A permeable dock revetment structure and its construction method

Abstract

This invention belongs to the field of waterway engineering construction, and specifically relates to a permeable dock revetment structure and its construction method. The dock revetment structure comprises two parts: a permeable section and a steel pipe sheet pile composite revetment, wherein the permeable section is located between the dock pier and the steel pipe sheet pile composite revetment. The dock revetment structure and construction method of this invention have advantages such as high construction efficiency, low cost, and good structural stability, and are particularly suitable for new dock projects under earth cofferdam conditions, possessing broad application value.

Description

Technical Field

[0001] This invention belongs to the field of waterway engineering construction, and specifically relates to a permeable dock revetment structure and its construction method. Background Technology

[0002] With the rapid development of the shipbuilding industry and port construction, dock embankment structures, as crucial infrastructure for ship berthing, repair, and construction, are undergoing continuous advancements in design and construction technology. Traditional dock embankment structures primarily employ solid structures, which suffer from high construction difficulty, high cost, and poor structural flexibility. This is particularly true in new dock projects with earthen cofferdams, where higher demands are placed on the stability and construction efficiency of the embankment structure. While traditional solid structures offer good load-bearing capacity, their poor permeability can lead to water flow obstruction, siltation, and other environmental problems, affecting the normal use and maintenance of the dock. Furthermore, traditional structures have long construction cycles and high costs, making it difficult to meet the requirements of modern dock projects for efficiency, economy, and environmental protection. Summary of the Invention

[0003] To address the aforementioned problems, this invention proposes a permeable dock revetment structure and its construction method. The structure comprises two parts: a permeable section and a steel pipe sheet composite pile revetment. The permeable section consists of pile foundations, columns, horizontal and vertical beams, panels, and ancillary facilities, exhibiting permeability and structural stability. The steel pipe sheet composite pile revetment consists of steel pipe sheet composite piles, steel tie rods, breast walls, track beams, and ancillary facilities, possessing load-bearing capacity and deformation resistance. The design of the permeable section effectively improves the structure's permeability and reduces siltation, while the design of the steel pipe sheet composite pile revetment enhances the structure's load-bearing capacity and deformation resistance.

[0004] The technical solution adopted by the present invention to achieve the above objectives is: a permeable dock revetment structure, comprising a permeable section and a steel pipe sheet composite pile revetment; the permeable section is located between the dock pier and the steel pipe sheet composite pile revetment; The steel pipe and sheet pile composite revetment includes steel pipe piles, steel sheet piles, steel tie rods, track beams, cast-in-place breast walls, and track beam pile foundations. The steel pipe piles and steel sheet piles are driven in sequence and fixed by interlocking connections. The cast-in-place breast walls are connected above the steel pipe piles, and the track beams are connected to the cast-in-place breast walls. The track beam pile foundations are connected below the track beams, and the track beam pile foundations are anchored to the upper part of the steel pipe piles by steel tie rods. The open section includes crossbeams, longitudinal beams, columns, pile caps, pile foundations, bottom protection boulders, and panels. Multiple pile foundations are driven between the dock piers and the steel pipe sheet composite pile revetment. The upper end of each pile foundation is connected to a pile cap and a column. The pile foundations are connected to each other by bottom protection boulders. The upper end of each column is connected to a crossbeam, longitudinal beams, and panels.

[0005] The pile foundations, columns, beams, longitudinal beams, and panels are installed by prefabrication or cast-in-place methods. The ancillary facilities of the revetment structure include fenders, mooring bollards, wheel stops, winches, and rail installations to improve the functionality and safety of the revetment structure.

[0006] The steel pipe piles are driven 0.5m into the moderately weathered rock layer to form rock-socketed piles, ensuring bearing capacity and pile foundation stability.

[0007] A construction method for a permeable dock revetment structure includes the following steps: Step 1, Steel pipe sheet composite pile installation: Install steel pipe sheet composite piles at the predetermined locations, ensuring that the verticality and depth of the piles meet the design requirements; Step 2, steel pipe pile anchoring: The steel pipe piles are anchored and fixed using steel tie rods to enhance the overall stability of the structure; Step 3, excavation of the revetment: excavate the earthwork according to the design elevation to provide a working surface for subsequent construction; Step 4, construction of the open section: The pile foundation, pile cap, column, crossbeam, longitudinal beam and panel are constructed in sequence to ensure the structural integrity and functionality of the open section; Step 5, Construction of cast-in-place breast wall and track beam: Construct cast-in-place breast wall and track beam in the steel pipe sheet composite pile revetment section to ensure its load-bearing capacity and functionality; Step 6, Construction of ancillary facilities: Install ancillary facilities such as fenders, mooring bollards, wheel stops, winches and tracks to improve the functionality and safety of the revetment structure.

[0008] The steel pipe sheet composite piles are driven using a combination of vibratory hammer and impact hammer.

[0009] The specifications of the steel pipe sheet composite pile are φ1219mm+AZ18-700. Among them, 1219mm is the diameter of the steel pipe pile, and AZ18-700 is a commonly used Z-type steel sheet pile model.

[0010] The steel tie rod has a diameter of 95mm and a preload of 50~100kN.

[0011] The construction method described herein is applicable to newly constructed dock projects where the damming cofferdam is an earthen cofferdam.

[0012] The construction method for the open-type dock revetment structure of the present invention has the following advantages: 1. High construction efficiency: The use of steel sheet piles greatly shortens the construction period.

[0013] 2. Low cost: The use of open-cell structures and steel pipe sheet composite piles reduces material costs and simplifies construction processes.

[0014] 3. Good structural stability: The design of the open section and steel pipe sheet combined pile revetment gives the structure good load-bearing capacity and deformation resistance, which can meet the various load requirements during the use of the dock.

[0015] 4. Enhanced functionality: The installation of ancillary facilities enhances the functionality and safety of the revetment structure, improving its practicality and safety.

[0016] In summary, the construction method of this invention, through the use of combined vibratory hammer and impact hammer construction, prefabricated component assembly, or cast-in-place concrete construction techniques, ensures both high construction efficiency and structural integrity. Furthermore, the precise installation of auxiliary facilities further enhances the functionality and safety of the revetment structure. This method is applicable to newly constructed dock projects with earthen cofferdams for damming, offering advantages such as high construction efficiency, low cost, and good structural stability, effectively meeting the demands of modern dock projects for efficiency, economy, and environmental protection. Attached Figure Description

[0017] Figure 1 This is a schematic cross-sectional view of a permeable dock revetment structure; Figure 2 This is a schematic diagram of a permeable dock revetment structure; Figure 3 This is a schematic diagram of the connection of steel pipe sheet composite piles; Figure 4 This is a construction flowchart for a permeable dock revetment structure; In the diagram: 1. Steel pipe sheet pile composite revetment, 2. Open section, 3. Dock pier, 101. Steel pipe pile, 102. Steel sheet pile, 103. Steel tie rod, 104. Track beam, 105. Cast-in-place breast wall, 106. Track beam pile foundation, 201. Horizontal beam, 202. Longitudinal beam, 203. Column, 204. Pile cap, 205. Pile foundation, 206. Bottom protection riprap, 207. Panel. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings, but the present invention is not limited to the specific embodiments.

[0019] Example 1

[0020] like Figures 1-3 As shown, a permeable dock revetment structure includes two parts: a permeable section 2 and a steel pipe sheet composite pile revetment 1; the permeable section 2 is located between the dock pier 3 and the steel pipe sheet composite pile revetment 1. The steel pipe and sheet pile composite revetment 1 includes steel pipe piles 101, steel sheet piles 102, steel tie rods 103, track beams 104, cast-in-place breast walls 105, and track beam pile foundations 106. The steel pipe piles 101 and steel sheet piles 102 are driven in sequence and fixed by interlocking connections. The cast-in-place breast walls 105 are connected above the steel pipe piles 101. The track beams 104 are connected to the cast-in-place breast walls 105, and the track beam pile foundations 106 are connected to the bottom of the track beams 104. The track beam pile foundations 106 are anchored to the upper part of the steel pipe piles 101 by steel tie rods 103. The open section 2 includes a crossbeam 201, a longitudinal beam 202, a column 203, a pile cap 204, a pile foundation 205, a bottom protection block 206, and a panel 207. Multiple pile foundations 205 are driven between the dock pier 3 and the steel pipe sheet composite pile revetment 1. The upper end of each pile foundation 205 is connected to the pile cap 204 and the column 203. The pile foundations 205 are connected to each other by the bottom protection block 206. The upper end of each column 203 is connected to the crossbeam 201, the longitudinal beam 202, and the panel 207.

[0021] The pile foundation 205, column 203, crossbeam 201, longitudinal beam 202 and panel 207 are installed by prefabrication or cast-in-place methods. The auxiliary facilities of the revetment structure include fenders, mooring bollards, wheel stops, winches and rail installations, which are used to improve the functionality and safety of the revetment structure.

[0022] The steel pipe pile 101 is driven 0.5m into the moderately weathered rock layer to form a rock-socketed pile, so as to ensure bearing capacity and pile foundation stability.

[0023] Example 2

[0024] like Figure 4 As shown, the construction method of a permeable dock revetment structure according to Example 1 includes the following steps: Step 1: Installation of steel pipe sheet composite piles Steel sheet piles are driven at predetermined locations using a combination of vibratory hammers and impact hammers to ensure the verticality and depth of the piles meet design requirements. The specifications for the steel sheet piles are φ1219mm+AZ18-700, where 1219mm is the diameter of the steel sheet pile, and AZ18-700 is a commonly used Z-type steel sheet pile model. This is to meet the structural load-bearing requirements.

[0025] Step 2: Anchoring of steel pipe piles The steel pipe pile 101 is anchored and fixed using steel tie rods 103 with a diameter of 95mm and a preload of 50~100kN, thereby enhancing the overall stability of the structure. The preload of the steel tie rods 103 can be adjusted according to the actual situation to ensure the anchoring effect.

[0026] Step 3: Excavation of the revetment earthwork Earthwork excavation shall be carried out according to the design elevation to provide a working surface for subsequent construction. During the earthwork excavation process, the excavation depth and slope shall be strictly controlled to ensure construction safety and structural stability.

[0027] Step 4: Construction of the open section The installation of pile foundation 205, pile cap 204, column 203, horizontal beam 201, longitudinal beam 202, and panel 207 shall be carried out sequentially. Pile foundation 205, column 203, horizontal beam 201, longitudinal beam 202, and panel 207 can be assembled using precast components or constructed with cast-in-place concrete to ensure the integrity and durability of the structure. During installation, the dimensions and positions of the components should be strictly controlled to ensure the accuracy and functionality of the structure.

[0028] Step 5: Construction of breast wall and track beam Construction of the cast-in-place breast wall 105 and track beam 104 is carried out in the steel pipe sheet composite pile revetment section. The construction of the cast-in-place breast wall 105 and track beam 104 should meet the design requirements to ensure their load-bearing capacity and functionality.

[0029] Step 6: Construction of ancillary facilities Install ancillary facilities such as fenders, mooring bollards, wheel stops, winches, and rails. The installation of these ancillary facilities should be precise to meet the functional and safety requirements of the revetment structure.

[0030] This invention is not limited to the above-described embodiments. If any modifications or variations to this invention do not depart from the spirit and scope of this invention, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this invention, then this invention also intends to include such modifications and variations.

Claims

1. A permeable dock revetment structure, characterized in that, It consists of two parts: a permeable section and a steel pipe sheet composite pile revetment; the permeable section is located between the dock pier and the steel pipe sheet composite pile revetment. The steel pipe and sheet pile composite revetment includes steel pipe piles, steel sheet piles, steel tie rods, track beams, cast-in-place breast walls, and track beam pile foundations. The steel pipe piles and steel sheet piles are driven in sequence and fixed by interlocking connections. The cast-in-place breast walls are connected above the steel pipe piles, and the track beams are connected to the cast-in-place breast walls. The track beam pile foundations are connected below the track beams, and the track beam pile foundations are anchored to the upper part of the steel pipe piles by steel tie rods. The open section includes crossbeams, longitudinal beams, columns, pile caps, pile foundations, bottom protection boulders, and panels. Multiple pile foundations are driven between the dock piers and the steel pipe sheet composite pile revetment. The upper end of each pile foundation is connected to a pile cap and a column. The pile foundations are connected to each other by bottom protection boulders. The upper end of each column is connected to a crossbeam, longitudinal beams, and panels.

2. The open-type dock revetment structure according to claim 1, characterized in that, The pile foundations, columns, beams, longitudinal beams and panels are installed by prefabrication or cast-in-place methods. The ancillary facilities of the revetment structure include fenders, mooring bollards, wheel stops, winches and track installations.

3. The open-type dock revetment structure according to claim 1, characterized in that, The steel pipe piles are driven 0.5m into the moderately weathered rock layer to form rock-socketed piles.

4. The construction method of the open-type dock revetment structure according to any one of claims 1-3, characterized in that, Includes the following steps: Step 1, Steel pipe sheet composite pile installation: Install steel pipe sheet composite piles at the predetermined locations, ensuring that the verticality and depth of the piles meet the design requirements; Step 2, steel pipe pile anchoring: The steel pipe piles are anchored and fixed using steel tie rods to enhance the overall stability of the structure; Step 3, excavation of the revetment: excavate the earthwork according to the design elevation to provide a working surface for subsequent construction; Step 4, construction of the open section: The pile foundation, pile cap, column, crossbeam, longitudinal beam and panel are constructed in sequence to ensure the structural integrity and functionality of the open section; Step 5, Construction of cast-in-place breast wall and track beam: Construct cast-in-place breast wall and track beam in the steel pipe sheet composite pile revetment section to ensure its load-bearing capacity and functionality; Step 6, Construction of ancillary facilities: Install fenders, mooring bollards, wheel stops, winches and track ancillary facilities to improve the functionality and safety of the revetment structure.

5. The construction method of a permeable dock revetment structure according to claim 4, characterized in that, The steel pipe sheet composite piles are driven using a combination of vibratory hammer and impact hammer.

6. A construction method for a permeable dock revetment structure according to claim 4, characterized in that, In the steel pipe sheet composite pile, the diameter of the steel pipe pile is 1219mm, and the model of the steel sheet pile is AZ18-700.

7. The construction method of a permeable dock revetment structure according to claim 4, characterized in that, The steel tie rod has a diameter of 95mm and a preload of 50~100kN.

8. A construction method for a permeable dock revetment structure according to any one of claims 4 to 7, characterized in that, The construction method described herein is applicable to newly constructed dock projects where the damming cofferdam is an earthen cofferdam.

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