A suction caisson foundation

Abstract

The utility model relates to offshore foundation construction technical field discloses a kind of suction cylinder foundations, including cylinder, ballast, sealed cavity, inflation assembly, air extraction component and anchoring assembly.The utility model is set up inflation assembly, can make cylinder and ballast as a whole down to the relatively solid soil layer in seabed, the stability of ballast after being set up anchoring assembly can be improved, so that it can maintain stable state in the subsequent cylinder down process;Ballast is set, in the process of cylinder down, can effectively avoid the soil body in cylinder interior form soil plug, so that cylinder down to predetermined position smoothly;The cooperation of above-mentioned structure can significantly improve the bearing capacity of suction cylinder foundation.

Description

Technical Field

[0001] This utility model relates to the field of marine foundation construction technology, and in particular to a suction cylinder foundation. Background Technology

[0002] Suction cylinder foundations, as an excellent foundation type, have been widely used in industries such as deep-sea platforms, offshore floating structures, and offshore wind power. A key difference between suction cylinder foundations and traditional pile foundations is that they are installed into the seabed soil under negative pressure.

[0003] However, the installation process of suction cylinder foundations in the existing technology still has varying degrees of uncertainty. For example, when the pressure inside the cylinder is low, the soil will bulge and form a soil plug, which will hinder the downward penetration of the cylinder foundation and prevent it from being installed in place. This will have a serious adverse effect on the bearing capacity of the cylinder foundation. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide a suction cylinder base to solve the problems existing in the prior art.

[0005] The present invention adopts the following technical solution:

[0006] This utility model provides a suction cylinder base, including:

[0007] A cylindrical body, with a pressure carrier disposed below the cylindrical body. The top of the pressure carrier extends into the cylindrical body and abuts against its bottom. The interior of the cylindrical body is formed by the pressure carrier to create a sealed cavity, which is connected to an inflation assembly and an air extraction assembly.

[0008] An anchoring assembly is disposed within the pressure carrier, and its anchoring end can be unfolded or folded, and can extend to the outside of the pressure carrier.

[0009] Furthermore, the anchoring assembly includes a rotary drive component disposed within the pressure carrier. A vertically arranged worm is connected to the output shaft of the rotary drive component. Multiple worm wheels are meshed around the worm, and the worm wheels are rotatably connected to the mounting frame via a rotating shaft. An anchor rod is connected to the rotating shaft, and multiple anchor rods can simultaneously penetrate to the outside of the pressure carrier.

[0010] Furthermore, the side wall of the pressure carrier is provided with a plurality of elongated holes corresponding to the anchor rod, and the anchor rod passes through the corresponding elongated holes to the outside of the pressure carrier.

[0011] Furthermore, the anchoring assembly includes a linear drive component vertically arranged within the pressure carrier. A movable block is connected to the actuating end of the linear drive component. Adjusting rods are hinged to both sides of the movable block. Anchor rods are hinged to the ends of the two adjusting rods. The two anchor rods can simultaneously penetrate to the outside of the pressure carrier.

[0012] Furthermore, both adjusting rods and both anchor rods are arranged in a V-shape, and both anchor rods are slidably connected to the pressure carrier.

[0013] Furthermore, both sides of the pressure carrier are provided with through holes, and the two anchor rods slide through the corresponding through holes to the outside of the pressure carrier.

[0014] Furthermore, the bottom of the cylinder is provided with an inwardly extending flange, and the top of the pressure carrier extends into the cylinder through the inner side of the flange; the top of the pressure carrier is provided with an outwardly extending flange, the flange abuts against the flange, and a sealing element is provided between the two.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] This invention, through its inflatable component, enables the cylinder and pressure carrier to be lowered as a whole into a relatively firm soil layer on the seabed. The anchoring component enhances the stability of the pressure carrier after penetration, ensuring its stability during the subsequent cylinder descent. The pressure carrier effectively prevents soil blockage inside the cylinder during descent, allowing it to smoothly reach its predetermined position. The combined use of these structures significantly improves the bearing capacity of the suction cylinder foundation. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a first state diagram of the suction cylinder base according to Embodiment 1 of this utility model;

[0019] Figure 2 This is a second state diagram of the suction cylinder base according to Embodiment 1 of this utility model;

[0020] Figure 3 This is a first state diagram of the suction cylinder base in Embodiment 2 of this utility model;

[0021] Figure 4 This is a second state diagram of the suction cylinder base in Embodiment 2 of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Cylinder; 101. Folded edge; 2. Pressure carrier; 201. Flange; 3. Sealing cavity; 4. Inflation assembly; 41. Inflation hose; 5. Air extraction assembly; 51. Air extraction hose; 6. Anchoring assembly; 61. Rotary drive component; 62. Worm gear; 63. Worm wheel; 64. Mounting bracket; 65. Anchor bolt one; 66. Linear drive component; 67. Movable block; 68. Adjusting rod; 69. Anchor bolt two. Detailed Implementation

[0023] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] Example 1

[0025] like Figures 1-2 As shown in the figure, this embodiment discloses a suction cylinder base, including a cylinder body 1. A pressure carrier 2 is provided below the cylinder body 1. The top of the pressure carrier 2 extends into the cylinder body 1 and abuts against its bottom. The interior of the cylinder body 1 forms a sealed cavity 3 through the pressure carrier 2. The sealed cavity 3 is connected to an inflation component 4 and an air extraction component 5. An anchoring component 6 is provided inside the pressure carrier 2. The anchoring end of the anchoring component 6 can be unfolded or folded and can penetrate to the outside of the pressure carrier 2.

[0026] In this first embodiment, the bottom of the pressure carrier 2 is set as a pointed end. The inflation assembly 4 is used to fill the sealed cavity 3 with gas, and the vacuum assembly 5 is used to evacuate the sealed cavity 3. The inflation assembly 4 includes an inflation pump and an inflation hose 41. The inflation pump is connected to one side of the top of the sealed cavity 3 through the inflation hose 41, and an inflation valve is installed on the inflation hose 41. The vacuum assembly 5 includes a vacuum pump and a vacuum hose 51. The vacuum pump is connected to the other side of the top of the sealed cavity 3 through the vacuum hose 51, and a vacuum valve is installed on the vacuum hose 51. The inflation pump, vacuum pump, inflation valve, and vacuum valve are all set on a work platform above the sea surface.

[0027] During installation, gas is first introduced into the sealed cavity 3 through the inflation component 4, so that the cylinder 1 and the pressure carrier 2 are lowered together as a whole. During the lowering process, the pressure carrier 2 can penetrate into the seabed soil layer to a certain depth. Since this part of the soil layer is relatively soft, it needs to continue to penetrate. At this time, gas is continued to be introduced into the sealed cavity 3, so as to continuously increase the overall weight, thus enabling the pressure carrier 2 to penetrate into a relatively hard soil layer.

[0028] After the pressure carrier 2 penetrates to the predetermined position, the anchoring component 6 is controlled and its anchoring end is unfolded. After the anchoring end penetrates to the outside of the pressure carrier 2, it is anchored into the soil around the pressure carrier 2, thereby improving the stability of the pressure carrier 2.

[0029] Afterwards, the gas in the sealed cavity 3 is evacuated by the air extraction component 5, and a negative pressure is generated in the sealed cavity 3. Under the action of the negative pressure, since the pressure carrier 2 has been firmly constrained, the cylinder 1 will continue to descend until the inner top wall of the cylinder 1 is tightly pressed against the top surface of the pressure carrier 2, and then the installation of the suction cylinder foundation is completed.

[0030] By adopting this scheme, the present invention, through the inflatable component 4, enables the cylinder 1 and the pressure carrier 2 to be lowered as a whole into a relatively solid soil layer on the seabed. The anchoring component 6 improves the stability of the pressure carrier 2 after penetration, allowing it to maintain a stable state during the subsequent lowering of the cylinder 1. The pressure carrier 2 effectively prevents soil from forming a soil plug inside the cylinder 1 during its lowering process, allowing the cylinder 1 to be lowered smoothly to the predetermined position. Through the combined use of the above structures, the bearing capacity of the suction cylinder foundation can be significantly improved.

[0031] In a further optimized design, the anchoring assembly 6 includes a rotary drive component 61 disposed within the pressure carrier 2. A vertically arranged worm gear 62 is connected to the output shaft of the rotary drive component 61. Multiple worm wheels 63 are meshed around the worm gear 62. The worm wheels 63 are rotatably connected to the mounting frame 64 via a rotating shaft. Anchor rods 65 are connected to the rotating shaft, and multiple anchor rods 65 can simultaneously penetrate to the outside of the pressure carrier 2.

[0032] In this first embodiment, the rotary drive component 61 is a motor, which can be remotely controlled via remote control. The motor housing is fixed to the bottom wall inside the pressure carrier 2, and the motor output axis extends upward and is coaxially and fixedly connected to the end of the worm 62. Multiple worm wheels 63 are evenly arranged around the worm 62. The number of worm wheels 63 can be two, three, four or more. In this first embodiment, there are two worm wheels 63, which are arranged on both sides of the worm 62. Each worm wheel 63 is fixedly sleeved on a rotating shaft, and the rotating shaft is rotatably connected to a corresponding mounting bracket 64. The mounting bracket 64 is fixed to the motor housing or to the inner wall of the pressure carrier 2. Two anchor rods 65 are arranged in a V-shape, and the bottom of the anchor rods 65 is fixedly connected to the corresponding rotating shafts.

[0033] When the motor drives the worm 62 to rotate, the worm 62 drives the two worm wheels 63 and the corresponding shaft to rotate synchronously in opposite directions. Through the rotation of the shaft, the two anchor rods 65 can be driven to move away from each other or closer to each other, thus realizing the unfolding or folding of the two anchor rods 65.

[0034] To further optimize the design, the side wall of the pressure carrier 2 is provided with multiple elongated holes that correspond to the anchor rod 65, and the anchor rod 65 passes through the corresponding elongated holes to the outside of the pressure carrier 2.

[0035] In this first embodiment, the elongated hole is narrow and elongated, which allows the anchor rod 65 to pass through from the inside of the pressure carrier 2 to the outside, so that the anchor rod 65 can be inserted into the soil outside the pressure carrier 2.

[0036] In a further optimized design, the bottom of the cylinder 1 is fixed with an inwardly extending flange 101, and the top of the pressure carrier 2 extends into the cylinder 1 through the inner side of the flange 101; the top of the pressure carrier 2 is fixed with an outwardly extending flange 201, which abuts against the flange 101, and a sealing element is provided between the two.

[0037] In this first embodiment, the cylinder 1 is a cylindrical body, and the flange 101 is arranged circumferentially along the bottom of the cylinder 1; the cross-section of the middle and top of the pressure carrier 2 is circular, and the outer wall of its top is in contact with the inner wall of the flange 101; the flange 201 is arranged circumferentially along the top of the pressure carrier 2; the sealing element can be a sealing gasket, which is fixed on the top surface of the flange 101 or the bottom surface of the flange 201; through the above structure, a sealing cavity 3 can be formed inside the cylinder 1.

[0038] Example 2

[0039] like Figures 3-4 As shown, based on the above embodiment one, the difference between this embodiment two and the above embodiment one is that: this embodiment two provides another structure for the anchoring component 6. The anchoring component 6 includes a linear drive component 66 arranged vertically in the pressure carrier 2. A movable block 67 is connected to the actuating end of the linear drive component 66. Adjusting rods 68 are hinged to both sides of the movable block 67. Anchor rods 69 are hinged to the ends of the two adjusting rods 68. The two anchor rods 69 can be simultaneously penetrated to the outside of the pressure carrier 2.

[0040] In this second embodiment, the linear drive component 66 can be configured as an electric push rod or an electric cylinder, which can be remotely controlled by a remote control; a connecting plate is fixed inside the pressure carrier 2, the fixed end of the linear drive component 66 is fixed to the bottom surface of the connecting plate, and the moving end of the linear drive component 66 extends downward and is fixedly connected to the movable block 67.

[0041] Using this scheme, by controlling the linear drive component 66 and shortening or extending its moving end, the movable block 67 can be driven to move vertically. Under the action of the adjusting rod 68, the corresponding anchor rod can be driven to penetrate to the outside of the pressure carrier 2, and then anchored into the soil outside the pressure carrier 2.

[0042] In a further optimized design, the two adjusting rods 68 and the two anchor rods 69 are arranged in a V-shape, and the two anchor rods 69 are slidably connected to the pressure carrier 2.

[0043] In this embodiment, when the movable block 67 moves upward, the second anchor rod 69 will move outward from inside the pressure carrier 2 under the action of the adjusting rod 68.

[0044] Specifically, through holes are provided on both sides of the pressure carrier 2, and two anchor rods 69 slide through the corresponding through holes to the outside of the pressure carrier 2; the size of the through holes is adapted to the anchor rods 69.

[0045] Compared with the first embodiment, the advantages of this second embodiment are: in this second embodiment, the anchor rod 69 fits into the inner wall of the through hole, which can effectively block mud and water during the lowering of the pressure carrier 2; at the same time, the anchor rod 69 in this second embodiment is easier to anchor into the soil.

[0046] Furthermore, it should be noted that the suction cylinder foundation of this utility model can penetrate below the surface of the seabed soil layer, and after installation, the soil can cover the top of the cylinder 1, which can effectively reduce the adverse effects of seawater erosion on the bearing capacity of the suction cylinder foundation.

[0047] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A suction cylinder foundation, characterized in that: include: A cylindrical body (1) is provided with a pressure carrier (2) at the bottom of the cylindrical body (1). The top of the pressure carrier (2) extends into the cylindrical body (1) and abuts against its bottom. The interior of the cylindrical body (1) is formed by the pressure carrier (2) to form a sealed cavity (3). The sealed cavity (3) is connected to an inflation assembly (4) and an air extraction assembly (5). An anchoring component (6) is disposed within the pressure carrier (2), and its anchoring end can be unfolded or folded, and can penetrate to the outside of the pressure carrier (2).

2. The suction cylinder foundation according to claim 1, characterized in that: The anchoring assembly (6) includes a rotary drive component (61) disposed within the pressure carrier (2). A vertically arranged worm (62) is connected to the output shaft of the rotary drive component (61). Multiple worm wheels (63) are meshed around the worm (62). The worm wheels (63) are rotatably connected to the mounting frame (64) via a rotating shaft. An anchor rod (65) is connected to the rotating shaft. Multiple anchor rods (65) can simultaneously penetrate to the outside of the pressure carrier (2).

3. The suction cylinder foundation according to claim 2, characterized in that: The pressure carrier (2) has a plurality of elongated holes on its side wall that correspond to the anchor rod (65) respectively, and the anchor rod (65) passes through the corresponding elongated holes to the outside of the pressure carrier (2).

4. The suction cylinder foundation according to claim 1, characterized in that: The anchoring assembly (6) includes a linear drive component (66) arranged vertically within the pressure carrier (2). A movable block (67) is connected to the actuating end of the linear drive component (66). Adjusting rods (68) are hinged to both sides of the movable block (67). Anchor rods (69) are hinged to the ends of the two adjusting rods (68). The two anchor rods (69) can simultaneously penetrate to the outside of the pressure carrier (2).

5. The suction cylinder foundation according to claim 4, characterized in that: The two adjusting rods (68) and the two anchor rods (69) are arranged in a V-shape, and the two anchor rods (69) are slidably connected to the pressure carrier (2).

6. The suction cylinder foundation according to claim 5, characterized in that: Both sides of the pressure carrier (2) are provided with through holes, and the two anchor rods (69) slide through the corresponding through holes to the outside of the pressure carrier (2).

7. The suction cylinder foundation according to claim 1, characterized in that: The bottom of the cylinder (1) is provided with an inwardly extending flange (101), and the top of the pressure carrier (2) extends into the cylinder (1) through the inside of the flange (101); the top of the pressure carrier (2) is provided with an outwardly extending flange (201), the flange (201) abuts against the flange (101), and a sealing element is provided between the two.

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