Anti-seismic supporting structure for tunnel lining

Abstract

The utility model relates to a tunnel lining anti-seismic supporting structure which comprises a moving frame, moving assemblies are arranged on the two sides of the lower portion of the moving frame, and an adjusting assembly is arranged in the moving frame. The adjusting assembly comprises a motor, the motor is arranged in the moving frame, the output end of the motor is fixedly connected with a first transmission wheel, the first transmission wheel is installed on the upper portion of the moving frame, a second transmission wheel is installed in the middle of the moving frame, and the first transmission wheel is connected with the second transmission wheel through a transmission belt. A lead screw is in threaded connection with the interior of the second transmission wheel, a transverse plate is fixedly connected to the top of the lead screw, and a damping assembly is arranged on the upper portion of the transverse plate. According to the utility model, the height of the arc-shaped supporting plate is convenient to adjust, the arc-shaped supporting plate can be tightly attached to the tunnel surrounding rock to form a complete surrounding rock support, and the stability of the whole tunnel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel support structures, in particular to a tunnel lining anti-seismic support structure. Background Art

[0002] A tunnel refers to an artificial passage of a certain length and function built beneath the surface or in geological media such as mountains, underground, and the seabed. Tunnels are usually used for transportation, water supply, drainage, communication, electricity, etc., and are also one of the important forms of underground space development in modern cities. During the tunnel construction process, especially in earthquake-prone areas or areas with complex geological conditions, the use of seismic support structures is crucial. Its purpose is to ensure the safety of the tunnel structure during an earthquake, avoid surrounding rock instability, tunnel collapse or permanent damage caused by earthquakes, and at the same time ensure the safety of personnel and equipment during construction.

[0003] During use, traditional seismic support structures install steel arches to support the surrounding rock. Then, the arches and surrounding rock are integrated with anchor rods, steel mesh, and shotcrete. Although this method can complete the support of the tunnel, the height of the traditional support structure is fixed and cannot be adjusted in time. As a result, the support structure cannot match the actual surrounding rock conditions and cannot form a complete surrounding rock support, affecting the stability of the entire tunnel. Summary of the Invention

[0004] In order to make up for the above shortcomings, the utility model provides a tunnel lining seismic support structure, which aims to improve the problem that the height of traditional support structures in the existing technology is fixed and the support height cannot be adjusted in time, resulting in the support structure being unable to match the actual surrounding rock conditions and unable to form a complete surrounding rock support.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A tunnel lining seismic support structure includes a mobile frame, mobile components are provided on both sides of the lower part of the mobile frame, and an adjustment component is provided inside the mobile frame;

[0007] The adjusting component includes a motor, which is arranged inside the movable frame, and the output end of the motor is fixedly connected to a transmission wheel 1, the transmission wheel 1 is installed on the upper part of the movable frame, and a transmission wheel 2 is installed in the middle part of the movable frame, the transmission wheel 1 is connected to the transmission wheel 2 through a transmission belt, the transmission wheel 2 is internally threaded with a screw rod, the top of the screw rod is fixedly connected to a horizontal plate, the upper part of the horizontal plate is provided with a shock absorbing component, the bottom of the screw rod is fixedly connected to a connecting plate, and the horizontal plate and the middle of the connecting plate are fixedly connected with guide rods around.

[0008] Furthermore, the shock absorbing assembly includes a damper, which is fixedly connected to the upper middle part of the horizontal plate, and the output end of the damper is fixedly connected to the support plate. U-shaped rods are fixedly connected to both sides of the upper part of the horizontal plate, and sliders are slidably connected to the outer sides of the two U-shaped rods. Buffer springs are fixedly connected to the outer sides of multiple sliders, and multiple buffer springs are sleeved on both sides of the outer sides of the two U-shaped rods. The upper parts of multiple sliders are rotatably connected to buffer plates, and the tops of multiple buffer plates are rotatably connected to the lower part of the support plate. The upper part of the support plate is fixedly connected to an arc-shaped support plate.

[0009] Furthermore, the moving assembly includes a mounting plate, which is fixedly connected to both sides of the interior of the moving frame, and rollers are installed on both sides of the lower part of the two mounting plates.

[0010] Furthermore, through holes are provided on all four sides of the interior of the movable frame, and the plurality of guide rods are slidably connected inside the plurality of through holes.

[0011] Furthermore, a mounting ring is fixedly connected inside the movable frame, and the motor is fixedly connected inside the mounting ring.

[0012] Furthermore, the material of the arc-shaped support plate is alloy steel.

[0013] Furthermore, both sides of the exterior of the mounting plate are threadedly connected with fixing cones, and a knob is fixedly connected to the top of the fixing cone.

[0014] Furthermore, the movable frame is made of stainless steel.

[0015] The utility model has the following beneficial effects:

[0016] In the utility model, by starting the motor, the transmission wheel 1, the transmission belt and the transmission wheel 2 are driven to rotate, and the transmission wheel 2 drives the threaded screw to move upward, and the screw pushes the fixed horizontal plate and the upper arc-shaped support plate to move upward synchronously. After the arc-shaped support plate is fitted with the top of the tunnel, a complete surrounding rock support is formed, thereby improving the stability of the tunnel.

[0017] In the utility model, when gravel falls from the inner wall of the tunnel to the arc-shaped support plate, the support plate transmits the force to the support plate, and then the contraction of the damper drives the buffer plate and the slider to move around. The slider squeezes the buffer spring to produce deformation and absorb the impact force, thereby reducing the stress and wear of the support structure, extending the service life and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of a tunnel lining seismic support structure proposed in the utility model.

[0019] Figure 2This is a schematic diagram of the motor structure of a tunnel lining seismic support structure proposed in the utility model.

[0020] Figure 3 This is a schematic diagram of the guide rod structure of a tunnel lining seismic support structure proposed by the utility model.

[0021] Figure 4 This is a schematic diagram of the upper structure of the transverse plate of a tunnel lining seismic support structure proposed in the utility model.

[0022] Figure 5 for Figure 4 A magnified view of the structure in the middle.

[0023] Legend:

[0024] 1. Moving frame; 2. Mounting plate; 3. Roller; 4. Fixing cone; 5. Knob; 6. Mounting ring; 7. Motor; 8. Transmission wheel 1; 9. Transmission belt; 10. Transmission wheel 2; 11. Screw; 12. Guide rod; 13. Cross plate; 14. Through hole; 15. Damper; 16. Support plate; 17. U-shaped rod; 18. Slider; 19. Buffer plate; 20. Buffer spring; 21. Arc support plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Reference Figure 1-Figure 3 The utility model provides an embodiment of a tunnel lining seismic support structure, comprising a mobile frame 1, wherein mobile components are provided on both sides of the lower portion of the mobile frame 1, and the support structure is convenient to move by providing the mobile components. An adjustment component is provided inside the mobile frame 1, and the height of the support structure is convenient to adjust by providing the adjustment component. The mobile component comprises a mounting plate 2, which is fixedly connected to both sides of the interior of the mobile frame 1, and rollers 3 are installed on both sides of the lower portion of the two mounting plates 2. By providing the mounting plate 2, it is convenient to install the rollers 3, and by providing the rollers 3, it is convenient to move the support structure. The outer sides of the mounting plate 2 are threadedly connected with a fixing cone 4, and the top of the fixing cone 4 is fixedly connected with a knob 5. During support, the fixing cone 4 fixed at the lower portion is moved by rotating the knob 5, and the fixing cone 4 is inserted into the soil to complete the fixation of the support structure. The material of the mobile frame 1 is stainless steel. Stainless steel has excellent strength and toughness and can withstand high loads and complex stress conditions in tunnel construction.

[0027] The adjusting component includes a motor 7, which is arranged inside the mobile frame 1. The output end of the motor 7 is fixedly connected to a transmission wheel 8, and the transmission wheel 8 is installed in the upper part of the mobile frame 1. A transmission wheel 2 10 is installed in the middle part of the mobile frame 1. The transmission wheel 18 is connected to the transmission wheel 2 10 through a transmission belt 9. The transmission wheel 2 10 is internally threaded with a screw rod 11, and the top of the screw rod 11 is fixedly connected to a cross plate 13. A shock-absorbing component is provided on the upper part of the cross plate 13 to extend the service life of the support structure. The bottom of the screw rod 11 is fixedly connected to a connecting plate, and the cross plate 13 and the middle of the connecting plate are fixedly connected with guide rods 12 all around. Through holes 14 are opened around the inside of the mobile frame 1, and multiple guide rods 12 are slidably connected to the inside of multiple through holes 14. The movement of the guide rods 12 is facilitated by providing the through holes 14. The inside of the mobile frame 1 is fixedly connected with a mounting ring 6, and the motor 7 is fixedly connected to the inside of the mounting ring 6. The mounting ring 6 is provided to facilitate the fixing of the motor 7.

[0028] Specifically, when the height of the arc-shaped support plate 21 needs to be adjusted, the motor 7 is started, and the rotation of the motor 7 drives the transmission wheel 1 8 fixed at its output end to rotate. At the same time, the transmission wheel 1 8 drives the transmission wheel 2 10 to rotate through the connected transmission belt 9. The rotation of the transmission wheel 2 10 will further drive the screw rod 11 with its internal thread connection to move. Since the top of the screw rod 11 is fixedly connected to the cross plate 13, the cross plate 13 will also move synchronously with the movement of the screw rod 11. As the cross plate 13 moves, the arc-shaped support plate 21 fixed on its upper part will also be adjusted upward. When the top of the arc-shaped support plate 21 is completely in contact with the tunnel surrounding rock during the adjustment process, the height adjustment process is completed. Through this design, the dynamic adjustment function of the support plate height can be realized, ensuring that the support plate can completely fit the surrounding rock, avoiding the phenomenon of inadequate support, and improving the stability of the entire tunnel.

[0029] Reference Figure 4-Figure 5 The shock absorption assembly includes a damper 15, which is fixedly connected to the upper middle part of the cross plate 13, and the output end of the damper 15 is fixedly connected to a support plate 16. U-shaped rods 17 are fixedly connected to both sides of the upper part of the cross plate 13, and sliders 18 are slidably connected to the outer sides of the two U-shaped rods 17. Buffer springs 20 are fixedly connected to the outside of multiple sliders 18. By setting buffer springs 20, the force received can be absorbed. Multiple buffer springs 20 are sleeved on both sides of the outer sides of the two U-shaped rods 17, and the upper parts of multiple sliders 18 are rotatably connected to buffer plates 19. The tops of multiple buffer plates 19 are rotatably connected to the lower part of the support plate 16. An arc-shaped support plate 21 is fixedly connected to the upper part of the support plate 16. The arc-shaped support plate 21 is played a role in supporting the tunnel by setting the arc-shaped support plate 21. The material of the arc-shaped support plate 21 is alloy steel. Alloy steel maintains good toughness and plasticity while having high strength, and can withstand impact loads without brittle fracture.

[0030] Specifically, when obstacles such as gravel on the inner wall of the tunnel fall onto the surface of the arc-shaped support plate 21, the arc-shaped support plate 21 first bears the impact force of the falling object and transmits the force to the support plate 16. Subsequently, the support plate 16 further transmits the force to the damper 15. The damper 15 will elastically contract after receiving the force, driving the support plate 16 to move downward. As the support plate 16 moves, the buffer plate 19 connected to the four rotations at the bottom will move around accordingly. In the process of the movement of the four buffer plates 19, the buffer plate 19 will drive the four sliders 18 connected to the bottom to slide around along the outside of the two U-shaped rods 17. The outside of the slider 18 A buffer spring 20 is fixed. When the slider 18 moves, pressure is applied to the buffer spring 20, causing the buffer spring 20 to deform after being subjected to force. In this process, the impact force generated by the falling object is transmitted and dispersed step by step, and finally the impact energy is absorbed by the elastic deformation of the buffer spring 20. Through the force deformation of the buffer spring 20, the force generated by the falling object is effectively absorbed and buffered, reducing the direct force and wear of the support structure, greatly reducing the load directly borne by the arc support plate 21 and other support structures, and reducing the probability of structural deformation or damage, thereby extending the service life of the support structure and reducing maintenance costs.

[0031] Working principle: When the height of the arc-shaped support plate 21 needs to be adjusted, the motor 7 is started, and the motor 7 drives the transmission wheel 1 8 fixed at the output end to rotate. The transmission wheel 1 8 rotates and drives the transmission wheel 2 10 through the transmission belt 9. The transmission wheel 2 10 rotates and drives the screw rod 11 connected with the internal thread to move upward. The screw rod 11 moves and drives the cross plate 13 fixed on the top to move synchronously. When the cross plate 13 moves, the arc-shaped support plate 21 installed on the top moves upward synchronously. When the arc-shaped support plate 21 is in contact with the top of the tunnel, the height of the arc-shaped support plate 21 can be easily adjusted, ensuring that the arc-shaped support plate 21 can be in close contact with the tunnel surrounding rock, forming a complete surrounding rock support, and improving the stability of the entire tunnel.

[0032] When obstacles such as gravel on the inner wall of the tunnel fall onto the surface of the arc-shaped support plate 21, the arc-shaped support plate 21 will transfer force to the support plate 16, and then the support plate 16 will transfer force to the damper 15. The damper 15 contracts and moves the support plate 16 downward. The support plate 16 moves and moves the buffer plate 19 connected to the lower part to move around. When the four buffer plates 19 move, the four sliders 18 connected to the bottom rotation move around outside the two U-shaped rods 17. When the four sliders 18 move, the four buffer springs 20 fixed on the outside are squeezed, so that the four buffer springs 20 are deformed under the force. By deforming the buffer springs 20 under the force, the force received can be absorbed, thereby reducing the direct force and wear of the support structure, extending the service life of the support structure, and reducing maintenance costs.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tunnel lining seismic support structure, comprising a movable frame (1), characterized in that: The movable frame (1) has movable components disposed on both sides of the lower portion thereof, and an adjusting component disposed inside the movable frame (1); The adjustment component includes a motor (7), which is arranged inside the mobile frame (1). The output end of the motor (7) is fixedly connected to a transmission wheel (8), which is installed on the upper part of the mobile frame (1). A transmission wheel (10) is installed on the upper middle part of the mobile frame (1). The transmission wheel (8) is connected to the transmission wheel (10) through a transmission belt (9). The transmission wheel (10) is internally threaded with a screw rod (11). The top of the screw rod (11) is fixedly connected to a transverse plate (13). A shock-absorbing component is arranged on the upper part of the transverse plate (13). The bottom of the screw rod (11) is fixedly connected to a connecting plate. The transverse plate (13) and the middle of the connecting plate are fixedly connected to guide rods (12) on all sides.

2. The tunnel lining seismic support structure according to claim 1, characterized in that: The shock absorbing assembly includes a damper (15), the damper (15) is fixedly connected to the upper middle part of the transverse plate (13), the output end of the damper (15) is fixedly connected to the support plate (16), both sides of the upper part of the transverse plate (13) are fixedly connected to U-shaped rods (17), both sides of the outer sides of the two U-shaped rods (17) are slidably connected to sliders (18), the outer sides of the plurality of sliders (18) are fixedly connected to buffer springs (20), the plurality of buffer springs (20) are sleeved on both sides of the outer sides of the two U-shaped rods (17), the upper parts of the plurality of sliders (18) are rotatably connected to buffer plates (19), the tops of the plurality of buffer plates (19) are rotatably connected to the periphery of the lower part of the support plate (16), and the upper part of the support plate (16) is fixedly connected to an arc-shaped supporting plate (21).

3. The tunnel lining seismic support structure according to claim 1, characterized in that: The mobile assembly comprises a mounting plate (2), the mounting plate (2) being fixedly connected to both sides of the interior of the mobile frame (1), and rollers (3) being installed on both sides of the lower portion of the two mounting plates (2).

4. The tunnel lining seismic support structure according to claim 1, characterized in that: Through holes (14) are provided on all four sides of the interior of the movable frame (1), and a plurality of guide rods (12) are slidably connected inside the plurality of through holes (14).

5. A tunnel lining seismic support structure according to claim 1, 3 or 4, characterized in that: A mounting ring (6) is fixedly connected inside the movable frame (1), and a motor (7) is fixedly connected inside the mounting ring (6).

6. The tunnel lining seismic support structure according to claim 2, characterized in that: The material of the arc-shaped supporting plate (21) is alloy steel.

7. The tunnel lining seismic support structure according to claim 3, characterized in that: Both sides of the outside of the mounting plate (2) are threadedly connected to fixing cones (4), and a knob (5) is fixedly connected to the top of the fixing cone (4).

8. The tunnel lining seismic support structure according to claim 5, characterized in that: The material of the movable frame (1) is stainless steel.

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