Auxiliary support for geological exploration, geological exploration platform and geological exploration equipment

Abstract

The present invention relates to the field of marine exploration technology, and in particular to a geological exploration auxiliary bracket, a geological exploration platform and a geological exploration device. The geological exploration auxiliary bracket provided by the present invention comprises: a bearing platform provided with a connection portion suitable for hoisting, and a through hole is opened inside the bearing platform; a guide assembly, which is arranged on the bearing platform and is suitable for straightening the geological exploration equipment passing through the through hole of the bearing platform; at least two suction cylinders, the suction cylinder comprising a cylinder body and a cylinder cover located at the top of the cylinder body, the suction cylinder is arranged at the bottom of the bearing platform, and a water pipe with a switch valve is arranged on the suction cylinder, and the water pipe is connected to the drainage and injection system, and the different suction cylinders are independently controlled by the drainage and injection system. The geological exploration auxiliary bracket provided by the present invention can straighten the geological exploration equipment passing through the through hole of the bearing platform, perform verticality correction on the probe rod, and improve the accuracy of geological exploration data.

Description

Technical Field

[0001] The present invention relates to the technical field of ocean exploration, and in particular to a geological exploration auxiliary bracket, a geological exploration platform and a geological exploration device. Background Art

[0002] In order to adapt to the development of offshore wind farms and offshore engineering, offshore self-elevating exploration platforms have been developed at home and abroad in recent years. The exploration equipment can be directly set up on the deck of the self-elevating platform, and the probe rod can be penetrated into the seabed through the moon pool on the platform, which increases the convenience and efficiency of the use of the exploration equipment. At the same time, the self-elevating platform also provides sufficient reaction force for the exploration equipment. At present, the self-elevating exploration platform can be used in waters with a depth of 10m to 60m. Since the exploration equipment is located on the platform deck, the following problems may occur during use:

[0003] When the probe rod is lowered from the platform to the seabed through the platform moon pool, the probe rod is in a freely lowered state and often tilts due to factors such as uneven connection parts. Even if the inclination rate of the probe rod on the platform surface meets the standard requirement of no more than 2%, when the probe rod contacts the seabed, its initial burial direction will deviate significantly, resulting in inaccurate exploration data.

[0004] In addition, affected by ocean waves, tides and other factors, the probe rod will be tilted due to the wave force during the lowering process, causing deviations in the test data. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the probe rod is difficult to maintain a vertical state when inserted into the soil, resulting in inaccurate test data, thereby providing a geological exploration auxiliary bracket, a geological exploration platform and a geological exploration device.

[0006] The geological exploration auxiliary support provided by the present invention comprises:

[0007] The bearing platform is provided with a connection portion suitable for hoisting, and a through hole is opened inside the bearing platform;

[0008] A guide assembly, disposed on the bearing platform, adapted to straighten the geological survey equipment passing through the through hole of the bearing platform;

[0009] At least two suction cylinders, each of which comprises a cylinder body and a cylinder cover located at the top of the cylinder body, and each of which is arranged at the bottom of the supporting platform, and each of which is provided with a water pipe with a switch valve, and each of which is connected to a drainage and injection water system, and each of which is independently controlled by the drainage and injection water system.

[0010] Preferably, the ratio of the height to the diameter of the suction cylinder is less than or equal to 1.

[0011] Preferably, the supporting platform comprises a square bottom plate, and the number of the suction cylinders is 4, which are respectively arranged at the diagonals of the supporting platform.

[0012] Preferably, the guide assembly includes: a linear motor, a cylinder, a push rod, and a chuck. The two linear motors are arranged in parallel and distributed on both sides of the through hole of the support platform. The cylinders are fixedly installed on the movers of the two linear motors. The push rod is connected to the piston of the cylinder and extends outward from the cylinder. The two push rods are arranged facing each other and their movement direction is perpendicular to the movement direction of the mover of the linear motor. A chuck is provided on the end of the push rod away from the cylinder to which it is connected.

[0013] Preferably, the supporting platform comprises an upper supporting platform and a lower supporting platform, through holes are provided inside the upper supporting platform and the lower supporting platform, and the upper supporting platform and the lower supporting platform are connected by a connecting piece.

[0014] Preferably, the area of ​​the lower support is larger than the area of ​​the upper support.

[0015] Preferably, a guide assembly is provided on the upper supporting platform and / or the lower supporting platform.

[0016] The present invention also provides a geological exploration platform, comprising:

[0017] The aforementioned geological exploration auxiliary bracket, wherein the connecting piece of the geological exploration auxiliary bracket is a lifting lug;

[0018] The offshore platform is provided with a winch, the winch is connected to the lifting lug through a lifting cable, a through hole is provided inside the offshore platform, and a geological exploration equipment support is provided on the upper surface of the offshore platform.

[0019] Preferably, the geological exploration equipment support of the offshore platform includes a reaction frame and two movable components respectively arranged on both sides of the through hole of the offshore platform, the movable component includes a moving part, the movement directions of the two moving parts are parallel, and the reaction frame is fixedly connected to the two moving parts.

[0020] The present invention also provides a geological exploration device, comprising:

[0021] The aforementioned geological exploration platform;

[0022] The geological survey equipment comprises an in-situ testing instrument and a probe rod, wherein the in-situ testing instrument is arranged on a geological survey equipment support, and the probe rod is installed on the in-situ testing instrument and passes through a through hole arranged inside an offshore platform and a through hole arranged inside a bearing platform in sequence.

[0023] The present invention has the following advantages:

[0024] 1. The geological exploration auxiliary bracket provided by the present invention is fixed to the seabed by a suction cylinder installed at the bottom of the bearing platform. At least two suction cylinders are arranged at the bottom of the bearing platform. The water pipes of the suction cylinders are connected to the drainage and injection system. Different suction cylinders are independently controlled by the drainage and injection system. The horizontality of the whole bracket can be ensured by adjusting the drainage volume of different suction cylinders. A guide assembly is arranged on the bearing platform, which can straighten the geological exploration equipment passing through the through hole of the bearing platform, correct the verticality of the probe rod, and improve the accuracy of the geological exploration data.

[0025] 2. The geological exploration auxiliary support provided by the present invention has a lower support platform with an area larger than that of the upper support platform. The large-area lower support platform can provide a greater anti-overturning moment for the geological exploration auxiliary support by reasonably setting the number of suction cylinders and arranging the distribution positions of the suction cylinders, thereby improving the geological exploration auxiliary support's ability to resist wind and waves.

[0026] 3. The geological exploration platform provided by the present invention has any of the above advantages because it has the aforementioned geological exploration auxiliary bracket.

[0027] 4. The geological survey device provided by the present invention has any of the above advantages because it has the aforementioned geological survey platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 The structure of the geological exploration device according to the embodiment of the present invention is shown in FIG. Figure 1 ;

[0030] Figure 2 The structure of the geological exploration device according to the embodiment of the present invention is shown in FIG. Figure 2 ;

[0031] Figure 3 This is a schematic diagram of the structure of a geological exploration auxiliary support according to an embodiment of the present invention;

[0032] Figure 4 for Figure 3 Schematic diagram of the structure of the guide assembly of the geological exploration auxiliary support.

[0033] Description of reference numerals:

[0034] 1. Carrying platform; 11. Upper bearing platform; 12. Lower bearing platform; 121. Support plate; 122. Support square tube; 13. Guide assembly; 131. Linear motor; 132. Cylinder; 133. Push rod; 134. Chuck; 135. Connecting rod; 14. Support rod; 15. Lifting ear; 16. Flange; 2. Suction cylinder; 21. Water pipe; 3. Offshore platform; 31. Winch; 32. Lifting cable; 33. Support for geological exploration equipment; 331. Moving assembly; 332. Reaction frame; 4. Geological exploration equipment; 41. Probe rod; 42. In-situ test instrument. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] Example

[0040] refer to Figure 1-Figure 4 The geological exploration auxiliary support provided by the embodiment of the present invention includes:

[0041] The load-bearing platform 1 is provided with a connection portion suitable for hoisting, and a through hole is opened inside the load-bearing platform 1;

[0042] A guide assembly 13, disposed on the bearing platform 1, adapted to straighten the geological survey equipment 4 passing through the through hole of the bearing platform 1;

[0043] At least two suction cylinders 2, the suction cylinder 2 includes a cylinder body and a cylinder cover located at the top of the cylinder body, the suction cylinder 2 is arranged at the bottom of the supporting platform 1, and a water pipe 21 with a switch valve is arranged on the suction cylinder 2, the water pipe 21 is connected to the drainage and injection system, and different suction cylinders 2 are independently controlled by the drainage and injection system.

[0044] In this embodiment, the geological exploration auxiliary bracket is fixed to the seabed by a suction cylinder 2 installed at the bottom of the supporting platform 1. At least two suction cylinders 2 are arranged at the bottom of the supporting platform 1. The water pipes 21 of the suction cylinders 2 are connected to the drainage and injection system. Different suction cylinders 2 are independently controlled by the drainage and injection system. By adjusting the drainage volume of different suction cylinders 2, the overall horizontality of the bracket can be ensured. A guide assembly 13 is arranged on the supporting platform 1, which can straighten the geological exploration equipment 4 passing through the through hole of the supporting platform 1, and perform verticality correction on the probe rod 41, so as to improve the accuracy of the geological exploration data.

[0045] In this embodiment, the shape of the suction cylinder 2 is not specifically limited. In a preferred embodiment, the ratio of the cylinder height to the diameter of the suction cylinder 2 is less than or equal to 1. The use of a wide shallow suction cylinder with a cylinder height to diameter ratio less than or equal to 1 can provide a greater suction force for the platform, which is conducive to the installation stability of the platform. Preferably, the diameter of the suction cylinder 2 installed on the support platform 1 can be set to 2m-8m.

[0046] In this embodiment, there is no specific limitation on the number and arrangement position of the suction cylinders 2, which depend on the specific shape and size of the support platform 1. In a specific embodiment, the support platform 1 includes a square bottom plate, and the number of suction cylinders 2 is 4, which are respectively arranged at the diagonals of the bottom plate of the support platform 1.

[0047] In this embodiment, there is no specific limitation on the structure of the guide assembly 13, and it is sufficient to be able to positively intervene in the verticality of the probe rod 41. As an implementation method, the guide assembly 13 includes: a linear motor 131, a cylinder 132, a push rod 133, a chuck 134, a connecting rod 135, a slide rail and a slider. The linear motor 131 is arranged in parallel with the slide rail and is respectively arranged on both sides of the through hole of the support platform 1. A slider is slidably installed on the slide rail. The slider is connected to the mover of the linear motor 131 through a connecting rod 135. The slider and the mover of the linear motor 131 are both fixedly installed with a cylinder 132. The push rod 133 is connected to the piston of the cylinder 132 and extends outward from the cylinder 132. The two push rods 133 are arranged opposite to each other and their movement direction is perpendicular to the movement direction of the mover of the linear motor 131. A chuck 134 is arranged on the end of the push rod 133 away from the cylinder 132 to which it is connected.

[0048] As another embodiment, refer to Figure 4The guide assembly 13 includes: a linear motor 131, a cylinder 132, a push rod 133, and a chuck 134. The two linear motors 131 are arranged in parallel and distributed on both sides of the through hole of the support platform 1. The cylinder 132 is fixedly installed on the movers of the two linear motors 131. The push rod 133 is connected to the piston of the cylinder 132 and extends outward from the cylinder 132. The two push rods 133 are arranged opposite to each other and their movement direction is perpendicular to the movement direction of the mover of the linear motor 131. A chuck 134 is arranged on one end of the push rod 133 away from the cylinder 132 to which it is connected.

[0049] On the basis of the above embodiments, in a preferred embodiment, both ends of the connecting rod 135 are respectively fixedly connected to the movers of the two linear motors 131. The arrangement of the connecting rod 135 can ensure that the movers of the two linear motors 131 are synchronized.

[0050] In this embodiment, the structure of the supporting platform 1 is not specifically limited. As one implementation mode, the supporting platform 1 is a plate-like structure, a connection portion suitable for hoisting is provided on its surface, and a suction cylinder 2 is connected to its lower surface; as another implementation mode, the supporting platform 1 includes an upper supporting platform 11 and a lower supporting platform 12, and through holes are provided inside the upper supporting platform 11 and the lower supporting platform 12. The upper supporting platform 11 and the lower supporting platform 12 are connected to each other by a connecting piece, a connection portion suitable for hoisting is provided on the surface of the upper supporting platform 11, and the suction cylinder 2 is provided at the bottom of the lower supporting platform 12.

[0051] On the basis of the above-mentioned embodiment, in a preferred embodiment, the area of ​​the lower support 12 is larger than the area of ​​the upper support 11 .

[0052] In this embodiment, the area of ​​the lower support platform 12 is larger than that of the upper support platform 11. The large-area lower support platform 12 can provide a greater anti-overturning moment for the geological exploration auxiliary support by reasonably setting the number of suction cylinders 2 and arranging the distribution positions of the suction cylinders 2, thereby improving the wind and wave resistance of the geological exploration auxiliary support.

[0053] In this embodiment, the specific shapes of the upper support 11 and the lower support 12 are not specifically limited. Figure 3 The upper support platform 11 and the lower support platform 12 are both square.

[0054] In this embodiment, the structure of the connecting member connecting the upper support 11 and the lower support 12 is not specifically limited, and it can be a plate-like structure or a Figure 3 The support rod 14 is fixed to the upper support platform 11 and the lower support platform 12 by welding.

[0055] In this embodiment, the plate-like structure of the carrier platform 1 is not specifically limited. As an embodiment, it can be a support plate 121; as another embodiment, refer to Figure 3The lower support platform 12 in the structure can be two support plates 121 and a plurality of support square tubes 122 arranged between the two support plates 121. The size of the support square tubes 122 is set according to the load of the lower support platform 12. The support square tubes 122 at the edges are connected to the support rods 14 by welding, and the support plates 121 and the support square tubes 122 are welded and fixed.

[0056] In this embodiment, the number of guide components 13 is not specifically limited. As an embodiment, it can be installed separately on the upper support 11; as an embodiment, it can also be installed separately on the lower support 12; as an embodiment, refer to Figure 3 Alternatively, both the upper support platform 11 and the lower support platform 12 are provided with guide components 13 .

[0057] This embodiment also provides a geological exploration platform, including:

[0058] The aforementioned geological exploration auxiliary bracket, the connecting piece of the geological exploration auxiliary bracket is a lifting lug 15;

[0059] The offshore platform 3 is provided with a winch 31 , which is connected to the lifting lug 15 via a hoisting cable 32 . A through hole is provided inside the offshore platform 3 , and a geological exploration equipment support 33 is provided on the upper surface of the offshore platform 3 .

[0060] In this embodiment, the number and arrangement position of the hoist 31 are not specifically limited, depending on the power of the hoist 31, the size and weight of the auxiliary support for geological exploration, and specifically, refer to Figure 2 Four winches 31 are fixedly installed at the bottom of the offshore platform 3, and four lifting ears 15 are installed on the geological exploration auxiliary bracket. The winches 31 are connected to the lifting ears 15 through lifting cables 32, wherein the lifting ears 15 are fixedly connected to the support rods 14 welded to the upper platform 11 through flanges 16.

[0061] In this embodiment, the structure of the geological exploration equipment support 33 of the offshore platform 3 is not specifically limited, and it only needs to provide vertical support for the geological exploration equipment 4. As an implementation method, it can be a set of fixed brackets arranged in parallel on both sides of the through hole of the offshore platform 3. The fixed brackets are bolted or welded to the offshore platform 3. The geological exploration equipment 4 can be directly fixed on the fixed brackets for operation. As an implementation method, the geological exploration equipment support 33 of the offshore platform 3 includes a reaction frame 332 and two moving components 331 respectively arranged on both sides of the through hole of the offshore platform 3. The moving component 331 includes a moving part, and the movement directions of the two moving parts are parallel. The reaction frame 332 is fixedly connected to the two moving parts. Specifically, the moving component 331 can be a linear motor 131 with a locking function, and the reaction frame 332 is fixedly connected to the mover of the linear motor 131.

[0062] In this embodiment, the mover of the linear motor 131 can drive the geological exploration equipment 4 to adjust its position along the arrangement direction of the linear motor 131, and the linear motor 131 with a locking function can fix the geological exploration equipment 4 after completing the position adjustment.

[0063] On the basis of the above embodiments, in a preferred embodiment, both ends of the connecting rod 135 are respectively fixedly connected to the movers of the two linear motors 131. The arrangement of the connecting rod 135 can ensure that the movers of the two linear motors 131 are synchronized.

[0064] This embodiment also provides a geological exploration device, including:

[0065] The aforementioned geological exploration platform;

[0066] The geological survey equipment 4 includes an in-situ testing instrument 42 and a probe rod 41. The in-situ testing instrument 42 is arranged on the top, and the probe rod 41 is installed on the in-situ testing instrument 42 and passes through the through hole arranged inside the offshore platform 3 and the through hole arranged inside the supporting platform 1 in sequence.

[0067] It is easy to understand that, in order to facilitate the lowering of the probe rod 41, when the through holes of the offshore platform 3 and the support platform 1 are both circular holes, their centers should be located on the same axis. Preferably, the diameter of the circular hole is 1m-5m.

[0068] Based on the above specific implementation, the working process of the geological exploration device in this embodiment is as follows:

[0069] S1. Fix the offshore platform 3. Move the self-elevating offshore platform 3 to the predetermined exploration point, perform pile insertion and positioning operations, and ensure that the horizontality of the platform structure is controlled within ±5 mm.

[0070] S2. Fix the auxiliary support for geological exploration. Open the water pipe 21 to lower the bearing platform 1 to the mud surface, and then use the bearing platform 1 to sink by its own weight. During this process, the lowering speed is controlled within 10 mm / s, and the horizontality of the bearing platform 1 during the sinking process is controlled within 5‰ by the suspension cable 32.

[0071] When the supporting platform 1 no longer sinks under the action of gravity, water is pumped from the inside of the suction cylinder 2 through the water pipe 21, and the horizontality of the supporting platform 1 is adjusted by controlling the pumping speed of the four suction cylinders 2. In this process, the sinking speed of the suction cylinders 2 is controlled within 5 mm / s until the suction cylinders 2 no longer sink.

[0072] S3. Geological exploration. Install the in-situ test instrument 42 and the probe rod 41, adjust the guide structures on the platform, the upper support 11 and the lower support 12 respectively, so that the probe rod 41 is kept vertically lowered to the mud surface, and then carry out geological exploration. When carrying out exploration, keep the water pipe 21 on the suction cylinder 2 in a closed state to ensure that the auxiliary bracket has sufficient pull-out resistance.

[0073] S4. Recover the geological exploration device and the geological exploration auxiliary support. Recover the probe rod 41 and the in-situ test instrument 42, and pump water and pressure into the suction cylinder 2 through the water pipe 21 to slowly lift the suction cylinder 2. During this process, the rising speed of the suction cylinder 2 is controlled within 2 cm / s, and the suspension cable 32 is kept in a tensioned state to complete the recovery of the geological exploration auxiliary support. The offshore platform 3 conducts exploration operations at the next exploration point.

[0074] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. 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 implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A geological exploration auxiliary support, characterized in that: include: The bearing platform (1) is provided with a connection portion suitable for hoisting, and a through hole is opened inside the bearing platform (1); A guide assembly (13), arranged on the bearing platform (1), suitable for straightening a geological survey device (4) passing through a through hole of the bearing platform (1); The guide assembly (13) comprises: a linear motor (131), a cylinder (132), a push rod (133), and a chuck (134); the two linear motors (131) are arranged in parallel and distributed on both sides of the through hole of the support platform (1); the cylinder (132) is fixedly installed on the movers of the two linear motors (131); the push rod (133) is connected to the piston of the cylinder (132) and extends outward from the cylinder (132); the two push rods (133) are arranged facing each other and their movement direction is perpendicular to the movement direction of the mover of the linear motor (131); and a chuck (134) is arranged on one end of the push rod (133) away from the cylinder (132) to which it is connected; Four suction cylinders (2), each of the suction cylinders (2) comprising a cylinder body and a cylinder cover located at the top of the cylinder body, the suction cylinder (2) being arranged at the bottom of the supporting platform (1), the suction cylinder (2) being provided with a water pipe (21) with a switch valve, the water pipe (21) being connected to a drainage and injection system, the suction cylinders (2) being independently controlled by the drainage and injection system, and the ratio of the cylinder height to the diameter of the suction cylinder (2) being less than or equal to 1; The support platform (1) comprises a square bottom plate, and the four suction cylinders (2) are respectively arranged at the diagonal positions of the support platform (1).

2. The geological exploration auxiliary support according to claim 1, characterized in that: The support platform (1) comprises an upper support platform (11) and a lower support platform (12); through holes are provided inside the upper support platform (11) and the lower support platform (12); and the upper support platform (11) and the lower support platform (12) are connected via a connecting piece.

3. The geological exploration auxiliary support according to claim 2, characterized in that: The area of ​​the lower support platform (12) is greater than the area of ​​the upper support platform (11).

4. The geological exploration auxiliary support according to claim 3, characterized in that: A guide assembly (13) is provided on the upper support platform (11) and / or the lower support platform (12).

5. A geological exploration platform, characterized in that: include: The geological exploration auxiliary bracket according to any one of claims 1 to 4, wherein the connecting piece of the geological exploration auxiliary bracket is a lifting lug (15); An offshore platform (3) is provided with a winch (31), the winch (31) is connected to the lifting lug (15) via a lifting cable (32), a through hole is provided inside the offshore platform (3), and a geological exploration equipment support (33) is provided on the upper surface of the offshore platform (3).

6. The geological exploration platform according to claim 5, characterized in that: The geological exploration equipment support (33) of the offshore platform (3) comprises a reaction frame (332) and two movable components (331) respectively arranged on both sides of the through hole of the offshore platform (3); the movable components (331) comprise a movable part, the movement directions of the two movable parts are parallel, and the reaction frame (332) is fixedly connected to the two movable parts.

7. A geological survey device, characterized in that: include: The geological exploration platform according to claim 5 or 6; The geological survey equipment (4) comprises an in-situ testing instrument (42) and a probe rod (41), wherein the in-situ testing instrument (42) is arranged on a geological survey equipment support (33), and the probe rod (41) is installed on the in-situ testing instrument (42) and passes through a through hole arranged inside an offshore platform (3) and a through hole arranged inside the bearing platform (1) in sequence.

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