the outside of the dock column, a plurality of third telescopic members arranged on the inner side wall of the first frame, and a plurality of first curved plates respectively arranged on the plurality of third telescopic members and used to completely cover the plurality of first energy dissipation holes located on the outermost cylinder.

[0012] Furthermore, the first middle component includes a first mounting plate respectively arranged in each channel, and the first mounting plate is connected to the first flexible plate along its circumference, and the first flexible plate has an expanded state and a compressed state; wherein, in the expanded state, the first flexible plate is respectively in contact with the inner side wall of the channel and the first mounting plate; in the compressed state, the first flexible plate is out of contact with the inner side wall of the channel; each first mounting plate is respectively connected to the first upper component through a first telescopic member; the first lower component has the same structure as the first middle component, and each first mounting plate of the first lower component is respectively connected to the first mounting plate of the first middle component located in the same channel through a second telescopic member.

[0013] Furthermore, the base includes a sleeve and a base plate arranged at the bottom of the sleeve. The sleeve is a truncated cone-shaped structure with upper and lower openings and a hollow interior. The second energy dissipation hole is arranged on the sleeve. The auxiliary mounting device also includes a second mounting mechanism. The second mounting mechanism includes a second external component for controlling the opening and closing of multiple second energy dissipation holes on the sleeve and a second upper component, a second middle component and a second lower component for controlling the opening and closing of the sleeve opening. Multiple second floating air bags are provided on the outside of the second external component. The number of second middle components is set to be several. Several second middle components are arranged between the second upper component and the second lower component, and are arranged in sequence from top to bottom. The adjacent two second middle components are connected by a first connecting rod. The second middle component located on the uppermost side is connected to the second upper component by a second connecting rod, and the second middle component located on the lowermost side is connected to the second lower component by a third connecting rod.

[0014] A method for installing a dock substructure using the auxiliary installation device includes the following steps:

[0015] (1) Base installation;

[0016] (2) Installation of the wharf column;

[0017] (2-1) Installing a first upper assembly, a first middle assembly, and a first lower assembly on the pier column, and closing each passage through the first upper assembly, the first middle assembly, and the first lower assembly, wherein the first upper assembly is located within the top end of the pier column, the first middle assembly and the first lower assembly are located within the bottom end of the pier column, and the first middle assembly and the first lower assembly are spaced apart;

[0018] (2-2) installing a first external component on the pier column, and closing a plurality of first energy dissipation holes on the outermost cylinder through the first external component;

[0019] (2-3) transporting the pier column to the water surface, and inflating the plurality of first auxiliary air bags so that the pier column floats on the water surface;

[0020] (2-4) Use a tugboat to transport the pier column to the designated location;

[0021] (2-5) respectively controlling the inflation and deflation of the plurality of first auxiliary air bags so that the bottom end of the pier column sinks into the water and the top end of the pier column floats above the water surface;

[0022] (2-6) controlling the first lower component to open each channel, and controlling the second telescopic member to retract a preset distance, so that the first lower component moves upward a preset distance, and then controlling the first lower component to close each channel;

[0023] (2-7) controlling the first middle component to open each channel, controlling the first telescopic member to retract a preset distance, and controlling the second telescopic member to extend a preset distance, so that the first middle component moves upward a preset distance, and then controlling the first middle component to close each channel;

[0024] (2-8) Repeat steps (2-6) to (2-7), and control the deflation of multiple first auxiliary air bags according to the water filling condition of the pier column to slowly sink the pier column to a specified depth;

[0025] (2-9) Install the pier column onto the base;

[0026] (2-10) Remove the first outer assembly, the first upper assembly, the first middle assembly, and the first lower assembly.

[0027] Compared with the existing technology, the beneficial effects of the present invention are as follows: the pier column is provided with a multi-layer hollow cylinder structure, each cylinder is provided with a plurality of first energy dissipation holes, and a plurality of second energy dissipation holes are provided on the base, which can weaken the adverse effects of severe sea conditions on the new pier and ensure the stability of the new pier structure under severe sea conditions during the construction period and the operation period; the innermost column and rib plate structure of the pier column ensure the overall stiffness of the structure and ensure the stiffness of the overall structure of the pier column. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of the dock substructure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structural portion of the wharf column in the wharf substructure of the present invention;

[0030] Figure 3 This is a structural diagram of the base in the lower structure of the dock of the present invention;

[0031] Figure 4 This is a schematic diagram of the installation of the dock column and base in the dock substructure of the present invention;

[0032] Figure 5 This is a structural schematic diagram of the first installation mechanism in the auxiliary installation device for the dock substructure of the present invention;

[0033] Figure 6 A top view of the first installation mechanism in the auxiliary installation device for the dock substructure of the present invention;

[0034] Figure 7 A top view of the first installation mechanism and the dock column in the auxiliary installation device of the dock substructure of the present invention;

[0035] Figure 8 This is a structural schematic diagram of the first installation mechanism of the auxiliary installation device for the dock substructure of the present invention being installed on the dock column;

[0036] Figure 9 This is a schematic diagram of the construction process for installing the wharf column using the first installation mechanism in the auxiliary installation device for the wharf substructure of the present invention;

[0037] Figure 10 It is a partially enlarged schematic diagram of the first middle component in the auxiliary installation device of the dock substructure of the present invention;

[0038] Figure 11 This is a schematic diagram of the process of closing the passage of the first middle component in the auxiliary installation device of the dock substructure of the present invention;

[0039] Figure 12 It is a structural schematic diagram of the second installation mechanism in the auxiliary installation device of the dock substructure of the present invention;

[0040] Figure 13 This is a structural schematic diagram of the second mounting mechanism in the auxiliary mounting device for the dock substructure of the present invention being mounted on a base;

[0041] Figure 14 This is a schematic diagram of the construction process for installing a base using a second installation mechanism in the auxiliary installation device for the dock substructure of the present invention;

[0042] Figure 15 Schematic diagram of a wharf using a wharf substructure.

[0043] In the figure, 1-pier column, 11-cylinder, 111-first energy dissipation hole, 12-column, 13-rib, 14-socket part, 2-base, 21-sleeve, 211-second energy dissipation hole, 212-socket part, 22-bottom plate, 221-toe plate, 23-fastener, 24-anchor rod, 25-riprap structure, 3-first external component, 31-first frame, 32-third telescopic member, 33-first arc plate, 4-first upper component, 5-first middle component, 6-first lower component, 7-first mounting plate, 8-first flexible plate, 9-second external component, 10-second upper component, 20-second middle component, 30-second lower component, 40-first connecting rod, 50-second connecting rod, 60-third connecting rod, 70-pier upper structure, 80-fourth telescopic member. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0046] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are used only to distinguish the description and should not be understood as indicating or implying relative importance.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0048] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0049] See also Figure 1 、 Figure 2 and Figure 3 , Figure 1 This is a schematic structural diagram of the dock substructure of the present invention. Figure 2 This is a schematic diagram of the structural part of the wharf column in the wharf substructure of the present invention. Figure 3The diagram below is a schematic diagram of the structure of the base of the dock substructure of the present invention. A dock substructure includes a dock column 1 and a base 2 disposed at the bottom of the dock column 1. The dock column 1 comprises a plurality of cylinders 11 nested in sequence from the outside inward, and a column 12 disposed within the innermost cylinder 11. Adjacent cylinders 11, as well as the innermost cylinder 11 and the column 12, are connected by a plurality of ribs 13. The cylinders 11 are provided with a plurality of first energy dissipation holes 111. The base 2 is hollow and has a plurality of second energy dissipation holes 211.

[0050] The pier column body 1 uses the innermost column 12 as a frame, and a multi-layer hollow cylinder 11 structure is set on the outside of the column 12. Each adjacent layer of cylinders 11 and between the main body and the innermost cylinder 11 are connected by ribs 13, and the length direction of the ribs 13 is consistent with the length direction of the pier column body 1, so that a channel is formed between the adjacent two cylinders 11 and the adjacent two ribs 13 located inside the two cylinders 11, which penetrates the pier column body 1 and ensures the overall rigidity of the pier column body 1 structure; a plurality of first energy dissipation holes 111 are provided on each cylinder 11, and a plurality of second energy dissipation holes 211 are provided on the base 2, which can weaken the adverse effects of severe sea conditions on the lower structure of the pier and ensure the stability of the pier structure under severe sea conditions during the construction period and the operation period. Preferably, the number of cylinders 11 can be determined according to actual needs, such as the number of cylinders 11 can be set to two.

[0051] In one embodiment, the multiple ribs 13 between two adjacent cylinders 11 are arranged at equal intervals along the circumference of the dock column 1, and the multiple ribs 13 between the column 12 and the innermost cylinder 11 are arranged at equal intervals along the circumference of the dock column 1. The multiple ribs 13 connected to the cylinder 11 divide the cylinder 11 into a plurality of opening areas. The multiple first energy dissipation holes 111 on the cylinder 11 are divided into a plurality of groups of first energy dissipation holes 111, and the plurality of groups of first energy dissipation holes 111 correspond one-to-one to the plurality of opening areas on the cylinder 11. The first energy dissipation holes 111 in each group of first energy dissipation holes 111 are arranged on the corresponding opening area and are arranged at equal intervals along the length direction of the dock column 1. The multiple ribs 13 between two adjacent cylinders 11 divide the cylinders 11 on both sides into a number of opening areas. The first energy dissipation holes 111 in each group of first energy dissipation holes 111 are evenly arranged on the corresponding opening areas, so that the first energy dissipation holes 111 are evenly arranged on the cylinder 11, and the multiple ribs 13 on the outside of the cylinder 11 located in the middle position correspond one-to-one with the multiple ribs 13 on the inside of the cylinder 11. The ribs 13 on the outside of the cylinder 11 located in the middle position and the corresponding ribs 13 are on the same straight line, so that the first energy dissipation holes 111 on the two adjacent cylinders 11 can better dissipate energy at the corresponding positions of the two. In one embodiment, the pier column 1 includes a number of column segments connected in sequence. If the pier column 1 is too high, it can be made in sections and then spliced together later, with the adjacent column segments spliced in the form of sockets.

[0052] Please refer to Figure 4 , Figure 4 The figure shows the installation of the pier column and base in the pier substructure of the present invention. In one embodiment, the base 2 includes a sleeve 21 and a base plate 22 disposed at the bottom of the sleeve 21. The sleeve 21 is a truncated cone-shaped structure with openings at the top and bottom and a hollow interior. The top of the sleeve 21 extends upward to form a socket portion 212. The bottom of the pier column 1 is provided with a socket portion 14 for insertion into the socket portion 212. The socket portion 212 and the socket portion 14 are fixedly connected by a plurality of fasteners 23. A second energy dissipation hole 211 is provided on the sleeve 21. The base 2 includes the sleeve 21 and the base plate 22. The sleeve 21 is a truncated cone-shaped structure, making the base 2 an expanded shallow foundation structure that is well suited for hard seabed geological conditions. The base 2 has strong self-stabilization capabilities after entering the water. The connection between the base 2 and the pier column 1 is a spigot-and-socket joint. The base 2 is provided with a socket portion 212, and the pier column 1 is provided with a spigot portion 14. Pre-set holes are provided on the corresponding sidewalls of the socket portion 212 and the spigot portion 14 to allow fasteners 23 to be inserted for connection. Preferably, the fasteners 23 are fiberglass screws, so that the base 2 and the pier column 1 form a solid whole.

[0053] In one embodiment, to further strengthen the connection between the base 2 and the pier column 1, a concrete anchor is provided on the outside of the connection between the socket portion 212 and the socket portion 14; and / or, to better provide the pier's anti-buoyancy, the edge of the base plate 22 extends outward to the outside of the sleeve 21 to form a toe plate 221, which is connected to the seabed via multiple anchor rods 24. In actual application, a number of circular holes are provided in the toe plate 221, into which anchor rods 24 can be inserted into the foundation. Grouting is then performed by the anchor rods 24 into the foundation. After the anchor rods 24 are installed, the circular holes in the base plate 22 are grout-sealed, connecting the top ends of the anchor rods 24 to the pier's concrete base 2. The provision of the anchor rods 24 ensures that the base 2 has sufficient lateral anti-slip and vertical anti-pullout forces, thereby ensuring that the pier structure has sufficient lateral anti-slip and vertical anti-pullout forces.

[0054] In one embodiment, a riprap structure 25 is provided on the outside of the base 2. This structure, formed by dumping graded boulders on the outside of the base 2, not only increases the counterweight of the base 2, but also enhances its stability and resistance to tilting and floating. Furthermore, the riprap structure 25 acts as an undercurrent energy dissipator, effectively protecting the base 2 and reducing the scouring effect of high-speed water on the base 2. In one embodiment, several reinforcement plates are vertically mounted on the outer wall of the base 2. These reinforcement plates enhance the friction between the riprap structure 25 and the base 2, ensuring that the riprap structure 25 is pressed against the base 2.

[0055] Please refer to Figures 5 to 8 , Figure 5This is a structural diagram of the first installation mechanism in the auxiliary installation device for the dock substructure of the present invention. Figure 6 This is a top view of the first installation mechanism in the auxiliary installation device for the dock substructure of the present invention. Figure 7 This is a top view of the first installation mechanism and the dock column in the auxiliary installation device of the dock substructure of the present invention. Figure 8 The diagram shows a structure in which the first mounting mechanism of the auxiliary mounting device for the dock substructure of the present invention is mounted on the dock column. The dock substructure of the present invention can be constructed by conventional crane ship hoisting. However, in order to optimize the construction process of the novel dock substructure of the present invention and reduce the resource cost of large-scale machinery and equipment, the present invention also proposes an auxiliary mounting device for the above-mentioned dock substructure. A passage penetrating the dock column 1 is formed between two adjacent cylinders 11 on the dock column 1 and two adjacent ribs 13 located within the two cylinders 11. The auxiliary mounting device includes a first mounting mechanism, which includes a first external component 3 for controlling the opening and closing of a plurality of first energy dissipation holes 111 located on the outermost cylinder 11, and a first upper component 4, a first middle component 5, and a first lower component 6 for controlling the opening and closing of the passage. A plurality of first buoyancy-aiding air bags are provided on the outer side of the first external component 3. The first middle component 5 is connected to the first upper component 4 via a first telescopic member, and the first lower component 6 is connected to the first middle component 5 via a second telescopic member.

[0056] Please refer to Figure 9 , Figure 9This is a schematic diagram of the construction process for installing the dock column body using the first installation mechanism in the auxiliary installation device of the dock substructure of the present invention. Before the above-mentioned new dock substructure is put into the water, the first upper component 4, the first middle component 5 and the first lower component 6 are used to close the various channels in the dock column body 1, wherein the first upper component 4 is located in the top end of the dock column body 1, the first middle component 5 and the first lower component 6 are located in the bottom end of the dock column body 1, and the first middle component 5 and the first lower component 6 are arranged at intervals, and the first external component 3 is used to close the multiple first energy dissipation holes 111 on the outermost cylinder 11 of the dock column body 1, so that the dock column body 1 forms a hollow submerged tube structure. The multiple first buoyancy air bags outside the first external component 3 can make the dock column body 1 float on the water surface. At this time, the dock column body 1 can be transported long distances at sea by tugboat. After transporting to the designated location, the first lower assembly 6 is controlled to open each channel, and the second telescopic member is controlled to retract a preset distance, so that the first lower assembly 6 moves upward a preset distance. The first lower assembly 6 is then controlled to close each channel, allowing seawater to flow into the position below the first lower assembly 6 within the pier column 1. The first middle assembly 5 is then controlled to open each channel, and the first telescopic member is controlled to retract a preset distance and the second telescopic member is controlled to extend a preset distance, so that the first middle assembly 5 moves upward a preset distance. The first middle assembly 5 is then controlled to close each channel, and the above steps are repeated. The opening and closing of each channel on the pier column 1 is controlled by the first middle assembly 5 and the first lower assembly 6, respectively, and the contraction and extension of the first telescopic member and the second telescopic member are used to uniformly fill and sink the pier column 1 as the process progresses. The use of submerged tube installation can avoid the use of large transportation and crane ships, saving equipment costs, and the installation process is very simple, and the sinking process is safe and controlled. Among them, during the floating and diving process of the dock column 1, multiple first auxiliary air bags can provide sufficient buoyancy to the dock column 1, and the first auxiliary air bags can be remotely controlled to be inflated and deflated. This is an existing structure and will not be described in detail here.

[0057] In one embodiment, the first external component 3 includes a first frame 31 for being mounted on the outside of the pier column 1, a plurality of third telescopic members 32 disposed on the inner sidewalls of the first frame 31, and a plurality of first curved plates 33 disposed on the plurality of third telescopic members 32 and configured to completely cover the plurality of first energy dissipation holes 111 located on the outermost cylinder 11. The vertical cross-section of the first frame 31 may be an inverted U-shaped structure. When the first frame 31 is mounted on the outer side of the pier column 1, the inner bottom of the U-shape is positioned above the top of the pier column 1. The third telescopic members 32 then extend, causing the first curved plates 33 to abut against the outer side of the pier column 1, thereby integrally connecting the first frame 31 and the pier column 1. Furthermore, the plurality of first curved plates 33 completely cover the plurality of first energy dissipation holes 111 located on the outermost cylinder 11 of the pier column 1, thereby sealing the plurality of first energy dissipation holes 111 located on the outermost cylinder 11. The number of the plurality of first curved plates 33 can be the same as the number of the plurality of first energy dissipation holes 111 located on the outermost cylinder 11, and they correspond one to one. Each first curved plate 33 can be used to open and close a first energy dissipation hole 111. Of course, the first curved plate 33 can also be designed to cover a plurality of first energy dissipation holes 111, and the opening and closing of the plurality of first energy dissipation holes 111 can be controlled by a first curved plate 33. When it is necessary to release the connection between the first frame 31 and the pier column 1, the third telescopic member 32 is retracted to disengage the first curved plate 33 from the outside of the pier column 1. At this time, the first external component 3 can be unloaded and recycled. In one embodiment, the third telescopic member 32 is a jack.

[0058] Please refer to Figure 10 and Figure 11 , Figure 10 This is a partially enlarged schematic diagram of the first middle component in the auxiliary installation device of the dock substructure of the present invention. Figure 11The figure is a schematic diagram of the process of closing the channel of the first central assembly in the auxiliary installation device for the dock substructure of the present invention. In one embodiment, the first central assembly 5 includes a first mounting plate 7, which is respectively arranged in each channel. The first mounting plate 7 is connected to a first flexible plate 8 along its circumference. The first flexible plate 8 has an expanded state and a compressed state. In the expanded state, the first flexible plate 8 abuts the inner side wall of the channel and the first mounting plate 7 respectively; in the compressed state, the first flexible plate 8 is out of contact with the inner side wall of the channel. Each first mounting plate 7 is connected to the first upper assembly 4 via a first telescopic member. The first lower assembly 6 has the same structure as the first central assembly 5. Each first mounting plate 7 of the first lower assembly 6 is connected to the first mounting plate 7 of the first central assembly 5 located in the same channel via a second telescopic member. In actual use, an external force is first applied to switch the first flexible plate 8 from the free state to the compressed state, so that each first mounting plate 7 of the first central assembly 5 can enter the corresponding channel. Then, the external force is removed, and the first flexible plate 8 switches to an expanded state. At this time, the first flexible plate 8 abuts against the inner side wall of the channel and the first mounting plate 7 respectively. The force of the first flexible plate 8 expansion fixes the first flexible plate 8 and the first mounting plate 7 in the channel and seals the channel, which can play a role in stopping water. When the first middle component 5 is disassembled or needs to be moved, an external force is applied to switch the first flexible plate 8 from the expanded state to the compressed state. Since the first flexible plate 8 is out of contact with the inner side wall of the channel in the compressed state, the channel is now open and the first mounting plate 7 of the first middle component 5 can be easily disassembled or moved along the channel by the first telescopic member. In this way, through the arrangement of the first flexible plate 8 and the first mounting plate 7, the first middle component 5 can realize the opening and closing of each channel, and can also ensure that the first flexible plate 8 has a reliable seal with the inner side wall of the channel, which plays a role in stopping water. The first lower component 6 has the same structure as the first middle component 5 and its usage is the same as the first middle component 5, which will not be repeated here. When the first flexible plate 8 of the first lower assembly 6 is compressed, the second telescopic member can drive the first mounting plate 7 of the first lower assembly 6 to move along the channel. Preferably, the shape of the first mounting plate 7 is similar to the cross-sectional shape of the channel in which it is mounted. In one embodiment, the first telescopic member and the second telescopic member are telescopic rods.

[0059] In one embodiment, the first flexible plate 8 comprises a plurality of first plates having restorative elasticity. A plurality of fourth telescopic members 80 are equidistantly spaced along the circumference of the first mounting plate 7. The plurality of fourth telescopic members 80 correspond one-to-one to the plurality of first plates. One end of the fourth telescopic member 80 extends outside the first mounting plate 7 and is connected to the corresponding first plate. The first plate is hollow. A first electromagnet is disposed on a side of the first plate proximal to the fourth telescopic member 80, and a first metal member is disposed on a side of the first plate distal to the fourth telescopic member 80, cooperating with the first electromagnet. In actual use, the first electromagnet is energized to attract the cooperating first metal member, causing the first metal member to adhere to the first electromagnet. The force exerted by the first electromagnet on the first metal member causes the first metal member to compress the side of the first plate distal to the fourth telescopic member 80 toward the fourth telescopic member 80, thereby switching the first plate from a free state to a compressed state. The first plate is then disengaged from the inner wall of the channel. The first electromagnet is controlled to be de-energized, and the first plate body, under the action of its restoring elasticity, switches from a compressed state to an expanded state, so that the first plate body abuts the inner side wall of the channel and the first mounting plate 7 respectively. This achieves the expanded state and compacted state of the first flexible plate 8. When the first electromagnet is energized and the first plate body switches from a free state to a compressed state, the fourth telescopic member 80 is extended to move the compressed first plate body to contact the inner side wall of the channel. The first electromagnet is then controlled to be de-energized, and the fourth telescopic member 80 is controlled to be retracted, so that the first plate body switches from a compressed state to an expanded state. During this process, under the guidance of the fourth telescopic member 80, it is ensured that both sides of the first plate body abut against the inner side wall of the channel and the first mounting plate 7 respectively. At this time, the first plate body is still in a certain amount of extrusion state, which can effectively stop water, thereby achieving channel closure and water-stopping effects. In one embodiment, the fourth telescopic member 80 is a telescopic rod. In one embodiment, the first plate body is a flexible rubber sheet.

[0060] In one embodiment, the structure of the first upper component 4 is identical to that of the first middle component 5, and the first upper component 4 is used in the same manner as the first middle component 5, which will not be further described here. In one embodiment, to facilitate control of the position of the first upper component 4 within the first frame 31, the first upper component 4 is connected to the U-shaped inner bottom of the first frame 31 via a fifth telescopic member. In one embodiment, to facilitate movement of the first upper component 4, the first middle component 5, and the first lower component 6, the first frame 31 is provided with a plurality of guide rods, each corresponding to a plurality of channels of the pier column 1. The first upper component 4, the first middle component 5, and the first lower component 6 disposed within a channel slide onto the guide rods corresponding to the channel. When the first outer component 3 is mounted on the pier column 1, the guide rods are inserted into the corresponding channel.

[0061] Please refer to Figures 12 to 14 , Figure 12This is a structural diagram of the second installation mechanism in the auxiliary installation device for the dock substructure of the present invention. Figure 13 This is a schematic structural diagram of the second mounting mechanism in the auxiliary mounting device for the dock substructure of the present invention being mounted on the base. Figure 14 This is a schematic diagram of the construction process for installing the base using the second installation mechanism in the auxiliary installation device for the dock substructure of the present invention. This is to further optimize the construction process of the dock substructure of the present invention and reduce the resource cost investment of large-scale machinery and equipment. In one embodiment, the base 2 includes a sleeve 21 and a bottom plate 22 arranged at the bottom of the sleeve 21. The sleeve 21 is a truncated cone-shaped structure with upper and lower openings and a hollow interior. The second energy dissipation hole 211 is arranged on the sleeve 21. The auxiliary mounting device also includes a second mounting mechanism. The second mounting mechanism includes a second external component 9 for controlling the opening and closing of multiple second energy dissipation holes 211 on the sleeve 21 and a second upper component 10, a second middle component 20 and a second lower component 30 for controlling the opening and closing of the sleeve 21. A plurality of second buoyancy air bags are provided on the outside of the second external component 9. The number of second middle components 20 is set to be several. Several second middle components 20 are arranged between the second upper component 10 and the second lower component 30, and are arranged in sequence from top to bottom. The adjacent two middle components are connected by a first connecting rod 40. The middle component located on the uppermost side is connected to the second upper component 10 through a second connecting rod 50, and the middle component located on the lowermost side is connected to the second lower component 30 through a third connecting rod 60. The opening of the sleeve 21 is sealed using a second upper assembly 10, a second lower assembly 30, and several second middle assemblies 20. The second upper assembly 10 is located within the top of the sleeve 21, and the second outer assembly 9 seals the multiple second energy dissipation holes 211 on the sleeve 21, forming the sleeve 21 into a hollow submerged tube structure. Multiple second buoyancy airbags on the outer side of the second outer assembly 9 keep the base 2 afloat, allowing it to be transported long distances at sea using a tugboat. After being transported to the designated location, the second lower component 30 is first controlled to open the opening of the sleeve 21, and the second energy dissipation hole 211 located below the second lower component 30 is opened through the second external component 9, so that seawater is poured into the position of the sleeve 21 located below the second middle component 20. Then, from bottom to top, the second middle component 20 is controlled to open the opening of the sleeve 21, and the second energy dissipation hole 211 below the corresponding second middle component 20 is opened through the second external component 9, so that seawater gradually penetrates into the sleeve 21. In this way, the sleeve 21 can be evenly filled with water and sunk as the process progresses. The use of submerged tube installation can avoid the use of large-scale transportation and crane ships, saving equipment costs. Among them, during the process of floating and diving the base 2, multiple second auxiliary air bags can provide sufficient buoyancy to the base 2, and the second buoyancy air bags can be remotely controlled to be inflated and deflated. This is an existing structure and will not be described in detail here.

[0062] In one embodiment, the second external component 9 includes a second frame for being sleeved on the outside of the sleeve 21, a plurality of sixth telescopic members arranged on the inner side wall of the second frame, and a plurality of second curved plates respectively arranged on the plurality of sixth telescopic members and used to completely cover the plurality of second energy dissipation holes 211 on the sleeve 21. The second frame can be a frame with a similar profile to the sleeve 21, which is sleeved on the outside of the sleeve 21, and then extended by the sixth telescopic member to abut the second curved plate against the outside of the sleeve 21, so that the second frame and the sleeve 21 are connected as a whole, and the plurality of second curved plates completely cover the plurality of second energy dissipation holes 211 on the sleeve 21, thereby achieving the closure of the plurality of second energy dissipation holes 211 on the sleeve 21. The number of the plurality of second curved plates can be the same as the number of the second energy dissipation holes 211 on the sleeve 21, and correspond one to one, and each second curved plate can be used to open and close a second energy dissipation hole 211. Of course, the second curved plate can also be designed to cover multiple second energy dissipation holes 211, with a single second curved plate controlling the opening and closing of multiple second energy dissipation holes 211. To release the connection between the second frame and the sleeve 21, the sixth telescopic member is retracted to disengage the second curved plate from the outside of the sleeve 21, allowing the second external assembly 9 to be unloaded and recovered. In one embodiment, the sixth telescopic member is a jack.

[0063] In one embodiment, the second upper assembly 10 includes a second mounting plate disposed within the sleeve 21. A second flexible plate is connected to the second mounting plate along its circumference. The second flexible plate has an expanded state and a compressed state. In the expanded state, the second flexible plate abuts the inner sidewall of the sleeve 21 and the second mounting plate, respectively. In the compressed state, the second flexible plate is disengaged from the inner sidewall of the sleeve 21. The structures of the second middle assembly 20 and the second lower assembly 30 are identical to those of the second upper assembly 10. The second mounting plates of adjacent second middle assemblies 20 are connected by a first connecting rod 40. The second mounting plate of the uppermost second middle assembly 20 is connected to the second mounting plate of the second upper assembly 10 by a second connecting rod 50, and the second mounting plate of the lowermost second middle assembly 20 is connected to the second mounting plate of the second lower assembly 30 by a third connecting rod 60. In actual use, an external force is first applied to switch the second flexible plate of the second upper assembly 10 from a free state to a compressed state, allowing the second mounting plate of the second upper assembly 10 to enter the sleeve 21. Then, the external force is removed, and the second flexible plate of the second upper component 10 switches to an expanded state. At this time, the second flexible plate abuts against the inner wall of the sleeve 21 and the second mounting plate respectively. The force of the second flexible plate expansion fixes the second flexible plate and the second mounting plate of the second upper component 10 in the sleeve 21 and closes the opening of the sleeve 21, which can play a role in stopping water. When the second upper component 10 is disassembled or needs to be moved, an external force is applied to switch the second flexible plate of the second upper component 10 from the expanded state to the compressed state. Since the second flexible plate is out of contact with the inner wall of the sleeve 21 in the compressed state, the opening of the sleeve 21 is opened, and the second mounting plate of the second upper component 10 can be easily removed. In this way, through the arrangement of the second flexible plate and the second mounting plate, the second upper component 10 can realize the opening and closing of each channel, and can also ensure that there is a reliable seal between the second flexible plate and the inner wall of the sleeve 21, which plays a role in stopping water. The structures of the second middle component 20 and the second lower component 30 are the same as those of the second upper component 10, and their usage is the same as that of the second upper component 10, which will not be described in detail here. In one embodiment, the second flexible plate includes a plurality of second plates with restoring elasticity, and a plurality of seventh telescopic members are provided at equal intervals along the circumference of the second mounting plate. The plurality of seventh telescopic members correspond one-to-one to the plurality of second plates, and one end of the seventh telescopic member extends out of the second mounting plate and is connected to the corresponding second plate. The interior of the second plate is hollow, and a second electromagnet is provided on the side of the second plate close to the seventh telescopic member, and a second metal member that cooperates with the second electromagnet is provided on the side of the second plate away from the seventh telescopic member.In actual use, the second electromagnet is controlled to be energized to attract the second metal member that cooperates with it, so that the second metal member is adsorbed on the second electromagnet. The force exerted by the second electromagnet on the second metal member causes the second metal member to compress the second plate away from the seventh telescopic member in the direction of the seventh telescopic member, thereby switching the second plate from a free state to a compressed state. The second plate is disengaged from the inner wall of the sleeve 21. The second electromagnet is controlled to be deenergized, and the second plate, under the action of its restoring elasticity, switches from a compressed state to an expanded state, so that the second plate abuts the inner wall of the sleeve 21 and the second mounting plate, respectively. This achieves the expanded state and the compacted state of the second flexible plate. When the second electromagnet is energized and the second plate body is switched from a free state to a compressed state, the seventh telescopic member is extended to move the second plate body in the compressed state to contact the inner wall of the sleeve 21, and then the second electromagnet is controlled to be de-energized, and the seventh telescopic member is controlled to contract, so that the second plate body is switched from a compressed state to an expanded state. In this process, under the guidance of the seventh telescopic member, it is ensured that the two sides of the second plate body are respectively in contact with the inner wall of the sleeve 21 and the second mounting plate. At this time, the second plate body is still in a certain amount of extrusion state, which can effectively stop water, thereby achieving the closure of the sleeve 21 opening and the water-stopping effect. In one embodiment, the seventh telescopic member is a telescopic rod. In one embodiment, the second plate body is a flexible rubber plate.

[0064] The present invention also provides an installation method for installing a dock substructure using the auxiliary installation device, comprising the following steps:

[0065] (1) Installation of base 2;

[0066] (2) Installation of the pier column 1;

[0067] (2-1) Installing the first upper component 4, the first middle component 5, and the first lower component 6 on the pier column 1, and sealing each passage through the first upper component 4, the first middle component 5, and the first lower component 6, wherein the first upper component 4 is located in the top end of the pier column 1, and the first middle component 5 and the first lower component 6 are located in the bottom end of the pier column 1;

[0068] (2-2) Installing the first external component 3 on the pier column 1, and closing the plurality of first energy dissipation holes 111 on the outermost cylinder 11 through the first external component 3;

[0069] (2-3) transporting the pier column 1 to the water surface, and inflating the plurality of first auxiliary air bags so that the pier column 1 floats on the water surface;

[0070] (2-4) Use a tugboat to transport the pier column 1 to the designated location;

[0071] (2-5) by respectively controlling the inflation and deflation of the plurality of first auxiliary air bags, the bottom end of the pier column 1 is sunk into the water, and the top end of the pier column 1 floats above the water surface;

[0072] (2-6) Controlling the first lower component 6 to open each channel, and controlling the second telescopic member to retract a preset distance, so that the first lower component 6 moves upward a preset distance, and then controlling the first lower component 6 to close each channel;

[0073] (2-7) Controlling the first central component 5 to open each channel, controlling the first telescopic member to retract a preset distance, and controlling the second telescopic member to extend a preset distance, so that the first central component 5 moves upward a preset distance, and then controlling the first central component 5 to close each channel;

[0074] (2-8) Repeat steps (2-6) to (2-7), and control the deflation of multiple first auxiliary air bags according to the water filling condition of the pier column 1 to slowly sink the pier column 1 to a specified depth;

[0075] (2-9) Install the pier column 1 onto the base 2;

[0076] (2-10) Dismantle the first outer component 3, the first upper component 4, the first middle component 5, and the first lower component 6;

[0077] (3) Dock panel installation.

[0078] In the above step (1), the installation of the base 2 can adopt the existing conventional lifting and hoisting construction. Furthermore, in order to optimize the dock construction process and reduce the resource cost investment of large-scale mechanical equipment, considering that the base 2 includes a sleeve 21 and a bottom plate 22 arranged at the bottom of the sleeve 21, and the sleeve 21 is a truncated cone structure with upper and lower openings and a hollow interior, the base 2 is sealed into a submerged tube structure and installed by pouring water and sinking. Specifically, the specific process of installing the base 2 is described below:

[0079] (1-1) Prepare the second external component 9, the second upper component 10, the second middle component 20, and the second lower component 30 of the auxiliary installation device, wherein several second middle components 20 are prepared as needed, and use the second upper component 10, the second middle component 20, and the second lower component 30 to close the opening of the sleeve 21, wherein the second upper component 10 is located inside the top end of the sleeve 21, and the second external component 9 is used to close the multiple second energy dissipation holes 211 on the sleeve 21, so that the sleeve 21 forms a hollow submerged tube structure. Then, hoist the base 2 to the water surface, and inflate the multiple second auxiliary airbags outside the second external component 9 so that the base 2 floats on the water surface. Then, use a tugboat to tow the base 2 to the designated location, and control the inflation and deflation of the multiple second auxiliary airbags respectively, so that the bottom end of the base 2 sinks into the water and the top end of the base 2 floats above the water surface. Furthermore, in order to accurately position the base 2, a concrete anchor block can be set on the seabed at the installation location. The concrete anchor block is connected to the base 2 through a cable. By adjusting the length of the cable between the concrete anchor block and the base 2, the base 2 floating in the water can be accurately positioned.

[0080] (1-2) First, control the second lower component 30 to open the opening of the sleeve 21, and open the second energy dissipation hole 211 located below the second lower component 30 through the second external component 9. Seawater is poured into the position below the second middle component 20 on the lowermost side of the sleeve 21 from the opened second energy dissipation hole 211. Since the second middle component 20 on the lowermost side closes the opening of the sleeve 21, seawater will not flow into the position above the second middle component 20 on the lowermost side of the sleeve 21.

[0081] (2-2) Then, from bottom to top, the second middle component 20 is controlled in turn to open the opening of the sleeve 21, and the second energy dissipation hole 211 below the corresponding second middle component 20 is opened through the second external component 9, so that seawater gradually penetrates into the sleeve 21. In this way, as the process progresses, the sleeve 21 can be evenly filled with water and sunk. According to the water filling situation of the sleeve 21, the inflation volume of the second auxiliary airbag is released, so that the base 2 slowly sinks to the specified depth, and then the anchor rod 24 is installed to fix the base 2 to the foundation. A small crane ship is used to unload the second external component 9, the second upper component 10, the second middle component 20 and the second lower component 30, and graded blocks are dumped on the outside of the base 2 to form a riprap structure 25 to complete the installation of the base 2.

[0082] In the above step (2), in order to optimize the wharf construction process and reduce the resource cost investment of large-scale machinery and equipment, considering the cylindrical structure 11 of the wharf column 1, the wharf column 1 is sealed as a submerged tube structure and installed by flooding and sinking.

[0083] In the above steps (2-1) to (2-5), before the pier column 1 is put into the water, the first external component 3, the first upper component 4, the first middle component 5 and the first lower component 6 of the auxiliary installation device are prepared, and the first upper component 4, the first middle component 5 and the first lower component 6 are used to close the various channels in the pier column 1, wherein the first upper component 4 is located in the top end of the pier column 1, the first middle component 5 and the first lower component 6 are located in the bottom end of the pier column 1, and the first middle component 5 and the first lower component 6 are spaced apart. The first external component 3 is used to close the multiple first energy dissipation holes 111 on the outermost cylinder 11 of the pier column 1, so that the pier column 1 forms a hollow immersed tube structure. The pier column 1 is then hoisted onto the water surface, and the multiple first auxiliary air bags outside the first external component 3 are inflated so that the pier column 1 floats on the water surface. A tugboat is then used to tow the pier column 1 to the designated location. The multiple first auxiliary airbags built into the column are then inflated and deflated, causing the bottom end of the column 1 to sink into the water and the top end of the column 1 to float above the surface. Furthermore, to precisely position the pier column 1, concrete anchor blocks are installed on the seabed at the installation location. These anchor blocks are connected to the column 1 via cables. By adjusting the length of the cables between the anchor blocks and the column 1, the floating pier column 1 can be precisely positioned.

[0084] In the above steps (2-6) to (2-7), the first flexible plate 8 of the first lower component 6 is switched to a compressed state. At this time, seawater will flow into the position between the first middle component 5 and the first lower component 6 in the pier column body 1. Since the first middle component 5 closes the various channels in the pier column body 1, seawater will not flow into the position between the first upper component 4 and the first middle component 5 in the pier column body 1. Then, the second telescopic member is controlled to contract by a preset distance so that the first mounting plate 7 of the first lower component 6 is as close as possible to the first mounting plate 7 of the first middle component 5. Then, the first flexible plate 8 of the first lower component 6 is switched to an expanded state, closing the various channels in the pier column body 1 and preventing external seawater from flowing into the position between the first middle component 5 and the first lower component 6 in the pier column body 1. At this time, the seawater poured into the pier column body 1 is basically located below the first lower component 6. Then, the first flexible plate 8 of the first central component 5 is switched to a compressed state, and the first telescopic member is controlled to contract a preset distance and the second telescopic member is controlled to extend a preset distance, so that the first mounting plate 7 of the first central component 5 moves upward a preset distance, and then the first flexible plate 8 of the first central component 5 is switched to an expanded state to close the channels in the pier column 1. During this process, in order to facilitate the inflow of seawater, the third telescopic members 32 at the bottom of the first external component 3 can be controlled to contract, opening a row of first energy dissipation holes 111 on the pier column 1 near its bottom end, wherein the opened first energy dissipation holes 111 need to be located below the first central component 5, so that seawater can be poured from the opened first energy dissipation holes 111 into the position in the pier column 1 between the first central component 5 and the first lower component 6.

[0085] In steps (2-8) to (2-10), steps (2-6) to (2-7) are repeated. Depending on the level of water in the pier column 1, the air in the first auxiliary airbag is released, causing the pier column 1 to slowly sink to a specified depth. The socket portion 14 at the bottom of the pier column 1 is then installed on the socket portion 212 of the base 2. The socket portion 212 and the socket portion 14 are fixedly connected using a plurality of fasteners 23. Concrete anchoring is then applied at the connection between the socket portion 212 and the socket portion 14, thereby forming a solid integral body between the pier column 1 and the base 2. A small crane vessel is then used to unload the first outer assembly 3, the first upper assembly 4, the first middle assembly 5, and the first lower assembly 6, completing the installation of the pier column 1.

[0086] Please refer to Figure 15 , Figure 15This is a schematic diagram of a wharf employing a wharf substructure. The present invention also provides a wharf comprising a wharf superstructure 70 and multiple wharf substructures described above, with the wharf superstructure 70 disposed above the multiple wharf substructures described above. This wharf, including the aforementioned wharf substructure, possesses all the benefits of the aforementioned wharf substructures and will not be further elaborated here.

[0087] Among them, the dock panel can choose existing dock panel structures, such as Bailey frames, light trusses, precast concrete panels, grating panels, etc. The specific form of the dock panel can be determined according to the function of the dock. For example, if it is an oil or gas dock, the dock panel can be a light beam or frame equipped with a conveying pipe; if it is an observation dock with only pedestrian loads, the dock panel can be a hollow assembled grating panel; if it is a freight dock, the dock panel in the heavy equipment working area can be a steel beam and concrete slab, and the light load area can be a hollow assembled grating panel.

[0088] Compared with the prior art, the beneficial effects of the present invention are as follows: the pier column body 1 is provided with a multi-layer hollow cylinder 11 structure, each cylinder 11 is provided with a plurality of first energy dissipation holes 111, and a plurality of second energy dissipation holes 211 are provided on the base 2, which can weaken the adverse effects of severe sea conditions on the lower structure of the pier and ensure the stability of the pier structure under severe sea conditions during the construction period and the operation period; the innermost column 12 and the rib plate 13 structure of the pier column body 1 ensure the rigidity of the overall structure of the pier column body 1.

[0089] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any simple modifications, equivalent changes, and modifications to the above embodiments made in accordance with the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A method for installing a wharf substructure using an auxiliary installation device, characterized in that: The lower structure includes a pier column body and a base arranged at the bottom of the pier column body. The pier column body includes a plurality of cylinders nested in sequence from the outside to the inside and a column arranged in the innermost cylinder. Adjacent two cylinders and the innermost cylinder and the column are connected by a plurality of ribs. The cylinders are provided with a plurality of first energy dissipation holes. The base is hollow inside and is provided with a plurality of second energy dissipation holes. A channel penetrating the pier column body is formed between the adjacent two cylinders and the adjacent two ribs located in the two cylinders. The auxiliary mounting device includes a first mounting mechanism, which includes a first external component for controlling the opening and closing of a plurality of first energy dissipation holes located on the outermost cylinder, and a first upper component, a first middle component, and a first lower component for controlling the opening and closing of the channel. A plurality of first auxiliary airbags are provided on the outer side of the first external component, the first middle component is connected to the first upper component via a first telescopic member, and the first lower component is connected to the first middle component via a second telescopic member. The method comprises the following steps: (1) Base installation; (2) Installation of pier columns; (2-1) Installing the first upper assembly, the first middle assembly, and the first lower assembly on the pier column, and closing each passage through the first upper assembly, the first middle assembly, and the first lower assembly, wherein the first upper assembly is located within the top end of the pier column, the first middle assembly and the first lower assembly are located within the bottom end of the pier column, and the first middle assembly and the first lower assembly are spaced apart; (2-2) Installing the first external component on the pier column, and closing the plurality of first energy dissipation holes on the outermost cylinder through the first external component; (2-3) transporting the pier column to the water surface, and inflating the plurality of first auxiliary air bags so that the pier column floats on the water surface; (2-4) Use a tugboat to transport the pier column to the designated location; (2-5) respectively controlling the inflation and deflation of the plurality of first auxiliary air bags so that the bottom end of the pier column sinks into the water and the top end of the pier column floats above the water surface; (2-6) controlling the first lower component to open each channel, and controlling the second telescopic member to retract a preset distance, so that the first lower component moves upward a preset distance, and then controlling the first lower component to close each channel; (2-7) controlling the first central component to open each channel, controlling the first telescopic member to retract a preset distance, and controlling the second telescopic member to extend a preset distance, so that the first central component moves upward a preset distance, and then controlling the first central component to close each channel; (2-8) Repeat steps (2-6) to (2-7), and control the deflation of multiple first auxiliary air bags according to the water filling condition of the pier column to slowly sink the pier column to a specified depth; (2-9) Install the pier column onto the base; (2-10) Remove the first outer assembly, the first upper assembly, the first middle assembly, and the first lower assembly.

2. The installation method according to claim 1, characterized in that: The multiple ribs between two adjacent cylinders are arranged at equal intervals along the circumference of the dock column, the multiple ribs between the column and the innermost cylinder are arranged at equal intervals along the circumference of the dock column, the multiple ribs connected to the cylinder divide the cylinder into a plurality of opening areas, the multiple first energy dissipation holes on the cylinder are divided into a plurality of groups of first energy dissipation hole groups, and the plurality of groups of first energy dissipation hole groups correspond one-to-one to the plurality of opening areas on the cylinder, the first energy dissipation holes in each group of first energy dissipation hole groups are arranged on the corresponding opening area, and are arranged at equal intervals along the length direction of the dock column.

3. The installation method according to claim 1, wherein: The base includes a sleeve and a bottom plate arranged at the bottom of the sleeve. The sleeve is a truncated cone-shaped structure with upper and lower openings and a hollow interior. The top of the sleeve extends upward to form a socket portion. The bottom of the pier column body is provided with a socket portion for inserting into the socket portion. The socket portion and the socket portion are fixedly connected by a number of fasteners. The second energy dissipation hole is arranged on the sleeve.

4. The installation method according to claim 3, characterized in that: A concrete anchor is provided on the outside of the connection between the socket part and the spigot part; and / or the edge of the bottom plate extends outward to the outside of the sleeve to form a toe plate, and the toe plate is connected to the seabed through multiple anchor rods.

5. The installation method according to claim 1, wherein: A riprap structure is provided on the outer side of the base.

6. The installation method according to claim 1, wherein: The first external component includes a first frame for being sleeved on the outside of the dock column, a plurality of third telescopic members arranged on the inner side wall of the first frame, and a plurality of first curved plates respectively arranged on the plurality of third telescopic members and used for completely covering the plurality of first energy dissipation holes located on the outermost cylinder.

7. The installation method according to claim 1, characterized in that: The first middle component includes a first mounting plate respectively arranged in each channel, and the first mounting plate is connected to a first flexible plate along its circumference, and the first flexible plate has an expanded state and a compressed state; wherein, in the expanded state, the first flexible plate is respectively in contact with the inner side wall of the channel and the first mounting plate; in the compressed state, the first flexible plate is out of contact with the inner side wall of the channel; each first mounting plate is respectively connected to the first upper component through a first telescopic member; the first lower component has the same structure as the first middle component, and each first mounting plate of the first lower component is respectively connected to the first mounting plate of the first middle component located in the same channel through a second telescopic member.

8. The installation method according to claim 1, characterized in that: The base includes a sleeve and a base plate arranged at the bottom of the sleeve, the sleeve is a truncated cone-shaped structure with upper and lower openings and a hollow interior, the second energy dissipation hole is arranged on the sleeve, and the auxiliary mounting device also includes a second mounting mechanism, the second mounting mechanism includes a second external component for controlling the opening and closing of multiple second energy dissipation holes on the sleeve and a second upper component, a second middle component and a second lower component for controlling the opening and closing of the sleeve opening, a plurality of second auxiliary airbags are provided on the outside of the second external component, the number of the second middle components is set to be several, and several second middle components are arranged between the second upper component and the second lower component, and are arranged in sequence from top to bottom, and adjacent two second middle components are connected by a first connecting rod, the second middle component located on the uppermost side is connected to the second upper component by a second connecting rod, and the second middle component located on the lowermost side is connected to the second lower component by a third connecting rod.

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