Pile and column integrated tool section based on reverse building method and construction system

Abstract

The invention relates to the field of reverse building method construction, and discloses a pile-column integrated tool section based on a reverse building method and a construction system.The tool section comprises a tool section main body, a first through hole, a second through hole, a first through hole and a second through hole, the two groups of clinometers are respectively arranged on the hole wall of the first through hole, the two groups of clinometers are orthogonally distributed, one group of clinometers is arranged along the first direction of the pile column, the other group of clinometers is arranged along the second direction of the pile column, and the first direction is orthogonal to the second direction. According to the technical scheme, the inclinometer serves as an auxiliary fixing and perpendicularity monitoring tool, the steel pipe column is assisted to be accurately, stably and vertically lowered, and the construction quality and safety are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of reverse construction method, in particular to a pile column integrated tool joint and construction system based on reverse construction method. BACKGROUND

[0002] With the increasingly scarce urban land resources, efficient development of underground space has become an important direction of urban construction. As a kind of underground structure construction technology from top to bottom, reverse construction method has been widely used in deep foundation pit engineering such as urban high-speed rail, subway station, large underground commercial body and underground parking garage, because it can simultaneously carry out main structure and foundation pit support operation, has the advantages of shortening construction period, reducing risk and reducing surrounding disturbance. In the construction of reverse construction method, the "pile column integration" technology as a key means of structure and construction integration, its role not only supports the load of the upper structure, but also undertakes the task of local stress control in addition to underground continuous wall or diaphragm wall. Among them, the reinforcement cage is put into the pre-drilled deep hole, and the steel pipe column is precisely hoisted and lowered to the center of the deep hole, and then the concrete is poured to form a solid cast-in-place pile.

[0003] However, in the current pile column integrated construction process, the steel pipe column has the problems of deviation and instability when being lowered, which causes the steel pipe column to be unable to be precisely, stably and vertically lowered, seriously affecting the construction quality and efficiency. SUMMARY

[0004] Therefore, the present application provides a pile column integrated tool joint and construction system based on reverse construction method, by setting a tool joint connected with the steel pipe column and setting an inclinometer sensor in the tool joint, the inclinometer sensor as an auxiliary fixing and verticality monitoring tool helps the steel pipe column to be precisely, stably and vertically lowered, and ensures the construction quality and safety.

[0005] In a first aspect, a pile column integrated tool joint based on reverse construction method is provided, comprising: a tool joint body, which is a cylinder and is provided with a first through hole; two groups of inclinometer sensors, which are respectively arranged on the hole wall of the first through hole, wherein the two groups of inclinometer sensors are orthogonally distributed, one of the two groups of inclinometer sensors is arranged along a first direction of the pile column, and the other group of inclinometer sensors is arranged along a second direction of the pile column, and the first direction is orthogonal to the second direction.

[0006] In a possible implementation manner of the first aspect, a top flange is further arranged at the top of the tool joint body, and the two groups of inclinometer sensors are arranged at a first distance below the top flange.

[0007] In a possible implementation manner of the first aspect, the waterproof shell body is arranged outside the two groups of inclinometer sensors and forms a containing cavity for containing the inclinometer sensors; and a sealing structure is arranged on the waterproof shell body and used for sealing and isolating the containing cavity from the external environment.

[0008] In a possible implementation manner of the first aspect, a pre-embedded steel seat is arranged on the hole wall of the first through hole, and the waterproof shell body is connected to the pre-embedded steel seat through bolts.

[0009] In a possible implementation manner of the first aspect, a control device is arranged on the top of the tool joint body; and the waterproof shell comprises a data transmission interface used for connecting to the control device through a cable.

[0010] In a possible implementation manner of the first aspect, at least one overflow port is arranged on the tool joint body, and the overflow port is used for determining overflow of the concrete.

[0011] In the second aspect, the application provides a pile column integrated construction system based on a reverse construction method, comprising: a tool joint, including: a tool joint body, which is a cylinder and is provided with a first through hole; two groups of inclinometer sensors, which are arranged on the hole wall of the first through hole, wherein the two groups of inclinometer sensors are orthogonally distributed, one of the two groups of inclinometer sensors is arranged along a first direction of the pile column, and the other group of inclinometer sensors is arranged along a second direction of the pile column, and the first direction is orthogonal to the second direction; a steel pipe column, wherein one end of the steel pipe column is connected to one end of the tool joint through a plurality of bolts, and the inclinometer sensors are used for measuring the perpendicularity of the tool joint and the steel pipe column; a casing, which is arranged in a pouring hole; a positioning platform, which is arranged above the casing; and a full-rotation drilling machine, which is used for clamping the steel pipe column and is arranged on the positioning platform.

[0012] In a possible implementation manner of the second aspect, at least one overflow port is arranged on one end of the tool column connected to the steel pipe column, and the overflow port is used for determining overflow of the at least one kind of concrete.

[0013] In a possible implementation manner of the second aspect, the positioning platform comprises: a first circular hole, and the positioning platform is provided with N positioning rings on the surface away from the casing, each of the N positioning rings is composed of an arc plate, and each of the N positioning rings comprises a circular groove surrounded by the arc plate, wherein N is a positive integer greater than 1; and the full-rotation drilling machine comprises: a second circular hole; and N oil legs, which correspond to the N positioning rings one by one, each of the N oil legs is arranged in the circular groove of the corresponding positioning ring, so that the center of the first circular hole of the positioning platform is vertically arranged above the center of the second circular hole of the full-rotation drilling machine.

[0014] In a possible implementation manner of the second aspect, the full-rotation drilling machine comprises a full-rotation clamping device arranged on a hole wall of the second circular hole and used for clamping the steel pipe column.

[0015] The application has the beneficial effects that: the inclination control problem of the steel pipe column is effectively solved by real-time monitoring and feedback of the tool joint inclinometer sensor, the verticality and position accuracy of the steel pipe column are ensured, the construction error is greatly reduced, and the construction quality is improved; meanwhile, the construction operation process is simplified, the rework caused by the verticality problem is reduced, and the construction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A schematic diagram of a construction system provided by an embodiment of the application is shown.

[0017] Figure 2 A schematic diagram of a tool joint, a steel pipe column and a reinforcement cage provided by an embodiment of the application is shown.

[0018] Figure 3 A schematic diagram of a tool joint provided with an inclinometer sensor provided by an embodiment of the application is shown.

[0019] Figure 4 A schematic diagram of a waterproof housing provided by an embodiment of the application is shown.

[0020] Figure 5 A schematic diagram of a tool joint and a steel pipe column connected by an embodiment of the application is shown.

[0021] Figure 6 A schematic diagram of a positioning platform provided by an embodiment of the application is shown.

[0022] Figures 7A to 7C A schematic diagram of a full-rotation drilling machine provided by an embodiment of the application is shown. DETAILED DESCRIPTION

[0023] The illustrative embodiments of the application include, but are not limited to, a pile-integrated tool joint and a construction system based on top-down method.

[0024] Figure 1 A schematic diagram of a construction system provided by an embodiment of the application is shown, which comprises a positioning platform 1, a full-rotation drilling machine 2, a casing 3, a tool column 4, a plurality of total stations 5, a plurality of plumb lines 6 and an inclinometer 7.

[0025] The casing 3 is arranged in a pouring hole (not shown in the figure) in the ground. Figure 1The casing 3 can be a steel cylinder buried in the pile site of the cast-in-place hole, serving as a "guide and protective sleeve" for the drilling. The center point of the casing 3 represents the center of the pile site of the cast-in-place hole and is the "starting point" and "reference" for the subsequent drilling machine, providing an accurate drilling position. In the early stage of drilling, the casing 3 can guide the drill bit of the drilling machine to drill downward in the vertical direction, preventing the drill bit from deviating from the designed position due to uneven hardness of the soil layer, which is crucial to ensure the verticality of the pile. In addition, the casing 3 can also prevent the hole from collapsing, prevent surface water or debris from falling, etc. In the embodiments of the present application, the casing 3 can be selected as a steel casing with high strength, good waterproofness, and reusability.

[0026] In the embodiments of the present application, the tool column 4 can include a steel pipe column, that is, Figure 1 The construction system shown can drill the steel pipe column into the cast-in-place hole. However, as mentioned in the background section, there are problems of deviation and instability when the steel pipe column is lowered, which leads to the steel pipe column being unable to be accurately, stably and vertically lowered, seriously affecting the construction quality and efficiency.

[0027] To solve the above problems, the present application provides a pile column integrated tool joint based on the top-down method and a construction system. By setting a tool joint connected with the steel pipe column and setting an inclinometer sensor in the tool joint, the inclinometer sensor serves as an auxiliary fixing and verticality monitoring tool to help the steel pipe column to be accurately, stably and vertically lowered, ensuring the construction quality and safety.

[0028] The inclinometer 7 can measure the inclination angle of the tool column 4 relative to the direction of gravity through an inclinometer sensor, which can be set on the tool column 4, such as the top of the tool column 4 (because the displacement and inclination angle are the largest at the top, so the highest sensitivity and resolution can be obtained by measuring here). For example, the inclinometer sensor can be a micro-electromechanical system accelerometer or an electrolyte sensor, which calculates the inclination angle by sensing the component change of the earth's gravitational acceleration on its sensitive axis. When the inclinometer sensor tilts with the tool column 4, the gravity will produce a component on its measurement axis, and the inclinometer sensor calculates the angle between itself and the gravity plumb line by measuring this component and through the inverse sine or inverse tangent formula.

[0029] Figure 2 A schematic diagram of the tool column provided by the embodiments of the present application is shown. As shown in Figure 3 The tool column 4 includes a tool joint 41, a steel pipe column 42 and a reinforcement cage 43. As shown in Figure 2As shown, one end of the steel pipe column 42 can be connected with the tool joint 41, and the other end can be connected with the reinforcement cage 43, or at least a part of the other end is arranged in the reinforcement cage 43. In the embodiment of the present application, the tool joint 41 can be adapted to the specific structure of the steel pipe column 42 (such as a cylindrical or a slot-shaped form). During construction, the tool joint is matched with the construction equipment to position and support the steel pipe column inserted and placed first.

[0030] Figure 3 A schematic diagram of the tool joint provided by the embodiment of the present application is shown. As shown in the figure, Figure 3 The tool joint 41 includes a tool joint body 411 and an inclinometer sensor 412. The tool joint body 411 is a cylinder and is provided with a first through hole 413, and the inclinometer sensor 412 can be arranged on the hole wall of the first through hole 413.

[0031] In the embodiment of the present application, two groups of inclinometer sensors 412 can be arranged, which are orthogonally distributed. One of the two groups of inclinometer sensors 412 is arranged along a first direction of the pile column, and the other group is arranged along a second direction of the pile column. The first direction is orthogonal to the second direction. For example, one group is arranged along the X direction of the pile column axis, and the other group is arranged along the Y direction, forming a three-dimensional monitoring coordinate system, which ensures that the inclination of the pile column in any direction on the horizontal plane can be captured. Optionally, in some embodiments, the top of the tool joint 41 can be provided with a top flange, and the two groups of inclinometer sensors 412 are arranged at a first distance, such as 30 cm, below the top flange.

[0032] Optionally, the inclinometer sensor 412 can be externally encapsulated with a waterproof shell such as a stainless steel waterproof shell. Figure 4 A schematic diagram of a waterproof shell provided by the embodiment of the present application is shown. As shown in the figure, Figure 4 The waterproof shell includes a waterproof shell body 414, which is arranged outside the two groups of inclinometer sensors 412 and forms a receiving cavity 415 for accommodating the inclinometer sensors 412. In addition, the waterproof shell further includes a sealing structure 416 arranged on the waterproof shell body 414, which seals and isolates the receiving cavity 415 from the external environment.

[0033] In another embodiment of the present application, a pre-embedded steel seat can be arranged on the hole wall of the first through hole 413 of the tool joint body 411, and the waterproof shell body is connected with the pre-embedded steel seat through the sealing structure 416 such as a bolt.

[0034] In another embodiment of the present application, the top of the tool joint body 411 can also be provided with a control device, and the waterproof shell further includes a data transmission interface for connecting with the control device through a cable.

[0035] AsFigure 5 As shown, one end of the tool joint 41 is provided with a flange plate 417 and a hole 418 provided on the flange plate 417, and one end of the steel pipe column 42 is provided with a flange plate 421 and at least one hole corresponding to the hole 418. Further, the tool joint 41 and the steel pipe column 42 are connected by corresponding the positions of the holes provided on the flange plate 417 and the flange plate 421, and by providing bolts. For example, 12 M30 (10.9 grade) bolts can be used for connection, and during construction, symmetrically graded fastening should be used, and after fastening is completed, torque is measured by a torque wrench. In addition, at the junction of the steel pipe column 42 and the tool joint 41, four concrete overflow ports can be symmetrically provided. After the tool joint 41 and the steel pipe column 42 are assembled, the verticality is rechecked by the total station 5 before hoisting, at which time the measurement value of the inclinometer 7 is cleared, a "vertical reference zero point" is established, and it is ensured that the subsequent monitoring data is based on the initial vertical state.

[0036] With reference to the drawings, Figure 1 The positioning platform 1 is arranged above the casing 3. Figure 6 A schematic diagram of a positioning platform is shown. As Figure 6 shown, the positioning platform 1 is provided with N positioning rings 11 on the surface away from the casing 3, each of the N positioning rings 11 is composed of an arc plate, and each of the N positioning rings 11 includes a circular groove 12 surrounded by the arc plate. Wherein, N is a positive integer greater than 1, such as Figure 6 shown, N can be 4. In other embodiments of the present application, N can also be other values, such as 2, 3, 5, 8, etc. For ease of description, the drawings of the present application take 4 as an example. In addition, the positioning platform 1 includes a first circular hole 13, which can enable the tool column 4 to pass through the positioning platform 1 and be drilled into the cast-in-place hole or into the casing 3 by the rotary drilling machine 2.

[0037] With reference to the drawings, Figure 1 The rotary drilling machine 2 is arranged on the positioning platform 1. Figures 7A to 7C A schematic diagram of a rotary drilling machine is shown. Wherein, Figure 7A A three-dimensional schematic diagram of the rotary drilling machine 2 is shown. As Figure 7A shown, the rotary drilling machine 2 includes a second circular hole 21, a third circular hole 22, N oil legs 23 (which can also be referred to as oil cylinder legs), a rotary clamping device 24, and a fine adjustment oil cylinder 25. The second circular hole 21 and the third circular hole 22 of the rotary drilling machine 2 can enable the tool column 4 to pass through the rotary drilling machine 2 and be drilled into the cast-in-place hole or into the casing 3 by the rotary drilling machine 2.

[0038] N hydraulic legs 23 provide stable support for the full-rotation drilling rig 2, preventing the equipment from tipping over, sinking, or moving during operation. Each hydraulic leg 23 can be powered by a hydraulic cylinder (not in...). Figure 7A It consists of a hydraulic rig (shown in the diagram) and a support foot plate. Operators can inject high-pressure hydraulic oil into the hydraulic cylinders by manipulating the hydraulic valves, which in turn pushes the piston rod outwards, lifting the entire equipment off the ground. Afterwards, by controlling the extension length of each hydraulic leg 23, the full-rotation drilling rig 2 can be adjusted to a level position, ensuring stability even on uneven ground.

[0039] Figure 7B It shows Figure 7A A diagram illustrating the third-party corresponding viewpoint (left-hand viewpoint). For example... Figure 7B As shown in the embodiments of this application, the full-rotation drilling rig 2 may further include a fine-tuning cylinder 25, which can cooperate with the full-rotation clamping device 24 to clamp the tool column 4, thereby achieving real-time adjustment of the verticality of the tool column 4. For example, the fine-tuning cylinder 25 can be selected as a hydraulic cylinder with a short stroke but very high control precision. By receiving instructions from the control system, the fine-tuning cylinder 25 can perform extension and retraction at the millimeter level or even smaller units. In the embodiments of this application, two or more fine-tuning cylinders 25 can be arranged on one side of the full-rotation drilling rig 2. By coordinating the extension and retraction of the fine-tuning cylinders 25, a micro-thrust in the desired direction can be generated.

[0040] Figure 7C It shows Figure 7A The diagram illustrates the fourth direction corresponding to the viewpoint (looking up). For example... Figure 7C As shown, the fully rotating clamping device 24, serving as a clamping and transmission component, is disposed on the wall of the second circular hole 21 and is used to clamp the tool post 4. For example, the fully rotating clamping device 24 firmly clamps the tool post 4 by hydraulic or mechanical means and can rotate freely within a 360° range, thereby enabling the tool post 4 to be corrected in any horizontal direction.

[0041] Further, through the full-rotation clamping device 24 and the fine-tuning oil cylinder 25, the verticality of the tool column 4 can be adjusted in real time, and the adjustment process is fast and automatic, greatly shortening the correction time and improving the installation efficiency. In addition, all adjustment processes are carried out smoothly under system control, avoiding the uncertainty and high risk of manual operation. For example, the inclinometer 7 collects the X and Y direction inclination angles in real time (such as X direction inclination 0.3°, Y direction inclination 0.2°), and after the data is transmitted to the central control system, the system calculates the inclination direction (such as north 30° east) and the inclination amount (the horizontal deviation value corresponding to the depth). According to the principle of "inclination direction opposite to the jacking direction", the system calculates the action parameters of the corresponding fine-tuning oil cylinder 25. For example, if the pile column is inclined 0.3° to the X positive direction, the fine-tuning oil cylinder 25 in the X negative direction is extended by 5mm, while the other direction oil cylinders are fine-tuned to avoid secondary inclination. The fine-tuning oil cylinder 25 acts according to the instruction, and corrects the pile column posture through the outer wall of the jacking tool section 41. During the adjustment process, the inclinometer 7 refreshes the data every second, and when the inclination angle is ≤1 / 300 (about 0.19°), the system issues a stop command, and the adjustment is completed. After adjustment, the oil cylinder of the full-rotation clamping device 24 maintains the pushing force, and the four groups of oil legs 23 lock the current extension amount, ensuring that the pile column maintains a stable posture before concrete pouring and solidification.

[0042] In addition, Figure 1 The multiple total stations 5 shown can measure the verticality of the tool column 4 clamped by the full-rotation drilling machine 2 from the X and Y two orthogonal directions. For example, as shown in the figure, Figure 1 As shown, the total station 5 is used to emit or receive light signals, and by pasting a reflecting prism (or using a special target plate) on the same side of the top and middle section of the steel pipe column, the horizontal angle, vertical angle and slant distance can be measured at the same time, and the three-dimensional coordinates (X, Y, Z) or relative position of the point can be calculated and displayed immediately by the internal microprocessor. Then, the total station measures the three-dimensional coordinates (X1, Y1, Z1) of the measurement point of the middle section and the three-dimensional coordinates (X2, Y2, Z2) of the measurement point of the top by aiming at the measurement points of the top and middle section, and further obtains the X direction deviation ΔX = X2-X1, the Y direction deviation ΔY = Y2-Y1 and the height difference ΔH = Z2-Z1 (i.e. the height of the segmented steel pipe column or the height difference between the measurement points). Finally, the verticality in the X direction is calculated as ΔX / ΔH, and the verticality in the Y direction is calculated as ΔY / ΔH. Further, the horizontal deviation of the top of the steel pipe column relative to the middle section or the design reference line can be accurately and quickly measured by the total station 5.

[0043] In addition, the application can also be provided with a feedback device which can adjust the positioning platform 1 and the full-rotation drilling machine 2 according to the data collected by the total station 5 and the inclinometer sensor, so that the center of the tool column 4 coincides with the center of the positioning platform 1 and the full-rotation drilling machine 2. For example, the feedback device can be connected with the total station 5 and the inclinometer 7 through data connection lines, and the feedback device includes a monitor. By connecting the data connection lines on the tool column 4 to the monitor, the sensing probes of the total station 5 and the inclinometer 7 collect the data of the verticality change of the tool column 4 in real time during the process of inserting the steel pipe column, the monitor automatically calculates the change amount and the reading of the instrument, when the reading changes greatly, the deviation is corrected by fine adjustment of the oil top of the positioning platform 1 and the full-rotation drilling machine 2, so that the reading tends to zero, until the tool column 4 is inserted to the designed elevation. Further, through the linkage of multiple devices, the center point deviation control, verticality correction and real-time reading of the elevation of the tool column 4 during the insertion process are realized.

[0044] In the drawings, some structural or methodological features can be shown in a particular arrangement and / or order. However, it should be understood that such a particular arrangement and / or order can not be required. Rather, in some embodiments, these features can be arranged in a manner different from that shown in the illustrative drawings. Additionally, inclusion of a structural or methodological feature in a particular figure is not meant to imply that such feature is required in all embodiments, and in some embodiments, such feature can not be included or can be combined with other features.

[0045] It should be noted that in the examples and descriptions of the present patent, relational terms such as first and second and the like can merely be used to differentiate one entity or action from another, without necessarily requiring or implying that there is any such actual relationship or order between or among these entities or actions. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by an "comprising" statement is not excluded from a process, method, article, or apparatus that includes the element, even when the statement uses the term to limit the possible elements of the process, method, article, or apparatus.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A pile-column integrated tool section based on the reverse construction method, characterized in that, For connection with steel pipe columns, including: Tool section body, the tool section body is cylindrical and has a first through hole; Two sets of inclinometer sensors are respectively installed on the wall of the first through hole. The two sets of inclinometer sensors are orthogonally distributed. One set of the two sets of inclinometer sensors is set along the first direction of the pile column, and the other set of the two sets of inclinometer sensors is set along the second direction of the pile column. The first direction and the second direction are orthogonal. The inclinometer sensors are used to measure the verticality of the tool section and the steel pipe column connected to the tool section.

2. The tool section according to claim 1, characterized in that, Also includes: A top flange is located on the top of the tool section body, wherein the two sets of inclinometer sensors are located at a first distance below the top flange.

3. The tool section according to claim 1 or 2, characterized in that, Also includes: A waterproof outer shell is disposed outside the two sets of inclinometer sensors and forms a receiving cavity for accommodating the inclinometer sensors; A sealing structure is provided on the waterproof outer shell body to seal and isolate the accommodating cavity from the external environment.

4. The tool section according to claim 3, characterized in that, Also includes: An embedded steel base is provided on the wall of the first through hole, wherein the waterproof outer shell body and the embedded steel base are connected by bolts.

5. The tool section according to claim 3, characterized in that, Also includes: The control device is located on the top of the tool section body; The waterproof housing includes: A data transmission interface is provided for connection to the control device via a cable.

6. The tool section according to claim 1 or 2, characterized in that, The tool section body is provided with at least one overflow port, which is used to determine the overflow of concrete.

7. A pile-column integrated construction system based on the reverse construction method, characterized in that, include: Tools section, including: Tool section body, the tool section body is cylindrical and has a first through hole; Two sets of inclinometer sensors are respectively installed on the wall of the first through hole. The two sets of inclinometer sensors are orthogonally distributed. One set of the two sets of inclinometer sensors is set along the first direction of the pile, and the other set of the two sets of inclinometer sensors is set along the second direction of the pile. The first direction and the second direction are orthogonal. A steel pipe column, wherein one end of the steel pipe column is connected to one end of the tool section by a plurality of bolts, wherein the inclinometer sensor is used to measure the perpendicularity of the tool section and the steel pipe column; The protective casing is disposed in the injection hole; A positioning platform is disposed above the protective casing; A full-rotation drilling rig is used to clamp the steel pipe column, and the full-rotation drilling rig is set on the positioning platform.

8. The construction system according to claim 7, characterized in that, The tool section is provided with at least one overflow port at the end connected to the steel pipe column, and the overflow port is used to determine the overflow status of the at least one type of concrete.

9. The construction system according to claim 7 or 8, characterized in that, The positioning platform includes: The first circular hole, the positioning platform has N positioning rings on the surface away from the protective cylinder, each of the N positioning rings is composed of an arc plate, and each positioning ring includes a circular groove surrounded by the arc plate, where N is a positive integer greater than 1; The full-rotation drilling rig includes: Second circular hole; N oil legs, each corresponding to one of the N positioning rings, with each oil leg positioned in the circular groove of the corresponding positioning ring, such that the center of the first circular hole of the positioning platform is vertically aligned with the center of the second circular hole of the full-rotation drilling rig.

10. The construction system according to claim 9, characterized in that, The full-rotation drilling rig includes: A fully rotating clamping device is disposed on the wall of the second circular hole and is used to clamp the steel pipe column.

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