A servo-controlled intelligent segment structure for tunnels with special sections

Abstract

The present invention discloses a servo-controlled intelligent segment structure for tunnels with special-shaped sections. The segment structure is composed of mainline tunnel segments and ramp tunnel segments connected to arched steel segments, and is connected to an internal servo support system. The internal servo support system is configured on both sides of the tunnel segments and at the junction of the arched steel segments with the mainline tunnel segments and the ramp tunnel segments. It is divided into a main support servo truss, a temporary support servo truss, and an auxiliary support servo truss. The three are coordinated to bear force during the excavation stage of the special-shaped section. The hydraulic intelligent servo and locking control system is configured inside the internal servo support system, provides different support axial forces through intelligent control, and locks when the predetermined axial force is reached. The advantage of the present invention is that it integrates the traditional segment structure with the servo support system, coordinates the segment structure with external loads and internal structure forces through servo control, balances the structural force, and effectively reduces the force concentration and deformation of the special-shaped section.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel engineering, and in particular to a servo-controlled intelligent segment structure for a tunnel with a special-shaped section. Background Art

[0002] With the continuous expansion of urban underground road and rail transit networks, the demand for special-shaped tunnel construction in junction and confluence sections has increased significantly. These areas are not only structurally complex but also subject to variable stress conditions, including horizontal shear forces, bending moments, and vertical axial forces. This places higher demands on the deformation and stiffness of tunnel structures, making them prone to large deformations and stress concentrations. Traditional tunnel lining structures often struggle to fully adapt to this complex stress environment, prone to localized damage or even overall instability.

[0003] In the current cases of special-section tunnel projects in merged and diverging sections, some innovative attempts have been made. Take the arched steel segment connection technology used in a trenchless project as an example. The project achieves structural continuity by connecting the mainline tunnel and ramp tunnel segments through arched steel segments, and enhances structural stability by setting oblique reinforcement beams at the joints and temporary supports inside the segments.

[0004] The current problem is:

[0005] When constructing special-section tunnels under complex geological conditions, traditional methods are difficult to control structural deformation, and stress concentration can easily affect the stability and safety of the tunnel structure. The reinforcing beams and temporary supports used inside the arch structure are mostly passive supports, that is, they respond to external forces and lack the ability to actively adjust and control. They are unable to cope with the complex force changes under extreme working conditions, and are prone to large deformation and stress concentration, which may even lead to local damage or even overall instability.

[0006] Traditional segment structures often have difficulty adapting to complex and changing cross-sectional shapes, requiring thickening of the segments or local reinforcement of the structure. They also lack flexibility and precision in responding to complex cross-sectional changes and dynamic construction processes, leading to difficult and long construction periods. Therefore, it is necessary to develop a more intelligent and efficient support system for precise control and real-time monitoring of the construction process. This is an area that this application focuses on improving. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a servo-controlled intelligent segment structure for tunnels with special cross-sections. By introducing a servo control system, adopting a fusion design of internal support and segment structure, and utilizing the servo support system to actively adjust and intelligently control the forces on the tunnel segments, the special-section tunnel structure has a higher control capability in responding to changes in strata and excavation steps, as well as changes in loads.

[0008] To solve the above technical problems, the present invention provides a servo-controlled intelligent segment structure for tunnels with special cross-sections. The segment structure is composed of mainline tunnel segments and ramp tunnel segments connected to arched steel segments. It adopts a traditional reinforced concrete structure or a steel-concrete composite segment structure and is connected to an internal servo support system.

[0009] The internal servo support system is configured on both sides of the tunnel segments and at the junction of the arched steel-concrete composite segments with the main line tunnel segments and the ramp tunnel segments. It is divided into a main support servo truss, a temporary support servo truss and an auxiliary support servo truss. The three support servo trusses work together to bear the load during the excavation stage of the special-shaped section.

[0010] The hydraulic intelligent servo and locking control system is configured inside the internal servo support system. It provides different support axial forces through intelligent control and locks when the predetermined axial force is reached to ensure safety.

[0011] The main support servo truss, temporary support servo truss and auxiliary support servo truss are all arranged inside the tunnel segment, and their ends are connected to the servo control device.

[0012] The servo control device is connected to the tunnel segment at one end through a connecting device, and is connected to the main support servo truss, or the temporary support servo truss, or the auxiliary support servo truss at the other end.

[0013] The connecting device includes high-strength bolts, sealing elements and a locking mechanism, which screw the servo control device to the tunnel segment.

[0014] The servo control device configures the main support servo truss, temporary support servo truss and auxiliary support servo truss inside the tunnel segment through a connecting device, and adjusts the servo support force and servo structure form according to real-time monitoring of stress and deformation results.

[0015] The hydraulic intelligent servo and locking control system controls the opening, closing and locking of the internal servo support system based on the stress and displacement feedback of the servo control device.

[0016] This invention determines the configuration requirements of the internal servo support system based on the on-site tunnel segment layout plan, optimizing the placement of servo control devices in key stress-bearing areas of the segments. During tunnel excavation and segment installation, a hydraulic intelligent servo and locking control system dynamically adjusts the opening and locking states of the internal servo support system based on stress and displacement feedback from the servo control devices. When complex forces are applied to the tunnel segments, the internal servo support system responds rapidly, actively controlling the magnitude and direction of the support force to transfer external loads to the segment structure and internal support system. Active servo control effectively disperses and dissipates concentrated stresses while resisting deformation and damage.

[0017] The main support servo truss is part of the permanent structure of the segment and is configured as the main load-bearing component in the main load-bearing path and concentrated load-bearing area of ​​the segment structure, including the turning point between the arch and the side wall, and the junction between the arched steel segment of the arch and the main line tunnel segment and the ramp tunnel segment, so as to reduce stress concentration on the special-shaped section;

[0018] The temporary support servo truss is connected to the main support servo truss and the segment structure to transmit axial force, thereby enhancing the overall rigidity of the tunnel and limiting tunnel convergence;

[0019] The auxiliary support servo truss assists in connecting the main support servo truss and the temporary support servo truss to form a stable support network, thereby ensuring the integrity and stability of the entire internal servo support system.

[0020] The number and configuration of the main support servo trusses, temporary support servo trusses, and auxiliary support servo trusses are optimized and adjusted according to the conditions of the tunnel section and the construction site requirements. After part of the pipe segments of the main line tunnel and the ramp tunnel are removed, the temporary support servo trusses, auxiliary support servo trusses and part of the main support servo trusses are gradually removed, and only the main support servo trusses in the key stress-bearing areas are retained, and they are converted into permanent stress-bearing components by locking the servo stroke.

[0021] The servo control device comprises:

[0022] The jack servo head is configured on the surface of the tunnel segment or the connecting device, and acts as an actuator to apply precise supporting axial force and displacement to the tunnel segment;

[0023] The jack hydraulic cylinder is placed in the sleeve, and controls the flow of oil to achieve the extension and retraction of the servo head, thereby adjusting the supporting shaft force and displacement of the jack servo head.

[0024] The pressure sensor is configured inside the jack hydraulic cylinder to monitor the pressure changes inside the cylinder in real time and the jack servo head to ensure that the system operates within the preset safe pressure range;

[0025] The displacement sensor is configured on the outside of the jack's hydraulic cylinder to monitor the displacement of the piston rod in real time and provide feedback on the actual extension and retraction movement of the jack's servo head;

[0026] The mounting base is configured at the ends of the main support servo truss, the temporary support servo truss and the auxiliary support servo truss, and is used to fix the jack hydraulic cylinder and its accessories to ensure their stability and reliability during operation;

[0027] The hydraulic cylinder sleeve is configured to wrap around the hydraulic cylinder of the jack to protect the cylinder from erosion by the external environment. Through its structural design, it optimizes the flow path of the hydraulic oil and improves the response speed and control accuracy of the servo control device.

[0028] The connecting device is configured as a detachable mechanical locking and hydraulically coupled connecting device, one end of which is fastened to the preset connection hole of the tunnel segment through a high-strength bolt, and the other end is connected to the jack servo head through the piston rod of the jack hydraulic cylinder, and the stability of the servo device connection is ensured by the pre-tightening force.

[0029] The hydraulic intelligent servo and locking control system includes an integrated controller, a solenoid valve group and a sensor interface, which controls the oil inlet and return channels of the jack hydraulic cylinder to realize the opening, closing and locking actions of the servo control device.

[0030] The arched steel segments, main line tunnel segments and ramp tunnel segments are arranged on the outer contour of the tunnel with an irregular cross-section, and the cross-sectional structure and the number of segments are adjusted according to the tunnel direction and cross-sectional change requirements.

[0031] The arched steel segments, main line tunnel segments and ramp tunnel segments are connected and spliced ​​using high-strength bolts, and waterproofing and anti-corrosion measures are provided at the joints between adjacent segments.

[0032] The superior effects of the present invention are:

[0033] 1) The traditional segment structure is integrated with the internal servo support system. Through servo control, the segment structure is coordinated with external loads and internal structural forces to balance the structural forces and effectively reduce stress concentration and deformation on irregular sections.

[0034] 2) The introduction of servo control technology changes the passive stress state of traditional segment structures and enables precise and active control of the construction process of special-section tunnel segment structures;

[0035] 3) The connection device and hydraulic intelligent servo and locking control system improve the flexibility and reliability of the support system, reducing construction difficulty and cost;

[0036] 4) Real-time monitoring and adjustment ensure safety during construction and improve the overall quality of the tunnel project. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0038] Figure 1 Schematic diagram of a special-section tunnel segment structure using servo control support in a specific embodiment of the present invention;

[0039] Figure 2 is a schematic diagram of a servo support structure according to a specific embodiment of the present invention;

[0040] Description of the marks in the figure:

[0041] 1—arch-shaped steel-concrete composite segment; 2—mainline tunnel segment;

[0042] 3—Ramp tunnel segments;

[0043] 401—Main support servo truss; 402—Temporary support servo truss;

[0044] 403—auxiliary support servo truss;

[0045] 5—Servo control device;

[0046] 501—Jack servo head; 502—Jack hydraulic cylinder;

[0047] 503—pressure sensor; 504—displacement sensor;

[0048] 505—mounting base; 506—hydraulic cylinder sleeve;

[0049] 6—Connection device; 7—Hydraulic intelligent servo and locking control system. DETAILED DESCRIPTION

[0050] The following describes an embodiment of the present invention in detail with reference to the accompanying drawings. Specifically, in the excavation project where the mainline tunnel and ramp tunnel of the diverging and merging section are merged, the present invention replaces the inclined reinforcement beams and temporary supports at the junction with a servo-controlled support structure. In combination with servo control technology, the servo support force and the form of the servo support truss structure are dynamically adjusted based on real-time monitored force and displacement data, thereby effectively enhancing the stability and safety of the structure.

[0051] like Figure 1 As shown, the present invention provides a servo-controlled intelligent segment structure for tunnels with special cross-sections. The segment structure is composed of a mainline tunnel segment 2 and a ramp tunnel segment 3, each connected to a vault-shaped steel-concrete composite segment 1. The segment structure adopts a traditional reinforced concrete structure or a steel-concrete composite segment structure and is connected to an internal servo support system.

[0052] The internal servo support system is configured on both sides of the tunnel segments and at the junction of the arched steel-concrete composite segment 1 with the main line tunnel segment 2 and the ramp tunnel segment 3. It is divided into a main support servo truss 401, a temporary support servo truss 402, and an auxiliary support servo truss 403. The three servo trusses work together to bear the load during the excavation stage of the special-shaped section.

[0053] The hydraulic intelligent servo and locking control system 7 is configured inside the internal servo support system, provides different support axial forces through intelligent control, and locks when the predetermined axial force is reached to ensure safety.

[0054] The main support servo truss 401 , the temporary support servo truss 402 and the auxiliary support servo truss 403 are all arranged inside the tunnel segment, and their ends are connected to the servo control device 5 .

[0055] The servo control device 5 is connected to the tunnel segment at one end through the connecting device 6 , and is connected to the main support servo truss 401 , or the temporary support servo truss 402 , or the auxiliary support servo truss 403 at the other end.

[0056] The connecting device 6 includes high-strength bolts, seals and a locking mechanism, which screws the servo control device 5 to the tunnel segment;

[0057] The servo control device 5 arranges the main support servo truss 401, the temporary support servo truss 402 and the auxiliary support servo truss 403 inside the tunnel segment through the connecting device 6, and adjusts the servo support force and servo structure according to the real-time monitoring of the force and deformation results;

[0058] The intelligent hydraulic locking control system 7 controls the opening, closing and locking of the servo support structure according to the stress and displacement feedback of the servo control device 5 .

[0059] During implementation of the specific embodiment of the present invention, the configuration requirements for the internal servo support system are determined based on the on-site tunnel segment layout plan, and the servo control devices are optimally positioned in the key stress-bearing areas of the segments. During tunnel excavation and segment installation, the hydraulic intelligent servo and locking control system 7 dynamically adjusts the opening and closing and locking states of the servo support system based on stress and displacement feedback from the servo control devices. When the tunnel segments are subjected to complex forces, the servo support structure responds rapidly, actively controlling the magnitude and direction of the support force to transfer external loads to the segment structure and internal support system. Active servo control effectively disperses and dissipates concentrated stresses, while also resisting deformation and damage.

[0060] like Figure 2 As shown, the main support servo truss 401 is part of the permanent structure of the segment and is configured as the main load-bearing component in the main load-bearing path and concentrated load-bearing area of ​​the segment structure, including the turning point between the arch and the side wall, and the junction between the arched steel segment of the arch and the main line tunnel segment and the ramp tunnel segment, so as to reduce stress concentration on the special-shaped section;

[0061] The temporary support servo truss 402 is connected to the main support servo truss and the segment structure to transmit axial force, thereby enhancing the overall rigidity of the tunnel and limiting tunnel convergence;

[0062] The auxiliary support servo truss 403 assists in connecting the main support servo truss 401 and the temporary support servo truss 402 to form a stable support network, thereby ensuring the integrity and stability of the entire internal servo support system.

[0063] When the specific embodiment of the present invention is implemented, the main support servo truss 401 serves as the main load-bearing structure inside the tunnel segment and is synchronously configured when the segment is assembled to reduce local stress concentration. The temporary support servo truss 402 is installed at the joints of the segments as a reinforcement measure for the vertical connection between the segments to resist displacement and deformation caused by factors such as changes in the tunnel section and geological conditions. The auxiliary support servo truss 403 serves as a connecting structure to transfer the external load received by the segment to the main support servo truss 401 and the temporary support servo truss 402 to improve the overall stiffness and stability of the entire support network system.

[0064] It should be understood that the corresponding positions described in this embodiment are positions that can be understood by those skilled in the art. The number and configuration of the main support servo truss 401, the temporary support servo truss 402, and the auxiliary support servo truss 403 are optimized and adjusted according to the conditions of the tunnel section and the requirements of the construction site. After part of the pipe segments of the main line tunnel and the ramp tunnel are removed, the temporary support servo truss 402, the auxiliary support servo truss 403 and part of the main support servo truss 401 are gradually removed, and only the main support servo truss 401 in the key stress-bearing area is retained, and it is converted into a permanent stress-bearing component by locking the servo stroke.

[0065] When implementing a specific embodiment of the present invention, as a more specific solution, for a mainline tunnel and a ramp tunnel integrated with a steel arch shell using arched segments, the main support servo truss 401 in the key stress-bearing area is subjected to stress in coordination with the segment structure, with one end of the connection being the junction of the arched segment and the tunnel segment, and the other end being the turning point of the tunnel segment side wall.

[0066] As another more specific solution, for a tunnel structure with an irregular cross-section and non-arched segments, the main supporting servo trusses 401 in the key stress-bearing areas are arranged at the segment turning points and segment joints such as the arch, spandrel, waist, and arch foot of the tunnel segment structure.

[0067] like Figure 2 As shown, the servo control device 5 includes:

[0068] The jack servo head 501 is placed on the surface of the tunnel segment or the connecting device 6 and is made of high-strength alloy material. It acts as an actuator to apply precise supporting axial force and displacement to the tunnel segment.

[0069] The jack hydraulic cylinder 502 is placed inside the sleeve and made of high-strength alloy. It is equipped with a high-efficiency hydraulic pump and oil tank system to provide stable and reliable hydraulic power for the cylinder. By controlling the inflow and outflow of oil, the servo head can be extended and retracted, and the support shaft force and displacement of the jack servo head 501 can be adjusted.

[0070] The pressure sensor 503 is configured inside the jack hydraulic cylinder 502 and is used to monitor the pressure changes inside the cylinder in real time. The jack servo head 501 ensures that the system operates within a preset safe pressure range;

[0071] The displacement sensor 504 is configured outside the jack hydraulic cylinder 502 and is used to monitor the displacement of the piston rod in real time and provide feedback on the actual extension and retraction movement of the jack servo head 501;

[0072] The mounting base 505 is disposed at the ends of the main support servo truss 401, the temporary support servo truss 402, and the auxiliary support servo truss 403, and is used to fix the jack hydraulic cylinder 502 and its accessories to ensure their stability and reliability during operation;

[0073] The hydraulic cylinder sleeve 506 is configured to wrap around the jack hydraulic cylinder 502 to protect the cylinder from erosion by the external environment. Through its structural design, the flow path of the hydraulic oil is optimized, thereby improving the response speed and control accuracy of the servo control device 5.

[0074] During implementation of this embodiment of the present invention, a high-precision pressure sensor 503 is integrated within the jack hydraulic cylinder 502 to monitor the operating status and force of the jack servo head 501 in real time. This precisely controls the oil flow and return process of the jack hydraulic cylinder 502, and by adjusting the flow and pressure of the hydraulic oil, the jack servo head provides precise support force. A high-precision displacement sensor 504 is integrated externally within the jack hydraulic cylinder 502 to detect the relative position of the servo control device 5 and the tunnel segment, providing feedback to the hydraulic intelligent servo and locking control system 7.

[0075] The connecting device 6 is configured as a detachable mechanical locking and hydraulic coupling connecting device, one end of which is fastened to the preset connection hole of the tunnel segment through a high-strength bolt, and the other end is connected to the jack servo head 501 through the piston rod of the jack hydraulic cylinder 502, and the stability of the servo device connection is ensured by the pre-tightening force.

[0076] When the specific embodiment of the present invention is implemented, the connecting device 6 includes high-strength bolts, seals and locking mechanisms. The bolts fit tightly with the preset holes on the pipe segments, and the stability of the connection is ensured by the pre-tightening force. The seals and locking mechanisms ensure that when the hydraulic cylinder is not working, the jack servo head 501 and the main line tunnel segment 2 and the ramp tunnel segment 3, and the mounting base 505 and the main support servo truss 401, the temporary support servo truss 402, and the auxiliary support servo truss 403 maintain a stable connection to prevent loosening or falling off.

[0077] The hydraulic intelligent servo and locking control system 7 is configured to include an integrated controller, a solenoid valve assembly, and a sensor interface. It controls the oil inlet and return channels of the jack hydraulic cylinder 502, thereby enabling the opening, closing, and locking of the servo control device 5. When the tunnel segment structure is in a relatively stable state after excavation, during the operational phase after tunnel construction, or under special operating conditions such as natural disasters, and when external loads and geological conditions do not change significantly, the jack servo head 501 needs to be secured and locked to provide stable support. When the tunnel segment is being installed and adjusted, encountering sudden changes in geological conditions during tunnel excavation, compensating for errors during construction, or responding to changes in external loads during tunnel construction and operation, the jack servo head 501 needs to be opened and closed, dynamically adjusting the magnitude and direction of the support force through the travel of the jack servo head 501.

[0078] When a specific embodiment of the present invention is implemented, the integrated controller adopts advanced microprocessor technology and has powerful data processing and logical judgment capabilities. The solenoid valve group controls the oil inlet and return channels of the hydraulic cylinder according to the instructions of the integrated controller to realize the opening, closing and locking actions of the servo head. The sensor interface is used to receive data feedback from the displacement sensor and the pressure sensor, and transmit the data to the controller in real time for processing and analysis.

[0079] The arched steel-concrete composite segments 1, main line tunnel segments 2 and ramp tunnel segments 3 are arranged on the outer contour of the tunnel with an irregular cross-section, and the cross-sectional structure and the number of segments are adjusted according to the tunnel direction and cross-sectional change requirements.

[0080] The arched steel-concrete composite segments 1, the main line tunnel segments 2 and the ramp tunnel segments 3 are connected and spliced ​​using high-strength bolts, and waterproofing and anti-corrosion measures are provided at the joints between adjacent segments.

[0081] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A servo-controlled intelligent segment structure for tunnels with special profiles, characterized by: The segment structure consists of mainline tunnel segments and ramp tunnel segments connected to arched steel segments, and is connected to the internal servo support system. The internal servo support system is configured on both sides of the tunnel segments and at the junction of the arched steel segments with the mainline tunnel segments and ramp tunnel segments. It is divided into the main support servo truss, temporary support servo truss and auxiliary support servo truss. The three are coordinated to bear the force during the excavation stage of the special-shaped section. The hydraulic intelligent servo and locking control system is configured inside the internal servo support system, providing different support axial forces through intelligent control, and locking when the predetermined axial force is reached. The main support servo truss is part of the permanent structure of the segment and is the main load-bearing component, which is arranged in the main load-bearing path and concentrated load-bearing area of ​​the segment structure, including the turning point of the arch and the side wall, and the junction of the arched steel segment of the arch and the main line tunnel segment and the ramp tunnel segment, so as to reduce the stress concentration of the special-shaped section; the temporary support servo truss is connected with the main support servo truss and the segment structure to transmit axial force, so as to enhance the overall stiffness of the tunnel and limit the convergence of the tunnel; the auxiliary support servo truss assists in connecting the main support servo truss and the temporary support servo truss to form a stable support network.

2. The servo-controlled intelligent segment structure for tunnels with special profiles according to claim 1, characterized in that: The main support servo truss, temporary support servo truss and auxiliary support servo truss are all arranged inside the tunnel segment, and their ends are connected to the servo control device.

3. The servo-controlled intelligent segment structure for tunnels with special profiles according to claim 2, characterized in that: The number and configuration of the main support servo trusses, temporary support servo trusses, and auxiliary support servo trusses are optimized and adjusted according to the conditions of the tunnel section and the construction site requirements. After part of the pipe segments of the main line tunnel and the ramp tunnel are removed, the temporary support servo trusses, auxiliary support servo trusses and part of the main support servo trusses are gradually removed, and only the main support servo trusses in the key stress-bearing areas are retained, and they are transformed into permanent stress-bearing components by locking the servo stroke.

4. The servo-controlled intelligent tunnel segment structure with special-shaped sections according to claim 2, characterized in that: The servo control device comprises: The jack servo head is configured on the surface of the tunnel segment or the connecting device, and acts as an actuator to apply precise supporting axial force and displacement to the tunnel segment; The jack hydraulic cylinder is placed in the sleeve, and controls the flow of oil to achieve the extension and retraction of the servo head, thereby adjusting the supporting shaft force and displacement of the jack servo head. The pressure sensor is configured inside the hydraulic cylinder of the jack to monitor the pressure changes inside the cylinder in real time, thereby monitoring the working status and force of the jack servo head in real time; The displacement sensor is configured on the outside of the jack's hydraulic cylinder to monitor the displacement of the piston rod in real time and provide feedback on the actual extension and retraction movement of the jack's servo head; An installation base is configured at the ends of the main support servo truss, the temporary support servo truss and the auxiliary support servo truss, and fixes the jack hydraulic cylinder; The hydraulic cylinder sleeve is configured to wrap around the jack hydraulic cylinder.

5. The servo-controlled intelligent tunnel segment structure with special-shaped sections according to claim 4, characterized in that: The connecting device is configured as a detachable mechanical locking and hydraulic coupling connecting device, one end of which is fastened to the preset connection hole of the tunnel segment through a high-strength bolt, and the other end is connected to the jack servo head through the piston rod of the jack hydraulic cylinder.

6. The servo-controlled intelligent tunnel segment structure with special-shaped sections according to claim 1, characterized in that: The hydraulic intelligent servo and lock control system includes an integrated controller, a solenoid valve group, and a sensor interface, which controls the oil inlet and return channels of the jack hydraulic cylinder and controls the opening, closing, and locking actions of the servo control device.

7. The servo-controlled intelligent tunnel segment structure with special-shaped sections according to claim 1, characterized in that: The arched steel segments, main line tunnel segments and ramp tunnel segments are arranged on the outer contour of the tunnel with an irregular cross-section, and the cross-sectional structure and the number of segments are adjusted according to the tunnel direction and cross-sectional change requirements.

8. The servo-controlled intelligent segment structure for tunnel with special-shaped sections according to claim 7, characterized in that: The arched steel segments, mainline tunnel segments and ramp tunnel segments are connected and spliced ​​using high-strength bolts, and waterproofing and anti-corrosion measures are provided at the joints between adjacent segments.

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