Reusable integral base plate

Abstract

The invention discloses a reusable integral base disc, the reusable integral base disc comprises a plurality of connecting rods and a plurality of guide cylinders, the plurality of guide cylinders are all inserted into seabed soil, the connecting rods are connected between the adjacent guide cylinders, the connecting rods are connected with suction cylinders, and the suction cylinders are hung and placed so that the suction cylinders can penetrate into the seabed soil; steel pipe piles are inserted into the ends, away from the seabed soil, of the guide cylinders so as to be inserted into the seabed soil along the guide cylinders; the suction barrel is separated from the seabed soil, and the guide barrel is removed along the steel pipe pile, so that the integral base disc is separated from the seabed soil. According to the reusable integral base plate, after the steel pipe pile is inserted into seabed soil, the integral base plate can be hoisted and recycled, and reutilization is achieved. The structure type is simple, the overall weight is small, the dependence on large tools and tools can be reduced, the consumption of steel is reduced, the economical efficiency is improved, and the purposes of reducing the manufacturing cost, the transportation and installation cost and the construction cost are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of offshore fixed foundation and floating foundation engineering, and in particular relates to a reusable integral base plate. Background Art

[0002] In marine engineering, construction projects are gradually expanding to deep seas. Whether it is a fixed foundation or a floating foundation, the foundation form used is required to meet the design and construction requirements. Generally, driven steel pipe piles are used as the foundation form. The steel pipe pile sinking construction in deep water areas generally requires a supporting pile stabilization platform.

[0003] The placement, debugging and folding of the pile stabilization platform all take a lot of time. Only after one steel pipe pile is sunk can the next one be driven in. However, when there are strict requirements on the sinking position of the steel pipe piles, it takes extra time to calibrate the plane coordinates, which prolongs the offshore construction time, increases the offshore construction costs, and leads to an increase in the overall cost.

[0004] Therefore, it is urgent to design a reusable integral base plate to solve the above-mentioned problem of steel pipe pile sinking construction. Summary of the invention

[0005] In order to solve the technical problem mentioned in the background technology that the steel pipe pile driving requires an extra long time to calibrate the plane coordinates, thereby extending the offshore construction time, increasing the offshore construction costs, and causing an increase in the overall cost, a reusable integral base is provided to solve the problem of steel pipe pile driving construction.

[0006] To achieve the above-mentioned purpose, the specific technical solution of the reusable integral base plate of the present invention is as follows: A reusable integral base plate comprises a plurality of connecting rods and a plurality of guide cylinders. The plurality of guide cylinders are all inserted into the seabed soil. Adjacent guide cylinders are all connected with connecting rods, and suction cylinders are connected to the connecting rods. The suction cylinders are suspended to penetrate the seabed soil; a steel pipe pile is inserted into the seabed soil at one end of the guide cylinder away from the seabed soil, so that the steel pipe pile is inserted into the seabed soil along the guide cylinder; the suction cylinder is separated from the seabed soil, and the guide cylinder is removed along the steel pipe pile to separate the integral base plate from the seabed soil.

[0007] Furthermore, connecting rods are connected between the multiple guide cylinders, and the three guide cylinders and the three connecting rods are connected to form an equilateral triangle with the guide cylinder as the vertex.

[0008] Furthermore, suction cylinders are vertically connected to the three connecting rods.

[0009] Further, the suction cylinder is welded at the center of the connecting rod.

[0010] Furthermore, a bell mouth is provided on the side of the guide tube away from the seabed soil, and the steel pipe pile is inserted into the guide tube along the bell mouth.

[0011] Furthermore, a lifting lug is connected to the side of the suction cylinder away from the seabed soil, and the integral base plate is suspended and placed through the lifting lug.

[0012] Furthermore, steel pipes are connected between the plurality of suction cylinders to stabilize the integral base plate structure.

[0013] Furthermore, the lifting lug is vertically welded above the suction cylinder.

[0014] Furthermore, an opening is provided at one end of the suction cylinder away from the lifting ear, and the end of the suction cylinder with the opening is in contact with the seabed soil. By extracting seawater inside the suction cylinder, the suction cylinder is slowly penetrated into the seabed soil.

[0015] Furthermore, after the three suction cylinders penetrate into the seabed soil, the upper surface levels of the three suction cylinders remain consistent.

[0016] The reusable integral base plate of the present invention has the following advantages: By designing the integral base plate into an equilateral triangle, the structure is stronger and more stable. The steel pipe piles enter the guide tube, which can reasonably transfer the load on the steel pipe piles and themselves to the suction tube through the connecting rod, and then transfer it to the lower soil. After the suction tube penetrates the soil, the friction between it and the soil can provide sufficient stable support for the entire structure and resist environmental loads. After the steel pipe piles are inserted into the seabed soil, the integral base plate can be hoisted and recovered for reuse. The structural type of this application is simple, the overall weight is not large, and it can reduce dependence on large-scale machinery and tools, reduce steel consumption, improve economy, and achieve the purpose of reducing production costs, transportation and installation costs, and construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the reusable integral base plate of the present invention; Figure 2 It is a top view of the reusable integral base plate of the present invention.

[0018] Description of the markings in the figure: 1. Connecting rod; 2. Guide cylinder; 3. Suction cylinder; 4. Bell mouth; 5. Lifting ear; 6. Steel pipe. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] Please refer to the attached Figure 1 To Attachment Figure 2 A reusable, one-piece base tray of the present invention is described.

[0022] like Figure 1 As shown, the reusable integral base plate in the present invention comprises a plurality of connecting rods 1 and a plurality of guide cylinders 2, wherein the plurality of guide cylinders 2 are all inserted into the seabed soil, and connecting rods 1 are connected between adjacent guide cylinders 2, and suction cylinders 3 are connected to the connecting rods 1, and the suction cylinders 3 are suspended to allow the suction cylinders 3 to penetrate the seabed soil; the end of the guide cylinder 2 away from the seabed soil is inserted into the steel pipe pile, so that the steel pipe pile is inserted into the seabed soil along the guide cylinder; the suction cylinder 3 is separated from the seabed soil, and the guide cylinder 2 is removed along the steel pipe pile, so that the integral base plate is separated from the seabed soil.

[0023] By designing the integral base plate into an equilateral triangle, the structure is stronger and more stable. The steel pipe pile enters the guide tube 2, and the load on the steel pipe pile and itself can be reasonably transferred to the suction tube 3 through the connecting rod, and then transferred to the lower soil. After the suction tube 3 penetrates the soil, the friction between it and the soil can provide sufficient stable support for the entire structure and resist environmental loads. After the steel pipe pile is inserted into the seabed soil, the integral base plate can be hoisted and recovered for reuse. The structural type of this application is simple, the overall weight is not large, and the dependence on large-scale machinery and tools can be reduced, the consumption of steel materials can be reduced, and the economy can be improved, so as to achieve the purpose of reducing production costs, transportation and installation costs, and construction costs.

[0024] Further, if Figure 1 As shown, a connecting rod 1 is connected between multiple guide cylinders 2, and with the guide cylinder 2 as the vertex, three guide cylinders 2 and three connecting rods 1 are connected to form a regular triangle; suction cylinders 3 are vertically connected to the three connecting rods 1; and the suction cylinder 3 is welded to the center of the connecting rod 1.

[0025] In this embodiment, preferably, connecting rods 1 are welded between the three guide cylinders 2 so that the whole is an equilateral triangle structure, and the three guide cylinders 2 are all vertices of the triangle structure; suction cylinders 3 are vertically welded on the three connecting rods 1, and the suction cylinders 3 are welded at the center position of the connecting rod 1.

[0026] Before starting the suction cylinder 3 sinking operation, the horizontality of the overall structure needs to be adjusted to meet the design and construction requirements; before carrying out the steel pipe pile sinking operation, the verticality of the steel pipe pile needs to be adjusted to meet the design and construction requirements.

[0027] As a preferred embodiment, four or five or more guide cylinders 2 are selected, connecting rods 1 are welded between the guide cylinders 2, and suction cylinders 3 are vertically welded at the center position of the connecting rods 1, so that the structure formed by connecting multiple guide cylinders, multiple connecting rods, and multiple suction cylinders is stable.

[0028] Further, if Figure 1 and Figure 2 As shown, a bell mouth 4 is provided on the side of the guide cylinder 2 away from the seabed soil, and the steel pipe pile is inserted into the guide cylinder 2 along the bell mouth 4; a lifting lug 5 is connected to the side of the suction cylinder 3 away from the seabed soil, and the integral base is suspended by the lifting lug 5; steel pipes 6 are connected between multiple suction cylinders 3 to stabilize the structure of the integral base.

[0029] In this embodiment, preferably, one end of the guide tube 2 is inserted into the seabed soil, and a bell mouth 4 is welded on the end of the guide tube 2 away from the seabed soil, so that the steel pipe pile can enter the guide tube 2 along the bell mouth 4, thereby realizing the pile sinking operation of the steel pipe pile.

[0030] One end of the suction cylinder 3 penetrates the seabed soil, and a lifting lug 5 is welded on the end of the suction cylinder 3 away from the seabed soil. The lowering and recovery of the integral base can be achieved by lifting the lifting lug 5. Preferably, multiple steel pipes 6 are welded between multiple suction cylinders 3 to make the overall rigidity of the integral base stronger.

[0031] The suction cylinder 3 is sunk to the designed depth and raised to be free from the soil. In both processes, the suction cylinder 3 must be kept in a relatively stable state so that the entire structure presents a stable posture to avoid deformation or even damage of the overall structure caused by asynchronous or even seriously uneven levels.

[0032] Further, if Figure 1 As shown, the lifting ear 5 is vertically welded above the suction cylinder 3; an opening is provided at one end of the suction cylinder 3 away from the lifting ear 5, and the end of the suction cylinder 3 with the opening is in contact with the seabed soil, and the seawater inside the suction cylinder 3 is extracted to make the suction cylinder 3 slowly penetrate into the seabed soil; after the three suction cylinders 3 penetrate into the seabed soil, the horizontal heights of the upper surfaces of the three suction cylinders 3 remain consistent.

[0033] In this embodiment, preferably, after the three suction cylinders 3 of the integral base plate penetrate into the seabed soil, it is necessary to ensure that the upper surface levels of the three suction cylinders 3 are consistent to avoid uneven pressure that causes cracks in the welding points of the integral base plate.

[0034] If the seabed surface soil is relatively soft, you may consider increasing the length of the suction tube; if the sea water is deep, you may consider increasing the height of the guide tube.

[0035] The suction cylinder 3 foundation structure is a large-diameter steel cylinder structure with an open bottom and a closed top. It has the advantages of convenient construction, fast construction speed, reusability and economical cost. It is increasingly used in deep-sea marine engineering.

[0036] The suction cylinder 3 sinks freely to the seabed, and the edge of the cylinder is inserted into the seabed soil by relying on its own gravity, forming a sealed space between the cylinder and the soil, and then the water in the cylinder is pumped out by an underwater submersible pump to form an internal and external pressure difference. When the force of the pressure difference acting on the cylinder body is greater than the resistance between the soil body and the cylinder body, the suction cylinder 3 slowly penetrates the soil body. When the top end of the suction cylinder 3 is completely in contact with the seabed soil body, the penetration stops, and then the submersible pump is closed and removed. At this point, the installation of the suction cylinder 3 is completed.

[0037] The working steps of the reusable integral base plate of this application are as follows: The entire structure is transported to the project site by a transport barge. After the entire structure is lifted by a hoist and slowly lowered to a preset position on the seabed, the suction cylinder 3 can be sunk to the designed depth. Then the steel pipe piles are slowly and vertically passed along the guide cylinder 2 to the surface soil, and the steel pipe pile sinking operation can be carried out. When the steel pipe pile sinking operation is completed, the suction cylinder 3 is slowly raised until it is free from the soil. Finally, the entire structure is slowly lifted from the water by a hoist and placed stably on the transport barge.

[0038] Based on the reusable integral base, the integral base is designed into an equilateral triangle, which is more structurally stronger and more stable. The steel pipe pile enters the guide cylinder, which can reasonably transfer the load on the steel pipe pile and itself to the suction cylinder 3 through the connecting rod 1, and then transfer it to the lower soil. After the suction cylinder 3 penetrates the soil, the friction between it and the soil can provide sufficient stable support for the entire structure and resist environmental loads. After the steel pipe pile is inserted into the seabed soil, the integral base can be hoisted and recovered for reuse. The structural type of this application is simple, the overall weight is not large, it can reduce the dependence on large-scale machinery and tools, reduce the consumption of steel, improve economy, and achieve the purpose of reducing production costs, transportation and installation costs, and construction costs.

[0039] 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 reusable integral base plate, characterized in that: The invention comprises a plurality of connecting rods and a plurality of guide cylinders, wherein the plurality of guide cylinders are all inserted into the seabed soil, connecting rods are connected between adjacent guide cylinders, and suction cylinders are connected to the connecting rods. The suction cylinders are suspended to penetrate the seabed soil; a steel pipe pile is inserted into the seabed soil at one end of the guide cylinder away from the seabed soil, so that the steel pipe pile is inserted into the seabed soil along the guide cylinder; the suction cylinder is separated from the seabed soil, and the guide cylinder is removed along the steel pipe pile to separate the integral base plate from the seabed soil.

2. The reusable integral base according to claim 1, characterized in that: Connecting rods are connected between the multiple guide cylinders, and three guide cylinders are connected with three connecting rods to form an equilateral triangle with the guide cylinder as the vertex.

3. The reusable integral base according to claim 2, characterized in that: The three connecting rods are vertically connected with suction cylinders.

4. The reusable integral base according to claim 3, characterized in that: The suction cylinder is welded to the center of the connecting rod.

5. The reusable integral base according to claim 1, characterized in that: A bell mouth is provided on the side of the guide tube away from the seabed soil, and the steel pipe pile is inserted into the guide tube along the bell mouth.

6. The reusable integral base according to claim 1, characterized in that: A lifting lug is connected to the side of the suction cylinder away from the seabed soil, and the integral base plate is suspended and placed through the lifting lug.

7. The reusable integral base according to claim 1, characterized in that: Steel pipes are connected between the multiple suction cylinders to stabilize the integral base plate structure.

8. The reusable integral base according to claim 6, characterized in that: The lifting lug is welded vertically on the top of the suction cylinder.

9. The reusable integral base according to claim 8, characterized in that: An opening is arranged at one end of the suction cylinder away from the lifting ear, and the end of the suction cylinder with the opening is in contact with the seabed soil. By pumping seawater inside the suction cylinder, the suction cylinder is slowly penetrated into the seabed soil.

10. The reusable integral base according to claim 9, characterized in that: After the three suction cylinders penetrate into the seabed soil, the upper surfaces of the three suction cylinders remain at the same level.

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