Trestle structure of underwater anti-sinking plate foundation of subsea pipeline

Abstract

The embodiment of the invention provides a trestle structure of an underwater anti-sinking plate foundation for a subsea pipeline, which comprises a trestle mechanism, penetration structures are arranged at two ends of the trestle mechanism, each penetration structure comprises an anti-sinking plate and an apron board arranged at the bottom of the anti-sinking plate, a stand column is arranged on the anti-sinking plate, and the stand column is respectively connected to the anti-sinking plate and the trestle mechanism. By means of the trestle structure, pipelines can be fully protected, closed protection and open supporting exist, various selections can be conveniently conducted by workers, the trestle structure has the advantages of being short in construction period, low in construction difficulty, wide in application range and the like, and in addition, by adjusting the penetration depth of the apron board, the trestle structure is suitable for various geological units and covering geological types such as sludge, clay, silt and sandy soil.

Description

Technical Field

[0001] The invention belongs to the technical field of marine engineering, and in particular relates to a trestle structure for solving the underwater anti-sinking plate foundation of a submarine pipeline. Background Art

[0002] When the submarine pipeline encounters uneven seabed topography or obstacles such as pipelines in previous projects during route layout, it is generally necessary to avoid the corresponding obstacles, resulting in the pipeline route layout not being able to achieve the optimal layout, affecting the difficulty of route selection and the economic efficiency of project investment. In addition, in the prior art, in the field of oil extraction, it is often encountered to exploit offshore oil fields. The exploitation of offshore oil fields requires the construction of artificial islands and sea access roads connecting the artificial islands and land at sea. Construction personnel enter the artificial islands through the sea access roads and conduct oil field exploitation on the artificial islands. For the sea access road, it is currently achieved by building a trestle. However, when building a trestle, due to the high required height, and in order to ensure the stability of the structure, the diameter of the pile foundation is also relatively large, and the construction difficulty of the trestle on a soft soil foundation with poor foundation stability is relatively large.

[0003] Therefore, it is urgent to design a trestle structure that can solve the underwater anti-sinking plate foundation of the submarine pipeline to solve the above-mentioned problems. Summary of the invention

[0004] In order to solve the technical problems of great construction difficulty and high construction cost mentioned in the background technology, a pier structure for solving the underwater anti-sinking plate foundation of submarine pipelines is provided to solve the above problems.

[0005] To achieve the above purpose, the specific technical solution of the trestle structure of the underwater anti-sinking plate foundation of the submarine pipeline of the present invention is as follows: A trestle structure for solving the underwater anti-sinking plate foundation of a submarine pipeline comprises a trestle mechanism. Both ends of the trestle mechanism are provided with penetration structures. The penetration structure comprises an anti-sinking plate and a skirt plate arranged at the bottom of the anti-sinking plate. Vertical columns are arranged on the anti-sinking plate, and the vertical columns are respectively connected to the anti-sinking plate and the trestle mechanism.

[0006] Furthermore, at least two columns are provided.

[0007] Furthermore, a cross beam is arranged on the anti-sinking plate, the cross beam is located at the end surface of the anti-sinking plate, and the bottom ends of at least two columns are inserted into the cross beam.

[0008] Furthermore, the anti-sinking plate is in the shape of a quadrilateral, and the skirt plate is arranged on the peripheral side of the anti-sinking plate and is perpendicular to the anti-sinking plate.

[0009] Further, in the vertical direction, the trestle mechanism is located above the penetration structure.

[0010] Furthermore, the trestle mechanism comprises an accommodating channel, which runs through both sides of the trestle mechanism as a whole and is used to accommodate pipelines.

[0011] Furthermore, the trestle mechanism includes at least three main beams, and adjacent main beams are connected by auxiliary beams to enclose a accommodating channel.

[0012] Furthermore, a plurality of auxiliary beams are provided, and the auxiliary beams are arranged at an angle to the main beam.

[0013] Furthermore, the trestle mechanism also includes a support beam, which extends horizontally and protrudes from the main beam frame, and the pipelines not arranged in the accommodating channel can be overlapped on the protruding end of the support beam.

[0014] Furthermore, an anti-dropout member is provided at the protruding end of the support beam, and the pipeline not arranged in the accommodating channel is arranged between the anti-dropout member and the support beam.

[0015] The trestle structure for solving the underwater anti-sinking plate foundation of the submarine pipeline of the present invention has the following advantages: the pipeline can be fully protected by the trestle structure, there are closed protection and open support, which is convenient for the staff to make multiple choices, and there are also advantages such as short construction period, low construction difficulty, and wide application range. In addition, by adjusting the penetration depth of the skirt plate, it is suitable for various geological units, covering geological types such as silt, clay, silt and sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the trestle structure for solving the underwater anti-sinking plate foundation of the submarine pipeline of the present invention; Figure 2 A top view of the penetration structure of the present invention; Figure 3 A top cross-sectional view of a trestle structure for solving the underwater anti-sinking plate foundation of a submarine pipeline according to the present invention; Figure 4 A side sectional view of a trestle structure for solving the problem of underwater anti-sinking plate foundation for submarine pipelines according to the present invention; Figure 5 It is a structural schematic diagram of the trestle mechanism of the present invention; Figure 6 It is a side view of the trestle mechanism and penetration structure of the present invention.

[0017] Description of the markings in the figure: 1. Trestle mechanism; 11. Main beam; 12. Secondary beam; 13. Support beam; 14. Anti-slip parts; 2. penetration structure; 21. anti-sinking plate; 211. crossbeam; 212. supporting ribs; 22. skirt board; 23. column; 100. Accommodation channel. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0019] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0020] Please refer to the attached Figure 1 To Attachment Figure 6 The invention describes a trestle structure for solving the problem of underwater anti-sinking plate foundation of submarine pipelines.

[0021] This embodiment provides a trestle structure for solving the problem of underwater anti-sinking plate foundation of submarine pipelines, such as Figure 1 As shown, it includes a trestle mechanism 1, and penetration structures 2 are arranged at both ends of the trestle mechanism 1. The penetration structure 2 includes an anti-sinking plate 21 and a skirt plate 22 arranged at the bottom of the anti-sinking plate 21. The anti-sinking plate 21 is provided with a column 23, and the column 23 is respectively connected to the anti-sinking plate 21 and the trestle mechanism 1. The trestle structure can fully protect the pipeline, and there are closed protection and open support, which is convenient for the staff to make multiple choices. It also has the advantages of short construction period, low construction difficulty, wide application range, etc. In addition, by adjusting the penetration depth of the skirt plate 22, it is suitable for a variety of geological units, covering geological types such as silt, clay, silt and sand.

[0022] It should be noted that the skirt board 22 can be matched according to the actual soil data of the project, including but not limited to the thickness of the skirt board 22, the penetration depth of the skirt board 22, the reinforcement ribs of the skirt board 22, etc.; the skirt board 22 is arranged at the bottom of the peripheral frame of the anti-sinking plate 21. If the size of the anti-sinking plate 21 is limited, the skirt board 22 can be arranged inside the frame of the anti-sinking plate 21 to improve the bearing capacity and stability of the overall frame.

[0023] Furthermore, if Figure 2 As shown, at least two columns 23 are provided. In this embodiment, the columns 23 are provided in two groups, each group is provided with three columns, and are symmetrically arranged along the axis of the anti-sinking plate 21.

[0024] Furthermore, a crossbeam 211 is provided on the anti-sinking plate 21 . The crossbeam 211 is located at an end surface of the anti-sinking plate 21 , and bottom ends of at least two columns 23 are inserted into the crossbeam 211 .

[0025] Furthermore, the anti-sinking plate 21 is in a quadrilateral shape, and the skirt plate 22 is disposed on the peripheral side of the anti-sinking plate 21 and is perpendicular to the anti-sinking plate 21 .

[0026] Alternatively, if Figure 2 As shown, the shape of the anti-sinking plate 21 is set to be rectangular.

[0027] It should be noted that the anti-sinking plate 21 can be designed to match the actual soil data and landform height of the project. Steel sections are set at equal intervals along the length direction, and channel steels aligned with the bottom of the steel sections are set along the width direction to provide support for the skirt plate 22; steel sections are set along the width direction at the vertical support position and steel plates are set at the bottom to form an overall frame structure to improve the overall strength and bearing capacity of the anti-sinking plate 21; the anti-sinking plate 21 can be turned or its overall shape can be changed according to the actual surrounding obstacles to meet the requirements of the overall structure installation; the bottom plate of the anti-sinking plate 21 needs to be provided with openings to reduce the overall structure from being lowered.

[0028] Furthermore, a plurality of support ribs 212 are provided on the anti-sinking plate 21 . The support ribs 212 are connected to two sides of the side frame of the anti-sinking plate 21 to improve the strength of the anti-sinking plate 21 .

[0029] It should be noted that the anti-sinking plate 21 can be designed and matched according to the actual soil data and landform height of the project, including the size of the anti-sinking plate 21, pipe diameter and other parameters; the setting of the anti-sinking plate 21 can effectively save occupied space and provide a more flexible layout plan for pipeline route planning; the anti-sinking plate 21 can provide reliable support for the construction of the steel pile structure, which is convenient for construction; the anti-sinking plates 21 can be connected by grouting or by constraining through gap plates and other methods, which can be selected based on the comprehensive engineering costs.

[0030] Specifically, Figure 1-Figure 3 As shown, the shape of the anti-sinking plate 21 is set to be a rectangle, and a plurality of support ribs 212 are arranged in parallel and spaced along the long side of the rectangle, and their two ends are respectively connected to the short sides of the rectangular anti-sinking plate 21, or a plurality of support ribs 212 are arranged in parallel and spaced along the short side, and their two ends are respectively connected to the long sides of the rectangular anti-sinking plate 21, thereby improving the overall strength of the anti-sinking plate 21. In addition, the shape of the anti-sinking plate 21 can also be a triangle, a rhombus, etc., which is not specifically limited here.

[0031] Optionally, when multiple support ribs 212 are arranged in parallel and spaced apart along the long sides of the rectangle, and both ends of the support ribs 212 are respectively connected to the short sides of the rectangular anti-sinking plate 21, an additional support rib 212 is arranged in parallel along the short sides of the rectangle, and penetrates the above multiple support ribs 212, so as to further improve the strength of the anti-sinking plate 21. It should be noted that the above arrangement is only for the purpose of setting the additional support rib 212 to intersect with other support ribs 212, so as to achieve the purpose of improving the strength of the anti-sinking plate 21. If the position of the support rib 212 conflicts with the position of the column 23, the support rib 212 can be divided into several parts, or the position of the support rib 212 can be moved, so as to avoid the column 23.

[0032] Furthermore, if Figure 1 and Figure 4 As shown, in the vertical direction, the trestle mechanism 1 is located above the penetration structure 2 .

[0033] Furthermore, if Figure 5 and Figure 6 As shown, the trestle mechanism 1 includes an accommodating channel 100, which runs through both sides of the trestle mechanism 1 as a whole and is used to accommodate pipelines.

[0034] Furthermore, the trestle mechanism 1 includes at least three main beams 11 , and adjacent main beams 11 are connected via secondary beams 12 to enclose a receiving passage 100 .

[0035] Optionally, at least two main beams 11 are connected to the columns 23 .

[0036] Furthermore, a plurality of auxiliary beams 12 are provided, and the auxiliary beams 12 are provided at an angle to the main beam 11 .

[0037] Furthermore, if Figure 6 As shown, the trestle mechanism 1 further includes a support beam 13 , which extends horizontally and protrudes from the main beam 11 frame. Pipelines not arranged in the accommodating channel 100 can be overlapped at the protruding end of the support beam 13 .

[0038] It should be noted that the trestle mechanism 1 can be designed to match the actual span of the project, including but not limited to the size specifications and cross-sectional dimensions of the support beam 13, and the hoisting of the entire structure can be achieved by connecting with the support beam 13.

[0039] Furthermore, the extended end of the support beam 13 is provided with an anti-dropout member 14, and the pipeline not arranged in the accommodating channel 100 is arranged between the anti-dropout member 14 and the support beam 13. The above-mentioned trestle structure realizes closed protection and open support of the pipeline by arranging the accommodating channel 100 and the anti-dropout member 14, which is convenient for the staff to make multiple choices.

[0040] It should be noted that the support beam 13 and the anti-slip member 14 can be designed according to the specific pipeline data of the actual operation project, including but not limited to the size, spacing, rod specifications, etc. of the supporting structure; the support beam 13 and the anti-slip member 14 can provide support for the constraint structure to limit the displacement of the pipeline; the support beam 13 and the anti-slip member 14 can also be directly connected to the lifting rope for use in structural lifting.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A trestle structure for solving the underwater anti-sinking plate foundation of submarine pipelines, characterized in that: It includes a trestle mechanism, both ends of which are provided with penetration structures, the penetration structures include an anti-sinking plate and a skirt plate arranged at the bottom of the anti-sinking plate, the anti-sinking plate is provided with columns, and the columns are respectively connected to the anti-sinking plate and the trestle mechanism.

2. The trestle structure for solving the underwater anti-sinking plate foundation of submarine pipelines according to claim 1 is characterized in that: At least two columns are provided.

3. The trestle structure for solving the underwater anti-sinking plate foundation of the submarine pipeline according to claim 2 is characterized in that: A crossbeam is arranged on the anti-sinking plate, the crossbeam is located at the end surface of the anti-sinking plate, and the bottom ends of at least two columns are inserted into the crossbeam.

4. The pier structure for solving the underwater anti-sinking plate foundation of submarine pipelines according to claim 1 is characterized in that: The anti-sinking plate is in the shape of a quadrilateral, and the skirt plate is arranged on the peripheral side of the anti-sinking plate and is perpendicular to the anti-sinking plate.

5. The pier structure for solving the underwater anti-sinking plate foundation of submarine pipelines according to claim 1 is characterized in that: In the vertical direction, the trestle mechanism is located above the penetration structure.

6. The pier structure for solving the underwater anti-sinking plate foundation of submarine pipelines according to claim 1 is characterized in that: The trestle mechanism comprises an accommodating channel, which runs through both sides of the trestle mechanism as a whole and is used for accommodating pipelines.

7. The trestle structure for solving the underwater anti-sinking plate foundation of the submarine pipeline according to claim 6 is characterized in that: The trestle bridge mechanism comprises at least three main beams, and adjacent main beams are connected by auxiliary beams to enclose a receiving passage.

8. The trestle structure for solving the underwater anti-sinking plate foundation of submarine pipelines according to claim 7 is characterized in that: A plurality of auxiliary beams are provided, and the auxiliary beams are arranged at an angle with the main beam.

9. The trestle structure for solving the underwater anti-sinking plate foundation of submarine pipelines according to claim 7 is characterized in that: The trestle mechanism also includes a support beam, which extends horizontally and protrudes from the main beam frame. The pipelines not arranged in the accommodating channel can be overlapped on the protruding end of the support beam.

10. The trestle structure for solving the underwater anti-sinking plate foundation of submarine pipelines according to claim 9 is characterized in that: The protruding end of the support beam is provided with an anti-slip piece, and the pipeline not arranged in the accommodating channel is arranged between the anti-slip piece and the support beam.

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