Pile stabilizing platform and using method

Abstract

The invention relates to the technical field of seabed pile stabilizing, and discloses a pile stabilizing platform and a using method.The pile stabilizing platform comprises a traction system and seabed equipment and further comprises a control assembly, a pile stabilizing assembly and a leveling assembly, the pile stabilizing assembly comprises a sleeve, a triangular frame and an M-shaped righting assembly, and the seabed equipment is arranged in the triangular frame; the sleeves are fixedly connected to the triangular positions of the triangular frame, the M-shaped righting assemblies are annularly arranged on the peripheral sides of the sleeves, the clamping ends of the M-shaped righting assemblies extend into the sleeves, the leveling assemblies are distributed at the triangular positions of the triangular frame in pairs, and each leveling assembly is composed of a hydraulic leveling execution unit, a telescopic leg and a mud pad. The distance threshold monitoring module can monitor parameters of the end distance, the pushing distance and the supporting distance, the problem that a platform or a sleeve touches the bottom due to the fact that landform bearing and detection distance enter and exit is solved, the pushing length of the hydraulic leveling execution unit is shortened, the service life of an air cylinder is prolonged, and the stability of the air cylinder is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of seabed stabilizing piles, and in particular to a stabilizing pile platform and a use method thereof. Background Art

[0002] The pile stabilization platform is applied to the submarine riverbed, and it has the functions of leveling and supporting, and the horizontality of the platform is adjusted by hydraulic pressure. However, the pile stabilization platform also has ground slope requirements. When the ground slope is too large, the hydraulic adjustment mechanism cannot contact the riverbed when it is pushed to the extreme position. Therefore, there are multiple ranging probes at the bottom of the pile stabilization platform.

[0003] Since the riverbed surface will deform when under pressure, there will be an error between the actual support depth and the depth detected by the probe. When the detection interval is smaller than the actual support depth, it is easy for the sleeve to contact the seabed, which will cause certain difficulties in subsequent leveling.

[0004] The traditional pile-stabilized platform itself is heavy and high, with an unstable center of gravity, and is easily disturbed by the lateral force of the water flow, especially in sea areas with deep silt layers. Auxiliary piles or suction anchors often have to be inserted deep into the mud to achieve a fixed effect. In addition, the height of the entire platform and the unstable center of gravity lead to inaccurate positioning. Summary of the invention

[0005] The object of the present invention is to provide a pile stabilization platform and a method of use to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A pile stabilizing platform includes a traction system and seabed equipment, and also includes a control component, a pile stabilizing component, and a leveling component;

[0008] The pile stabilizing assembly includes a sleeve, a triangular frame, and an M-shaped straightening assembly. The subsea equipment is arranged inside the triangular frame. The sleeve is fixedly connected to the triangular part of the triangular frame. The M-shaped straightening assembly is annularly arranged on the peripheral side of the sleeve and the clamping end extends to the inside of the sleeve. The leveling assemblies are distributed in groups of two at the triangular part of the triangular frame. The leveling assembly consists of a hydraulic leveling execution unit, a telescopic leg, and a mud pad. The hydraulic leveling execution unit drives the telescopic leg to slide vertically at the bottom of the triangular frame, and the mud pad is movably connected to the bottom end of the telescopic leg.

[0009] The control component includes a support distance data acquisition unit, an end distance data acquisition unit, a push distance acquisition unit, a leveling control terminal, and a spacing threshold monitoring module; the support distance data acquisition unit collects the distance between the mud pad and the bottom surface as the support distance, the end distance data acquisition unit collects the distance between the edge of the sleeve and the bottom surface as the end distance, and the push distance acquisition unit collects the sliding distance between the telescopic legs as the push distance. The spacing threshold monitoring module obtains the bed layer difference based on the support distance, end distance, and push distance, and adjusts the real-time position of the pile stabilizing component through the traction system.

[0010] As a further solution of the present invention: the bottom end of the telescopic leg is movably connected to the mud pad via a cross hinge.

[0011] As a further solution of the present invention: the M-shaped centralizer assembly includes an upper centralizer and a lower centralizer, the upper centralizer and the lower centralizer are distributed up and down, and the cylinders of the upper centralizer and the lower centralizer are arranged in the middle of the sleeve.

[0012] As a further solution of the present invention: a top collector is fixedly connected to the top of the sleeve.

[0013] As a further solution of the present invention: a side hanging ear is fixedly connected to the middle position of the top of the triangular frame, and three center hanging ears are fixedly connected to the top edge of the triangular frame.

[0014] As a further solution of the present invention: it also includes a riverbed depression database for providing a minimum end distance reference range.

[0015] As a further solution of the present invention, a method for using a pile stabilizing platform comprises:

[0016] A: The traction rope is fixed to the central lifting lug and the side lifting lug respectively, and the triangular frame is gradually lowered through the traction system control. The settlement range of the landform obtained from the riverbed depression database is used as a reference, and the end distance is monitored by the end distance data acquisition unit to control the end distance to ensure that the end distance is greater than the settlement range;

[0017] B: On the basis of the end distance range in step A, after the distances collected by the distance data collection unit are all smaller than the maximum distance pushed by the hydraulic leveling execution unit, the test phase is entered;

[0018] C: According to the reference range of the support distance data acquisition unit, control the hydraulic leveling execution unit of the minimum support distance to push downward until the horizontal position of the triangular frame shakes or other end distances and support distances are displaced, and the displacement of the telescopic legs is recorded through the push distance acquisition unit. When the displacement is less than the end distance, or the sum of the displacement and the starting end distance is less than the push distance of the corresponding position, start the deployment;

[0019] D: During deployment, the traction system controls the triangular frame to hover in the water, and the hydraulic leveling actuator pushes the telescopic legs down until the triangular frame has a slight position change. The traction system slowly releases the triangular frame downward, and the hydraulic leveling actuator slowly contracts to control the end distance to be reduced.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In order to ensure that the leveling requirements are met at one time, a spacing threshold monitoring module is set up. The spacing threshold monitoring module can monitor the parameters of the end distance, push distance and support distance. When the end distance is within the basic spacing range obtained on the basis of the riverbed depression database, and the sum of the end distance and the end distance obtained by the mud pad is greater than the push distance, it can be lowered. The leveling control terminal controls the hydraulic leveling execution unit at the lowest end distance according to the parameters obtained by the spacing threshold monitoring module, and pushes the telescopic legs down until the triangular frame is lifted, or the horizontal monitoring mechanism of the triangular frame detects the displacement change, and the actual difference is obtained through the end distance and the push distance. To solve the problem of the platform or sleeve touching the bottom due to the discrepancy between the terrain load-bearing capacity and the detection spacing, the spacing threshold monitoring module is used to calculate according to the actual difference, so that the end distance is greater than the actual difference, and the push distance is greater than the sum of the support distance and the difference, and the operation begins. Until the end distances are all the basic values ​​or equal to 0, the traction system controls the triangular frame to descend, and at the same time the hydraulic leveling actuator unit shrinks to reduce the end distance, thereby reducing the push length of the hydraulic leveling actuator unit, improving the cylinder life and stability, and the low center of gravity, more compact structure, and built-in positioning correction and detection leveling functions make the positioning efficiency and positioning accuracy higher, and can adapt to more complex seabed conditions. Because there are no auxiliary piles or suction anchors in the mud, the efficiency of changing the machine position is higher, and the area of ​​the pile shoe will be designed according to the seabed geological conditions to meet the load requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A schematic top view of a pile stabilization platform;

[0024] Figure 2 A schematic diagram of the use of a pile stabilization platform;

[0025] Figure 3 It is a schematic diagram of the main view of a pile stabilization platform;

[0026] Figure 4A schematic diagram of the cooperation between a sleeve and an M-shaped straightening assembly in a pile stabilization platform;

[0027] Figure 5 It is a schematic diagram of the first stage of leveling in a pile-stabilizing platform;

[0028] Figure 6 A schematic diagram of the second stage of leveling in a pile-stabilizing platform;

[0029] Figure 7 A schematic diagram of three stages of leveling in a pile-stabilizing platform;

[0030] Figure 8 It is a schematic diagram of the first stage of leveling in a pile stabilization platform;

[0031] Fig. 9 A schematic diagram of the first stage of leveling in a pile stabilization platform

[0032] In the figure: 100, support distance data acquisition unit; 200, end distance data acquisition unit; 300, push distance acquisition unit; 400, leveling control terminal; 500, spacing threshold monitoring module; 600, riverbed depression database; 700, traction system; 1, seabed equipment; 2, sleeve; 21, top collector; 3, triangular frame; 31, center lifting eye; 32, side lifting eye; 4, M-shaped straightening assembly; 41, upper straightening device; 42, lower straightening device; 5, hydraulic leveling execution unit; 6, telescopic leg; 7, mud pad; 71, cross hinge. DETAILED DESCRIPTION

[0033] See also Figure 1-Figure 9 : In this embodiment:

[0034] In this embodiment, it includes a traction system 700 and a seabed device 1, and also includes a control component, a pile stabilizing component, and a leveling component;

[0035] In this embodiment, the pile stabilizing assembly includes a sleeve 2, a triangular frame 3, and an M-shaped straightening assembly 4. The seabed equipment 1 is arranged inside the triangular frame 3, the sleeve 2 is fixedly connected to the triangle of the triangular frame 3, the M-shaped straightening assembly 4 is annularly arranged on the circumference of the sleeve 2 and the clamping end extends to the inside of the sleeve 2, and the leveling assemblies are distributed in groups of two at the triangle of the triangular frame 3. The leveling assembly is composed of a hydraulic leveling execution unit 5, a telescopic leg 6, and a mud pad 7. The hydraulic leveling execution unit 5 drives the telescopic leg 6 to slide vertically at the bottom of the triangular frame 3, and the mud pad 7 is movably connected to the bottom end of the telescopic leg 6.

[0036] In this embodiment, the triangular frame 3 is triangular, the sleeve 2 is arranged at the end of the triangular frame 3, and plays a guiding role in guiding the pile body. The M-shaped straightening assembly 4 is M-shaped, and the M-shaped straightening assembly 4 includes an upper straightening device 41 and a lower straightening device 42. The upper straightening device 41 and the lower straightening device 42 are distributed up and down, and the cylinders of the upper straightening device 41 and the lower straightening device 42 are arranged in the middle of the sleeve 2. Please refer to Figure 4 The M-shaped design can reduce the space occupied in the horizontal direction. The two driving push rods push at the same time, so that one end of the lever structure formed by the upper centralizer 41 and the lower centralizer 42 is displaced, and the other end is pushed inward, thereby completing the clamping of the pile body. In order to ensure the stability of the support, the telescopic legs 6 and the mud pads 7 are set on the side close to the sleeve 2. Please refer to Figure 1 , sleeve 2 is arranged at the end of triangular frame 3, telescopic legs 6 and mud pad 7 are arranged at two independent support rods at the end of triangular frame 3. At this time, a total of six leveling components cooperate to level the triangular frame 3, and the present invention has a low center of gravity, a more compact structure, and self-positioning correction and detection and leveling functions, so that the positioning efficiency and positioning accuracy are higher, and it can adapt to more complex seabed working conditions. Because there are no auxiliary piles or suction anchors entering the mud, the efficiency of changing the machine position is higher, and the area of ​​the pile shoe will be designed according to the geological conditions of the seabed to meet the load-bearing requirements.

[0037] In this embodiment, the telescopic legs 6 are driven by the hydraulic leveling execution unit 5 to move up and down, so that the triangular frame 3 is leveled by the different extension lengths of the hydraulic leveling execution unit 5 and the contact of the mud pad 7 with the uneven seabed surface.

[0038] In this embodiment, the control component includes a support distance data acquisition unit 100, an end distance data acquisition unit 200, a push distance acquisition unit 300, a leveling control terminal 400, and a spacing threshold monitoring module 500; the support distance data acquisition unit 100 collects the distance between the mud pad 7 and the bottom surface as the support distance, the end distance data acquisition unit 200 collects the distance between the edge of the sleeve 2 and the bottom surface as the end distance, the push distance acquisition unit 300 collects the sliding distance of the telescopic leg 6 as the push distance, and the spacing threshold monitoring module 500 obtains the bed layer difference based on the support distance, end distance, and push distance, and adjusts the real-time position of the pile stabilizing component through the traction system 700.

[0039] In this embodiment, the support distance data acquisition unit 100 is set at the bottom of the mud pad 7, and an embedding groove or a deep hole can be opened at the bottom of the mud pad 7 to prevent the mud pad 7 from contacting the seabed and causing damage. The support distance between the mud pad 7 and the seabed can be obtained by subtracting the hole depth from the detection value of the support distance data acquisition unit 100. Since the seabed has a slope change, the end distance data acquisition unit 200 is set at the bottom end of the sleeve 2. According to the installation method of the support distance data acquisition unit 100, the distance between the edge of the sleeve 2 and the seabed can be detected. This distance is the end distance. The purpose of setting the end distance is to avoid special slope changes. When the support distance and push distance obtained by the support distance data acquisition unit 100 and the push distance acquisition unit 300 meet the requirements, the end distance data acquisition unit 200 contacts the seabed, resulting in difficulty in leveling.

[0040] In this embodiment, in order to ensure that the leveling requirement is met once, a spacing threshold monitoring module 500 is set, which can monitor the parameters of the end distance, the push distance and the support distance. When the end distance is within the basic spacing range obtained based on the riverbed depression database 600, and the end distance and the end distance obtained by the mud pad 7 are greater than the push distance, the mud pad 7 can be lowered.

[0041] In this embodiment, a riverbed depression database 600 for providing a minimum end distance reference range is also included. The riverbed depression database 600 stores surface stress depression depths of various types of seabeds, etc., only to provide a reference spacing for the end distance.

[0042] In this embodiment, when the end distance is within the basic spacing range obtained on the basis of the riverbed depression database 600, and the end distance obtained by the mud pad 7 and the end distance sum are greater than the push distance, the test phase is entered. The leveling control terminal 400 controls the hydraulic leveling execution unit 5 at the lowest end distance according to the parameters obtained by the spacing threshold monitoring module 500, and pushes the telescopic legs 6 down until the triangular frame 3 is lifted, or the horizontal monitoring mechanism of the triangular frame 3 detects the displacement change, and obtains the actual difference through the end distance and the push distance. The spacing threshold monitoring module 500 calculates according to the actual difference, so that the end distance is greater than the actual difference, and the push distance is greater than the sum of the support distance and the difference, and the operation begins. Until the end distances are all basic values ​​or equal to 0, the traction system 700 controls the triangular frame 3 to descend, and at the same time, the hydraulic leveling execution unit 5 contracts to reduce the end distance, thereby reducing the push length of the hydraulic leveling execution unit 5 and improving the cylinder life and stability.

[0043] In this embodiment, the bottom end of the telescopic leg 6 is movably connected to the mud pad 7 via a cross hinge 71; due to the diversity of seabed terrain and the number of telescopic legs 6 being 6, the cross hinge 71 can increase the freedom of movement of the telescopic leg 6 and the mud pad 7.

[0044] In this embodiment, a top collector 21 is fixedly connected to the top of the sleeve 2; the top collector 21 improves the convenience of pile insertion and plays a guiding role for the pile.

[0045] In this embodiment, a side lifting lug 32 is fixedly connected to the middle position of the top of the triangular frame 3, and three central lifting lugs 31 are fixedly connected to the top edge of the triangular frame 3; the design of multiple lifting lugs can increase the stability of lifting.

[0046] Usage process:

[0047] A: The traction rope is fixed to the central lifting lug 31 and the side lifting lug 32 respectively, and the triangular frame 3 is gradually lowered by the traction system 700. The settlement range of the landform obtained by the riverbed depression database 600 is used as a reference to monitor and control the end distance through the end distance data acquisition unit 200 to ensure that the end distance is greater than the settlement range;

[0048] B: On the basis of the end distance range in step A, after the distances collected by the distance data collection unit 100 are all smaller than the maximum distance pushed by the hydraulic leveling execution unit 5, the test phase is entered;

[0049] C: According to the reference range of the support distance data acquisition unit 100, the hydraulic leveling execution unit 5 of the minimum support distance is controlled to push downward until the horizontal position of the triangular frame 3 shakes or other end distances and support distances are displaced, and the displacement of the telescopic legs 6 is recorded by the push distance acquisition unit 300. When the displacement is less than the end distance, or the sum of the displacement and the starting end distance is less than the push distance of the corresponding position, the deployment is started;

[0050] D: During deployment, the traction system 700 controls the triangular frame 3 to hover in the water, and the hydraulic leveling execution unit 5 pushes the telescopic legs 6 down until the triangular frame 3 has a slight position change. Then, the traction system 700 slowly releases the triangular frame 3 downward, and the hydraulic leveling execution unit 5 slowly contracts to control the end distance to be reduced.

[0051] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pile stabilization platform, comprising a traction system (700) and a seabed device (1), characterized in that: It also includes control components, pile stabilization components, and leveling components; The pile stabilizing assembly comprises a sleeve (2), a triangular frame (3), and an M-shaped straightening assembly (4); the subsea equipment (1) is arranged inside the triangular frame (3); the sleeve (2) is fixedly connected to the triangular part of the triangular frame (3); the M-shaped straightening assembly (4) is annularly arranged on the circumference of the sleeve (2) and the clamping end extends to the inside of the sleeve (2); the leveling assemblies are distributed in groups of two at the triangular part of the triangular frame (3); the leveling assembly consists of a hydraulic leveling execution unit (5), a telescopic leg (6), and a mud pad (7); the hydraulic leveling execution unit (5) drives the telescopic leg (6) to slide vertically at the bottom of the triangular frame (3); and the mud pad (7) is movably connected to the bottom end of the telescopic leg (6); The control component comprises a support distance data acquisition unit (100), an end distance data acquisition unit (200), a push distance acquisition unit (300), a leveling control terminal (400), and a spacing threshold monitoring module (500); the support distance data acquisition unit (100) acquires the spacing between the mud pad (7) and the bottom surface as the support distance, the end distance data acquisition unit (200) acquires the spacing between the edge of the sleeve (2) and the bottom surface as the end distance, the push distance acquisition unit (300) acquires the sliding spacing of the telescopic legs (6) as the push distance, and the spacing threshold monitoring module (500) acquires the bed layer difference according to the support distance, the end distance, and the push distance, and adjusts the real-time position of the pile stabilizing component through the traction system (700).

2. A pile stabilization platform according to claim 1, characterized in that: The bottom end of the telescopic leg (6) is movably connected to the mud pad (7) via a cross hinge (71).

3. The pile stabilization platform according to claim 1, characterized in that: The M-shaped centralizing assembly (4) comprises an upper centralizer (41) and a lower centralizer (42), wherein the upper centralizer (41) and the lower centralizer (42) are distributed up and down, and the cylinders of the upper centralizer (41) and the lower centralizer (42) are arranged in the middle of the sleeve (2).

4. The pile stabilization platform according to claim 1, characterized in that: A top collector (21) is fixedly connected to the top of the sleeve (2).

5. The pile stabilization platform according to claim 1, characterized in that: A side lifting lug (32) is fixedly connected to the middle position of the top of the triangular frame (3), and three center lifting lugs (31) are fixedly connected to the top edge of the triangular frame (3).

6. The pile stabilization platform according to claim 1, characterized in that: Also included is a riverbed depression database (600) for providing a minimum end distance reference range.

7. A method for using a pile stabilizing platform according to any one of claims 1 to 6, characterized in that: include: A: The traction ropes are fixed to the central lifting lug (31) and the side lifting lugs (32) respectively, and the triangular frame (3) is gradually lowered by the traction system (700). The settlement range of the landform obtained from the riverbed depression database (600) is used as a reference, and the end distance is monitored by the end distance data acquisition unit (200) to control the end distance to ensure that the end distance is greater than the settlement range; B: On the basis of the end distance range in step A, after the distances collected by the distance data collection unit (100) are all smaller than the maximum distance pushed by the hydraulic leveling execution unit (5), the test phase is entered; C: According to the reference range of the span data acquisition unit (100), the hydraulic leveling execution unit (5) of the minimum span is controlled to push downward until the horizontal position of the triangular frame (3) shakes or other end spans and spans are displaced, and the displacement of the telescopic legs (6) is recorded by the push distance acquisition unit (300). When the displacement is less than the end span, or the sum of the displacement and the initial end span is less than the push distance of the corresponding position, the deployment is started; D: During deployment, the traction system (700) controls the triangular frame (3) to suspend in the water, and the hydraulic leveling execution unit (5) pushes the telescopic legs (6) downward until the triangular frame (3) has a slight position change. Then, the traction system (700) slowly releases the triangular frame (3) downward, and the hydraulic leveling execution unit (5) slowly contracts to control the end distance to be reduced.

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