LNG (Liquefied Natural Gas) wharf berthing pier structure suitable for berthing of multi-grade ships and construction method

Abstract

The invention provides an LNG wharf berthing pier structure suitable for multi-level ship berthing and a construction method, and belongs to the field of wharf design. The structure comprises an abutment main body (1), a berthing component (2), a reverse berthing component (3) and a fender (4), the abutment main body (1) is provided with an inner side berthing point and an outer side berthing point; the berthing components (2) are arranged on the portions, located below the inner side berthing point and the outer side berthing point, of the abutment body (1). The reverse berthing component (3) is further arranged on the portion, located above the inner side berthing point, of the abutment body (1). And the fender (4) is arranged on the sea side of the berthing pier surface. The method comprises the steps that the plane position of the abutment body (1) is determined; determining the position of a berthing point; the abutment main body (1) is arranged at an elevation; arranging a berthing component; and setting a fender. According to the method, the characteristics of the LNG ship type are met, the abutment is economical in size, berthing points are reasonably arranged, the construction cost is prevented from being increased, and ship berthing safety and normal operation are guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of dock design, and in particular relates to a LNG dock berthing pier structure and a construction method suitable for berthing of multiple grades of ships. Background Art

[0002] LNG terminals are usually arranged in a butterfly or straight line shape. Two mooring piers are usually symmetrically arranged on both sides of the working platform. Drum-shaped rubber fenders are set in the middle or both ends of the front of the mooring pier as the berthing point of the ship at the dock. When the range of ships that can be moored is large, auxiliary mooring piers can be added. In traditional designs, the mooring piers and the mooring components arranged under the mooring pier platform usually bear the horizontal load of the ship together.

[0003] According to the ship parameters of the built LNG transport ships, the LNG ship type is quite special, with high freeboard, large curvature on both sides of the ship, short straight section, and inconsistent center of the manifold and center of the hull. This results in that when the LNG ship berths at the terminal, when the center of the manifold is aligned with the unloading arm for unloading, the distances between the bow and stern of the ship and the center of the terminal are inconsistent. This makes the berthing point of small boats higher when designing high water levels and ballast conditions, and the berthing point of large ships lower when designing low water levels and full load conditions. For example, Chinese patent CN115182307A (publication date: October 14, 2022) is an LNG bunkering terminal facility and its implementation method, which is based on the traditional large-scale LNG loading and unloading terminal, and adds berthing piles, berthing pile sea-side fenders, berthing pile land-side fenders, shore-use cable guide facilities, integrated bases and protective facilities under the pier; this application not only retains the original terminal function on the basis of effectively improving the shoreline utilization rate of the existing large-scale LNG terminal berths, but also realizes the ship bunkering function of small or inland LNG terminals, which can meet the bunkering transportation of LNG bunkering ships below 10,000 to 30,000 cubic meters. This patent is not suitable for situations where the berthing point of small boats is higher, and cannot solve the problem that when LNG ships berth, the berthing point is different due to the situation of the ship.

[0004] However, LNG terminals often have a wide range of berthing ship types, that is, there are many levels of berthing ships and the scale of ship types varies greatly. If the traditional berthing pier design is used, it is easy to cause the contact surface between the ship and the fender to be small during berthing, the local pressure of the fender to be strong, and the hull to be partially damaged, or the small boat to shake, tilt or even capsize under the action of wind and waves. Chinese patent CN111676897A (publication date: September 18, 2020) discloses an asymmetric butterfly-shaped LNG terminal structure using a breakwater structure, including a working platform, multiple berthing piers and multiple mooring piers, multiple berthing piers are distributed on both sides of the working platform, and the working platform is provided with a loading and unloading arm two-layer platform and a boarding ladder, and the working platform is connected to a pipe gallery and pipe rack. For the existing butterfly-shaped LNG terminal with a design ship type of 8.267 million cubic meters, the symmetrical layout scheme has poor adaptability to spherical tank LNG ships, affecting the safety of ship berthing and mooring. In addition, the independent pile foundation structure has a relatively high cost, which improves the adaptability of the terminal to berthing various types of LNG ships and the safety of the terminal during operation. Although this patent can berth multiple levels of ships, it sets up multiple berthing piers distributed on both sides of the working platform and only studies the horizontal arrangement of fenders. There are still problems such as small vertical arrangement range or improper elevation.

[0005] If the conventional mooring pier structure design is used to meet the berthing requirements, it is easy to cause problems such as the pier elevation is too high, the structure is too thick, and the cantilever of the mooring component is too long. During use, the ship's mooring cables are also prone to being suspended due to the high elevation of the pier top. If the distance between the two mooring piers is reduced to conform to the outer curvature of the ship type and the height of the berthing point is lowered, the scale of the operating platform between the mooring piers will be reduced, and the terminal will not have advantages in safety, economy and aesthetics.

[0006] Therefore, in order to adapt to the berthing of multi-level LNG ships, how to adopt engineering measures to ensure berthing safety, avoid engineering risks, make the berthing point layout reasonable, and avoid the shortcomings of conventional berthing pier structures is an issue that needs to be solved urgently. Summary of the invention

[0007] In order to solve the problem that the LNG ship has high freeboard and short outer straight section, which leads to the berthing points of large and small ships being far apart and often not on the same horizontal line when multiple levels of ships are berthing, and the fenders are subjected to uneven force. The present invention provides a LNG terminal berthing pier structure and construction method suitable for berthing of multiple levels of ships, characterized in that it includes a pier body, a berthing component, a reverse berthing component, and a fender;

[0008] The pier body is provided with an inner berthing point and an outer berthing point; the inner berthing point and the outer berthing point are also provided with an upper berthing point and a lower berthing point on both sides; the inner berthing point is used for berthing of small ships, and the outer berthing point is used for berthing of large ships;

[0009] The pier body is provided with the mooring member below the inner berthing point and the outer berthing point, and the pier body is provided with the reverse mooring member above the inner berthing point;

[0010] The fender is arranged on the seaward side of the mooring pier.

[0011] Furthermore, the fender comprises a plurality of drum-shaped rubber fenders and an anti-collision plate, wherein the anti-collision plate is a vertical protective surface arranged in front of the drum-shaped rubber fender; and the size of the anti-collision plate is larger than the size of the arrangement range of the plurality of drum-shaped rubber fenders.

[0012] Furthermore, the outer berthing point is arranged with a plurality of drum-shaped rubber fenders and a fender; the top drum-shaped rubber fender is arranged in front of the outer berthing point; the bottom drum-shaped rubber fender is arranged in front of the mooring structure below the outer berthing point; and a plurality of drum-shaped rubber fenders are evenly arranged between the top drum-shaped rubber fender and the bottom drum-shaped rubber fender.

[0013] Furthermore, the inner berthing point is arranged with three drum-shaped rubber fenders and one anti-collision plate; the top drum-shaped rubber fender is arranged in front of the reverse mooring structure above the inner berthing point; the bottom drum-shaped rubber fender is arranged in front of the mooring structure below the inner berthing point; and a plurality of drum-shaped rubber fenders are evenly arranged between the top drum-shaped rubber fender and the bottom drum-shaped rubber fender.

[0014] Furthermore, the bottom elevation of the mooring member is lower than the lower berthing point; and the top elevation of the reverse mooring member is higher than the upper berthing point.

[0015] Furthermore, the horizontal position of the reverse berthing member is arranged to avoid the direction of the ship's cable laying.

[0016] The construction method of the LNG terminal berthing pier structure suitable for berthing of multiple grades of ships includes the following steps:

[0017] S1. Determine the plane position of the main body of the pier: Arrange the plane position of the main body of the pier according to the horizontal spacing required by the specification;

[0018] S2. Determine the berthing point location: Determine the upper berthing point and the lower berthing point range based on the maximum and minimum LNG ship side profile curvature and the ship-shore matching requirements during berthing; set the inner berthing point and the outer berthing point at the front of the pier body based on the berthing requirements of various ship types;

[0019] S3. Pier main body elevation setting: Considering the ship cable angle, the pier main body elevation is arranged at a moderate position between the upper berthing point and the lower berthing point; the pier main body scale is designed according to the conventional method to avoid adding unnecessary structural deadweight.

[0020] S4. Mooring member installation: Determine the size of the mooring member according to the force calculation, install the mooring member below the inner mooring point and the outer mooring point, and install the reverse mooring member above the inner mooring point;

[0021] S5. Fender installation: two drum-shaped rubber fenders and one anti-collision plate are installed at the outer berthing point, and three drum-shaped rubber fenders and one anti-collision plate are installed at the inner berthing point.

[0022] Furthermore, the upper berthing point and the lower berthing point of the pier are arranged according to a combination of two unfavorable working conditions: a designed high water level and a ship ballasting operation and a designed low water level and a ship fully loaded operation.

[0023] Compared with the prior art, the advantages and effects of this application are as follows:

[0024] 1. The LNG terminal berthing pier structure provided by the present invention is suitable for berthing of multiple levels of ships. In this structural design, a reverse berthing member is added to the top of the pier body above the inner berthing point, and the arrangement range of the fender at the inner berthing point is increased without expanding the plane scale of the pier body and reducing the spacing between the pier bodies, thereby ensuring the contact area between the small boat and the fender at the design high water level.

[0025] 2. The construction method of the LNG terminal mooring pier structure suitable for berthing of multiple levels of ships provided by the present invention, based on the design of conventional mooring pier structures, adjusts the arrangement of mooring components and takes into account the vertical arrangement range of the mooring components, so that the berthing point arrangement is reasonable, thereby achieving stable and safe berthing of multiple levels of ships at the LNG terminal and avoiding engineering risks.

[0026] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings as follows.

[0027] Based on the detailed description of the specific embodiments of the present application in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0029] in:

[0030] Figure 1 This is a schematic front elevation diagram of a LNG terminal berthing pier structure suitable for berthing of multiple levels of ships according to an embodiment of the present invention;

[0031] Figure 2 It is a schematic diagram of a ship and a pier for berthing when the fully loaded waterline reaches the designed low water level according to an embodiment of the present invention;

[0032] Figure 3 It is a schematic diagram of a ship and a berthing pier whose berthing ballast waterline reaches the designed high water level according to an embodiment of the present invention;

[0033] Figure 4 This is a flow chart of a method for constructing a LNG terminal berthing pier structure suitable for berthing of multiple grades of ships according to an embodiment of the present invention;

[0034] Figure numerals: 1. Pier body; 2. Mooring member; 3. Reverse mooring member; 4. Fender. Specific embodiments

[0035] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment.

[0036] It should be understood that the references to "one embodiment" or "this embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "one embodiment" or "this embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0037] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0038] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0039] The term "at least one" in this article is merely a description of the association relationship of associated objects, indicating that there may be three relationships. For example, at least one of A and B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0040] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.

[0041] Example 1

[0042] This embodiment relates to a LNG terminal berthing pier structure suitable for berthing of multiple grades of ships, characterized in that it includes a pier body 1, a berthing member 2, a reverse berthing member 3, and a fender 4;

[0043] The pier body 1 is provided with an inner berthing point and an outer berthing point; upper berthing points and lower berthing points are also provided on the upper and lower sides of the inner berthing point and the outer berthing point; the inner berthing point is used for berthing of small ships, and the outer berthing point is used for berthing of large ships;

[0044] The pier body 1 is provided with the mooring member 2 below the inner berthing point and the outer berthing point, and the pier body 1 is provided with the reverse mooring member 3 above the inner berthing point;

[0045] The fender 4 is arranged on the seaward side of the mooring pier.

[0046] Furthermore, the fender 4 includes a plurality of drum-shaped rubber fenders and a collision prevention plate, wherein the collision prevention plate is a vertical protective surface arranged in front of the drum-shaped rubber fender;

[0047] like Figure 1 Shown is a schematic diagram of the front elevation of a LNG terminal berthing pier structure for berthing multiple levels of ships.

[0048] Furthermore, the outer berthing point is arranged with two drum-type rubber fenders and a crash plate; one of the drum-type rubber fenders is arranged at the outer berthing point; the other drum-type rubber fender is arranged at the mooring structure 2 below the outer berthing point; the size of the crash plate is larger than the size of the arrangement range of the two drum-type rubber fenders, the lower part is lower than the bottom of the mooring structure, and the upper part is lower than the top surface of the pier body.

[0049] Furthermore, the inner berthing point is arranged with three drum-type rubber fenders and one anti-collision plate; the first drum-type rubber fender is arranged at the inner berthing point; the second drum-type rubber fender is arranged at the mooring structure 2 below the inner berthing point; the third drum-type rubber fender is arranged at the reverse mooring structure 3 above the inner berthing point; the size of the anti-collision plate is larger than the size of the arrangement range of the three drum-type rubber fenders, the lower part is lower than the bottom of the mooring structure, and the upper part is higher than the top of the reverse mooring structure.

[0050] Furthermore, the bottom elevation of the mooring member 2 is lower than the lower berthing point; and the top elevation of the reverse mooring member 3 is higher than the upper berthing point.

[0051] Furthermore, the reverse mooring member 3 is arranged in a horizontal position away from the direction of the ship's cable laying.

[0052] Technical effect of this embodiment: The mooring pier provided in this embodiment meets the characteristics of LNG ships, the pier scale is economical, and the berthing point arrangement is reasonable, which not only avoids increasing the project cost, but also ensures the safety of ship berthing and normal operation.

[0053] Example 2

[0054] like Figure 2 As shown, this embodiment is based on the LNG terminal berthing pier structure suitable for berthing of multiple levels of ships in Embodiment 1, and is an embodiment for berthing of large ships. The berthing pier includes a pier body 1, a berthing member 2, a reverse berthing member 3, and a fender 4;

[0055] The pier body 1 is provided with an inner berthing point and an outer berthing point; upper berthing points and lower berthing points are also provided on the upper and lower sides of the inner berthing point and the outer berthing point; the inner berthing point is used for berthing of small ships, and the outer berthing point is used for berthing of large ships;

[0056] The pier body 1 is provided with the mooring member 2 below the inner berthing point and the outer berthing point, and the pier body 1 is provided with the reverse mooring member 3 above the inner berthing point;

[0057] The fender 4 is arranged on the seaward side of the mooring pier.

[0058] At an LNG terminal with a butterfly-shaped or straight-line layout, two mooring piers are symmetrically arranged on both sides of the working platform as berthing points for ships at the terminal. When the range of ships that can be berthed is large, auxiliary mooring piers can be added.

[0059] When located at the designed low water level and fully loaded, the berthing point of the large ship at the full load waterline is low, and the straight section of the large ship is evenly moored above the fender of the mooring structure. The large ship is large in size and moored at the outer berthing point, and the upper and lower berthing points can be supported by the mooring piers.

[0060] Technical effect of this embodiment: The mooring pier provided in this embodiment can provide a good berthing for large LNG ships and effectively disperse the vertical and horizontal forces.

[0061] Example 3

[0062] like Figure 3 As shown, this embodiment is based on the LNG terminal berthing pier structure suitable for berthing of multiple levels of ships in embodiments 1 and 2, and is an embodiment for berthing of large ships. The berthing pier includes a pier body 1, a berthing member 2, a reverse berthing member 3, and a fender 4;

[0063] The pier body 1 is provided with an inner berthing point and an outer berthing point; upper berthing points and lower berthing points are also provided on the upper and lower sides of the inner berthing point and the outer berthing point; the inner berthing point is used for berthing of small ships, and the outer berthing point is used for berthing of large ships;

[0064] The pier body 1 is provided with the mooring member 2 below the inner berthing point and the outer berthing point, and the pier body 1 is provided with the reverse mooring member 3 above the inner berthing point;

[0065] The fender 4 is arranged on the seaward side of the mooring pier.

[0066] In an LNG terminal with a butterfly-shaped or straight-line layout, two mooring piers are symmetrically arranged on both sides of the working platform to serve as berthing points for ships at the terminal.

[0067] When located at the designed high water level and in ballasted condition, the berthing point of the boat at the full load waterline is relatively high, and the straight section of the boat is moored above the fender of the mooring structure. The boat is relatively small in size and is moored at the inner berthing point. The upper and lower berthing points can be supported by the mooring piers, and the anti-collision plate can disperse the berthing force of the ship to the reverse mooring structure, the pier body and the mooring structure.

[0068] Technical effect of this embodiment: The mooring pier provided in this embodiment can provide a good berthing for small LNG ships, effectively disperse the vertical and horizontal forces, and avoid the problems of too high pier elevation, too thick structure, too long cantilever of mooring components, etc. caused by using conventional mooring pier structure design to meet the berthing requirements.

[0069] Example 4

[0070] like Figure 4 As shown, this embodiment is a construction method of the LNG terminal berthing pier structure suitable for berthing of multiple levels of ships in Embodiments 1-3, characterized in that it includes the following steps:

[0071] S1. Determine the plane position of the pier body 1: Arrange the plane position of the pier body 1 according to the horizontal spacing required by the specification;

[0072] S2. Determine the berthing point location: Determine the upper berthing point and the lower berthing point range based on the maximum and minimum LNG ship side profile curvature and the ship-shore matching requirements during berthing; set the inner berthing point and the outer berthing point at the front of the pier body 1 based on the berthing requirements of various grades of ships;

[0073] S3. Elevation setting of the pier body 1: Considering the angle of the ship's cable, the elevation of the pier body 1 is arranged at a moderate position between the upper berthing point and the lower berthing point; the scale of the pier body is designed according to the conventional method.

[0074] S4, mooring member arrangement: determine the size of the mooring member according to the force calculation, arrange the mooring member 2 below the inner mooring point and the outer mooring point, and arrange the reverse mooring member 3 above the inner mooring point;

[0075] S5. Fender installation: two drum-shaped rubber fenders and one anti-collision plate are installed at the outer berthing point, and three drum-shaped rubber fenders and one anti-collision plate are installed at the inner berthing point.

[0076] Furthermore, the upper berthing point and the lower berthing point of the pier are arranged according to a combination of two unfavorable working conditions: a designed high water level and a ship ballasting operation and a designed low water level and a ship fully loaded operation.

[0077] The technical effect of this embodiment is as follows: on the basis of the conventional mooring pier structure design, a mooring component is provided, and there is no need to increase the thickness of the pier to ensure the fender contact area, thus avoiding unnecessary increase in the deadweight of the pier body, and the structure is safe and reasonable, and the project cost is economical.

[0078] The above description is only the preferred embodiment of the present invention, which does not limit the protection scope of the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Within the spirit and principle of the present invention, any change, modification, replacement, integration and parameter change of these embodiments by conventional substitution or capable of achieving the same function without departing from the principle and spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. The LNG terminal berthing pier structure is suitable for berthing of multiple levels of ships, characterized by: It comprises a pier body (1), a mooring member (2), a reverse mooring member (3), and a fender (4); The pier body (1) is provided with an inner berthing point and an outer berthing point; the inner berthing point and the outer berthing point are also provided with an upper berthing point and a lower berthing point on the upper and lower sides; the inner berthing point is used for berthing of small ships, and the outer berthing point is used for berthing of large ships; The pier body (1) is provided with the mooring member (2) below the inner berthing point and the outer berthing point, and the pier body (1) is provided with the reverse mooring member (3) above the inner berthing point; The fender (4) is arranged on the seaward side of the pier.

2. The LNG terminal berthing pier structure suitable for berthing of multiple grades of ships according to claim 1 is characterized in that: The fender (4) comprises a plurality of drum-shaped rubber fenders and an anti-collision plate, wherein the anti-collision plate is a vertical protective surface arranged in front of the drum-shaped rubber fender; and the size of the anti-collision plate is larger than the size of the arrangement range of the plurality of drum-shaped rubber fenders.

3. The LNG terminal berthing pier structure suitable for berthing of multiple grades of ships according to claim 2 is characterized in that: The outer berthing point is arranged with a plurality of drum-shaped rubber fenders and a fender; the top drum-shaped rubber fender is arranged in front of the outer berthing point; the bottom drum-shaped rubber fender is arranged in front of the mooring structure (2) below the outer berthing point; and a plurality of drum-shaped rubber fenders are evenly arranged between the top drum-shaped rubber fender and the bottom drum-shaped rubber fender.

4. The LNG terminal berthing pier structure suitable for berthing of multiple grades of ships according to claim 3 is characterized in that: The inner berthing point is arranged with three drum-shaped rubber fenders and one anti-collision plate; the top drum-shaped rubber fender is arranged in front of the reverse mooring structure (3) above the inner berthing point; the bottom drum-shaped rubber fender is arranged in front of the mooring structure (3) below the inner berthing point; and a plurality of drum-shaped rubber fenders are evenly arranged between the top drum-shaped rubber fender and the bottom drum-shaped rubber fender.

5. The LNG terminal berthing pier structure suitable for berthing of multiple grades of ships according to claim 4 is characterized in that: The bottom elevation of the mooring member (2) is lower than the lower berthing point; and the top elevation of the reverse mooring member (3) is higher than the upper berthing point.

6. The LNG terminal berthing pier structure suitable for berthing of multiple grades of ships according to claim 5, characterized in that: The reverse mooring member (3) is arranged at a horizontal position away from the direction of the ship's cable laying.

7. The construction method of the LNG terminal berthing pier structure suitable for berthing of multiple grades of ships as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Determine the plane position of the pier body (1): arrange the plane position of the pier body (1) according to the horizontal spacing required by the specification; S2. Determine the berthing point location: Determine the upper berthing point and the lower berthing point range based on the maximum and minimum LNG ship side profile curvatures and the requirements for ship-shore matching during berthing; set the inner berthing point and the outer berthing point at the front of the pier body (1) based on the berthing requirements of various ship types; S3. Setting the elevation of the pier body (1): Considering the angle of the ship's cable, the pier body (1) is arranged at a moderate elevation between the upper berthing point and the lower berthing point; S4, mooring member arrangement: determining the size of the mooring member according to force calculation, arranging the mooring member (2) below the inner mooring point and the outer mooring point, and arranging the reverse mooring member (3) above the inner mooring point; S5. Fender installation: two drum-shaped rubber fenders and one anti-collision plate are installed at the outer berthing point, and three drum-shaped rubber fenders and one anti-collision plate are installed at the inner berthing point.

8. The construction method of the LNG terminal berthing pier structure suitable for berthing of multiple grades of ships according to claim 7 is characterized in that: The upper berthing point and the lower berthing point of the pier in step S2 are set according to the combination of two unfavorable working conditions: the designed high water level and the ship ballast operation and the designed low water level and the ship fully loaded operation.

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