Inner pile stabilizing platform, steel pipe pile perpendicularity control method and steel pipe pile construction method

Abstract

The embodiment of the invention provides an inner pile stabilizing platform, a steel pipe pile perpendicularity control method and a steel pipe pile construction method. Wherein the inner pile stabilizing platform comprises a base, a top cover, a main deviation rectifying oil jack group and distance measuring equipment; the base is fixed to the bottom end of the top cover, and the main deviation rectifying oil jack set and the distance measuring equipment are arranged on the top cover. According to the method, a base is fixed to the top of an internal steel pipe pile, when an external steel pipe pile is lowered, a first telescopic oil jack in a main deviation rectifying oil jack set or a second telescopic oil jack of a standby deviation rectifying oil jack set stretches out to abut against the inner wall of the external steel pipe pile, and the relative distance between a first steel pipe pile and a second steel pipe pile can be determined through distance measuring equipment; and the position of the second steel pipe pile is adjusted by adjusting output force of the first telescopic oil jack, and precise piling is completed. Compared with an existing pile stabilizing platform, according to the internal stabilizing platform and method, the pile stabilizing platform does not need to be built outside, manpower and material resources can be saved, the construction period is greatly shortened, and accurate sleeving connection of the steel pipe piles can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of water-based steel pipe pile engineering, and in particular to an internal stabilizing pile platform, a method for controlling the verticality of steel pipe piles, and a method for constructing steel pipe piles. Background Art

[0002] Steel pipe piles are a commonly used building foundation material, mainly used to support the structure of buildings. They are also important structures in offshore engineering, especially in offshore wind farms, bridges, docks and other marine structures.

[0003] With the development of the offshore wind power industry, the demand for steel pipe piles is expected to continue to grow in the next few years. Considering the long-term development of offshore projects, how to refurbish or replace offshore steel pipe piles that have reached the end of their service life is an important issue. Steel pipe piles generally need to be installed through a pile stabilization platform. The characteristics of this type of platform are that it can maintain a stable operating state in a deep-sea environment and ensure the safe operation of drilling equipment even in harsh sea conditions. In the existing technology, the construction of a pile stabilization platform is more complicated, and the steel pipe pile socketing solution has a long construction period and is complex to implement.

[0004] In view of the above-mentioned defects, the present application proposes an internal stabilizing pile platform, a steel pipe pile verticality control method and a steel pipe pile construction method, which can realize continuous and automatic control of the verticality of steel pipe pile foundation construction. Summary of the invention

[0005] The embodiments of the present application provide an internal stabilization pile platform, a steel pipe pile verticality control method and a steel pipe pile construction method, which can realize continuous and automatic control of the verticality of steel pipe pile foundation construction.

[0006] In a first aspect, an embodiment of the present application provides an internally stable pile platform, comprising:

[0007] It includes a base, a top cover, a main deviation correction oil top group and a distance measuring device; wherein: the base is fixed at the bottom end of the top cover, and the diameter of the base is smaller than the diameter of the top cover;

[0008] The main deviation-correcting oil top group includes at least four first telescopic oil tops, which are distributed on the edge of the top cover and telescope outwards, and rollers are fixed to the telescopic ends of the first telescopic oil tops; the first telescopic oil tops are arranged on the same cross section of the top cover;

[0009] The distance measuring device is arranged on the top cover, and is used for measuring the distance between the top cover and the inner wall of the second steel pipe pile.

[0010] In a possible design, it also includes a spare correcting oil top group, which includes at least four second telescopic oil tops. The second telescopic oil tops are distributed on the edge of the top cover and telescope outward, and rollers are fixed to the telescopic ends of the second telescopic oil tops; the second telescopic oil tops are arranged on the same cross-section of the top cover.

[0011] In a possible design, the distance measuring device is a total station or a sensor group; the sensor group includes at least five distance measuring sensors, and the distance measuring sensors are fixed on the same cross section of the top cover.

[0012] In a second aspect, an embodiment of the present application provides a method for controlling the verticality of a steel pipe pile based on an internal stabilization pile platform, which is used to control the above-mentioned internal stabilization pile platform, and the method includes:

[0013] When the second steel pipe pile is lowered to a first preset height, the telescopic oil top is extended with an initial force; the first preset height is the lowering height when the inner stabilizing pile platform enters the second steel pipe pile;

[0014] When the second preset height is placed under the second steel pipe pile, the cross-sectional trajectory of the inner wall of the second steel pipe pile is fitted by the distance measuring device, and the verticality of the second steel pipe pile is determined according to the cross-sectional trajectory; the second preset height is the height of the second steel pipe pile when it enters the mud surface;

[0015] If the verticality is greater than the preset verticality, the target oil top and the output value of the target oil top are determined according to the cross-section trajectory; the position of the second steel pipe pile is corrected according to the target oil top and the output value of the target oil top;

[0016] After a preset time period or a preset height period, the step of fitting the cross-sectional trajectory of the inner wall of the second steel pipe pile by the distance measuring device is returned until the lowering height of the second steel pipe pile reaches a third preset position.

[0017] In a possible design, fitting the cross-sectional trajectory of the inner wall of the second steel pipe pile by a distance measuring device includes:

[0018] The coordinate points of the inner wall of the second steel pipe pile on the preset cross section obtained by the ranging device on the preset coordinate system are obtained, and the cross-section trajectory is obtained according to the coordinate points, wherein the origin of the preset coordinate system is the axis of the first steel pipe pile, and the cross-section trajectory is an ellipse.

[0019] In a possible design, the verticality of the second steel pipe pile is determined according to the cross-sectional trajectory, including:

[0020] The first ratio is obtained according to the ratio of the second steel pipe pile to twice the major semi-axis, wherein the major semi-axis is the major semi-axis of the cross-sectional trajectory; and the verticality is obtained according to the difference between 1 and the square of the first ratio.

[0021] In a possible design, the target oil top and the output value of the target oil top are determined according to the cross-sectional trajectory, including

[0022] Determine the resultant force that the second steel pipe pile should be subjected to and the direction of the resultant force according to the cross-section trajectory;

[0023] Determine whether the direction of the resultant force coincides with the direction of the telescopic oil top, where the direction of the telescopic oil top is the extension direction of the telescopic oil top;

[0024] If it coincides with the telescopic oil top, the coincident telescopic oil top is determined as the target oil top, and the resultant force to be received is determined as the output value of the target oil top;

[0025] If it does not coincide with the telescopic oil top, the two telescopic oil tops adjacent to the resultant force to be received are determined as the target oil tops; and the component of the resultant force to be received on the target oil top is obtained as the output value of the target oil top.

[0026] In a possible design, the resultant force to be applied to the second steel pipe pile and the direction of the resultant force to be applied are determined according to the cross-sectional trajectory; including:

[0027] The direction of the resultant force to be applied is obtained according to the opposite direction of the major semi-axis of the cross-sectional trajectory deviating from the preset standard trajectory; wherein the preset standard trajectory is a circular trajectory with the axis as the origin and the radius of the second steel pipe pile as the radius;

[0028] The difference between the semi-major axis and the radius of the second steel pipe pile is obtained, and the product of the difference and the preset output coefficient is determined as the resultant force to be received.

[0029] In a possible design, after determining the target oil top and the output value of the target oil top according to the cross-sectional trajectory, the method further includes:

[0030] Determine whether the pile slips according to the sinking speed of the second steel pipe pile, and if the output value is greater than the first preset output value, update the output value to the first preset output value;

[0031] When the lowering height of the second steel pipe pile is greater than the second preset height and less than the fourth preset height, determining whether the output value is greater than the second preset output value, and updating the output value to the second preset output value;

[0032] If the lowering height is greater than the fourth preset height, it is determined whether the output value is greater than the third preset output value, and the output value is updated to the third preset output value.

[0033] In a third aspect, an embodiment of the present application provides a steel pipe pile construction method based on an internal stable pile platform, comprising:

[0034] Performing a ring cut on the first steel pipe pile; wherein the first steel pipe pile is a steel pipe pile successfully driven at sea; and the ring cut is performed at a position where the first steel pipe pile is exposed above the water surface;

[0035] Installing an inner stabilizing pile platform on the annular cut of the first steel pipe pile;

[0036] Lowering the second steel pipe pile, feeding and driving the second steel pipe pile; adjusting the verticality of the second steel pipe pile according to the control method;

[0037] Recover the internal stabilizing pile platform.

[0038] The embodiments of the present application provide an internal stabilizing pile platform, a method for controlling the verticality of a steel pipe pile, and a method for constructing a steel pipe pile, wherein the internal stabilizing pile platform includes a base, a top cover, a main deflection-correcting oil top group, and a distance measuring device; the base is fixed to the bottom end of the top cover, and the main deflection-correcting oil top group and the distance measuring device are arranged on the top cover. The method fixes the base to the top of the internal steel pipe pile, and when lowering the external steel pipe pile, the first telescopic oil top in the main deflection-correcting oil top group or the second telescopic oil top in the spare deflection-correcting oil top group extends out to resist the inner wall of the external steel pipe pile, and the relative distance between the first steel pipe pile and the second steel pipe pile can be determined by the distance measuring device, and the position of the second steel pipe pile can be adjusted by adjusting the output of the first telescopic oil top to complete precise piling. Compared with the existing stabilizing pile platform, the method provided by the present application does not require the construction of an external stabilizing pile platform, can save manpower and material resources, greatly shorten the construction period, and can achieve continuous and automatic control of the verticality of the steel pipe pile foundation construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0040] Figure 1 A schematic diagram of a use scenario of an internal stabilization pile platform provided in an embodiment of the present application;

[0041] Figure 2 A schematic diagram of an internal stabilization pile platform provided in an embodiment of the present application when in use;

[0042] Figure 3 A schematic diagram of the construction position of steel pipe piles during use of an internal stabilization pile platform provided in an embodiment of the present application;

[0043] Figure 4 A schematic diagram of the structure of an internal stabilization pile platform provided in an embodiment of the present application;

[0044] Figure 5 Provide a method for implementing the present application Figure 3 Overlooking Figure 1 ;

[0045] Figure 6 Provide a method for implementing the present application Figure 3 Overlooking Figure 2 ;

[0046] Figure 7 A process of a steel pipe pile verticality control method based on an internal stable pile platform provided in an embodiment of the present application Figure 1 ;

[0047] Figure 8A process of a steel pipe pile verticality control method based on an internal stable pile platform provided in an embodiment of the present application Figure 2 ;

[0048] Fig. 9 A schematic diagram of the principle of the verticality acquisition method provided in an embodiment of the present application;

[0049] Fig.10 A schematic diagram of the principle of a method for obtaining the resultant force and output value provided in an embodiment of the present application;

[0050] Fig.11 A process of a steel pipe pile construction method based on an internal stable pile platform provided in an embodiment of the present application Figure 1 ;

[0051] Fig.12 A process of a steel pipe pile construction method based on an internal stable pile platform provided in an embodiment of the present application Figure 2 ;

[0052] Fig.13 A schematic diagram of the structure of an internal stabilization pile platform control device provided in an embodiment of the present application;

[0053] Fig.14 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0054] Description of reference numerals:

[0055] 110-first steel pipe pile; 120-second steel pipe pile; 130-bearing layer; 140-mud surface; 150-water surface;

[0056] 210-steel pipe pile body; 220-fixing piece; 230-main lifting lug; 240-slot structure;

[0057] 300-internal stable pile platform; 310-base; 320-top cover; 330-first telescopic oil top; 340-second telescopic oil top; 350-roller; 360-distance sensor; 370-oil top power box; 380-total station;

[0058] 910-first rectangle; 920-second rectangle; 930-dashed line;

[0059] 1010-first track; 1020-second track;

[0060] 1300 - control device; 1310 - initialization module; 1320 - verticality acquisition module; 1330 - execution module; 1340 - loop module;

[0061] 1400 - electronic device; 1401 - processor; 1402 - memory; 1403 - communication component; 1404 - bus. DETAILED DESCRIPTION

[0062] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0063] In the description of this application, 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, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] In the description of the present application, it should be understood that the terms used include "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. to indicate orientation or positional relationships. They are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the equipment or method of the present application. They are not used to indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0065] In the specification and claims of the present application and the above-mentioned drawings, the terms "first", "second", and "third" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the objects used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0066] Figure 1A schematic diagram of a use scenario of an internal stabilizing pile platform provided in an embodiment of the present application; comprising a first steel pipe pile 110 and a second steel pipe pile 120, wherein the first steel pipe pile 110 is a foundation pile, and may also be the above-mentioned nested steel pipe pile, and the second steel pipe pile 120 is the above-mentioned nested steel pipe pile; when in use, it is necessary to cut the portion of the first steel pipe pile 110 above the water surface 150 in a ring, and then fix the internal stabilizing pile platform 300 provided in the embodiment of the present application at the ring cut, and the second steel pipe pile 120 is sleeved on the outer layer of the first steel pipe pile 110 by the method provided in the embodiment of the present application, and under normal working conditions, its main lifting ear 230 is on the mud surface 140.

[0067] Furthermore, if the nested steel pipe piles need to be updated, the nested steel pipe piles are used as the first steel pipe piles 110, and new second steel pipe piles 120 are continuously nested according to the internal stabilizing pile platform and method provided in the embodiments of the present application.

[0068] As an embodiment, the nested steel pipe pile includes a steel pipe pile body 210, and a slot structure 240 is fixed on the inner wall of the steel pipe pile body 210. The slot structure 240 can be fixed on the inner wall of the steel pipe pile body 210 through a fixing member 220; the inner diameter of the steel pipe pile body 210 is larger than the outer diameter of the foundation steel pipe pile, and the slot structure 240 is used to be clamped on the main lifting ear 230 of the foundation steel pipe pile.

[0069] Figure 2 A schematic diagram of an internal stabilization pile platform provided in an embodiment of the present application when in use; Figure 3 A schematic diagram of the construction position of a steel pipe pile during use of an internal stabilization pile platform provided in an embodiment of the present application, such as Figure 2 , it is necessary to fix the inner stabilizing pile platform 300 provided in the embodiment of the present application at the annular cut after the annular cut, such as Figure 3 Through the internal stabilizing pile platform 300, the inclination of the second steel pipe pile 120 is corrected during the process of lowering, feeding and driving the second steel pipe pile 120, and the second steel pipe pile 120 is guided to enter the water surface 150, the mud surface 140, and the bearing layer 130 in sequence until the construction is completed; considering the needs of different stages, the stability and safety of the construction are guaranteed, and precise positioning is achieved.

[0070] In the prior art, a pile stabilizing platform is usually used for pile driving, which can also be used in the above scenario, for sleeve-connecting the second steel pipe pile 120 on the first steel pipe pile 110, and the pile stabilizing platform includes positioning piles at four corners. The four positioning piles are interconnected by a truss structure to carry the platform. A single pile passage opening for the passage of a single pile is provided at the center of the pile stabilizing platform, and a plurality of hydraulic jacks are arranged in a circular array with the single pile passage opening as the center of the circle; when the single pile is arranged at the single pile passage opening, the hydraulic jack drives the top end of the support rod to move toward the single pile, and a roller is provided at the end of the hydraulic jack, which facilitates the movement and lowering of the steel pipe pile after positioning, and adjusting the horizontality and verticality of the single pile. The construction of the pile stabilizing platform is more complicated, and the above-mentioned steel pipe pile sleeve scheme is very inconvenient, and continuous construction is impossible, and piling needs to be stopped continuously to observe the verticality.

[0071] In view of the above-mentioned defects, the present application provides an internally stable pile platform and its control method, construction method, equipment, medium and procedure. The present application is used to sleeve the second steel pipe pile 120 on the first steel pipe pile 110 to update the first steel pipe pile 110.

[0072] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0073] Figure 4 A schematic diagram of the structure of an internal stabilization pile platform provided in an embodiment of the present application; Figure 5 Provide a method for implementing the present application Figure 4 Overlooking Figure 1 ; Figure 6 Provide a method for implementing the present application Figure 4 Overlooking Figure 2 .

[0074] refer to Figure 4~Figure 6 The embodiment of the present application provides an internal stabilization pile platform 300, comprising a base 310, a top cover 320, a main deviation correction oil top group and a distance measuring device; wherein:

[0075] The base 310 is fixed to the bottom end of the top cover 320, and the diameter of the base 310 is smaller than the diameter of the top cover 320;

[0076] The main deviation-correcting oil top group includes at least four first telescopic oil tops 330, which are distributed on the edge of the top cover 320 and telescope outwards. Rollers 350 are fixed to the telescopic ends of the first telescopic oil tops 330; the first telescopic oil tops 330 are arranged on the same cross section of the top cover 320;

[0077] The distance measuring device is disposed on the top cover 320 , and is used to measure the distance between the top cover 320 and the inner wall of the second steel pipe pile 120 .

[0078] Specifically, when performing the steel pipe pile sleeve operation, the first steel pipe pile 110 is circumscribed, and the base 310 in the internal stabilizing pile platform 300 is interference fit with the circumcision, and the second steel pipe pile 120 is lowered, and the first telescopic oil top 330 in the main deviation correction oil top group is used to press against the inner wall of the second steel pipe pile 120; the distance information between the first steel pipe pile 110 and the first steel pipe pile 110 is obtained by the distance measuring equipment, and the output of the first telescopic oil top 330 is adjusted according to the distance information to adjust the position of the second steel pipe pile 120, thereby completing the precise piling of the second steel pipe pile 120.

[0079] Optionally, the first telescopic oil top 330 may be fixed on the top of the top cover 320 , or may be fixed on the outer wall of the top cover 320 .

[0080] Specifically, the first telescopic oil tops 330 are evenly distributed along the edge of the top cover 320 , and the telescopic direction of the first telescopic oil tops 330 is along the radial direction of the top cover 320 .

[0081] Specifically, the oil top power box 370 corresponding to the telescopic oil top may also be fixed on the top cover 320 .

[0082] Specifically, the base 310 and the top cover 320 are both cylindrical, the base 310 can be interference fit with the inner wall of the first steel pipe pile 110 , the diameter of the top cover 320 is larger than the diameter of the base 310 , and the diameter of the top cover 320 is smaller than the diameter of the second steel pipe pile 120 .

[0083] Furthermore, the embodiment of the present application also includes a spare correcting oil top group, which includes at least four second telescopic oil tops 340, which are distributed on the edge of the top cover 320 and telescope outward, and the telescopic end of the second telescopic oil top 340 is fixed with a roller 350; the second telescopic oil top 340 is arranged on the same cross-section of the top cover 320.

[0084] Specifically, similar to the main correcting oil top group, the second telescopic oil top 340 can be fixed on the top of the top cover 320, or on the outer wall of the top cover 320; the first telescopic oil top 330 is evenly distributed along the edge of the top cover 320, and the telescopic direction of the first telescopic oil top 330 is along the radial direction of the top cover 320.

[0085] Specifically, the spare correcting oil top group is used to work using the telescopic oil top of the spare correcting oil top group when the main correcting oil top group fails.

[0086] As an implementation mode, the main correcting oil top group and the spare oil top group can be set on the same section of the top cover 320, or can be set on sections at different heights. When the first telescopic oil top 330 in the main correcting oil top group fails, it is replaced by the four second telescopic oil tops 340 in the spare correcting oil top group.

[0087] As another embodiment, the main correcting oil top group and the spare oil top group are arranged on cross sections at different heights of the top cover 320, and the four second telescopic oil tops 340 are respectively located in the same position as the four first telescopic oil tops 330. When the first telescopic oil top 330 fails, the second telescopic oil top 340 in the same position is used to replace it.

[0088] It should be noted that if the above-mentioned another embodiment is adopted, the distance between the first telescopic oil top 330 and the second telescopic oil top 340 in the same position in the main correction oil top group and the spare oil top group needs to be as small as possible to avoid measurement errors in subsequent curve fitting.

[0089] Further optionally, the first telescopic oil top 330 and the second telescopic oil top 340 adopt single-acting hydraulic cylinders, load-sensitive hydraulic cylinders, etc.

[0090] Specifically, according to the application scenario of the total telescopic oil jack used in the embodiment of the present application, when the external load on the telescopic cylinder is greater than the thrust of the telescopic oil jack, the telescopic cylinder needs to retract to maintain the force balance of the second steel pipe pile 120 when different telescopic oil jacks exert force in different directions; the use of a single-acting hydraulic cylinder or a load-sensitive hydraulic cylinder can meet the above conditions.

[0091] The following is a description of the ranging equipment:

[0092] The distance measuring device is a total station 380 or a sensor group, which can be used to measure the distance between the top cover 320 and the inner wall of the second steel pipe pile 120 when the second steel pipe pile 120 is lowered. Figure 5 This is a block diagram of the total station 380 as a distance measuring device; Figure 6 This is a structural diagram of using the sensor group as a distance measuring device.

[0093] Specifically, the total station 380 is fixed at the center of the top cover 320 , and the distance between the total station 380 and the inner wall of the second steel pipe pile 120 in different directions can be obtained by continuously rotating and scanning the probe of the total station 380 .

[0094] The sensor group is described in detail below:

[0095] Optionally, the distance sensor 360 can be fixed to the extended end of the telescopic oil top, or can be fixed to the top cover 320, and the distance sensor 360 is used to obtain the distance between the distance sensor 360 and the inner wall of the second steel pipe pile 120;

[0096] Specifically, with the axis as the center, five distance measuring sensors 360 are respectively fixed at different positions of the top cover 320 .

[0097] Furthermore, in order to facilitate subsequent measurement and calculation, the four distance measuring sensors 360 correspond to one first telescopic oil top 330 respectively, and each distance measuring sensor 360 has the same orientation as the corresponding first telescopic oil top 330 .

[0098] Furthermore, a platform lifting lug is fixed on the top cover 320 to facilitate lifting and recovery of the inner pile stabilizing platform 300.

[0099] The embodiment of the present application provides an internal stabilization pile platform 300, including a base 310, a top cover 320, a main deviation correction oil top group and a sensor group; and has the following technical effects:

[0100] When the steel pipe pile sleeve construction is performed in the embodiment of the present application, the base 310 is fixed on the top of the internal steel pipe pile. When the external steel pipe pile is lowered, the first telescopic oil top 330 in the main correcting oil top group or the second telescopic oil top 340 in the spare correcting oil top group is extended to resist the inner wall of the external steel pipe pile. The relative distance between the first steel pipe pile 110 and the second steel pipe pile 120 can be determined by the distance measuring equipment, and the position of the second steel pipe pile 120 can be adjusted by adjusting the output of the first telescopic oil top 330 to complete precise piling.

[0101] The spare correcting oil jack group is used to continue construction by using the telescopic oil jack of the spare correcting oil jack group when the main correcting oil jack group fails, so as to avoid repeated construction and delay the construction period.

[0102] Compared with the existing pile stabilization platform, the method provided by the present application does not require the construction of an external pile stabilization platform, which can save manpower and material resources, greatly shorten the construction period, and can realize automatic control of the verticality of the steel pipe pile foundation construction.

[0103] Figure 7 The process of a method for controlling the verticality of a steel pipe pile based on an internal stable pile platform provided in this application is as follows: Figure 1 This method is used to control the above-mentioned internal stabilizing pile platform, and its purpose is to adjust the inclination direction of the second steel pipe pile during the lowering process of the second steel pipe pile to ensure that the verticality of the second steel pipe pile is not greater than the maximum verticality required by the construction.

[0104] like Figure 7 As shown, the method is used for the controller of the above-mentioned internally stabilized pile platform, wherein the controller is used to control the telescopic oil top and receive the distance information obtained by the distance measuring device. The method includes:

[0105] S710, when the second steel pipe pile is lowered to a first preset height, the telescopic oil top is extended with an initial force; the first preset height is the lowering height when the inner stabilizing pile platform enters the second steel pipe pile.

[0106] Specifically, when the second steel pipe pile is lowered to the first preset height, the four telescopic oil caps all extend outward with an initial force to press against the inner wall of the second steel pipe pile.

[0107] Specifically, the initial force is an artificial preset value, which can make the telescopic oil top press against the inner wall of the second steel pipe pile, perform preliminary positioning of the second steel pipe pile, and prevent the second steel pipe pile from being lowered too quickly.

[0108] S720. When the second preset height is placed under the second steel pipe pile, the cross-sectional trajectory of the inner wall of the second steel pipe pile is fitted by the distance measuring equipment, and the verticality of the second steel pipe pile is determined according to the cross-sectional trajectory; the second preset height is the height of the second steel pipe pile when it enters the mud surface.

[0109] Specifically, after the second steel pipe pile enters the mud surface, the second steel pipe pile continues to sink by the pile driver; during the sinking process, the verticality of the second steel pipe pile needs to be monitored, and the second steel pipe pile needs to be corrected according to the verticality.

[0110] Specifically, since the second steel pipe pile may have an inclination angle, its cross section will not always be a standard circle. The cross section of the inner wall of the second steel pipe pile is fitted according to the ellipse equation to obtain the cross section trajectory; the verticality of the second steel pipe pile can be determined through the cross section trajectory.

[0111] Specifically, the distance measuring device is a total station or a sensor group; both can obtain the angles and corresponding distances of multiple points on the inner wall of the second steel pipe pile; and obtain at least 5 points to fit the cross-sectional trajectory of the inner wall of the second steel pipe pile.

[0112] S730, if the verticality is greater than the preset verticality, determine the target oil top and the output value of the target oil top according to the cross-section trajectory; and correct the position of the second steel pipe pile according to the target oil top and the output value of the target oil top;

[0113] Specifically, the cross-sectional trajectory is compared with the preset standard trajectory to determine the target oil top and the output value of the target oil top, and the corresponding output value is applied to the target oil top to complete the correction of the second steel pipe pile.

[0114] S740, after a preset time period or a preset height period, return to the step of fitting the cross-sectional trajectory of the inner wall of the second steel pipe pile by the distance measuring device until the lowering height of the second steel pipe pile reaches a third preset height.

[0115] Specifically, after the second steel pipe pile enters the mud surface, steps S720 to S740 are repeated until the construction is completed. The third preset height is the lowering height when the second steel pipe pile is connected to the first steel pipe pile.

[0116] The embodiment of the present application provides a method for controlling the verticality of a steel pipe pile based on an internal stabilizing pile platform. When the second steel pipe pile is lowered to the internal stabilizing pile platform, the telescopic oil top is extended with an initial force; when the second steel pipe pile is lowered into the mud surface, the cross-sectional trajectory of the inner wall of the second steel pipe pile is fitted by a distance measuring device to determine the verticality of the second steel pipe pile; when the verticality is greater than the preset verticality, the target oil top and the output value of the target oil top are determined; the position of the second steel pipe pile is corrected according to the target oil top and the output value of the target oil top. The embodiment of the present application has the following technical effects:

[0117] The method can monitor the cross-sectional trajectory and verticality of the second steel pipe pile after the second steel pipe pile enters the mud surface, and determine the target oil top and the target oil top force value according to the cross-sectional trajectory and the verticality; correct the position of the second steel pipe pile according to the target oil top and the target oil top force value, thereby completing the steel pipe pile socketing project. Compared with the existing pile stabilizing platform, the method provided by the present application does not require the construction of a pile stabilizing platform outside the steel pipe pile, can save manpower and material resources, greatly shorten the construction period, and can realize automatic control of the verticality of the steel pipe pile foundation construction.

[0118] Figure 8 The process of a method for controlling the verticality of a steel pipe pile based on an internal stable pile platform provided in this application is as follows: Figure 2 .

[0119] like Figure 8 As shown, the method is used for the controller of the above-mentioned internally stabilized pile platform, wherein the controller is used to control the telescopic oil top and receive the distance information obtained by the distance measuring device. The method includes:

[0120] S810, when the second steel pipe pile is lowered to a first preset height, the telescopic oil top is extended with an initial force; the first preset height is the height when the inner stabilizing pile platform enters the second steel pipe pile.

[0121] Specifically, the telescopic oil tops are four first telescopic oil tops of a main correcting oil top group, or four second telescopic oil tops of a spare correcting oil top group.

[0122] Specifically, the initial force is an artificial preset value, which can make the telescopic oil top press against the inner wall of the second steel pipe pile, perform preliminary positioning of the second steel pipe pile, and prevent the second steel pipe pile from being lowered too quickly.

[0123] In some embodiments, the initial force is no greater than 10% of the rated output value, where the rated output value is the rated output value calibrated by the telescopic oil jack.

[0124] Specifically, in each group of telescopic oil tops, adjacent telescopic oil tops are arranged at 90 degrees.

[0125] S820. When the second preset height is placed under the second steel pipe pile, the coordinate points of the inner wall of the second steel pipe pile on the preset cross-section obtained by the ranging device are obtained on the preset coordinate system, and the cross-section trajectory is obtained according to the coordinate points, wherein the origin of the preset coordinate system is the axis of the first steel pipe pile, and the cross-section trajectory is an ellipse.

[0126] Specifically, the distance measuring device is a total station or a sensor group, the total station is fixed at the center of the top cover, and the distance between the total station and the inner wall of the second steel pipe pile in different directions can be obtained by continuously rotating and scanning the probe of the total station. Alternatively, all the distance measuring sensors in the sensor group can obtain the above distance.

[0127] As an implementation mode, a polar coordinate system or a plane coordinate system is established as a preset coordinate system with the axis of the first steel pipe pile on the cross section as the origin, and the corresponding coordinate point can be determined according to the preset angle and corresponding distance of the ranging sensor.

[0128] Specifically, according to the ellipse equation formula, an ellipse trajectory can be fitted according to at least 5 coordinate points.

[0129] Furthermore, existing data tools all perform cross-section trajectory fitting based on coordinate points, for example:

[0130] fitEllipse function in OpenCV library.

[0131] S830. Determine the verticality of the second steel pipe pile according to the cross-sectional trajectory.

[0132] Specifically, the first ratio is obtained according to the ratio of the second steel pipe pile to twice the major semi-axis, and the verticality is obtained according to the difference between 1 and the square of the first ratio, wherein the major semi-axis is the major semi-axis of the cross-sectional trajectory.

[0133] Specifically, Fig. 9 A schematic diagram of the principle of the verticality acquisition method provided in the embodiment of the present application; Fig. 9 The figure shows a side view of the second steel pipe pile, wherein the first rectangle 910 is a local longitudinal section of the second steel pipe pile when the verticality is 0, and the second rectangle 920 is an actual local longitudinal section of the second steel pipe pile; the dotted line 930 is a cross section for illustrating the section trajectory, wherein a is the major semi-axis size of the section trajectory, D is the diameter of the second steel pipe pile, is the cutting angle of the second steel pipe pile. According to its geometric relationship, it can be known that:

[0134]

[0135]

[0136] in, is the verticality of the second steel pipe pile, It is the vertical height of the second steel pipe pile sinking within a certain period of time.

[0137] Specifically, the method for obtaining the lowering height of the second steel pipe pile is as follows: Fig. 9 , the length Δl of the second steel pipe pile can be obtained at each lowering stage, for example, at each moment (the following formula is represented by i), and the lowering height of this stage can be obtained according to Δl ; The total lowering height is the sum of the lowering heights in all stages.

[0138] As an embodiment, it can be obtained according to the following formula:

[0139]

[0140]

[0141] Where X is the lowering height.

[0142] S840, determine whether the verticality is greater than the preset verticality, if so, execute S850; if not, return to S820~840, continue to update the verticality, and execute S850 when it is greater.

[0143] Specifically, the preset verticality is the maximum verticality required by the construction standard; generally, the preset verticality is 3‰.

[0144] Specifically, the second steel pipe pile is continuously lowered for piling. If the verticality is greater than the preset verticality, it may return to S820 after a time period or a height period of lowering, and re-perform cross-section trajectory fitting, obtain verticality, and perform verticality judgment through S820-840. After the verticality is greater than the preset verticality, S850 is executed.

[0145] S850: Determine the target oil top and the output value of the target oil top according to the cross-sectional trajectory.

[0146] As an implementation mode, it can be implemented specifically through S851 to S854. The method includes:

[0147] S851. Determine the resultant force that the second steel pipe pile should be subjected to and the direction of the resultant force based on the cross-sectional trajectory.

[0148] Specifically, the direction of the resultant force is obtained according to the direction opposite to the deviation of the major semi-axis of the cross-sectional trajectory from the preset standard trajectory; the difference between the major semi-axis and the radius of the second steel pipe pile is obtained, and the product of the difference and the preset output coefficient is determined as the resultant force.

[0149] Specifically, the preset standard trajectory is a circular trajectory with the axis as the origin and the radius of the second steel pipe pile as the radius.

[0150] Fig.10The schematic diagram of the principle of the method for obtaining the resultant force and output value provided in the embodiment of the present application. Fig.10 As shown, the preset coordinate system is a plane coordinate system with the axis point of the first steel pipe pile as the origin, and the locations of the four telescopic oil caps as the positive and negative axes of the x-axis and the positive and negative axes of the y-axis.

[0151] According to Fig.10 , the first trajectory 1010 is the elliptical cross-section trajectory obtained according to S840; the second trajectory 1020 is the preset standard trajectory, and the major semi-axis of the elliptical cross-section trajectory is offset to the fourth quadrant relative to the preset standard trajectory, and the opposite direction is the direction of the resultant force.

[0152] like Fig.10 , the calculation formula for the resultant force is:

[0153]

[0154] Among them, F is the resultant force, D is the diameter of the second steel pipe pile, a is the major axis size of the cross-sectional trajectory, For safety reasons, the preset output coefficient is set to:

[0155]

[0156] in, The rated output value of the telescopic oil top. It is the value of the major semi-axis of the cross-section trajectory when the verticality reaches 3‰.

[0157] S852, determine whether the direction of the resultant force coincides with the direction of the telescopic oil top, where the direction of the telescopic oil top is the extension direction of the telescopic oil top; if it coincides with the telescopic oil top, execute S853; if it does not coincide with the telescopic oil top, execute S854.

[0158] Specifically, if the direction of the resultant force coincides with the direction of the telescopic oil top, the target oil top and the output value of the target oil top are determined through S853; otherwise, the target oil top and the output value of the target oil top are determined through S854.

[0159] S853, determining the overlapping telescopic oil top as the target oil top, and determining the resultant force to be received as the output value of the target oil top;

[0160] Specifically, when the direction of the resultant force coincides with the direction of the telescopic oil top, it is sufficient to adjust one of the telescopic oil tops, and the resultant force to be received is the output value of the target oil top.

[0161] S854, determining two telescopic oil tops adjacent to the resultant force to be received as target oil tops; obtaining the component of the resultant force to be received on the target oil tops as the output value of the target oil tops.

[0162] Specifically, Fig.10, that is, the direction of the resultant force does not coincide with the direction of the telescopic oil top. Since the target oil top is located on the x-axis and the y-axis, the resultant force is located in the second quadrant. The two telescopic oil tops that are adjacent to the resultant force are the telescopic oil top located on the positive half of the x-axis and the telescopic oil top located on the positive half of the y-axis, that is, the target oil top.

[0163] Furthermore, the component forces of the resultant force on the positive half axis of the x-axis and the positive half axis of the y-axis are the corresponding output values ​​of the target oil top; the calculation formula is:

[0164] F x =Fcosα

[0165] F y =Fsinα

[0166] Among them, F x is the component of the resultant force on the positive half axis of the x-axis, and the resultant force on F y is the component force on the positive half axis of the y-axis, and α is the angle between the resultant force and the positive half axis of the x-axis.

[0167] S860, judging whether the pile slip occurs according to the sinking speed of the second steel pipe pile, and if the output value is greater than the first preset output value, updating the output value to the first preset output value;

[0168] like Figure 3 In general working conditions, when the bottom of the second steel pipe pile sinks to between the mud layer 140 and the bearing layer 130, the pile is prone to slip.

[0169] Specifically, if the sinking speed is greater than a preset speed and can last for more than a preset time, it is determined that the pile is slipping.

[0170] As an implementation method, if the speed of the second steel pipe pile is greater than 5 cm / s for more than 3 consecutive seconds, the second steel pipe pile is judged to be slipping and the upper limit of the output needs to be reduced; the upper limit of the output at this time is the first preset output value.

[0171] Specifically, if the output value does not exceed the first preset output value, it remains unchanged; if it exceeds the first preset output value, the first preset output value is used as the output value.

[0172] As an embodiment, the first preset output value is set to 70%F 额 .

[0173] S870. When the lowering height of the second steel pipe pile is greater than the second preset height and less than the fourth preset height, determine whether the output value is greater than the second preset output value, and update the output value to the second preset output value; if the lowering height is greater than the fourth preset height, determine whether the output value is greater than the third preset output value, and update the output value to the third preset output value.

[0174] Specifically, the second preset height is the lowering height of the steel pipe pile when the bottom of the second steel pipe pile is located on the mud surface; the fourth preset height is the lowering height of the steel pipe pile when the bottom of the second steel pipe pile is located on the bearing layer.

[0175] Specifically, this step is used to control the upper limit of the force of the bottom of the second steel pipe pile entering the mud layer and the bearing layer.

[0176] As an embodiment, the second preset output value is set to 100%F 额 ; The third preset output value is set to 80%F 额 .

[0177] S880, correct the position of the second steel pipe pile according to the target oil top and the target oil top output value, return to S820 after a time period or a height cycle, and repeat S820-S880 until the lowering height of the second steel pipe pile reaches a third preset height.

[0178] Specifically, after the second steel pipe pile enters the mud surface, steps S820 to S880 are repeated until the construction is completed. The third preset height is the lowering height when the second steel pipe pile is connected to the first steel pipe pile.

[0179] The embodiment of the present application provides a method for controlling the verticality of a steel pipe pile based on an internal stable pile platform, which has the following technical effects:

[0180] Compared with the existing pile stabilizing platform, the method provided in the present application does not require the construction of a pile stabilizing platform outside the steel pipe pile, which can save manpower and material resources, greatly shorten the construction period, and achieve accurate socketing of the steel pipe pile.

[0181] The embodiment of the present application determines the entry of the second steel pipe pile into the water surface, mud surface, bearing layer, etc. according to the lowering height of the second steel pipe pile, fully considers the safety of the second steel pipe pile in different situations, sets the upper limit of the output, ensures the stability and safety of the construction, and realizes precise positioning.

[0182] The present application provides a method for constructing steel pipe piles based on an internal stable pile platform. Fig.11 and Fig.12 , the construction method comprises:

[0183] S1101. Circumcise a first steel pipe pile; wherein the first steel pipe pile is a steel pipe pile that has been successfully piled at sea; and the location of the circumcision is where the first steel pipe pile is exposed above the water surface.

[0184] Specifically, for current offshore projects, the cage of the first steel pipe pile needs to be removed before ring cutting, and the sand blanket, stones, etc. in the anti-scouring area of ​​the first steel pipe pile need to be cleared (riprap protection can take natural scouring into consideration).

[0185] Specifically, the circumferential cutting can be performed by flame cutting, and the circumferential cutting position can be located above the water surface.

[0186] S1102. Install an inner stabilizing pile platform on the annular cut of the first steel pipe pile.

[0187] Specifically, the inner stabilizing pile platform is installed by interference fit between the base and the annular cutout.

[0188] S1103, lowering the second steel pipe pile, feeding and driving the second steel pipe pile; adjusting the verticality of the second steel pipe pile according to the internal stabilizing pile platform; the method for adjusting the verticality of the second steel pipe pile according to the internal stabilizing pile platform is the above-mentioned method for controlling the verticality of steel pipe piles based on the internal stabilizing pile platform.

[0189] Specifically, the first steel pipe pile is located by the piling mother ship, and the second steel pipe pile is lifted; the pile transporting ship is used to transport the second steel pipe pile; the floating crane is stabilized beside the pile transporting ship, and the floating crane stabilizes the pile transporting ship between the piling mother ship and the floating crane, thereby stabilizing the pile transporting ship.

[0190] Specifically, the method for adjusting the verticality of the second steel pipe pile according to the internal stabilizing pile platform is the above-mentioned method for controlling the verticality of the steel pipe pile based on the internal stabilizing pile platform, which will not be described in detail here.

[0191] S1104. Recover the internal stabilizing pile platform.

[0192] Specifically, the inner stabilizing pile platform is hoisted and recovered through the hoisting platform lifting lugs.

[0193] Furthermore, the second steel pipe pile is inspected and accepted, and the piling mother ship is withdrawn.

[0194] The present embodiment provides a steel pipe pile construction method based on an internal stabilizing pile platform, the implementation principle and technical effect of which are similar to the above-mentioned steel pipe pile verticality control method based on an internal stabilizing pile platform, and this embodiment will not be described in detail here.

[0195] Fig.13 A schematic diagram of the structure of an internal stabilization pile platform control device provided in this application, such as Fig.13 As shown, the control device 1300 provided in this embodiment includes:

[0196] The initialization module 1310 is used to extend the telescopic oil top with an initial force when the second steel pipe pile is lowered to a first preset height; the first preset height is the lowering height when the inner stabilizing pile platform enters the second steel pipe pile.

[0197] The verticality acquisition module 1320 is used to fit the cross-sectional trajectory of the inner wall of the second steel pipe pile through the distance measuring equipment when placing the second preset height under the second steel pipe pile, and determine the verticality of the second steel pipe pile according to the cross-sectional trajectory; the second preset height is the height when the second steel pipe pile enters the mud surface.

[0198] The execution module 1330 is used to determine the target oil top and the output value of the target oil top according to the cross-sectional trajectory when the verticality is greater than the preset verticality; and correct the position of the second steel pipe pile according to the target oil top and the output value of the target oil top.

[0199] The loop module 1340 is used to return to the step of fitting the cross-sectional trajectory of the inner wall of the second steel pipe pile through the distance measuring device after a preset time period or a preset height period, until the lowering height of the second steel pipe pile reaches a third preset position.

[0200] Furthermore, the verticality acquisition module 1320 is specifically used for:

[0201] The coordinate points of the inner wall of the second steel pipe pile on the preset cross section obtained by the ranging device on the preset coordinate system are obtained, and the cross-section trajectory is obtained according to the coordinate points, wherein the origin of the preset coordinate system is the axis of the first steel pipe pile, and the cross-section trajectory is an ellipse.

[0202] Furthermore, the verticality acquisition module 1320 is further configured to:

[0203] The first ratio is obtained according to the ratio of the second steel pipe pile to twice the major semi-axis, and the verticality is obtained according to the difference between 1 and the square of the first ratio, wherein the major semi-axis is the major semi-axis of the cross-sectional trajectory.

[0204] Furthermore, the execution module 1330 is specifically configured to:

[0205] Determine the resultant force that the second steel pipe pile should be subjected to and the direction of the resultant force according to the cross-section trajectory;

[0206] Determine whether the direction of the resultant force coincides with the direction of the telescopic oil top, where the direction of the telescopic oil top is the extension direction of the telescopic oil top;

[0207] If it coincides with the telescopic oil top, the coincident telescopic oil top is determined as the target oil top, and the resultant force to be received is determined as the output value of the target oil top;

[0208] If it does not coincide with the telescopic oil top, the two telescopic oil tops adjacent to the resultant force to be received are determined as the target oil tops; and the component of the resultant force to be received on the target oil top is obtained as the output value of the target oil top.

[0209] Furthermore, the execution module 1330 is further configured to:

[0210] The direction of the resultant force to be applied is obtained according to the opposite direction of the major semi-axis of the cross-sectional trajectory deviating from the preset standard trajectory; wherein the preset standard trajectory is a circular trajectory with the axis as the origin and the radius of the second steel pipe pile as the radius;

[0211] The difference between the semi-major axis and the radius of the second steel pipe pile is obtained, and the product of the difference and the preset output coefficient is determined as the resultant force to be received.

[0212] Furthermore, the execution module 1330 is further configured to:

[0213] Determine whether the pile slips according to the sinking speed of the second steel pipe pile, and if the output value is greater than the first preset output value, update the output value to the first preset output value;

[0214] When the lowering height of the second steel pipe pile is greater than the second preset height and less than the fourth preset height, determining whether the output value is greater than the second preset output value, and updating the output value to the second preset output value;

[0215] If the lowering height is greater than the fourth preset height, it is determined whether the output value is greater than the third preset output value, and the output value is updated to the third preset output value.

[0216] The present embodiment provides an internal stabilization pile platform control device, which can execute the control method provided by the above method embodiment. Its implementation principle and technical effect are similar, and will not be described in detail in this embodiment.

[0217] Fig.14 This is a schematic diagram of the structure of an electronic device provided in this application. Fig.14 As shown, the electronic device 1400 provided in this embodiment includes: at least one processor 1401 and a memory 1402. Optionally, the device 1400 also includes a communication component 1403. The processor 1401, the memory 1402 and the communication component 1403 are connected via a bus 1404.

[0218] In a specific implementation process, at least one processor 1401 executes the computer-executable instructions stored in the memory 1402, so that at least one processor 1401 executes the above-mentioned control method.

[0219] The specific implementation process of the processor 1401 can be found in the above-mentioned control method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

[0220] In the above embodiments, it should be understood that the processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the invention can be directly implemented as a hardware processor, or can be implemented by a combination of hardware and software modules in the processor.

[0221] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (NVM), such as at least one disk storage.

[0222] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of this application is not limited to only one bus or one type of bus.

[0223] The present application also provides a computer program product, including a computer program, which implements the above-mentioned control method when executed by a processor.

[0224] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above-mentioned control method is implemented.

[0225] The above-mentioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general or special-purpose computer.

[0226] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (Application Specific Integrated Circuits, referred to as: ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0227] The division of units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0228] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0229] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0230] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0231] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

[0232] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art not disclosed by the present invention, are not limited to the precise structure described above and shown in the drawings, and may be modified and changed in various ways without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An internally stabilized pile platform, characterized in that: It includes a base, a top cover, a main deviation correction oil top group and a distance measuring device; among which: The base is fixed to the bottom end of the top cover, and the diameter of the base is smaller than the diameter of the top cover; The main deviation-correcting oil top group includes at least four first telescopic oil tops, which are distributed on the edge of the top cover and telescope outwards, and rollers are fixed to the telescopic ends of the first telescopic oil tops; the first telescopic oil tops are arranged on the same cross section of the top cover; The distance measuring device is arranged on the top cover, and is used to measure the distance between the top cover and the inner wall of the second steel pipe pile.

2. The internally stabilized pile platform according to claim 1, characterized in that: It also includes a spare correcting oil top group, which includes at least four second telescopic oil tops, which are distributed on the edge of the top cover and telescope outward, and rollers are fixed to the telescopic ends of the second telescopic oil tops; the second telescopic oil tops are arranged on the same cross section of the top cover.

3. The internally stabilized pile platform according to claim 1, characterized in that: The distance measuring device is a total station or a sensor group; The sensor group includes at least five distance measuring sensors, and the distance measuring sensors are fixed on the same cross section of the top cover.

4. A method for controlling the verticality of a steel pipe pile based on an internal stable pile platform, characterized in that: Used to control the internally stabilized pile platform according to any one of claims 1 to 3, the method comprising: When the second steel pipe pile is lowered to a first preset height, the telescopic oil top is extended with an initial force; the first preset height is the lowering height of the inner stabilizing pile platform when it enters the second steel pipe pile; When the second steel pipe pile is placed at a second preset height, the cross-sectional trajectory of the inner wall of the second steel pipe pile is fitted by a distance measuring device, and the verticality of the second steel pipe pile is determined according to the cross-sectional trajectory; the second preset height is the height of the second steel pipe pile when it enters the mud surface; If the verticality is greater than a preset verticality, determining a target oil top and an output value of the target oil top according to the cross-sectional trajectory; and correcting the position of the second steel pipe pile according to the target oil top and the output value of the target oil top; After a preset time period or a preset height period, the step of fitting the cross-sectional trajectory of the inner wall of the second steel pipe pile by the distance measuring device is returned to until the lowering height of the second steel pipe pile reaches a third preset position.

5. The method according to claim 4, characterized in that The step of fitting the cross-sectional trajectory of the inner wall of the second steel pipe pile by using the distance measuring device comprises: Obtain coordinate points of multiple inner walls of the second steel pipe pile on the preset cross section obtained by the ranging device in the preset coordinate system, and obtain the cross-section trajectory according to the coordinate points, wherein the origin of the preset coordinate system is the axis of the first steel pipe pile, and the cross-section trajectory is an ellipse.

6. The method according to claim 5, characterized in that The determining the verticality of the second steel pipe pile according to the cross-sectional trajectory comprises: The first ratio is obtained according to the ratio of the second steel pipe pile to twice the major semi-axis, wherein the major semi-axis is the major semi-axis of the cross-sectional trajectory; and the verticality is obtained according to the difference between 1 and the square of the first ratio.

7. The method according to claim 5, characterized in that The step of determining the target oil top and the target oil top force value according to the cross-sectional trajectory includes: Determine the resultant force that the second steel pipe pile should be subjected to and the direction of the resultant force according to the cross-sectional trajectory; Determining whether the direction of the resultant force coincides with the direction of the telescopic oil top, wherein the direction of the telescopic oil top is the extension direction of the telescopic oil top; If it coincides with the telescopic oil top, determining the coincident telescopic oil top as the target oil top, and determining the resultant force to be received as the output value of the target oil top; If it does not overlap with the telescopic oil top, determine the two telescopic oil tops adjacent to the resultant force to be received as the target oil tops; and obtain the component of the resultant force to be received on the target oil tops as the output value of the target oil top.

8. The method according to claim 7, characterized in that The step of determining the resultant force to be applied to the second steel pipe pile and the direction of the resultant force to be applied according to the cross-sectional trajectory comprises: The direction of the resultant force to be applied is obtained according to the direction opposite to the deviation of the major semi-axis of the cross-sectional trajectory from the preset standard trajectory; wherein the preset standard trajectory is a circular trajectory with the axis as the origin and the radius of the second steel pipe pile as the radius; The difference between the semi-major axis and the radius of the second steel pipe pile is obtained, and the product of the difference and a preset output coefficient is determined as the resultant force to be received.

9. The method according to claim 5, characterized in that After determining the target oil top and the target oil top force value according to the cross-sectional trajectory, the method further includes: Determining whether the pile slips according to the sinking speed of the second steel pipe pile, and if the output value is greater than the first preset output value, updating the output value to the first preset output value; When the lowering height of the second steel pipe pile is greater than the second preset height and less than the fourth preset height, determining whether the output value is greater than the second preset output value, and updating the output value to the second preset output value; If the lowering height is greater than the fourth preset height, it is determined whether the output value is greater than the third preset output value, and the output value is updated to the third preset output value.

10. A steel pipe pile construction method based on an internal stable pile platform, characterized in that: include: Performing ring cutting on the first steel pipe pile; wherein the first steel pipe pile is a steel pipe pile successfully driven at sea; the ring cutting position is located at the position where the first steel pipe pile is exposed above the water surface; Installing an inner stabilizing pile platform on the annular cut of the first steel pipe pile; Lowering the second steel pipe pile, feeding and driving the second steel pipe pile; adjusting the verticality of the second steel pipe pile according to the control method described in any one of claims 4-9; Recover the inner stabilizing pile platform.

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