Reinforcing device for shield to pass through viaduct

Abstract

The utility model discloses a reinforcing device for a shield to pass through a viaduct, which belongs to the technical field of shield tunnel construction and comprises a support component and a reinforcing component. Wherein the supporting assembly is connected with a beam column of the viaduct; the reinforcing assembly comprises a driving piece, a tension detection piece and a connecting arm, the driving piece is arranged on the supporting assembly, one end of the connecting arm is connected with the pile foundation, the other end of the connecting arm is connected with the driving piece, the tension detection piece is connected with the connecting arm, and the tension detection piece can detect tension applied to the connecting arm by the pile foundation; the tension detection piece generates prompt information, and the driving piece can drive the connecting arm to move in the axial direction of the connecting arm, so that the pile foundation is driven to move in the direction opposite to the first linear direction. Through cooperation of the supporting assembly and the reinforcing assembly, the position of the pile foundation can be automatically adjusted, thrust of a shield to the pile foundation is balanced, the pile foundation is prevented from deviating, and fixing of the pile foundation and stability of the viaduct are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of shield tunnel construction, in particular to a reinforcement device for a shield tunnel crossing a viaduct. Background Art

[0002] The shield machine is an important equipment used in tunnel construction. Through its rotating cutting head, it can penetrate various strata and construct underground tunnels. However, with the rapid development of urbanization today, tunnel projects often need to pass through existing infrastructure, such as viaducts. The pile foundations of viaducts are usually made of concrete or reinforced concrete, which has high bearing capacity and stability. When the shield machine passes through these pile foundations, it may need to directly cut the pile foundations, which may have a serious impact on the overall structural stability of the bridge.

[0003] Traditional crossing techniques usually involve pre-reinforcement of the pile foundation before the shield machine reaches it, but these methods are often complex, costly and time-consuming. In addition, even with reinforcement, there is still a risk that the pile foundation will move to one side due to uneven stress during the cutting process. This deviation will not only have a long-term impact on the service life of the bridge, but may also cause safety accidents during construction. Utility Model Content

[0004] The utility model aims to provide a reinforcement device for a shield machine passing through a viaduct, so as to solve the technical problem in the prior art that the pile foundation of the viaduct will be unevenly stressed and deviated when the shield machine passes through the viaduct.

[0005] As conceived above, the technical solution adopted by the utility model is:

[0006] A reinforcement device for a shield machine passing through a viaduct, comprising:

[0007] A support assembly connected to a beam column of the viaduct;

[0008] A reinforcement component, the reinforcement component includes a driving member, a tension detection member and a connecting arm, the driving member is arranged on the supporting member, one end of the connecting arm is connected to the pile foundation, the other end of the connecting arm is connected to the driving member, the tension detection member is connected to the connecting arm, the tension detection member can detect the tension applied by the pile foundation to the connecting arm, when the tension exceeds the critical tension value, the tension detection member generates a prompt message, and the driving member can drive the connecting arm to move along its own axial direction, thereby driving the pile foundation to move in the opposite direction of the first straight line direction.

[0009] Preferably, the support assembly comprises a support frame and a fixed block, the support frame is fixedly connected to the beam column, the fixed block and the support frame are arranged at a first angle, and the driving member is connected to the fixed block.

[0010] Preferably, the fixing block and the supporting frame are hinged, and the degree of the first angle can be adjusted by rotating the fixing block.

[0011] Preferably, the tension detection member is arranged between the connecting arm and the driving member, one end of the tension detection member is connected to the connecting arm, the other end of the tension detection member is electrically connected to the driving member, and the tension detection member, the driving member and the connecting arm are coaxially arranged.

[0012] Preferably, the connecting arm comprises at least two connecting sleeves which are coaxially sleeved on each other in sequence, wherein one of the connecting sleeves can be locked in the other connecting sleeve.

[0013] Preferably, a connecting portion is provided at one end of the connecting arm close to the pile foundation, a mounting block is provided on the pile foundation, and the connecting portion is detachably connected to the mounting block.

[0014] Preferably, the outer periphery of the connecting portion is provided with threads, the mounting block is provided with a threaded hole, and the connecting portion is threadedly connected to the threaded hole.

[0015] Preferably, the driving member is a hydraulic cylinder.

[0016] Preferably, the tension detection member is an axial force gauge.

[0017] Preferably, a displacement sensor is provided on the pile foundation, and the displacement sensor can record the displacement distance of the pile foundation along the first straight line direction and generate prompt information.

[0018] Beneficial effects of the utility model:

[0019] During the use of the shield, since the shield moves along the first straight line direction at the bottom of the viaduct, it is inevitable that thrust will be applied to the pile foundation during the construction process, causing the pile foundation to deviate in the first direction. The reinforcement device for the shield crossing the viaduct proposed by the utility model, since one end of the connecting arm is connected to the pile foundation, and the other end of the connecting arm is connected to the driving member, so that when the pile foundation deviates along the first direction, a pulling force will be applied to the connecting arm. Through the cooperation of the support component and the reinforcement component, the tension detection component can detect the pulling force applied by the pile foundation to the connecting arm in real time, and generate a prompt message when the pulling force exceeds the critical value. When the pulling force exceeds the critical value, the driving member drives the connecting arm to move along its own axial direction, thereby driving the pile foundation to move in the opposite direction of the first straight line direction to offset the deflection effect caused by the shield driving the pile foundation, so that the pile foundation returns to the initial position. Through the coordinated cooperation of the support component and the reinforcement component, the position of the pile foundation can be automatically adjusted, the thrust caused by the shield on the pile foundation can be balanced, the pile foundation can be prevented from deviating, and the pile foundation can be fixed and the stability of the viaduct can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a side view of a reinforcement device for a shield machine passing through a viaduct provided by an embodiment of the utility model;

[0021] Figure 2 It is a front view of a reinforcement device for a shield machine passing through a viaduct provided by an embodiment of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the connection between the reinforcement assembly and the pile foundation provided by an embodiment of the utility model.

[0023] In the figure:

[0024] 100, viaduct; 200, beam column; 300, pile foundation; 301, mounting block; 400, shield;

[0025] 10. Support assembly; 11. Support frame; 12. Fixing block; 101. First angle;

[0026] 20. Reinforcement assembly; 21. Driving member; 22. Tension detection member; 23. Connecting arm; 231. Connecting part. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0031] The embodiment of the utility model provides a reinforcement device for a shield machine passing through an elevated bridge, which can realize the reinforcement process of the pile foundation at the bottom of the elevated bridge and prevent the pile foundation from being driven to deviate during the movement of the shield machine, thereby causing safety hazards.

[0032] See also Figures 1 to 3 The reinforcement device for a shield machine passing through an elevated bridge provided by the embodiment of the utility model includes a support assembly 10 and a reinforcement assembly 20. Among them, the support assembly 10 is connected to the beam column 200 of the elevated bridge 100; the reinforcement assembly 20 includes a driving member 21, a tension detection member 22 and a connecting arm 23, the driving member 21 is arranged on the support assembly 10, one end of the connecting arm 23 is connected to the pile foundation 300, and the other end of the connecting arm 23 is connected to the driving member 21, the tension detection member 22 is connected to the connecting arm 23, the tension detection member 22 can detect the tension applied by the pile foundation 300 to the connecting arm 23, when the tension exceeds the critical tension value, the tension detection member 22 generates a prompt message, the driving member 21 can drive the connecting arm 23 to move along its own axial direction, thereby driving the pile foundation 300 to move in the opposite direction of the first straight line direction.

[0033] It is understandable that the shield machine 400 is a conventional device in the art, and its working principle and specific structure are not described in detail here.

[0034] Generally speaking, the pile foundation 300 is placed vertically perpendicular to the ground. The first straight line direction is defined as the horizontal direction. For the convenience of description in conjunction with the drawings, the directions below are described in accordance with the directions shown in the drawings, but are not limited thereto.

[0035] During the use of the shield 400, since the shield 400 moves along the first straight line direction at the bottom of the viaduct 100, it is inevitable that a thrust will be applied to the pile foundation 300 during the construction process, causing the pile foundation 300 to deviate in the first direction. The reinforcement device for the shield crossing the viaduct proposed in the utility model, since one end of the connecting arm 23 is connected to the pile foundation 300, and the other end of the connecting arm 23 is connected to the driving member 21, when the pile foundation 300 deviates in the first direction, a pulling force will be applied to the connecting arm 23. Through the cooperation of the support component 10 and the reinforcement component 20, the tension detection member 22 can detect the tension applied by the pile foundation 300 to the connecting arm 23 in real time, and generate a prompt message when the tension exceeds the critical value. When the tension exceeds the critical value, the driving member 21 drives the connecting arm 23 to move along its own axial direction, thereby driving the pile foundation 300 to move in the opposite direction of the first straight line direction to offset the deflection effect caused by the shield 400 driving the pile foundation 300, so that the pile foundation 300 returns to the initial position. Through the coordinated cooperation of the support component 10 and the reinforcement component 20, the position of the pile foundation 300 can be automatically adjusted, the thrust caused by the shield 400 on the pile foundation 300 can be balanced, the pile foundation 300 can be prevented from deflecting, and the fixation of the pile foundation 300 and the stability of the viaduct 100 can be ensured.

[0036] Regarding the support assembly 10, the support assembly 10 includes a support frame 11 and a fixed block 12. The support frame 11 is fixedly connected to the beam column 200. The fixed block 12 and the support frame 11 are arranged at a first angle 101, and the driving member 21 is connected to the fixed block 12. The support frame 11 is fixedly connected to the beam column 200, and has higher stability; the fixed block 12 makes the force transmission path of the driving member 21 more reasonable. By setting the first angle 101, the position of the fixed block 12 relative to the pile foundation 300 can be made more reasonable, so that the movement path of the connecting arm 23 is not interfered, and the connecting arm 23 is prevented from being interfered and unable to move.

[0037] Specifically, the fixed block 12 is hinged to the support frame 11, and the degree of the first angle 101 can be adjusted by rotating the fixed block 12. Since the heights of the pile foundation 300 and the beam column 200 are different in actual working conditions, the hinged setting of the fixed block 12 and the support frame 11 can have higher flexibility, so that the operator can accurately adjust the first angle 101 according to the specific construction environment and needs, so as to adjust the driving member 21 to a suitable position, so that the driving member 21 can drive the connecting arm 23 to move normally. In this embodiment, the setting range of the first angle 101 is greater than or equal to 90 degrees and less than or equal to 180 degrees.

[0038] The tension detection member 22 is arranged between the connecting arm 23 and the driving member 21, one end of the tension detection member 22 is connected to the connecting arm 23, the other end of the tension detection member 22 is electrically connected to the driving member 21, and the tension detection member 22, the driving member 21 and the connecting arm 23 are coaxially arranged. The tension detection member 22 is coaxially arranged with the driving member 21 and the connecting arm 23, which ensures that the force transmission path is simple and direct, reduces the error in the force transmission process, and improves the detection accuracy. At the same time, the coaxial design of the three also simplifies the structure of the device and reduces the complexity of installation and maintenance.

[0039] Specifically, in this embodiment, the tension detection member 22 uses an axial force meter. The axial force meter measures the tension through a sensor and transmits the data to the control system. The control system can analyze the received data in real time. When the detected tension exceeds the preset critical tension value, the system will immediately generate a prompt message to operate the drive member 21 to work. It can be understood that the axial force meter is an existing mechanical device in the field, and its specific structure and working principle will not be described in detail here. In other embodiments, the tension detection member 22 can also use an existing tension meter, which is not limited here.

[0040] In this embodiment, the driving member 21 is a hydraulic cylinder. The hydraulic cylinder has high output force and stability, and can provide sufficient driving force to realize the movement of the pile foundation 300, ensuring the effective operation of the reinforcement device. Specifically, the hydraulic pump is connected to the hydraulic cylinder, and the telescopic end of the hydraulic cylinder is connected to the connecting arm 23. The hydraulic cylinder is driven by the hydraulic pump to be telescopic, thereby driving the connecting arm 23 connected thereto to move, so as to realize the movement process of the pile foundation 300. Both the hydraulic cylinder and the hydraulic pump are selected from existing technical equipment in the field, and their working principles and specific structures are not described in detail here. In addition, in other embodiments, the driving member 21 can also be a cylinder, etc., which is not limited here.

[0041] In order to further enhance the reliability of the tension detection member 22, a vibration damping member is provided between the tension detection member 22 and the driving member 21. When the tension changes greatly, the vibration damping member can effectively absorb part of the impact force, protect the tension detection member 22 and the driving member 21, and extend their service life. The vibration damping member can be selected from springs, rubber pads, etc., which are not limited here.

[0042] In addition, cables and waterproof covers are provided at the electrical connection part 231 of the tension detection member 22 and the driving member 21 to ensure the stability and safety of the electrical connection. The cables have anti-interference performance and can avoid the influence of external electromagnetic interference on the detection signal. The waterproof cover can effectively prevent environmental factors such as water flow and sediment from damaging the electrical connection, ensuring the normal operation of the tension detection member 22 and the driving member 21 in various complex construction environments.

[0043] Since the heights of the pile foundation 300 and the beam column 200 are different in actual working conditions, in order to improve the applicability of the connecting arm 23, the connecting arm 23 includes at least two connecting sleeves that are coaxially sleeved in sequence, one of which can be locked in the other connecting sleeve, so that the length of the connecting arm 23 can be adjusted according to actual needs, thereby improving the flexibility and adaptability of the connecting arm 23. Specifically, the connecting sleeve includes an inner sleeve and an outer sleeve, the diameter of the inner sleeve is slightly smaller than that of the outer sleeve, and the inner sleeve can be slidably inserted into the inner sleeve. Buckles are respectively provided on the inner sleeve and the outer sleeve, and the two sleeves can be fixed at the required length position by the buckles.

[0044] In order to ensure the reliability of the locking of the connecting sleeve, the locking positions of the inner sleeve and the outer sleeve are provided with a plurality of corresponding locking holes. When the length of the connecting arm 23 needs to be adjusted, it is only necessary to slide the inner sleeve to a suitable position, align the locking holes, and then fix it by snapping, which not only improves the convenience of operation, but also ensures that the connecting arm 23 at different lengths has sufficient strength and stability. In addition, the surface of the connecting sleeve is provided with scale marks so that the operator can quickly adjust the length of the connecting arm 23 according to actual needs, which not only improves the convenience of operation, but also saves time during the construction process and improves work efficiency.

[0045] In order to facilitate the connection between the connecting wall and the pile foundation 300, a connecting portion 231 is provided at one end of the connecting arm 23 close to the pile foundation 300, and a mounting block 301 is provided on the pile foundation 300, and the connecting portion 231 is detachably connected to the mounting block 301. Thus, the connecting arm 23 can be conveniently connected to and disassembled from the pile foundation 300, thereby improving the disassembly and assembly efficiency and facilitating transportation.

[0046] Specifically, the outer periphery of the connecting portion 231 is provided with threads, and the mounting block 301 is provided with threaded holes, and the connecting portion 231 is threadedly connected to the threaded holes. The threaded connection not only ensures the firmness and reliability of the connection between the connecting portion 231 and the mounting block 301, but also facilitates the disassembly and assembly by the operator. In the specific implementation process, the connecting portion 231 is designed as a joint with a standard thread size to adapt to mounting blocks 301 of different specifications. The threaded hole on the mounting block 301 matches the thread of the connecting portion 231 to ensure that the two can fit tightly. During installation, the operator only needs to align the connecting portion 231 with the threaded hole and rotate the connecting portion 231 until it is completely screwed into the threaded hole to form a firm connection.

[0047] In order to further improve the firmness of the connection, a sealing ring can be provided at the threaded connection. The sealing ring is provided at the thread root of the connection part 231. When the connection part 231 is screwed into the threaded hole, the sealing ring is compressed, which increases the friction of the connection and prevents the connection from loosening during use. It also plays a sealing role to prevent water or other impurities from entering the connection. The use of the threaded connection part 231 and the mounting block 301 can significantly improve the construction efficiency. The operator only needs simple tools to complete the installation and disassembly, which reduces the complexity of the operation and the required professional skills. The threaded connection method also has good self-locking ability, which can maintain the stability and reliability of the connection during long-term use.

[0048] In order to further improve the accuracy of the pile foundation 300 during movement and improve the operation accuracy, a displacement sensor is provided on the pile foundation 300, which can record the displacement distance of the pile foundation 300 along the first straight line direction and generate prompt information. The displacement sensor can monitor the displacement of the pile foundation 300 in real time, provide effective monitoring data, and help construction personnel adjust the construction plan in time to ensure the stability of the pile foundation 300 and the viaduct 100 structure.

[0049] Specifically, a displacement sensor is installed on the pile foundation 300 to ensure that the sensor can accurately monitor the displacement of the pile foundation 300 along the first straight line direction. The displacement sensor is electrically connected to the control system to ensure that the sensor signal can be transmitted to the control system in real time. Before construction, the displacement sensor and the control system are debugged and calibrated. After the pile foundation 300 moves, a known displacement is applied to the displacement sensor to check whether its output data is accurate, and necessary adjustments are made according to the results to ensure the measurement accuracy of the sensor and the stability of the system. During the construction process, the displacement of the pile foundation 300 is monitored in real time by the displacement sensor, and the data is transmitted to the control system and displayed in real time on the display terminal. The operator can check the displacement data at any time to ensure that the displacement of the pile foundation 300 during the construction process is within a safe range. When the displacement monitored by the displacement sensor exceeds the preset threshold, the control system will automatically generate a prompt message to remind the construction personnel to check and adjust the construction plan in time to ensure the stability of the pile foundation 300 and the viaduct 100 structure. After the construction is completed, all data recorded by the displacement sensor will be saved for analysis and evaluation after the construction.

[0050] It is understandable that the displacement sensor uses existing mechanical equipment, and its specific structure and working principle are not described in detail here.

[0051] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A reinforcement device for a shield machine passing through an elevated bridge, wherein the shield machine (400) moves along a first straight line direction at the bottom of the elevated bridge (100), characterized in that: include: A support assembly (10), the support assembly (10) being connected to a beam column (200) of the viaduct (100); A reinforcement component (20), the reinforcement component (20) comprising a driving member (21), a tension detection member (22) and a connecting arm (23), the driving member (21) being arranged on the supporting component (10), one end of the connecting arm (23) being connected to the pile foundation (300), the other end of the connecting arm (23) being connected to the driving member (21), the tension detection member (22) being connected to the connecting arm (23), the tension detection member (22) being capable of detecting the tension applied by the pile foundation (300) to the connecting arm (23), when the tension exceeds a critical tension value, the tension detection member (22) generating a prompt message, the driving member (21) being capable of driving the connecting arm (23) to move along its own axial direction, thereby driving the pile foundation (300) to move in the opposite direction of the first straight line direction.

2. The reinforcement device for a shield machine passing through a viaduct according to claim 1, characterized in that: The support assembly (10) comprises a support frame (11) and a fixed block (12); the support frame (11) is fixedly connected to the beam column (200); the fixed block (12) and the support frame (11) are arranged at a first angle (101); and the driving member (21) is connected to the fixed block (12).

3. The reinforcement device for a shield machine passing through a viaduct according to claim 2, characterized in that: The fixing block (12) and the supporting frame (11) are hinged, and the degree of the first angle (101) can be adjusted by rotating the fixing block (12).

4. The reinforcement device for a shield machine passing through a viaduct according to claim 1, characterized in that: The tension detection member (22) is arranged between the connecting arm (23) and the driving member (21); one end of the tension detection member (22) is connected to the connecting arm (23); the other end of the tension detection member (22) is electrically connected to the driving member (21); and the tension detection member (22), the driving member (21) and the connecting arm (23) are coaxially arranged.

5. The reinforcement device for a shield machine passing through a viaduct according to claim 1, characterized in that: The connecting arm (23) comprises at least two connecting sleeves which are coaxially sleeved one on the other in sequence, wherein one of the connecting sleeves can be locked in the other connecting sleeve.

6. The reinforcement device for a shield machine passing through a viaduct according to claim 1, characterized in that: A connecting portion (231) is provided at one end of the connecting arm (23) close to the pile foundation (300), a mounting block (301) is provided on the pile foundation (300), and the connecting portion (231) is detachably connected to the mounting block (301).

7. The reinforcement device for a shield machine passing through a viaduct according to claim 6, characterized in that: The outer periphery of the connecting portion (231) is provided with threads, the mounting block (301) is provided with a threaded hole, and the connecting portion (231) is threadedly connected to the threaded hole.

8. The reinforcement device for a shield machine passing through a viaduct according to any one of claims 1 to 7, characterized in that: The driving member (21) is a hydraulic cylinder.

9. The reinforcement device for a shield machine passing through a viaduct according to any one of claims 1 to 7, characterized in that: The tension detection member (22) is an axial force meter.

10. The reinforcement device for a shield machine passing through a viaduct according to any one of claims 1 to 7, characterized in that: A displacement sensor is arranged on the pile foundation (300), and the displacement sensor can record the displacement distance of the pile foundation (300) along the first straight line direction and generate prompt information.

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