MULTI-STAGE SHOCK ABSORPTION AND SEISMIC DEVICE FOR URBAN UNDERGROUND COMPREHENSIVE PIPE TUNNEL

Abstract

The invention discloses a multi-stage shock absorption and seismic resistance system for urban underground comprehensive pipe tunnels. It includes a pipe gallery tunnel and pipeline grooves. Inside the tunnel, a multi-segment active cavity with multiple arc-shaped inner cavity walls forms a pipe shape with the same axis line as the tunnel. Each inner cavity wall has a sealing elastic contact pad, ensuring a tight seal. Adjacent active cavities connect end to end, forming an inner tunnel body that extends with the pipe tunnel. The outer wall of the inner cavity is fixed to the tunnel's inner wall by a fixed frame. The pipeline groove is installed on the inner wall of the inner cavity through a telescopic frame. The inner tunnel body can swing up and down or left and right, absorbing transverse and longitudinal earthquake waves and resisting impact and collapse.

Claims

1. A multi-stage shock absorption and seismic device for urban underground comprehensive pipe tunnel comprises a pipe tunnel (1) for casting in the underground and soil layer, the inner wall of the pipe tunnel (1) is installed with multiple pipeline grooves (3) for laying pipelines along an extension direction of the pipe tunnel (1), an inner part of the pipe tunnel (1) is equipped with a multi-segment active cavity along the extension direction of the pipe tunnel (1), the active cavity comprises multiple arc-shaped inner cavity walls (2), the inner cavity walls (2) are enclosed circlewise to form a pipe shape of the same axis line as the pipe tunnel (1), an enclosure of each inner cavity wall (2) is equipped with a sealing elastic contact pad 1 (21), the two components are sealed and tightened, adjacent active cavities are connected end to end to form an inner tunnel body extending with the pipe tunnel (1), the sealing elastic contact pad 2 (22) is arranged at the joint of the adjacent active cavity to seal and tighten each other, an outer wall of the inner cavity wall (2) facing the inner wall of the pipe tunnel (1) is rotationally fixed on the inner wall of the pipe tunnel (1) by a fixed frame (20), the pipeline groove is installed on the inner wall of the inner cavity wall (2) through a groove telescopic frame (30).

2. The multi-stage shock absorption and seismic device for urban underground comprehensive pipe tunnel according to claim 1, wherein multiple pipeline grooves (3) are installed on both sides of an inner bottom and an inner side wall of the active cavity according to an axis line of the pipe tunnel (1) as an axis circumference distribution, and the pipeline grooves (3) inside the multiple active cavities correspond to head and tail connection positions of the active cavities one by one.

3. The multi-stage shock absorption and seismic device for urban underground comprehensive pipe tunnel according to claim 1, wherein the inner cavity wall (2) is equipped with a ventilation device for external ventilation, and the inner cavity wall (2) and the pipe tunnel (1) are equipped with a shaft mouth for entering the inner cavity wall (2) for installation or maintenance of the pipeline.

4. The multi-stage shock absorption and seismic device for urban underground comprehensive pipe tunnel according to claim 1, wherein the inner bottom of the active cavity is provided with a tunnel platform (4) for installing pipelines, and a bottom of the tunnel platform (4) is supported horizontally at the inner bottom of the inner cavity wall (2) through a platform damping support column (40).

5. The multi-stage shock absorption and seismic device for urban underground comprehensive pipe tunnel according to claim 1, wherein a drainage mechanism is arranged in a ring cavity formed between the inner wall of the pipe tunnel (1) and the inner wall of the inner cavity wall (2).

6. The multi-stage shock absorption and seismic device for urban underground comprehensive pipe tunnel according to claim 1, wherein a width of the sealing elastic contact pad 1 (21) along a radial direction of the pipe tunnel (1) is greater than a maximum displacement of the inner cavity wall (2) driven by a rotation of the fixed frame (20).

7. The multi-stage shock absorption and seismic device for urban underground comprehensive pipe tunnel according to claim 1, wherein an outer end of the fixed frame (20) is fixed on the inner wall of the pipe tunnel (1), and an inner end of the fixed frame (20) is rotary connected to the outer wall of the inner cavity wall (2) through a ball head connection.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG. 1 is a structural diagram of the multi-stage shock absorption and seismic device for urban underground comprehensive pipe tunnel.

[0016] FIG. 2 is a radial cross-section of the multi-stage damping seismic device for urban underground comprehensive pipe tunnel.

[0017] FIG. 3 is a structural diagram of the comprehensive pipe tunnel partially collapsed in the multi-stage shock absorption and seismic device for the urban underground comprehensive pipe tunnel.

[0018] FIG. 4 is a structural diagram of the sealing elastic contact pads one and two at the axial and radial interfaces of the inner cavity wall in the multi-stage damping and seismic device of the urban underground comprehensive pipe tunnel.

[0019] Marks in the figures: pipe tunnel 1, inner cavity wall 2, fixed frame 20, sealing elastic contact pad 1 21, sealing elastic contact pad 2 22, pipeline groove 3, groove telescopic frame 30, tunnel platform 4, platform damping support column 40.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In the following, the technical solution in the embodiment of the invention will be clearly and completely described in combination with the attached figures in the embodiment of the invention. Obviously, the described embodiment is only part of the embodiment of the invention. Based on the embodiment in the invention, all other embodiments obtained by ordinary technicians in this field without making creative labor belong to the scope of protection of the invention.

Embodiment 1

[0021] Please refer to FIGS. 1-4. In the embodiment of the invention, a multi-stage shock absorption and seismic device for urban underground comprehensive pipe tunnel includes a pipe tunnel 1 for casting in the underground and soil layer, the inner wall of the pipe tunnel 1 is installed with multiple pipeline grooves 3 for laying pipelines along the extension direction of the pipe tunnel 1, the inner part of the pipe tunnel 1 is equipped with a multi-segment active cavity along the extension direction of the pipe tunnel 1, the active cavity includes multiple arc-shaped inner cavity walls 2, the inner cavity walls 2 are enclosed circlewise to form a pipe shape of the same axis line as the pipe tunnel 1, the enclosure of each inner cavity wall 2 is equipped with a sealing elastic contact pad 1 21, which is sealed and tightened with each other, the adjacent active cavities are connected end to end to form an inner tunnel body extending with the pipe tunnel 1, the sealing elastic contact pad 2 22 is arranged at the joint of the adjacent active cavity to seal and tighten each other, the outer wall of the inner cavity wall 2 facing the inner wall of the pipe tunnel 1 is rotationally fixed on the inner wall of the pipe tunnel 1 by the fixed frame 20, the pipeline groove 3 is installed on the inner wall of the inner cavity wall 2 through a groove telescopic frame 30.

[0022] Multiple pipeline grooves 3 are installed on both sides of the inner bottom and inner side wall of the active cavity according to the axis line of the pipe tunnel 1 as the axis circumference distribution, and the pipeline grooves 3 inside the multiple active cavities correspond to the head and tail connection positions of the active cavities one by one, thus forming an overall groove frame for laying pipelines.

[0023] The radial width of the sealing elastic contact pad 1 21 along the pipe tunnel 1 is greater than the maximum displacement of the inner cavity wall 2 driven by the rotation of the fixed frame 20, the main guarantee here is that when the inner cavity wall 2 swings slightly, the two sealing elastic contact pads 1 21 will not dislocate and directly disconnect the sealing connection.

[0024] The outer end of the fixed frame 20 is fixed on the inner wall of the pipe tunnel 1, and the inner end of the fixed frame 20 is connected to the outer wall of the inner cavity wall 2 by a ball head connection, the arranged ball head connection can not only make the inner cavity wall 2 swing up and down as a whole, but also make it swing left and right.

[0025] The inner bottom of the active cavity is provided with a tunnel platform 4 for installing pipelines, and the bottom of the tunnel platform 4 is supported horizontally at the inner bottom of the inner cavity wall 2 through a platform damping support column 40.

[0026] The working principle of the invention is that the inner tunnel body composed of multiple active cavities inside the pipe tunnel 1 of the comprehensive pipe tunnel can set up an independent pipe tunnel space inside the pipe tunnel 1 of the comprehensive pipe tunnel, and each active cavity can swing up and down or left and right inside the pipe tunnel 1 of the comprehensive pipe tunnel as a whole, the adjacent active cavities can ensure the relative sealing of the inner tunnel body under the connection of the sealing elastic contact pad 2 22, thus offsetting the impact of the shear wave and longitudinal wave of the earthquake on the inner tunnel body and ensuring the uniform stability inside the whole tunnel body, the inner cavity wall 2 of each inner cavity that constitutes the active cavity can also swing and dislocate, even when the pipe tunnel 1 of the comprehensive pipe tunnel is ruptured by an earthquake of higher magnitude, the soil layer or water body poured into the rupture position will be blocked by the inner cavity wall 2, and the inner cavity wall 2 with the relative rupture position will produce swing and dislocation, the inner cavity wall 2 adjacent to the dislocation can also release the force and maintain the seal through the mutually tightened sealing elastic contact pad 1 21, when the inner cavity wall 2 is impacted, the pipeline groove 3 on the inner cavity wall 2 is subjected to secondary shock absorption and buffering through the groove telescopic frame 30 to ensure that the pipeline groove 3 inside the active cavity maintains relative stability.

Embodiment 2

[0027] Please refer to FIG. 1-4, in the embodiment of the invention, a multi-stage shock absorption and seismic device for urban underground comprehensive pipe tunnel includes a pipe tunnel 1 for casting in the underground and soil layer, the inner wall of the pipe tunnel 1 is installed with multiple pipeline grooves 3 for laying pipelines along the extension direction of the pipe tunnel 1, the inner part of the pipe tunnel 1 is equipped with a multi-segment active cavity along the extension direction of the pipe tunnel 1, the active cavity includes multiple arc-shaped inner cavity walls 2, the inner cavity walls 2 are enclosed circlewise to form a pipe shape of the same axis line as the pipe tunnel 1, the enclosure of each inner cavity wall 2 is equipped with a sealing elastic contact pad 1 21, which is sealed and tightened with each other, the adjacent active cavities are connected end to end to form an inner tunnel body extending with the pipe tunnel 1, the sealing elastic contact pad 2 22 is arranged at the joint of the adjacent active cavity to seal and tighten each other, the outer wall of the inner cavity wall 2 facing the inner wall of the pipe tunnel 1 is rotationally fixed on the inner wall of the pipe tunnel 1 by the fixed frame 20, the pipeline groove 3 is installed on the inner wall of the inner cavity wall 2 through a groove telescopic frame 30.

[0028] Multiple pipeline grooves 3 are installed on both sides of the inner bottom and inner side wall of the active cavity according to the axis line of the pipe tunnel 1 as the axis circumference distribution, and the pipeline grooves 3 inside the multiple active cavities correspond to the head and tail connection positions of the active cavities one by one, thus forming an overall groove frame for laying pipelines.

[0029] The radial width of the sealing elastic contact pad 1 21 along the pipe tunnel 1 is greater than the maximum displacement of the inner cavity wall 2 driven by the rotation of the fixed frame 20, the main guarantee here is that when the inner cavity wall 2 swings slightly, the two sealing elastic contact pads 1 21 will not dislocate and directly disconnect the sealing connection.

[0030] The outer end of the fixed frame 20 is fixed on the inner wall of the pipe tunnel 1, and the inner end of the fixed frame 20 is connected to the outer wall of the inner cavity wall 2 by a ball head connection, the arranged ball head connection can not only make the inner cavity wall 2 swing up and down as a whole, but also make it swing left and right.

[0031] The inner bottom of the active cavity is provided with a tunnel platform 4 for installing pipelines, and the bottom of the tunnel platform 4 is supported horizontally at the inner bottom of the inner cavity wall 2 through a platform damping support column 40.

[0032] The difference between this embodiment and Embodiment 1 is as follows:

[0033] A drainage mechanism is arranged in the ring cavity formed between the inner wall of the pipe tunnel 1 and the inner wall of the inner cavity wall 2, and the drainage mechanism can drain the water infiltrated into the inside by the pipe tunnel 1.

[0034] The air exchange device with external ventilation is arranged on the inner cavity wall 2, and the inner cavity wall 2 and the pipe tunnel 1 run through the shaft mouth for entering the inner cavity wall 2 to install or repair the pipeline, the shaft mouth can be used for exhaust or installation personnel to enter.

[0035] For technicians in this field, it is obvious that the invention is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without deviating from the spirit or basic characteristics of the invention. Therefore, in any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the invention is limited by the attached claims rather than the above description, so the invention includes all changes falling within the meaning and scope of the equivalent requirements of the claims, any accompanying marks in the claim should not be regarded as a claim involved in the restriction.

[0036] In addition, it should be understood that although this instruction is described in accordance with the embodiments, not every embodiment contains only one independent technical solution, and this description of the instruction is only for the sake of clarity. The technical personnel in this field should take the instruction as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by the technical personnel in this field.