Multi-stage anti-seismic damping structure of underground pipe gallery

Abstract

The application is suitable for the technical field of underground pipe galleries, and provides a multi-stage anti-seismic and shock-absorbing structure of an underground pipe gallery, which is characterized by that a plurality of sets of support assemblies and shock-absorbing assemblies are arranged on the top surface and the two side surfaces of the main body of the pipe gallery; the support assemblies and shock-absorbing assemblies on the top surface of the main body of the pipe gallery can support and buffer the load on the top of the main body of the pipe gallery; the support assemblies and shock-absorbing assemblies on the two side surfaces can support and buffer the impact force of the transverse wave and longitudinal wave of the earthquake on the main body of the pipe gallery, thereby improving the impact resistance and anti-seismic performance of the main body of the pipe gallery; in addition, the arch-shaped arrangement of the plurality of support members in the support assembly not only has the advantage of high load bearing, but also can disperse the impact force so as to prevent the impact force from being concentrated in one point, thereby improving the impact resistance of the entire support assembly; and the bowl-shaped elastic member has the advantages of long service life and good impact resistance compared with the spring shock-absorbing.

Description

Technical Field

[0001] This invention relates to the field of underground utility tunnel technology, specifically a multi-stage seismic-resistant and vibration-damping structure for underground utility tunnels. Background Technology

[0002] Underground utility tunnels are underground urban pipeline corridors, which are tunnel spaces built underground in cities to house various engineering pipelines such as electricity, communications, gas, heating, water supply and drainage. They are equipped with dedicated inspection ports, hoisting ports and monitoring systems, and are subject to unified planning, design, construction and management. They are important infrastructure and "lifelines" to ensure the operation of cities.

[0003] Most current underground utility tunnels are shallow-buried structures. Due to their shallow burial depth, their tops are highly susceptible to damage from vehicle loads, explosive loads, and mechanical loads. Furthermore, during earthquakes, the tunnels move with the surrounding soil along with the P-waves and S-waves. Because different soil layers have varying deformation capacities, uneven stress on the tunnels can lead to bending deformation, cracks, and even collapse. When these problems occur, the pipes installed inside the tunnels suffer varying degrees of damage, resulting in a loss of urban operational power. Therefore, appropriate technical solutions are needed to address these existing technical challenges. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-stage seismic-resistant and vibration-damping structure for underground utility tunnels to solve the problems mentioned in the background art.

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

[0006] A multi-stage seismic damping structure for underground utility tunnels includes a main tunnel body. Multiple cable trays for laying pipelines are installed along the inner wall of the main tunnel body. Multiple sets of support components are installed inside the main tunnel body along its extension direction. Damping components are disposed between the support components and the inner wall of the main tunnel body. Each support component includes two symmetrically arranged fixed seats and multiple support members installed within the two fixed seats. The fixed seats are fixedly embedded within the main tunnel body. One side of each support member is flat, and the other side is arc-shaped. Multiple support members abut against each other, and the arc-shaped structures of the multiple support members are concentrically arranged and spliced ​​into an arch shape. Each damping component includes multiple elastic members evenly spaced between the multiple support components and the inner wall of the main tunnel body. Each elastic member has a bowl-shaped structure, and a support plate is fixedly disposed on the side of the elastic member near the inner wall of the main tunnel body.

[0007] As a further aspect of the present invention: the inner wall of the main body of the pipe gallery, except for the bottom surface, is provided with support components and shock-absorbing components.

[0008] As a further aspect of the present invention: the outermost two side supports are hinged to the fixed seat via bearing hinges, and multiple tension springs are also provided between the side of the support and the fixed seat.

[0009] As a further aspect of the present invention, elastic pads are provided at the contact points of adjacent support members.

[0010] As a further aspect of the present invention: the shock absorption assembly further includes a reinforcing unit, which includes multiple telescopic sleeves installed between the elastic element and multiple sets of support components, a telescopic rod movably inserted into the telescopic sleeve, and connecting rods symmetrically hinged to both sides of the telescopic rod. The end of the telescopic rod inserted into the telescopic sleeve is provided with a buffer spring, and the other end is fixedly connected to the inner wall of the elastic element. The end of the connecting rod away from the telescopic rod is hinged to the inner wall of the elastic element.

[0011] As a further aspect of the present invention: a plug sleeve is also fixedly provided on multiple support members, and the telescopic sleeve is movably inserted into the plug sleeve.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This invention improves the impact and seismic resistance of the utility tunnel by installing multiple sets of support and damping components on the top and both sides of the tunnel's interior. The support and damping components on the top of the tunnel can support and buffer the load on the top of the tunnel, while the support and damping components on both sides can support and buffer the impact of seismic transverse and longitudinal waves on the tunnel. In addition, the arched arrangement of multiple support members in the support components not only has the advantage of high load-bearing capacity but also disperses the impact force, preventing it from concentrating at one point, thus improving the overall impact resistance of the support components. Furthermore, the "bowl"-shaped elastic element has the advantages of longer service life and better impact resistance compared to spring damping. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a multi-stage seismic-resistant and vibration-damping structure for underground utility tunnels.

[0015] Figure 2 This is an enlarged view of the support components and damping components in a multi-stage seismic-resistant and damping structure for an underground utility tunnel;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a partial three-dimensional view of a damping component in a multi-stage seismic-resistant and damping structure for an underground utility tunnel.

[0018] In the diagram: 1-main body of the pipe gallery, 2-trough frame, 3-fixed seat, 4-support component, 5-elastic component, 6-support plate, 7-bearing hinge, 8-tension spring, 9-elastic gasket, 10-telescopic sleeve, 11-telescopic rod, 12-buffer spring, 13-connecting rod, 14-insertion cylinder, 15-support assembly, 16-shock absorption assembly. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] Please see Figure 1-4 A multi-stage seismic-resistant and vibration-damping structure for underground utility tunnels includes a main tunnel body 1. Multiple cable trays 2 for laying pipelines are installed along the inner wall of the main tunnel body 1 along its extension direction. Multiple sets of support components are installed inside the main tunnel body 1 along its extension direction. Vibration-damping components are provided between the multiple sets of support components and the inner wall of the main tunnel body 1. Specifically, the inner wall of the main tunnel body 1, except for the bottom surface, is provided with support components and vibration-damping components. Each support component includes two symmetrically arranged fixed seats 3 and multiple support members 4 installed within the two fixed seats 3. The fixed seats 3 are fixedly embedded within the main tunnel body 1. One side of each support member 4 is flat, and the other side is arc-shaped. The multiple support members 4 abut against each other, and the arc-shaped structures of the multiple support members 4 are concentrically arranged and spliced ​​into an arch shape. The vibration-damping components include multiple... Each elastic element 5 has a bowl-shaped structure. A support plate 6 is fixedly installed on the side of the elastic element 5 near the inner wall of the main body 1 of the pipe gallery. By setting multiple sets of support components and shock-absorbing components on the top surface and both sides of the main body 1 of the pipe gallery, the support components and shock-absorbing components on the top surface of the main body 1 of the pipe gallery can support and buffer the load on the top of the main body 1 of the pipe gallery. The support components and shock-absorbing components on both sides can support and buffer the impact force of seismic transverse waves and longitudinal waves on the main body 1 of the pipe gallery, thereby improving the impact resistance and seismic performance of the main body 1 of the pipe gallery. In addition, the arch-shaped arrangement of multiple support elements 4 in the support components not only has the advantage of high load-bearing capacity, but also can disperse the impact force, so that the impact force is not concentrated at one point, thereby improving the impact resistance of the entire support component. Compared with spring shock absorption, the setting of the bowl-shaped elastic element 5 has the advantages of long service life and good impact resistance.

[0021] Among them, the outermost two side support members 4 are hinged to the fixed seat 3 by bearing hinges 7, and multiple tension springs 8 are also provided between the side of the support member 4 and the fixed seat 3. The setting of bearing hinges 7 and tension springs 8 allows the entire support assembly to change angles according to temperature changes, further improving the practicality of the support assembly.

[0022] In addition, elastic pads 9 are provided at the contact points of adjacent support members 4. The provision of elastic pads 9 can prevent deformation caused by rigid contact between adjacent support members 4 after the impact force is distributed to multiple support members 4, thereby further improving the impact resistance of the support assembly.

[0023] Furthermore, the shock absorption assembly also includes a reinforcing unit, which includes multiple telescopic sleeves 10 installed between the elastic element 5 and multiple sets of support components, a telescopic rod 11 movably inserted into the telescopic sleeve 10, and connecting rods 13 symmetrically hinged to both sides of the telescopic rod 11. The end of the telescopic rod 11 inserted into the telescopic sleeve 10 is provided with a buffer spring 12, and the other end is fixedly connected to the inner wall of the elastic element 5. The end of the connecting rod 13 away from the telescopic rod 11 is hinged to the inner wall of the elastic element 5. With the reinforcement unit, during the process of the elastic element 5 being impacted and deformed, the telescopic rod 11 reciprocates along with it within the telescopic sleeve 10. The buffer spring 12 within the telescopic sleeve 10 further improves the buffering effect of the elastic element 5. In addition, the two connecting rods 13 can limit the maximum deformation of the elastic element 5 and also play a certain role in the recovery of the elastic element 5, further improving the stability of the elastic element 5.

[0024] Furthermore, in order to facilitate the installation of the elastic element 5 on multiple sets of support components, in this application, multiple support elements 4 are also fixedly provided with inserts 14, and the telescopic sleeve 10 is movably inserted into the inserts 14.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-stage seismic-resistant and vibration-damping structure for an underground utility tunnel, comprising a main tunnel body (1), wherein a plurality of slotted racks (2) for laying pipelines are installed on the inner wall of the main tunnel body (1) along its extension direction, characterized in that, Multiple sets of support components are installed inside the main body (1) of the pipe gallery along its extension direction, and shock-absorbing components are provided between the multiple sets of support components and the inner wall of the main body (1). The support assembly includes two symmetrically arranged fixed seats (3) and multiple support members (4) installed in the two fixed seats (3). The fixed seats (3) are fixedly embedded in the main body (1) of the pipe gallery. One side of the support member (4) is flat and the other side is arc-shaped. Multiple support members (4) abut against each other, and the arc-shaped structures of multiple support members (4) are concentrically arranged and spliced ​​into an arch shape. The shock absorption assembly includes multiple elastic elements (5) that are equally spaced between multiple support components and the inner wall of the pipe gallery body (1). The elastic elements (5) have a "bowl" shaped structure, and a support plate (6) is fixedly installed on the side of the elastic elements (5) near the inner wall of the pipe gallery body (1).

2. The multi-stage seismic-resistant and vibration-damping structure for underground utility tunnels according to claim 1, characterized in that, The inner wall of the main body (1) of the pipe gallery is equipped with support components and shock absorption components, except for the bottom surface.

3. The multi-stage seismic-resistant and vibration-damping structure for underground utility tunnels according to claim 1, characterized in that, The outermost two side support members (4) are hinged to the fixed seat (3) by bearing hinges (7), and multiple tension springs (8) are also provided between the side of the support member (4) and the fixed seat (3).

4. The multi-stage seismic-resistant and vibration-damping structure for underground utility tunnels according to claim 1, characterized in that, Elastic pads (9) are provided at the contact points of adjacent support members (4).

5. The multi-stage seismic-resistant and vibration-damping structure for underground utility tunnels according to claim 1, characterized in that, The shock absorption assembly also includes a reinforcing unit, which includes multiple telescopic sleeves (10) installed between the elastic element (5) and multiple sets of support components, a telescopic rod (11) movably inserted into the telescopic sleeve (10), and connecting rods (13) symmetrically hinged on both sides of the telescopic rod (11). The end of the telescopic rod (11) inserted into the telescopic sleeve (10) is provided with a buffer spring (12), and the other end is fixedly connected to the inner wall of the elastic element (5). The end of the connecting rod (13) away from the telescopic rod (11) is hinged to the inner wall of the elastic element (5).

6. The multi-stage seismic-resistant and vibration-damping structure for underground utility tunnels according to claim 5, characterized in that, A tube (14) is fixedly installed on multiple support members (4), and the telescopic sleeve (10) is movably inserted into the tube (14).

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