CN114775516A - Assembly type abutment structure for wharf engineering and using method thereof - Google Patents

Abstract

The invention discloses an assembled abutment structure for wharf engineering and a using method thereof, wherein the structure comprises a pile foundation, a slotted modular abutment, a connecting steel frame and accessory facilities; the pile foundation is connected with the lower end of the open-slot type modular abutment, the connecting steel frame is positioned in a slot at the upper end of the open-slot type modular abutment, and the accessory facilities are prefabricated on the open-slot type modular abutment; the slotted modular abutment comprises a ship-leaning module and a mooring cable module, the notch is positioned at the joint of the ship-leaning module and the mooring cable module, the notch consists of a ship-leaning module prefabricated notch and a mooring cable module prefabricated notch, and the notches are uniformly distributed on the slotted modular abutment; the pile foundation comprises a steel pipe pile and a corrugated steel pipe, and the corrugated steel pipe is welded on the pile top of the steel pipe pile. This application is connected different modules through connecting steelframe and notch post-cast strip and is become an organic whole, has ensured pier structure's wholeness and biography power validity to through prefabricated mode, improved component quality and construction progress.

Description

A prefabricated pier structure for wharf engineering and using method thereof

technical field

The invention belongs to the field of building structural component design, in particular to a prefabricated pier structure for wharf engineering and a method for using the same.

Background technique

The conventional pier and abutment structures of wharf projects mainly include prefabricated pile foundations and cast-in-place piers, but there are a lot of problems with conventional piers, such as: (1) The upper piers are made of large-volume cast-in-place concrete; Relying on the pile foundation to build the fence system, erecting the integral bottom form and side form for pouring, it takes a long time, and the measures such as load-bearing hoop, wood, formwork and other measures are expensive; It is necessary to wait for the tide level during construction and the splash zone, and the construction window period is limited, and the newly poured concrete has the risk of being submerged by the tide; (3) The large-volume piers involve layered pouring, and each layer needs to wait for the strength to be poured after the completion of the pouring. (4) Expansion and shrinkage cracks are prone to occur between the upper and lower concrete, which affects the overall quality and durability of the structure; (5) The installation of auxiliary facilities involves various embedded bolts, steel components, etc., and it is difficult to locate on the water. , High risk, easy to corrode during the construction period in the water environment, affecting the use.

Based on the related defects of the pier and abutment structure of conventional wharf engineering, engineers and technicians should consider fully relying on the specialized production capacity and excellent maintenance conditions of the onshore prefabrication plant, modular prefabrication of the pier and abutment, and then assembled on the water by ship crane. Installation, to achieve high quality and durability of the overall structure and rapid assembly of construction.

Chinese patent CN102943482A discloses a prefabricated pier pre-tightened water-stop cofferdam, which comprises a prefabricated pier composed of a pier body and a pier base, a cofferdam wall is connected to the prefabricated pier, and a ring is arranged on the prefabricated pier Expansion waterstops are arranged between the ring beam, the prefabricated abutment and the ring beam; the cofferdam wall is assembled from cofferdam blocks, and the cofferdam wall is tensioned horizontally by the tension system; A plurality of internal support systems are arranged between the wall and the pier body of the prefabricated abutment, and a bottom tightening device is arranged between the inner wall of the bottom of the cofferdam wall and the pier seat of the prefabricated abutment; the cofferdam wall is vertically suspended vertically. The device is tightened. Among them, the cofferdam wall is self-stabilized by various pre-tightening structures and then held on the prefabricated pier. The cofferdam wall is a tool-type assembly combination. After relaxing the pre-tightening devices, the steel cofferdam can be dismantled as a whole. After inspection and repair, it can be used again and again, which greatly reduces the labor intensity, effectively speeds up the construction progress, and further reduces the construction cost.

Chinese patent CN114354625A discloses a prefabricated abutment detection device. The device includes: a rotating system, on which there is an installation area for placing a prefabricated pier, the rotating system is used to drive the prefabricated pier to rotate; a detection system, including a profile image for acquiring the side surface and the top surface of the prefabricated pier The structured light imaging subsystem and the infrared imaging subsystem for acquiring the infrared image of the prefabricated pier are located above the rotating system and outside the installation area; the control system is connected with the rotating system and the detection system. It provides a prefabricated abutment detection device, which can comprehensively detect the external dimensions, surface defects and internal defects of the prefabricated abutment, so as to ensure that the prefabricated abutment meets the factory requirements.

Although the above-mentioned patents give the technical method of using prefabricated piers, there are also related key technical problems that need to be overcome, mainly including: (1) The piers of the wharf project need to bear huge ship loads, and the lower pile foundation The number of piers is large, and the plane size of the piers is generally large. It is difficult for general crane equipment to lift and install the prefabricated piers. Therefore, it should be split, and the piers should be divided into multiple modules according to the actual use requirements and lifting capacity. Prefabricated and installed separately; (2) The conventional cast-in-place piers are provided with steel bars in all directions, up, down, left, and right, and the concrete is continuously poured on the plane, so that when the entire pier is partially stressed, the rest of the pier transmits force through the inside of the pier. Participate in bearing the load together and transfer the load to all the pile foundations. However, after the piers are divided into modules and prefabricated separately, the continuous laying of steel bars is impossible, so innovative methods should be used to connect multiple modules; (3) The steel pipe piles of the conventional cast-in-situ piers are extended into the cast-in-place piers, and the upper and lower parts are connected reliably through the pile core reinforcement cage and the pile core concrete. When the fabricated piers are used, the pile foundation and the precast piers Generally, it can only be connected by grouting after reserved pile holes. Due to the size of the reserved pile holes, the pile foundation needs to be connected and strengthened with prefabricated piers by innovative means. Avoid this process of pile core structure.

SUMMARY OF THE INVENTION

In order to solve the above problems, in order to realize the strengthening connection between the pile foundation and the prefabricated abutment, and the multi-module connection of the prefabricated abutment, the technical effect of improving the quality of the components and speeding up the construction progress is achieved.

In order to achieve the above effects, the present invention designs a prefabricated pier structure for wharf engineering and a method of using the same.

A prefabricated pier structure for wharf engineering, comprising a pile foundation, a slotted modular pier, a connecting steel frame and ancillary facilities;

the pile foundation is connected with the lower end of the slotted modular abutment;

The connecting steel frame is located in the slot on the upper end of the slotted modular pier;

The ancillary facilities are prefabricated on slotted modular abutments.

Preferably, the slotted modular abutment includes a ship docking module and a mooring module;

the notch is located at the connection between the berthing module and the mooring module;

The notch is composed of a prefabricated notch for the berthing module and a prefabricated notch for the mooring module;

The slots are evenly distributed on the slotted modular abutment.

Preferably, the pile foundation comprises steel pipe piles and corrugated steel pipes;

The corrugated steel pipe is welded on the top of the steel pipe pile.

Preferably, the diameter of the corrugated steel pipe is equal to the diameter of the steel pipe pile; the height of the corrugated steel pipe is not less than the diameter of the steel pipe pile.

Preferably, the bottom of the slotted modular abutment is provided with reserved pile holes, and the number of the reserved pile holes is the same as that of the pile foundation.

Preferably, the diameter of the reserved pile hole is larger than the diameter of the pile foundation, and the depth of the reserved pile hole is not less than the height of the corrugated steel pipe.

Preferably, the auxiliary facilities include rubber fenders and bollards; the rubber fenders are prefabricated and installed on the side of the ship-berthing module; the bollards are prefabricated and installed on the mooring module.

Preferably, the shape and size of the connecting steel frame match the shape and size of the slot of the slotted modular abutment.

Preferably, the connecting steel frame is a steel pipe combined steel frame, a profiled steel combined steel frame or a high-strength steel bar combined steel frame.

A method for using an assembled pier structure for dock engineering, comprising the following steps:

S1. Prepare the pile foundation, and connect the steel pipe pile and the corrugated steel pipe into one;

S2. Use piling ship to sink piles;

S3. Prefabricate the ship berthing module and mooring module, and simultaneously install the auxiliary facilities in place at one time;

S4. Hoist the ship-berthing module and the mooring module on the upper part of the pile foundation, and the reserved pile holes are directly supported on the top surface of the pile foundation;

S5. Through grouting, the pile foundation is connected with the ship-berthing module and the mooring module to form a whole, and the bottom formwork adopts a simple hanging formwork process;

S6, hoist the connecting steel frame into the slot;

S7, grouting in the notch, so that the berthing module and the mooring module are connected as a whole, that is, a slotted modular pier is formed.

The advantages and effects of the present application are as follows:

1. The slotted modular pier is a prefabricated structure, and it is no longer necessary to build a fence system, erect a formwork and pour a large-volume pier concrete on site, which can improve the quality of components, speed up the construction progress, and reduce the cost of measures.

2. The different modules of the modular pier and abutment are connected into one by connecting the steel frame and the post-casting belt in the slot, which ensures the integrity of the pier and abutment structure and the effectiveness of force transmission.

3. The connecting steel frame only needs to be hoisted in the slot of the slotted modular pier, and the post-casting belt construction in the slot does not need to erect the template, and the construction convenience is superior.

4. The steel pipe pile is strengthened and connected to the slotted modular abutment through corrugated steel pipe, which does not require on-site construction of the pile core reinforcement cage and the pile core concrete, which directly saves the process.

5. The rubber fenders and bollards are installed on the berthing module and the mooring module in the prefabricated factory, and do not need to be installed on the water, which improves the accuracy and construction safety.

6. A method of using a prefabricated pier structure for a wharf project designed in this application has simple steps and is easy to use. In a real construction project, it can significantly speed up the construction progress and reduce the overall construction cost.

The above description is only an overview of the technical solution of the present application, in order to be able to understand the technical means of the present application more clearly, so that it can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more clearly understandable , the preferred embodiments of the present application and the accompanying drawings are described in detail below.

The above and other objects, advantages and features of the present application will be more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are For some embodiments of the present application, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. In the drawings, each element or section is not necessarily drawn to actual scale.

Fig. 1 is the overall installation diagram of the prefabricated abutment provided by the present invention;

Fig. 2 is pile foundation fabrication drawing provided by the present invention;

Fig. 3 is the structure diagram of the berthing module provided by the present invention;

4 is a structural diagram of a mooring module provided by the present invention;

Figure 5 is a plan view of abutment splicing provided by the present invention;

6 is a structural diagram of a connecting steel frame provided by the present invention;

7 is a plan view of the connection steel frame provided by the present invention;

8 is a connection diagram of a pile foundation abutment provided by the present invention;

Reference numerals: 1, pile foundation; 11, steel pipe pile; 12, corrugated steel pipe; 2, slotted modular abutment; 21, berth module; 22, mooring module; 23, notch; Ship module prefabricated slot; 23b, mooring module prefabricated slot; 24, reserved pile hole; 3, connecting steel frame.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. In the following description, specific details such as specific configurations and components are provided merely to assist in a comprehensive understanding of embodiments of the present application. Accordingly, it should be apparent to those skilled in the art that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

It should be understood that reference throughout the specification to "one embodiment" or "the present embodiment" means that a particular feature, structure or characteristic associated with the embodiment is included in at least one embodiment of the present application. Thus, appearances of "one embodiment" or "this embodiment" in various places throughout this specification are not necessarily necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, this application may repeat reference numerals and/or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed.

The term "and/or" in this article is only an association relationship to describe associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, which can mean: A alone exists, B alone exists, and A and B exist simultaneously. There are three cases of B. In this article, the term "/and" is to describe another related object relationship, which means that there can be two relationships, for example, A/ and B, which can mean that A exists alone, and A and B exist alone. , In addition, the character "/" in this text generally indicates that the related objects are an "or" relationship.

The term "at least one" in this paper is only an association relationship to describe the associated objects, which means that there can be three kinds of relationships, for example, at least one of A and B, it can mean that A exists alone, A and B exist at the same time, There are three cases of B alone.

It should also be noted that in this document, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply those entities or operations There is no such actual relationship or order between them. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion.

Example 1

This embodiment mainly introduces the design of a prefabricated pier structure for wharf engineering; please refer to FIG. 1 for the specific structure, which is an overall installation diagram of the prefabricated pier provided by the present invention.

A prefabricated pier structure for wharf engineering, comprising a pile foundation 1, a slotted modular pier 2, a connecting steel frame 3, and ancillary facilities;

The pile foundation 1 is connected with the lower end of the slotted modular abutment 2;

The connecting steel frame 3 is located in the slot 23 at the upper end of the slotted modular abutment 2;

The auxiliary facilities are prefabricated on the slotted modular abutment 2 .

Further, the slotted modular abutment 2 includes a ship docking module 21 and a mooring module 22; for the specific structures of the ship docking module 21 and the mooring module 22, please refer to FIG. 3 and FIG. 4; FIG. 3 is provided by the present invention. The structure diagram of the berthing module; FIG. 4 is the structure diagram of the mooring module provided by the present invention.

The slot 23 is located at the connection between the docking module 21 and the mooring module 22;

The notch 23 is composed of a prefabricated notch 23a of the berthing module and a prefabricated notch 23b of the mooring module;

The slots 23 are evenly distributed on the slotted modular abutment 2 .

Further, the pile foundation 1 includes a steel pipe pile 11 and a corrugated steel pipe 12;

The corrugated steel pipe 12 is welded on the top of the steel pipe pile 11; please refer to FIG. 2 for the production diagram of the pile foundation.

Further, the diameter of the corrugated steel pipe 12 is equal to the diameter of the steel pipe pile 11 ; the height of the corrugated steel pipe 12 is not less than the diameter of the steel pipe pile 11 .

Further, the bottom of the slotted modular abutment 2 is provided with reserved pile holes 24 , and the number of the reserved pile holes 24 is the same as that of the pile foundation 1 .

Further, the diameter of the reserved pile hole 24 is larger than the diameter of the pile foundation 1 , and the depth of the reserved pile hole 24 is not less than the height of the corrugated steel pipe 12 .

Further, the auxiliary facilities include rubber fenders and bollards; the rubber fenders are prefabricated and installed on the side of the ship docking module 21 ; the bollards are prefabricated and installed on the mooring module 22 .

Further, the shape and size of the connecting steel frame 3 match the shape and size of the slot 23 of the slotted modular abutment 2 ; please refer to FIG. 6 for the structural diagram of the connecting steel frame.

Further, the connecting steel frame 3 is a steel pipe combined steel frame, a section steel combined steel frame or a high-strength steel bar combined steel frame; please refer to FIG. 7 for the plan view of the connecting steel frame.

According to the "Wharf Structural Design Specification", if the steel pipe pile enters the superstructure (pier, pile cap or beam) 1 times the pile diameter, the pile core structure may not be set. However, in the domestic water transportation industry wharf projects, the pile core structure is simultaneously set as a "reinforcing lock" after the steel pipe pile enters the superstructure with 1 times the pile diameter, mainly to enhance the bonding ability of the steel pipe pile and the upper concrete. However, the construction of the pile core structure is relatively complicated. It is necessary to set a back cover template inside the pile diameter, make a steel cage, hoist the steel cage, and pour it with micro-expanded concrete. Wait for the increase of the concrete strength to meet the design requirements (generally 80%) before proceeding. Construction of the superstructure. That is to say, there is an obvious "before and after" process relationship between this process and the pile foundation project and the upper pier project, and the construction period is relatively protracted. Based on the above situation, on the premise of first meeting the requirements of the specification, the present invention innovatively uses the corrugated steel pipe to be connected with the steel pipe pile, and then built into the upper pier. The ability of the steel pipe pile to combine with the superstructure concrete (or grouting material) ensures the safety of the connection, and the "reinforcing lock" of the pile core structure can be omitted in synchronization, which saves the construction period and speeds up the construction.

For the cast-in-place pier under the conventional technical scheme, the steel bars are continuously laid and concrete is poured, and the concrete mainly relies on the steel bars to transmit the shear force, tensile force and bending moment. In order to effectively ensure the force transmission between the prefabricated pier modules, the present invention innovatively uses a connecting steel frame structure. The connecting steel frame mainly adopts steel pipe combination steel frame, profile steel combination steel frame or high-strength steel rod combination steel frame. Compared with traditional steel cages, it has the characteristics of high strength, high rigidity, convenient lifting and transportation, and is not easy to deform. It can be used to replace steel bars. Power transmission, to be reliable and effective. The production of the connecting steel frame can also be completed by fully relying on professional prefabricated factories or steel pipe pile manufacturers. It can complete the production, connection, flaw detection, anti-corrosion and other work at one time. The product quality is high, and it can also save on-site construction personnel. Banding, hot bending and other operations, improve production efficiency and improve the safety of water operators.

For the construction of cast-in-place piers, first of all, steel hoops need to be erected on the pile foundation to bear the full weight of the upper structure. Therefore, steel hoop systems with larger specifications and greater frictional resistance are required. The steel hoop system needs to erect fences, bottom molds and side molds. The measures are huge and the cost is high. When the quality of the steel hoop system or the enclosure system is not good enough, safety accidents such as collapse are likely to occur. When the quality of the formwork is not good enough, environmental protection accidents such as concrete leakage are likely to occur, which are all major hidden dangers. The prefabricated pier structure provided by the invention can be directly hoisted and supported on the steel pipe pile, which is the support system during the construction period. technical characteristics.

The slotted modular abutment designed in this embodiment is a prefabricated structure, which eliminates the need to build a fence system, erect a formwork, and pour a large-volume pier concrete on site, thereby improving the quality of components, speeding up the construction progress, and reducing the cost of measures.

In this embodiment, different modules of the modular abutment are connected into one by connecting the steel frame and the post-casting belt in the slot, which ensures the integrity of the abutment structure and the effectiveness of force transmission.

Example 2

Based on the above Embodiment 1, this embodiment mainly introduces an optimal design of a prefabricated pier structure for wharf engineering.

A prefabricated pier structure for wharf engineering includes: pile foundation 1, slotted modular pier 2, connecting steel frame 3, and auxiliary facilities.

As a preferred technical solution of the present invention, the pile foundation 1 is composed of a steel pipe pile 11 and a corrugated steel pipe 12 . The slotted modular pier 2 can be divided into a ship-berthing module 21 and a mooring module 22 according to actual needs and construction lifting capacity. The slotted modular abutment 2 is internally provided with a slot 23 and a reserved pile hole 24 .

As a preferred technical solution of the present invention: after the pile driving is completed, the ship-receiving module 21 and the mooring module 22 are respectively hoisted on the upper part of the pile foundation 1, and the corrugated steel pipe 12 on the top of the pile foundation 1 is just placed on the slotted modular pier In the reserved pile hole 24 of the platform 2; grouting in the reserved pile hole 24 to form the connection between the pile foundation 1 and the ship-berthing module 21 and the mooring module 22.

As a preferred technical solution of the present invention: after the pile foundation 1 is connected with the ship-berthing module 21 and the mooring module 22, the connecting steel frame 3 is placed in the slot 23 of the slotted modular abutment 2, and placed in the slot 23 of the slotted modular pier 2. Grouting is carried out in the slot 23 to form an integral connection between the ship docking module 21 and the mooring cable module 22; please refer to Figure 5 for the plan view of the pier splicing.

As a preferred technical solution of the present invention, the auxiliary facilities include rubber fenders and bollards, all of which are installed on the ship docking module 21 and the mooring module 22 in the prefabrication factory.

As a preferred technical solution of the present invention, when the steel pipe pile 11 is fabricated, the corrugated steel pipe 12 is welded on the top of the pile to form an integrated pile foundation 1 . The diameter of the corrugated steel pipe 12 is equal to the diameter of the steel pipe pile 11 . The height of the corrugated steel pipe 12 is not less than the diameter of the steel pipe pile 11 .

As a preferred technical solution of the present invention: the positions and quantities of the reserved pile holes 24 are consistent with those of the pile foundation 1, the diameter of the reserved pile holes 24 is larger than the diameter of the pile foundation 1, and the depth of the reserved pile holes 24 is not less than that of the corrugated steel pipe 12. the height of.

As a preferred technical solution of the present invention, fine stone concrete or other high-strength grouting materials can be used for grouting in the reserved pile holes 24; please refer to FIG. 8 for the connection diagram of the pile foundation and abutment.

As a preferred technical solution of the present invention, the notch 23 provided inside the slotted modular abutment 2 is formed by combining the notch 23a provided during the prefabrication of the ship berthing module 21 and the notch 23b provided during the prefabrication of the mooring module 22. to make.

As a preferred technical solution of the present invention, the connecting steel frame 3 may be a steel pipe combined steel frame, a section steel combined steel frame or a high-strength steel bar combined steel frame.

As a preferred technical solution of the present invention, the shape and size of the connecting steel frame 3 match the shape and size of the slot 23 of the slotted modular abutment 2 .

As a preferred technical solution of the present invention, fine stone concrete or other high-strength grouting materials can be used for grouting in the slot 23 .

The connecting steel frame designed in the present application only needs to be hoisted in the slot of the slotted modular pier, and the post-casting belt construction in the slot does not require erecting a template, and the construction is convenient.

The steel pipe pile designed in the present application is reinforced and connected to the slotted modular pier through corrugated steel pipe, which does not require on-site construction of the pile core reinforcement cage and the pile core concrete, which directly saves the process.

The rubber fenders and bollards designed in the present application are installed on the berthing module and the mooring module in the prefabrication factory, and do not need to be installed on the water, which improves the accuracy and construction safety.

Example 3

Based on the above-mentioned Embodiments 1-2, this embodiment mainly introduces a method for using a prefabricated pier structure for wharf engineering, which includes the following steps:

S1, prepare the pile foundation 1, and connect the steel pipe pile 11 and the corrugated steel pipe 12 into one body;

S2. Use piling ship to sink piles;

S3. Prefabricate the ship docking module 21 and the mooring module 22, and simultaneously install the auxiliary facilities in place at one time;

S4, hoist the ship-berthing module 21 and the mooring module 22 on the upper part of the pile foundation 1, and the reserved pile holes 24 are directly supported on the top surface of the pile foundation 1;

S5. Connect the pile foundation 1 with the ship-berthing module 21 and the mooring module 22 by grouting to form a whole, and the bottom formwork can adopt a simple hanging formwork process;

S6, hoist the connecting steel frame 3 into the slot 23;

S7, grouting in the slot 23, so that the ship docking module 21 and the mooring module 22 are connected as a whole, that is, the slotted modular abutment 2 is formed.

A method of using a prefabricated pier structure for a wharf project designed in this application has simple steps and is convenient to use, and in a real construction project, it can significantly speed up the construction progress and reduce the overall construction cost.

The above descriptions are only preferred embodiments of the present invention, which are not intended to limit the protection scope of the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any changes, modifications, substitutions, integrations and parameter changes to these embodiments without departing from the principles and spirit of the present invention, through conventional substitutions or capable of achieving the same function within the spirit and principles of the present invention, all fall within the scope of the present invention. into the protection scope of the present invention.

Claims (10)

1. An assembled abutment structure for wharf engineering is characterized by comprising a pile foundation (1), a slotted modular abutment (2), a connecting steel frame (3) and auxiliary facilities;

the pile foundation (1) is connected with the lower end of the slotted modular abutment (2);

the connecting steel frame (3) is positioned in a notch (23) at the upper end of the slotted modular abutment (2);

the accessory facilities are prefabricated on the slotted modular abutment (2).

2. The fabricated abutment structure for wharf engineering in accordance with claim 1, characterized in that the slotted modular abutment (2) comprises a berthing module (21) and a mooring module (22);

the notch (23) is positioned at the joint of the berthing module (21) and the mooring cable module (22);

the notch (23) consists of a ship-alongside module prefabricated notch (23a) and a mooring cable module prefabricated notch (23 b);

the notches (23) are uniformly distributed on the slotted modular abutments (2).

3. The fabricated abutment structure for wharf engineering according to claim 1, wherein the pile foundation (1) comprises a steel pipe pile (11) and a corrugated steel pipe (12);

the corrugated steel pipe (12) is welded on the pile top of the steel pipe pile (11).

4. The fabricated abutment structure for wharf engineering according to claim 3, wherein the diameter of the corrugated steel pipe (12) is equal to that of the steel pipe pile (11); the height of the corrugated steel pipe (12) is not less than the diameter of the steel pipe pile (11).

5. The assembled abutment structure for wharf engineering according to any one of claims 1 or 2, wherein the slotted modular abutments (2) are provided at the bottom with a number of pre-pile holes (24), the number of pre-pile holes (24) being the same as the number of pile foundations (1).

6. The assembled abutment structure for wharf engineering according to claim 5, wherein the diameter of the pre-pile hole (24) is larger than that of the pile foundation (1), and the depth of the pre-pile hole (24) is not smaller than the height of the corrugated steel pipe (12).

7. The fabricated abutment structure for wharf engineering of claim 1, wherein the ancillary facilities include rubber fenders and mooring bollards; the rubber fender is prefabricated and installed on the side surface of the ship leaning module (21); the bollards are prefabricated and mounted on mooring line modules (22).

8. The fabricated abutment structure for wharf engineering according to claim 1, characterized in that the shape and dimensions of the connecting steel frame (3) match the shape and dimensions of the notch (23) of the slotted modular abutment (2).

9. The assembled abutment structure for wharf engineering according to any one of claims 1 or 8, wherein the connecting steel frame (3) is a steel pipe combined steel frame, a section steel combined steel frame or a high-strength steel rod combined steel frame.

10. Use of a fabricated abutment structure for wharf engineering according to claims 1-9, characterised in that it comprises the following steps:

s1, preparing a pile foundation (1), and connecting the steel pipe pile (11) and the corrugated steel pipe (12) into a whole;

s2, sinking the pile by adopting a pile driving boat;

s3, prefabricating a ship-berthing module (21) and a mooring cable module (22), and synchronously installing auxiliary facilities in place at one time;

s4, hoisting the berthing module (21) and the mooring cable module (22) on the upper part of the pile foundation (1), and directly supporting the reserved pile hole (24) on the top surface of the pile foundation (1);

s5, connecting the pile foundation (1) with the berthing module (21) and the mooring cable module (22) to form a whole in a grouting mode, wherein the bottom formwork adopts a simple formwork hanging process;

s6, hoisting the connecting steel frame (3) into the notch (23);

and S7, grouting in the notch (23) to integrally connect the ship leaning module (21) and the mooring cable module (22) to form the grooved modular pier (2).

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