Prefabricated pipe gallery with toughened anti-seepage function

Abstract

The application provides a prefabricated pipe gallery with toughening and anti-seepage functions and belongs to the technical field of geotechnical engineering. The problems of insufficient anti-seismic performance and easy water seepage of the traditional prefabricated pipe gallery are solved. The device comprises a prefabricated pipe gallery, a high-pressure nozzle excavation device and a pipe gallery joint. The prefabricated pipe gallery has the beneficial effects that the cavity filled with gelatin will swell after being contacted with water, the water seepage channel of the prefabricated pipe gallery is filled, and the function of rapid water seepage stopping is achieved; the importance of the middle wall structure to the overall structure is weak, the middle wall made of EPS concrete has the advantages of lightness, high damping, strong anti-seismic performance and easy replacement; the two ends of the middle wall are provided with No. 2 dampers, which can better absorb seismic wave energy during an earthquake; and the prefabricated pipe gallery pipeline base is arranged on No. 1 damper, so that the safety of the pipeline under the action of an earthquake is ensured.

Description

Technical Field

[0001] This invention relates to the field of geotechnical engineering, and in particular to a precast pipe gallery with toughening and seepage prevention functions. Background Technology

[0002] When an earthquake occurs, underground structures, constrained by the soil, undergo dynamic interactions with the surrounding soil. Seismic waves travel from the bedrock through soft soil layers to the structure, causing structural movement and deformation. Some seismic waves are reflected back to the soil layers, producing a reaction effect. Traditional utility tunnels are insufficient for earthquake resistance; this structure can dissipate energy during earthquakes to protect pipelines and the structure itself.

[0003] Currently, traditional utility tunnels are often slow and cumbersome in preventing cracks and seepage. A prefabricated utility tunnel with toughening and seepage prevention functions has a cavity filled with gelatin, which can absorb water and expand when in contact with water, blocking the seepage channels and thus achieving the effect of preventing cracks and seepage.

[0004] Therefore, it is necessary to develop a prefabricated pipe gallery with toughening and seepage prevention functions to meet the requirements of construction technology. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes a prefabricated pipe gallery with toughening and seepage prevention functions, which can meet the requirements of construction technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A precast pipe gallery with toughening and seepage prevention function includes a precast pipe gallery, a high-pressure nozzle excavation device, and a pipe gallery joint. The pipe gallery joint is set at the end of the precast pipe gallery, and the pipe gallery joints are connected to each other to connect adjacent precast pipe galleries. The high-pressure nozzle excavation device is set on the precast pipe gallery.

[0008] The prefabricated pipe gallery includes a pipe gallery shell, a cavity, and an internal support frame. The cavity is filled with gelatin and equipped with buckling restraint braces. One end of the buckling restraint brace is connected to the pipe gallery shell, and the other end is connected to a rubber plate. The rubber plate is embedded in the internal support frame. A central wall is provided in the space formed by the internal support frame. Dampers No. 2 are provided at both ends of the central wall and are connected to the internal support frame.

[0009] The pipe gallery joint includes a No. 2 slot, an extension section, and a waterstop. The extension section extends into the No. 2 slot, and the two are connected by bolts. A waterstop is installed in the gap of the pipe gallery joint. The waterstop expands when it comes into contact with water and is shaped like a strip that fits tightly against one side of the pipe gallery joint.

[0010] Preferably, the high-pressure nozzle excavation device includes a high-pressure nozzle, a concrete conveying channel, a slurry pumping pipe, and a high-pressure water conveying pipe. The high-pressure nozzle is installed outside the precast pipe gallery and is simultaneously connected to the concrete conveying pipe, the slurry pumping pipe, and the high-pressure water conveying pipe. The concrete conveying pipe, the slurry pumping pipe, and the high-pressure water conveying pipe are connected to a liquid channel, which is located in the lower part of the space formed by the internal support frame of the pipe gallery.

[0011] Preferably, the space formed by the internal support structure of the utility tunnel is also equipped with pipelines, which are installed on damper No. 1. Damper No. 1 is connected to the pipeline platform, and the pipeline platform is connected to the internal support frame of the utility tunnel.

[0012] Preferably, the middle wall is made of EPS concrete.

[0013] Preferably, the middle wall is connected to the No. 2 damper via a limiting device.

[0014] Preferably, slot 1 is provided on both the central wall and the No. 2 damper. The limiting device is set as a U-shaped connecting card. The two ends of the connecting card are respectively inserted into slot 1 on both sides to achieve connection. The limiting device is fixed by bolt screwing.

[0015] Preferably, the feature is that a level is embedded inside the internal support frame of the pipe gallery. The level monitors the tilt direction and angle of the prefabricated pipe gallery. When uneven settlement occurs in the pipe gallery, cement slurry is delivered to the high-pressure nozzle from the concrete delivery pipeline to fill the soil on the side of the foundation that is relatively settled. On the side of the foundation that is relatively raised, high-pressure water is delivered to the high-pressure nozzle from the high-pressure water delivery pipeline to cut the soil. At the same time, the high-pressure nozzle discharges the slurry through the pumping channel. The liquid channel is equipped with a flow control regulating valve to control the flow rate of the liquid output from each channel.

[0016] Preferably, the rubber plate is distributed around the buckling restraint support, dividing the cavity into multiple equal parts to prevent leakage at one point from causing the failure of the entire cavity and to improve the overall toughness of the pipe gallery.

[0017] Preferably, the level is an electronic level.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] (1) The prefabricated pipe gallery has a cavity structure filled with gelatin, which can promptly and spontaneously fill the cracks and seepage channels.

[0020] (2) The prefabricated pipe gallery cavity is equipped with buckling restraint bracing. The bracing and the rubber plate work together to enable the cavity to dissipate seismic energy.

[0021] (3) The central wall of the precast pipe gallery uses EPS concrete structure, which is lighter and has better seismic resistance compared with traditional concrete structure.

[0022] (4) The central wall of the precast pipe gallery is connected by a detachable limiting device, which makes the central wall easy to disassemble.

[0023] (5) No. 2 dampers are installed at both ends of the central wall of the precast pipe gallery, which can greatly increase the toughness of the central wall.

[0024] (6) High-pressure nozzles are installed on the precast pipe gallery. The high-pressure nozzles can cut the soil and inject concrete, which can reinforce and level the soil and prevent uneven settlement of the soil under earthquake action. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0026] Figure 1 This is a cross-sectional view of the utility tunnel structure;

[0027] Figure 2 This is a diagram showing the installation of infusion pipes in the utility tunnel.

[0028] Figure 3 This is a diagram of a high-pressure nozzle system;

[0029] Figure 4 This is a diagram of the prefabricated pipe gallery connection device;

[0030] Figure 5 It is a wall diagram;

[0031] Figure 6 It is a pipeline installation diagram;

[0032] Figure 7 This is the assembly diagram of the central wall.

[0033] The components include: 1. Precast pipe gallery; 1-1. Pipe gallery shell; 1-2. Cavity; 1-3. Internal support frame of pipe gallery; 1-4. Gelatin; 1-5. Buckling restraint brace; 1-6. Rubber sheet; 1-7. Pipeline; 1-8. Middle wall; 1-9. Liquid channel; 1-10. Damper No. 1; 1-11. Pipeline platform; 1-12. Damper No. 2; 1-13. Limiting device; 1-14. Slot No. 1; 1-15. Level; 2. High-pressure nozzle excavation device; 2-1. High-pressure nozzle; 2-2. Concrete conveying pipeline; 2-3. Slurry pumping pipeline; 2-4. High-pressure water conveying pipeline; 2-5. Flow control regulating valve; 3. Pipe gallery joint; 3-1. Slot No. 2; 3-2. Protruding section; 3-3. Bolt; 3-4. Waterstop. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] Example

[0036] See Figures 1 to 7 The present invention provides a technical solution for a prefabricated pipe gallery with toughening and seepage prevention functions, which can meet the requirements of construction technology.

[0037] This invention is achieved through the following measures:

[0038] See Figures 1 to 7 The present invention provides a technical solution as follows: a precast pipe gallery with toughening and seepage prevention function, including a precast pipe gallery 1, a high-pressure nozzle excavation device 2, and a pipe gallery joint 3. The pipe gallery joint 3 is set at the end of the precast pipe gallery 1, and the pipe gallery joints 3 are connected to each other to connect adjacent precast pipe galleries 1. The high-pressure nozzle excavation device 2 is set on the precast pipe gallery 1.

[0039] The prefabricated pipe gallery 1 includes a pipe gallery shell 1-1, a cavity 1-2, and an internal support frame 1-3. The cavity 1-2 is filled with gelatin 1-4 and a buckling restraint brace 1-5 is installed thereon. One end of the buckling restraint brace 1-5 is connected to the pipe gallery shell 1-1, and the other end is connected to a rubber plate 1-6. The rubber plate 1-6 is embedded in the internal support frame 1-3 of the pipe gallery, and the internal support frame 1-3 of the pipe gallery is also connected to the cavity 1-2.

[0040] like Figure 1 , 2 As shown in Figure 6, the space formed by the internal support frame 1-3 of the utility tunnel includes pipeline 1-7, central wall 1-8, and liquid channel 1-9. Pipeline 1-7 is installed on damper 1-10, which is connected to pipeline platform 1-11, improving the safety of pipeline 1-7 under seismic loads. Pipeline platform 1-11 is connected to the internal support frame 1-3. Liquid channel 1-9 is located in the lower part of the space formed by the internal support frame 1-3. Dampers 1-12 are installed at both ends of central wall 1-8. Dampers 1-12 can absorb energy through their own movement, reducing the risk of seismic damage to central wall 1-8. Dampers 1-12 are connected to the internal support frame 1-3. A level 1-15 is embedded inside the internal support frame 1-3.

[0041] like Figure 3As shown, the high-pressure nozzle excavation device 2 includes a high-pressure nozzle 2-1, a concrete conveying channel 2-2, a slurry extraction pipe 2-3, and a high-pressure water conveying pipe 2-4. The high-pressure nozzle 2-1 is installed outside the precast pipe gallery 1 and is simultaneously connected to the concrete conveying pipe 2-2, the slurry extraction pipe 2-3, and the high-pressure water conveying pipe 2-4. The concrete conveying pipe 2-2, the slurry extraction pipe 2-3, and the high-pressure water conveying pipe 2-4 are connected to a liquid channel 1-9. The liquid channel 1-9 is connected to branch pipes of each pipe, which are respectively connected to the concrete conveying pipe 2-2, the slurry extraction pipe 2-3, and the high-pressure water conveying pipe 2-4, realizing concrete conveying, slurry extraction, and high-pressure water conveying without interference. When uneven ground settlement occurs or an earthquake occurs, high-pressure water is conveyed to the high-pressure nozzle 2-1 through the high-pressure water conveying pipe 2-4 to excavate the soil, while the high-pressure nozzle 2-1 is used simultaneously. Slurry is extracted through pumping channel 2-3, and finally concrete is delivered to high-pressure nozzle 2-1 through concrete delivery pipe 2-2 to reinforce the foundation. The high-pressure nozzle 2-1 can adjust the spray angle and can fill the foundation when it settles. The level of the precast pipe gallery 1 can be monitored by level 1-15. When settlement is detected on one side, concrete is delivered to high-pressure nozzle 2-1 through concrete delivery pipe 2-2 to fill the soil. When the foundation rises, high-pressure water is delivered to high-pressure nozzle 2-1 through high-pressure water delivery pipe 2-4 to cut the soil, and at the same time, slurry is discharged through pumping channel 2-3 by high-pressure nozzle 2-1. The liquid channel is equipped with flow control regulating valve 2-5 to control the flow rate of liquid output from each channel.

[0042] like Figure 4 As shown, the pipe gallery joint 3 includes a No. 2 slot 3-1, an extension section 3-2, a bolt 3-3, and a waterstop 3-4. The extension section 3-2 extends into the No. 2 slot 3-1, and the two are connected by the bolt 3-3. Specifically, the No. 2 slot 3-1 has a bolt hole, allowing the bolt 3-3 to be screwed in. A waterstop 3-4 is installed in the gap of the pipe gallery joint 3; the waterstop 3-4 expands when exposed to water, forming a strip shape that fits tightly against one side of the pipe gallery joint 3.

[0043] like Figure 5 , 7 As shown, the central wall 1-8 is made of EPS concrete, which is lightweight and has good seismic performance. The central wall 1-8 and the No. 2 dampers 1-12 installed at both ends are connected by limiting devices 1-13 and bolts 3-3, which facilitates timely replacement of the central wall 1-8 if it is damaged. Specifically, both the central wall 1-8 and the No. 2 damper 1-12 have No. 1 slots 1-14. The limiting device 1-13 is a U-shaped connecting card. The two ends of the connecting card are inserted into the No. 1 slots 1-14 on both sides to achieve connection. The limiting device 1-13 is fixed by bolts 3-3. There is a bolt hole on the No. 1 slot 1-14 so that the bolts 3-3 can be screwed in.

[0044] The cavity 1-2 is equipped with a buckling restraint support 1-5 and filled with gelatin 1-4. The buckling restraint support 1-5 and the rubber plate 1-6 work together to give the cavity 1-2 the ability to expand and contract. At the same time, the gelatin 1-4 absorbs water and expands upon contact with water, absorbing 5-10 times its own weight in water, which can quickly fill the seepage channels, enabling the cavity 1-2 to solve the problem of water seepage from cracks in the pipe gallery. Meanwhile, the cavities 1-2 are separated by rubber plates 1-6, with the buckling restraint support 1-5 placed between the two rubber plates 1-6.

[0045] The above are merely some preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A prefabricated pipe gallery with toughening and seepage prevention functions, characterized in that, It includes a precast pipe gallery (1), a high-pressure nozzle excavation device (2), and a pipe gallery joint (3). The pipe gallery joint (3) is set at the end of the precast pipe gallery (1). The pipe gallery joints (3) are connected to each other to connect adjacent precast pipe galleries (1). The high-pressure nozzle excavation device (2) is set on the precast pipe gallery (1). The prefabricated pipe gallery (1) includes a pipe gallery shell (1-1), a cavity (1-2), and an internal support frame (1-3). The cavity (1-2) is filled with gelatin (1-4) and a buckling restraint brace (1-5) is installed thereon. One end of the buckling restraint brace (1-5) is connected to the pipe gallery shell (1-1), and the other end is connected to a rubber plate (1-6). The rubber plate (1-6) is embedded in the internal support frame (1-3). A central wall (1-8) is provided in the space formed by the internal support frame (1-3). Dampers No. 2 (1-12) are provided at both ends of the central wall (1-8). The dampers No. 2 (1-12) are connected to the internal support frame (1-3). The pipe gallery joint (3) includes a No. 2 slot (3-1), an extension section (3-2), and a waterstop (3-4); the extension section (3-2) extends into the No. 2 slot (3-1), and the two are connected by bolts (3-3); a waterstop (3-4) is provided in the gap of the pipe gallery joint (3); the waterstop (3-4) expands when it comes into contact with water and is in the shape of a strip that is tightly attached to one side of the pipe gallery joint (3).

2. A prefabricated pipe gallery with toughening and seepage prevention function according to claim 1, characterized in that: The high-pressure nozzle excavation device (2) includes a high-pressure nozzle (2-1), a concrete conveying channel (2-2), a slurry pumping pipe (2-3), and a high-pressure water conveying pipe (2-4). The high-pressure nozzle (2-1) is installed outside the precast pipe gallery (1) and is connected to the concrete conveying pipe (2-2), the slurry pumping pipe (2-3), and the high-pressure water conveying pipe (2-4). The concrete conveying pipe (2-2), the slurry pumping pipe (2-3), and the high-pressure water conveying pipe (2-4) are connected to the liquid channel (1-9). The liquid channel (1-9) is located in the lower part of the space formed by the internal support frame (1-3) of the pipe gallery.

3. A prefabricated pipe gallery with toughening and seepage prevention function according to claim 1, characterized in that: Pipeline (1-7) is also installed in the space formed by the internal support frame (1-3) of the pipe gallery. Pipeline (1-7) is installed on damper No. 1 (1-10). Damper No. 1 (1-10) is connected to pipeline platform (1-11). Pipeline platform (1-11) is connected to the internal support frame (1-3) of the pipe gallery.

4. A prefabricated pipe gallery with toughening and seepage prevention function according to claim 1, characterized in that: The central walls (1-8) are made of EPS concrete.

5. A prefabricated pipe gallery with toughening and seepage prevention function according to claim 1, characterized in that: The central wall (1-8) and the No. 2 damper (1-12) are connected by a limiting device (1-13).

6. A precast pipe gallery with toughening and seepage prevention function according to claim 5, characterized in that: The central wall (1-8) and the damper (1-12) are both provided with slot 1 (1-14). The limiting device (1-13) is set as a U-shaped connecting card. The two ends of the connecting card are inserted into slot 1 (1-14) on both sides to achieve connection. The limiting device (1-13) is fixed by bolt (3-3).

7. A prefabricated pipe gallery with toughening and seepage prevention function according to claim 2, characterized in that: The internal support frame (1-3) of the pipe gallery is equipped with a level (1-15). The level (1-15) monitors the tilt direction and angle of the precast pipe gallery (1). When uneven settlement occurs in the pipe gallery, cement slurry is delivered to the high-pressure nozzle (2-1) from the concrete delivery pipe (2-2) to fill the soil on the side of the foundation that is relatively settled. On the side of the foundation that is relatively raised, high-pressure water is delivered to the high-pressure nozzle (2-1) from the high-pressure water delivery pipe (2-4) to cut the soil. At the same time, the high-pressure nozzle (2-1) discharges the mud through the slurry pumping channel (2-3). The liquid channel is equipped with a flow control regulating valve (2-5) to control the flow rate of the liquid output from each channel.

8. A prefabricated pipe gallery with toughening and seepage prevention function according to claim 1, characterized in that: The rubber plates (1-6) are distributed around the buckling restraint support (1-5), dividing the cavity (1-2) into multiple equal parts to prevent leakage at one point from causing the failure of the entire cavity (1-2) and to improve the overall toughness of the pipe gallery.

9. A precast pipe gallery with toughening and seepage prevention function according to claim 7, characterized in that: The level (1-15) mentioned above is an electronic level.

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