Foundation Pit Support Servo System and its Construction Method

Abstract

This invention provides a foundation pit support servo system and its construction method. The foundation pit support servo system utilizes a multi-system coordinated linkage of a magnetic ball joint system, a support system, and an angle adjustment system to achieve adaptive multi-directional support of complex foundation pits with different prestress levels to control foundation pit deformation. Specifically, the magnetic ball joint system ensures uniform force distribution on the servo nodes, achieving adaptive adjustment of axial force and multi-directional support servoing. The support system converts bending moments into axial forces, increasing prestress transfer efficiency, reducing adverse effects on support nodes, and improving stability and safety during construction.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a foundation pit support servo system and its construction method. Background Technology

[0002] Currently, due to the continuous upgrading of building functions, the requirements for the construction of existing buildings are becoming increasingly higher. Under complex geological conditions, it is becoming increasingly difficult to carry out high-precision foundation pit construction. In addition, the strata in many deep foundation pit projects are basically saturated water-bearing fluid plastic or soft plastic clay layers. Deformation and displacement during the construction process of deep foundation pits have a significant impact on construction, and settlement outside the pit has a significant impact on the surrounding environment.

[0003] To address the aforementioned issues, servo systems are typically used to mitigate or resolve them. However, commonly used servo systems suffer from limitations such as limited servo node response speed, unstable fixing leading to potential falls, unidirectional and difficult-to-adjust force direction, inability to adapt to the uneven stress in complex foundation pits, and instability during construction, making safe construction unreliable. Therefore, improving the flexibility, adaptability, stability, and safety of servo nodes has become paramount in foundation pit support engineering. Summary of the Invention

[0004] The purpose of this invention is to provide a foundation pit support servo system and its construction method to solve the problems of limited response speed, unstable fixing and easy fall of existing support servo nodes, single force direction and difficulty in adjustment, inability to adapt to uneven force in multiple directions of complex foundation pits, instability in the construction process, and inability to reliably guarantee safe construction.

[0005] To solve the above-mentioned technical problems, the present invention provides a foundation pit support servo system, the foundation pit support servo system comprising:

[0006] A magnetic ball joint system includes: a multi-head hinge ball seat, a plurality of single-head movable-end ball seats used in conjunction with the multi-head hinge ball seat, a ball disposed in a receiving cavity formed by each single-head movable-end ball seat and the multi-head hinge ball seat, a ball handle connected to one end of the ball and passing through the single-head movable-end ball seat, a plurality of first magnetic windings uniformly disposed on each ball, and a second magnetic winding disposed in the multi-head hinge ball seat and the single-head movable-end ball seat corresponding to the position of the first magnetic windings on the ball.

[0007] A support system is connected to the magnetic ball joint system. The support system includes: a space truss loading system connected to the end of the ball handle that passes through the single-ended movable end ball seat away from the ball body, and a support connector connected to the space truss loading system, for converting the support bending moment into axial force and transmitting it to the single-ended movable end ball seat.

[0008] An angle adjustment system is connected to the support system. The angle adjustment system includes several horizontal angle adjustment components and several vertical angle adjustment components for adjusting the support angle of the support system.

[0009] Optionally, in the aforementioned foundation pit support servo system, the magnetic ball joint system further includes: a first embedded steel plate and a first embedded steel plate bolt that matches the first embedded steel plate, so as to detachably fix the multi-head hinge ball seat to the adjacent ground wall.

[0010] Optionally, in the aforementioned foundation pit support servo system, the magnetic ball joint system further includes: a ball seat fixing bolt and a friction reducing plate. The ball seat fixing bolt fixes the single-head movable end ball seat and the multi-head hinged ball seat to form a receiving cavity, and the friction reducing plate is disposed on the inner wall of the receiving cavity.

[0011] Optionally, in the aforementioned foundation pit support servo system, the multi-head articulated ball seat includes: a base, multiple articulated ball seats, and multiple rotating shafts. Each articulated ball seat is mounted on the base via a rotating shaft, and each articulated ball seat is connected to a single-head movable end ball seat. Each base has several first bolt holes to accommodate first pre-embedded steel plate bolts; each articulated ball seat has several articulated ball seat bolt holes to accommodate ball seat fixing bolts.

[0012] Optionally, in the aforementioned foundation pit support servo system, each single-head movable end ball seat includes: a body and single-head movable end ball seat bolt holes formed on the body. The size and position of the single-head movable end ball seat bolt holes correspond to the size and position of the hinge ball seat bolt holes, so as to support the joint adaptation of the ball seat fixing bolts when the hinge ball seat and the single-head movable end ball seat are connected. 6. The foundation pit support servo system as described in claim 1, characterized in that the number of the first magnetic windings is 36, the number of the second magnetic windings is 36, wherein 24 second magnetic windings are disposed on the inner cavity of the multi-head hinge ball seat and 12 second magnetic windings are disposed on the inner cavity of the single-head movable end ball seat, the first magnetic windings and the second magnetic windings are positioned correspondingly and repel each other magnetically.

[0013] Optionally, in the aforementioned foundation pit support servo system, the ball handle includes: a cylindrical ball handle and a cuboid ball handle, one end of the cylindrical ball handle being connected to the sphere and the other end being connected to the cuboid ball handle; the end of the cuboid ball handle furthest from the sphere is connected to the space truss loading system.

[0014] Optionally, in the aforementioned foundation pit support servo system, the space truss loading system includes: ten hydraulic jacks and a protective steel cover fitted around the outside of the ten hydraulic jacks, with one end of each hydraulic jack connected to the ball handle and the other end connected to the support connector.

[0015] Optionally, in the aforementioned foundation pit support servo system, the support system further includes: steel support connector bolts or concrete support embedded bolts connected to the support connector to fix the support connector to the steel support or concrete support.

[0016] Optionally, in the aforementioned foundation pit support servo system, each horizontal angle adjustment component includes: a hydraulic jack, two second pre-embedded steel plates respectively connected to both ends of the hydraulic jack, and second pre-embedded steel plate bolts matching the second pre-embedded steel plates. Based on the cooperation between the second pre-embedded steel plates and the second pre-embedded steel plate bolts, the hydraulic jack is installed between two adjacent support connectors or between the support connector and the adjacent ground wall to adjust the support angle and form a stable horizontal control.

[0017] Optionally, in the aforementioned foundation pit support servo system, each vertical angle adjustment component includes: a hydraulic jack, two third embedded steel plates respectively connected to both ends of the hydraulic jack, and third embedded steel plate bolts that match the third embedded steel plates. Based on the cooperation between the third embedded steel plates and the third embedded steel plate bolts, the hydraulic jack is installed between the support connector and the adjacent ground wall to adjust the support angle and form a vertically stable control.

[0018] The present invention also provides a construction method for a foundation pit support servo system, the construction method of the foundation pit support servo system comprising:

[0019] S1. Fix the multi-head hinged ball seat of the magnetic ball hinge system to the floor wall;

[0020] S2. Fix the support connectors of the support system onto the steel support or reinforced concrete support.

[0021] S3. Install the angle adjustment system, wherein, in the horizontal direction, a horizontal angle adjustment component is installed between two adjacent support connectors and between the support connector and the adjacent ground wall; in the vertical direction, a vertical angle adjustment component is installed between the support connector and the adjacent ground wall.

[0022] In the foundation pit support servo system and its construction method provided by this invention, the foundation pit support servo system utilizes a multi-system coordinated linkage of a magnetic ball joint system, a support system, and an angle adjustment system to achieve the need for adaptive multi-directional support of complex foundation pits with different prestress levels to control foundation pit deformation. Specifically, the magnetic ball joint system ensures uniform force distribution to the servo nodes, achieving adaptive adjustment of axial force and multi-directional support servoing. The support system converts bending moments into axial forces, increasing prestress transfer efficiency, reducing adverse effects on support nodes, and improving stability and safety during construction. Attached Figure Description

[0023] The above and other objects, features and advantages of this disclosure will become more apparent from the accompanying drawings, in which like reference numerals generally denote like parts.

[0024] Figure 1 This is a schematic diagram of the planar layout of a multi-directional servo node structure for an axial force adaptive adjustment foundation pit support according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the elevation layout of the foundation pit support servo system in one embodiment of the present invention;

[0026] Figure 3 This is a plan view of the multi-head hinged ball seat of the foundation pit support servo system in one embodiment of the present invention;

[0027] Figure 4 This is a schematic elevation view of the multi-head hinged ball seat of the foundation pit support servo system in one embodiment of the present invention.

[0028] Figure 5 This is a plan view of the single-head movable end ball seat of the foundation pit support servo system in one embodiment of the present invention;

[0029] Figure 6 This is a schematic elevation view of the single-head movable end ball seat of the foundation pit support servo system in one embodiment of the present invention.

[0030] Figure 7 This is a planar schematic diagram of the sphere of the foundation pit support servo system in one embodiment of the present invention;

[0031] Figure 8 This is a schematic elevation view of the sphere of the foundation pit support servo system in one embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the arrangement of the second magnetic winding disposed in the multi-head hinged ball seat in a foundation pit support servo system according to an embodiment of the present invention.

[0033] Figure 10 This is a schematic diagram of the arrangement of the second magnetic winding disposed in the ball seat of the single-head movable end in a foundation pit support servo system according to an embodiment of the present invention.

[0034] Figure 11 This is a schematic diagram of the arrangement of the first magnetic winding on the sphere in a foundation pit support servo system according to an embodiment of the present invention.

[0035] Figure 12 This is a schematic diagram of the overall arrangement of the magnetic windings in a foundation pit support servo system according to an embodiment of the present invention;

[0036] Figure 13 This is a schematic diagram of the structure of the support connector of the foundation pit support servo system when it is connected to the steel support in one embodiment of the present invention;

[0037] Figure 14 This is a schematic diagram of the structure of the support connector of the foundation pit support servo system when it is connected to the reinforced concrete support in one embodiment of the present invention;

[0038] Figure 15 This is a schematic diagram of the foundation pit support servo system of the present invention during construction.

[0039] In the picture:

[0040] 1-Multi-head hinged ball seat; 101-Base; 102-Base rib plate; 103-Multiple hinged ball seats; 104-Hinged ball seat rib plate; 105-Hinged ball seat bolt hole position; 106-Rotating shaft; 2-Single-head movable end ball seat; 201-Single-head movable end ball seat bolt hole position; 202-Body rib plate; 301-Sphere; 302-Cylindrical ball handle; 303-Cuboid ball handle; 304-First magnetic winding; 107, 203-Second magnetic winding; 4-First embedded steel plate; 5-Grinding reduction plate; 6-Ball seat fixing bolt; 7-First embedded steel plate bolt;

[0041] 8-Space truss loading system; 9-Support connector; 10-Protective steel cover; 13-Steel support connector bolts; 18-Concrete support embedded bolts;

[0042] 11-Horizontal angle adjustment assembly; 12-Second embedded steel plate; 14-Second embedded steel plate bolt; 15-Vertical angle adjustment assembly; 16-Third embedded steel plate; 17-Third embedded steel plate bolt;

[0043] x01-Floor wall; x02-Steel support; x05-Reinforced concrete support; x03-Base slab; x04-Subbase layer. Detailed Implementation

[0044] The foundation pit support servo system and its construction method proposed in this invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this invention.

[0045] Please refer to Figure 1 and Figure 2 The foundation pit support servo system includes: a magnetic ball joint system, a support system, and an angle adjustment system. The magnetic ball joint system includes: a multi-head hinge ball seat 1, several single-head movable-end ball seats 2 used in conjunction with the multi-head hinge ball seat 1, a ball 301 disposed in the accommodating cavity formed by each single-head movable-end ball seat 2 and the multi-head hinge ball seat, a ball handle connected to one end of the ball and passing through the single-head movable-end ball seat 2, several first magnetic windings 304 evenly disposed on each ball 301, and second magnetic windings 107, 203 (i.e., the second magnetic windings are included in the multi-head hinge ball seat 1 and the single-head movable-end ball seat 2) disposed in the multi-head hinge ball seat 1 and the single-head movable-end ball seat 2, corresponding to the position of the first magnetic windings 304 on the ball. The second magnetic winding 107 in the ball seat 1 and the second magnetic winding 203 in the single-head movable end ball seat 2 are used to ensure that the ball 301 is uniformly stressed, thereby achieving axial force self-adaptation and multi-directional support servo of the servo node. The support system is connected to the magnetic ball hinge system. The support system includes: a space truss loading system 8 connected to the end of the ball handle that passes through the single-head movable end ball seat 2 away from the ball, and a support connector 9 connected to the space truss loading system 8, which is used to convert the support bending moment into axial force and transmit it to the single-head movable end ball seat 2, thereby effectively increasing the prestress transmission efficiency. The angle adjustment system is connected to the support system. The angle adjustment system includes: several horizontal angle adjustment components 11 and several vertical angle adjustment components 15, which are used to adjust the support angle of the support system. The space truss loading system 8 includes: ten hydraulic jacks and a protective steel cover 10 sleeved on the outside of the ten hydraulic jacks. One end of each hydraulic jack is connected to the ball handle, and the other end is connected to the support connector 9.

[0046] This invention, based on a multi-system coordinated linkage approach, achieves the need for adaptive multi-directional support of complex foundation pits with different prestress levels to control pit deformation. Specifically, the magnetic levitation ball hinge system ensures uniform force distribution on the servo nodes, realizing adaptive adjustment of axial force and multi-directional support servoing. The support system converts bending moments into axial forces, increasing prestress transfer efficiency, reducing adverse effects on support nodes, and improving stability and safety during construction.

[0047] Preferably, the magnetic ball joint system further includes: a first embedded steel plate 4 and a first embedded steel plate bolt 7 matching the first embedded steel plate 4, so as to detachably fix the multi-head hinge ball seat 1 to the adjacent floor wall x01. In this embodiment, the dimensions of the first embedded steel plate 4 are 3500mm in length, 2000mm in width, and 20mm in thickness.

[0048] Furthermore, such as Figure 2 As shown, the magnetic ball joint system further includes: a ball seat fixing bolt 6 and a friction reducing plate 5. The ball seat fixing bolt 6 fixes the single-head movable end ball seat 2 and the multi-head hinged ball seat 1 to form a receiving cavity. The friction reducing plate 5 is disposed on the inner wall of the receiving cavity. That is, the multi-head hinged ball seat 1 and the single-head movable end ball seat 2 are connected by the ball seat fixing bolt 6, enclosing the ball in the receiving cavity formed therein. The friction reducing plate 5 allows the ball 301 to rotate freely within the receiving cavity. It can be understood that the friction reducing plate 5 is provided with through holes for the second magnetic windings 107 and 203 to pass through, so as not to obstruct the operation of the second magnetic windings. The radius of the ball 301 is 580 mm, the thickness of the friction reducing plate is 20 mm, and the radius of the receiving cavity formed by the multi-head hinged ball seat 1 and the single-head movable end ball seat 2 is 600 mm.

[0049] Please refer to Figure 3 and Figure 4 The multi-head articulated ball joint 1 includes: a base 101, multiple articulated ball joints 103, and multiple rotating shafts 106. Each articulated ball joint 103 is mounted on the base via a rotating shaft 106, and each articulated ball joint 103 is connected to a single-head movable end ball joint 2. Each base 101 has several first bolt holes for accommodating first pre-embedded steel plate bolts 7; each articulated ball joint 103 has several articulated ball joint bolt holes 105 for accommodating ball joint fixing bolts 6. Furthermore, to enhance the rigidity of the multi-head articulated ball joint 1, a base rib 102 is provided on the base 101, and an articulated ball joint rib 104 is provided on the articulated ball joint 103.

[0050] In this embodiment, please refer to Figure 4 , Figure 5 and Figure 6 Each single-head movable end ball seat 2 includes: a body and single-head movable end ball seat bolt holes 201 formed on the body. The size and position of the single-head movable end ball seat bolt holes 201 correspond to the size and position of the hinge ball seat bolt holes (105) to support the ball seat fixing bolts 6 when the hinge ball seat 103 is connected to the single-head movable end ball seat 2. In addition, in order to enhance the rigidity of the single-head movable end ball seat 2, a body rib plate 202 is provided on the body.

[0051] Preferably, in order to ensure the strength of the articulated ball seat, this embodiment also reinforces both the multi-head articulated ball seat 1 and the single-head movable end ball seat 2 by welding a heel plate inside.

[0052] Please refer to Figure 9 , Figure 10 , Figure 11 and Figure 12 In this embodiment, there are 36 first magnetic windings 304 and 36 second magnetic windings 107 and 203. 24 second magnetic windings 107 are disposed on the inner cavity of the multi-head hinged ball seat 1, and 12 second magnetic windings 203 are disposed on the inner cavity of the single-head movable end ball seat 2. The first magnetic windings 304 and the second magnetic windings 107 and 203 are in corresponding positions and repel each other magnetically.

[0053] Specifically, the first and second magnetic windings in the magnetic ball joint system are evenly distributed, which makes the ball magnetically levitate under uniform force, enhancing the adaptability and stability of the servo node.

[0054] Please refer to Figure 7 and Figure 8 The ball handle includes a cylindrical ball handle 302 and a cuboid ball handle 303. One end of the cylindrical ball handle is connected to the sphere, and the other end is connected to the cuboid ball handle. The end of the cuboid ball handle furthest from the sphere is connected to the space truss loading system 8. The cylindrical ball handle 302 has a radius of 450 mm and a length of 520 mm.

[0055] Please refer to Figure 13 and Figure 14 The support system further includes: steel support connector bolts 13 or concrete support embedded bolts 18 connected to the support connector 9, so as to fix the support connector 9 to the steel support x02 or the concrete support x05.

[0056] like Figure 1 , Figure 2 and Figure 15As shown, each horizontal angle adjustment component 11 includes: a hydraulic jack, two second embedded steel plates 12 respectively connected to both ends of the hydraulic jack, and second embedded steel plate bolts 14 matching the second embedded steel plates 12. Based on the cooperation between the second embedded steel plates 12 and the second embedded steel plate bolts 14, the hydraulic jack is installed between two adjacent support connectors 9 or between the support connector 9 and the adjacent ground wall x01 to adjust the support angle and form a stable horizontal control. Each vertical angle adjustment component 15 includes: a hydraulic jack, two third embedded steel plates 16 respectively connected to both ends of the hydraulic jack, and third embedded steel plate bolts 17 matching the third embedded steel plates 16. Based on the cooperation between the third embedded steel plates 16 and the third embedded steel plate bolts 17, the hydraulic jack is installed between the support connector 9 and the adjacent ground wall x01 to adjust the support angle and form a stable vertical control. Specifically, the vertical angle adjustment component 15 will adjust the angle according to the support displacement caused by the heave or settlement of the soil at the bottom of the foundation pit.

[0057] It is understood that the above examples are merely examples listed to better understand the technical solutions of the embodiments of this application, and are not intended to be the only limitation on the embodiments.

[0058] Accordingly, to enhance understanding of the foundation pit support servo system of the present invention, this embodiment also provides a construction method for the foundation pit support servo system. See below for reference. Figures 1-15 This embodiment details the construction method of the foundation pit support servo system.

[0059] First, please refer to Figure 1 and Figure 2 In step S1, the multi-head hinged ball joint 1 of the magnetic ball joint system is fixedly installed on the floor wall x01; the base plate x03 is stacked on the pad layer x04 and perpendicular to the floor wall x01. It can be understood that before performing step S1, single-head movable end ball joints 2 have been prepared according to requirements, and each single-head movable end ball joint 2 is mated and fixed on the multi-head hinged ball joint 1.

[0060] Next, please refer to Figure 13 and Figure 14 Execute step S2 to fix the support connector 9 of the support system onto the steel support x02 or the reinforced concrete support x05.

[0061] Next, please refer to Figure 1 , Figure 2 and Figure 15Step S3 is executed to install the angle adjustment system. Horizontally, a horizontal angle adjustment component is installed between two adjacent support connectors 9 and between a support connector 9 and the adjacent ground wall x01. Vertically, a vertical angle adjustment component is installed between a support connector 9 and the adjacent ground wall x01. Subsequently, the horizontal and / or vertical adjustment components can be adjusted according to the displacement of the foundation pit supports, thereby effectively reducing the significant impact of deformation and displacement during deep foundation pit construction on construction, and mitigating the impact of settlement outside the pit on the surrounding environment. This improves the flexibility and adaptability of the servo node.

[0062] In summary, the foundation pit support servo system and its construction method provided by this invention utilize a multi-system coordinated linkage of a magnetic ball joint system, a support system, and an angle adjustment system to achieve adaptive multi-directional support of complex foundation pits with different prestress levels to control foundation pit deformation. Specifically, the magnetic ball joint system ensures uniform force distribution to the servo nodes, achieving adaptive adjustment of axial force and multi-directional support servoing. Furthermore, the support system converts bending moments into axial forces, increasing prestress transfer efficiency, reducing adverse effects on the support nodes, and improving stability and safety during construction.

[0063] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A foundation pit support servo system, characterized in that, include: A magnetic ball joint system includes: a multi-head hinge ball joint (1), several single-head movable end ball joints (2) used in conjunction with the multi-head hinge ball joint (1), a ball (301) disposed in the accommodating cavity formed by each single-head movable end ball joint (2) and the multi-head hinge ball joint, a ball handle connected to one end of the ball and passing through the single-head movable end ball joint (2), several first magnetic windings (304) uniformly disposed on each ball (301), and second magnetic windings (107, 203) disposed in the multi-head hinge ball joint (1) and the single-head movable end ball joint (2), wherein the second magnetic windings (107, 203) are located in the multi-head hinge ball joint (1) and the single-head movable end ball joint (2). The position inside the end ball seat (2) corresponds one-to-one with the position of the first magnetic winding (304) on the sphere, and the magnetic forces repel each other; wherein, the multi-head hinged ball seat (1) includes: a base (101), multiple hinged ball seats (103) and multiple rotating shafts (106), each hinged ball seat (103) is mounted on the base through a rotating shaft (106), and each hinged ball seat (103) is connected to a single-head movable end ball seat (2); wherein, each base (101) is provided with a number of first bolt holes to adapt to the first pre-embedded steel plate bolts (7); each hinged ball seat (103) is provided with a number of hinged ball seat bolt holes (105) adapted to the ball seat fixing bolts (6); A support system connected to the magnetic ball joint system, the support system comprising: a space truss loading system (8) connected to the end of the ball handle passing through the single-head movable end ball seat (2) away from the ball body, and a support connector (9) connected to the space truss loading system (8) to convert the support bending moment into axial force and transmit it to the single-head movable end ball seat (2); An angle adjustment system is connected to the support system. The angle adjustment system includes several horizontal angle adjustment components (11) and several vertical angle adjustment components (15) for adjusting the support angle of the support system.

2. The foundation pit support servo system as described in claim 1, characterized in that, The magnetic ball joint system further includes: a first embedded steel plate (4) and a first embedded steel plate bolt (7) matching the first embedded steel plate (4) to detachably fix the multi-head hinge ball seat (1) to the adjacent ground wall (x01).

3. The foundation pit support servo system as described in claim 2, characterized in that, The magnetic ball joint system further includes: ball seat fixing bolt (6) and friction reducing plate (5). The ball seat fixing bolt (6) fixes the single-head movable end ball seat (2) and the multi-head hinge ball seat (1) to form a receiving cavity. The friction reducing plate (5) is disposed on the inner wall of the receiving cavity.

4. The foundation pit support servo system as described in claim 1, characterized in that, Each single-head movable end ball seat (2) includes: a body and a single-head movable end ball seat bolt hole (201) opened on the body. The opening size and position of the single-head movable end ball seat bolt hole (201) correspond to the size and position of the hinge ball seat bolt hole (105) so as to support the ball seat fixing bolt (6) when the hinge ball seat (103) is connected to the single-head movable end ball seat (2).

5. The foundation pit support servo system as described in claim 1, characterized in that, The number of the first magnetic winding (304) is 36, and the number of the second magnetic winding (107, 203) is 36, of which 24 second magnetic windings are disposed on the inner cavity of the multi-head hinge ball seat (1) and 12 second magnetic windings are disposed on the inner cavity of the single-head movable end ball seat (2).

6. The foundation pit support servo system as described in claim 1, characterized in that, The ball handle includes a cylindrical ball handle (302) and a cuboid ball handle (303). One end of the cylindrical ball handle is connected to the ball, and the other end is connected to the cuboid ball handle. The end of the cuboid ball handle away from the ball is connected to the space truss loading system (8).

7. The foundation pit support servo system as described in claim 1, characterized in that, The space truss loading system (8) includes: ten hydraulic jacks and a protective steel cover (10) sleeved on the outside of the ten hydraulic jacks. One end of each hydraulic jack is connected to the ball handle, and the other end is connected to the support connector (9).

8. The foundation pit support servo system as described in claim 1, characterized in that, The support system further includes: steel support connector bolts (13) or concrete support embedded bolts (18) connected to the support connector (9) to fix the support connector (9) to the steel support (X02) or concrete support (X05).

9. The foundation pit support servo system as described in claim 1, characterized in that, Each horizontal angle adjustment component (11) includes: a hydraulic jack, two second embedded steel plates (12) respectively connected to both ends of the hydraulic jack, and second embedded steel plate bolts (14) matching the second embedded steel plates (12). Based on the cooperation between the second embedded steel plates (12) and the second embedded steel plate bolts (14), the hydraulic jack is installed between two adjacent support connectors (9) or between the support connectors (9) and the adjacent ground wall (x01) to adjust the support angle and form a stable horizontal control.

10. The foundation pit support servo system as described in claim 1, characterized in that, Each vertical angle adjustment component (15) includes: a hydraulic jack, two third embedded steel plates (16) respectively connected to both ends of the hydraulic jack, and third embedded steel plate bolts (17) matching the third embedded steel plates (16). Based on the cooperation between the third embedded steel plates (16) and the third embedded steel plate bolts (17), the hydraulic jack is installed between the support connector (9) and the adjacent ground wall (x01) to adjust the support angle and form a vertical direction stable control.

11. A construction method for a foundation pit support servo system as described in any one of claims 1 to 10, Its features are, include: S1. Fix the multi-head hinge ball seat (1) of the magnetic ball hinge system to the ground wall (x01); S2. Fix the support connector (9) of the support system to the steel support (x02) or reinforced concrete support (x05); S3. Install the angle adjustment system, wherein, in the horizontal direction, a horizontal angle adjustment component is installed between two adjacent support connectors (9) and between the support connector (9) and the adjacent ground wall (x01); in the vertical direction, a vertical angle adjustment component is installed between the support connector (9) and the adjacent ground wall (x01).

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