Automatic drainage device for mid-partition wall top of double-arch tunnel

Abstract

According to the automatic drainage device for the mid-partition wall top of the double-arch tunnel, the two sides of a mid-partition wall are connected with a first tunnel main hole and a second tunnel main hole respectively, a filter plate and a drainage assembly are arranged on the mid-partition wall, the filter plate is arranged above the top face of the mid-partition wall, and the filter plate is used for passing water and blocking gravel, the two sides of the filter plate are correspondingly connected with one side of the first tunnel main hole and one side of the second tunnel main hole correspondingly, a water collecting area is formed by the first tunnel main hole, the second tunnel main hole and the top face of the middle partition wall, and water deposited in the tunnel flows into the water collecting area through the filter plate and is drained through the drainage assembly. And the use performance of the mid-partition wall is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, in particular to an automatic drainage device for the top of a partition wall in a double-arch tunnel. Background Art

[0002] The construction of highway tunnels can not only straighten the highway, improve the highway grade, and reduce accidents, but also shorten the highway mileage, save project investment and vehicle operation costs after completion. Tunnels in domestic high-grade highways appear in the form of double arches when they are short in length, shallow in burial depth, or restricted by mountains and terrain, and have received widespread attention. Drainage and drainage are the key and difficult issues that need to be solved in the design and construction of double arch tunnels. The middle partition wall is the weak link in the drainage and drainage of double arch tunnels. The drainage and drainage of the middle partition wall is to effectively drain the water gathered at the arch tops of the left and right main tunnels into the drainage ditches at the bottom of the two sides of the middle partition wall. However, in the drainage and drainage construction of the middle partition wall of the double arch tunnel, if the quality is not in place, it is very easy to cause water leakage on the top of the middle partition wall of the double arch tunnel, reducing the stability of the middle partition wall. Utility Model Content

[0003] In view of this, the automatic drainage device for the top of the middle partition wall of a double-arch tunnel provided by the utility model adopts an effective drainage structure to improve the stability of the middle partition wall.

[0004] An automatic drainage device for the top of the middle partition wall of a double-arch tunnel, wherein the two sides of the middle partition wall are respectively connected to the main hole of the first tunnel and the main hole of the second tunnel, and the middle partition wall is provided with a filter plate and a drainage assembly, wherein the filter plate is placed above the top surface of the middle partition wall, and the filter plate is used for passing water and blocking sand and gravel, wherein:

[0005] The two sides of the filter plate are respectively connected to one side of the first tunnel main hole and the second tunnel main hole. The first tunnel main hole, the second tunnel main hole and the top surface of the middle partition wall form a water collection area. The water deposited in the tunnel flows into the water collection area through the filter plate and is discharged through the drainage component.

[0006] Preferably or optionally, the filter plate is arranged in an arc-shaped structure with the center of the circle facing the middle partition wall, and a plurality of water holes are arranged on the surface of the filter plate.

[0007] Preferably or optionally, a sand and gravel filter layer is provided on the upper surface of the filter plate, and the sand and gravel filter layer is used to filter the sand and gravel deposited or dropped in the tunnel to avoid clogging the drainage component.

[0008] Preferably or optionally, a gap is left between the sand and gravel filter layer and the filter plate.

[0009] Preferably or optionally, the water assembly includes a first drain pipe, a connecting pipe and a second drain pipe, wherein the connecting pipe is arranged in the middle partition wall,

[0010] One end of the first drainage pipe is partially embedded in the middle partition wall, and the other end extends out of the top surface of the middle partition wall and communicates with the water collection area;

[0011] The second drain pipe is separated by the side of the middle partition wall in the center line direction, and one end of the second drain pipe is connected with one end of the first drain pipe through the connecting pipe. The accumulated water in the water collection area flows into the first drain pipe and is discharged through the second drain pipe.

[0012] Beneficial Effects

[0013] The water in the water collection area is quickly discharged through the drainage component, and the water in the water collection area filters the sand and gravel through the filter plate to ensure that the drainage component will not be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure;

[0016] Figure 2 It is the main view of the drainage component;

[0017] Figure 3 is a schematic diagram of setting up the insulation layer, where:

[0018] 1. The main hole of the first tunnel; 2. The main hole of the second tunnel; 3. The middle partition wall; 5. The sand and gravel filter layer; 6. The filter plate; 7. The PVC waterproof board; 9. The motor; 10. The negative pressure pipe; 11. The first drainage pipe; 12. The second drainage pipe; 13. The connecting pipe; 15. The drainage channel; 16. The insulation layer. DETAILED DESCRIPTION

[0019] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0020] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0021] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0022] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The drawings only show components related to the present disclosure rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0023] See also Figures 1 to 3 The automatic drainage device on the top of the middle partition wall 3 of the double-arch tunnel shown in the figure has two sides of the middle partition wall 3 connected to the first tunnel main hole 1 and the second tunnel main hole 2 respectively, and one end of the first tunnel main hole 1 and the second tunnel main hole 2 are connected to the top surface of the middle partition wall 3. It includes a filter plate 6 and a drainage component arranged on the middle partition wall 3. The filter plate 6 is placed above the top surface of the middle partition wall 3. The filter plate 6 is used to pass water and block sand and gravel.

[0024] The two sides of the filter plate 6 are respectively connected to one side of the first tunnel main hole 1 and the second tunnel main hole 2. The first tunnel main hole 1, the second tunnel main hole 2 and the top surface of the middle partition wall 3 form a water collection area. The water deposited in the tunnel flows into the water collection area through the filter plate 6 and is discharged through the drainage component. The stability of the middle partition wall 3 of the double-arch tunnel is very important. It is an important component of force and bearing capacity. Excessive accumulation of water will slowly corrode the stability of the middle partition wall 3. Drainage is performed through the drainage component to ensure the performance of the middle partition wall 3. Preferably, the area where the water collection area overlaps with the first tunnel main hole 1 and the second tunnel main hole 2 is respectively provided with a PVC waterproof board 7 or a waterproof material layer to provide waterproof protection for the first tunnel main hole 1 and the second tunnel main hole 2.

[0025] As a specific implementation provided in this case, the filter plate 6 is arranged in an arc structure with the center of the circle facing the middle partition wall 3. A plurality of water holes or water pipes are arranged on the surface of the filter plate 6. For example, an arc slope structure is arranged. The sand and gravel dropped or deposited in the tunnel are gathered to both sides under the action of the slope to avoid the silt blocking the drainage component. Preferably, a sand and gravel filter layer 5 of a matching shape is arranged on the upper surface of the filter plate 6. The sand and gravel filter layer 5 is used to filter the sand and gravel deposited or dropped in the tunnel to avoid clogging the drainage component. The sand and gravel filter layer 5 is, for example, a reinforced concrete plate.

[0026] Furthermore, a gap is left between the sand and gravel filter layer 5 and the filter plate 6 to prevent the sand and gravel from clogging the water holes or water pipes on the filter plate 6, thereby ensuring the drainage efficiency in the water collection area.

[0027] As a specific implementation provided in this case, the water assembly includes a first drain pipe 11, a connecting pipe 13 and a second drain pipe 12, wherein the connecting pipe 13 is arranged in the middle partition wall 3,

[0028] One end of the first drainage pipe 11 is partially embedded in the middle partition wall 3, and the other end extends out of the top surface of the middle partition wall 3 and communicates with the water collection area;

[0029] A second drain pipe 12 is separated on the side of the middle partition wall 3 in the center line direction. One end of the second drain pipe 12 is connected to one end of the first drain pipe 11 through a connecting pipe 13. The accumulated water in the water collection area flows into the first drain pipe 11 and is discharged through the second drain pipe 12.

[0030] As a specific implementation method provided in this case, a drainage channel 15 is arranged at the joint position between the ground and the bottom surface of the middle partition wall 3. The drainage channel 15 is connected to the second drainage pipe 12 and is used to discharge the accumulated water from the tunnel. In addition, an insulation layer 16 is arranged on the outer circumference of the second drainage pipe 12 to prevent the water in the second drainage pipe 12 from freezing. The temperature in some areas of my country is relatively low in winter, and the temperature in the tunnel is even lower, which can easily cause the water in the second drainage pipe 12 to freeze. The setting of the insulation layer 16 can avoid this.

[0031] Furthermore, since the structure of the middle partition wall 3 is relatively important, when water accumulates too quickly, rapid drainage is required. Therefore, the first tunnel main hole 1 is provided with an installation groove at a position corresponding to the first drainage pipe 11, and a waterproof motor 9 and a negative pressure pipe 10 are provided in the installation groove. One end of the negative pressure pipe 10 is connected to the first drainage pipe 11, and the rotating shaft of the motor 9 extends into the other end of the negative pressure pipe 10, and a negative pressure type wind blade is installed. When the motor 9 is working, a negative pressure is formed in the negative pressure pipe 10 to increase the drainage volume of the first drainage pipe 11. Generally, the motor 9 is provided with a controller, which cooperates with the water level sensor provided in the water collection area to drain water and accelerate the drainage process. Considering the economy, generally several motors 9 are provided, and they are provided on one side, and there is no need to configure a motor 9 for each first drainage pipe 11.

[0032] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An automatic drainage device for the top of the middle partition wall of a double-arch tunnel, wherein both sides of the middle partition wall are respectively connected to the main hole of the first tunnel and the main hole of the second tunnel, characterized in that: The middle partition wall is provided with a filter plate and a drainage assembly, the filter plate is placed above the top surface of the middle partition wall, the filter plate is used for passing water and blocking sand and gravel, wherein, The two sides of the filter plate are respectively connected to one side of the first tunnel main hole and the second tunnel main hole. The first tunnel main hole, the second tunnel main hole and the top surface of the middle partition wall form a water collection area. The water deposited in the tunnel flows into the water collection area through the filter plate and is discharged through the drainage component.

2. The automatic drainage device according to claim 1, characterized in that: The filter plate is arranged in an arc-shaped structure with the center of the circle facing the middle partition wall, and a plurality of water holes are arranged on the surface of the filter plate.

3. The automatic drainage device according to claim 2, characterized in that: The upper surface of the filter plate is provided with a sand and gravel filter layer, and the sand and gravel filter layer is used to filter the sand and gravel deposited or dropped in the tunnel to avoid clogging the drainage component.

4. The automatic drainage device according to claim 3, characterized in that: A gap is left between the sand and gravel filter layer and the filter plate.

5. The automatic drainage device according to claim 1, characterized in that: The water assembly includes a first drain pipe, a connecting pipe and a second drain pipe, wherein the connecting pipe is arranged in the middle partition wall, One end of the first drainage pipe is partially embedded in the middle partition wall, and the other end extends out of the top surface of the middle partition wall and communicates with the water collection area; The second drain pipe is separated by the side of the middle partition wall in the center line direction, and one end of the second drain pipe is connected with one end of the first drain pipe through the connecting pipe. The accumulated water in the water collection area flows into the first drain pipe and is discharged through the second drain pipe.

6. The automatic drainage device according to claim 5, characterized in that: A drainage channel is arranged at the position where the ground and the bottom surface of the middle partition wall meet, and the drainage channel is connected with the second drainage pipe for draining the accumulated water from the tunnel.

7. The automatic drainage device according to claim 5, characterized in that: A heat-insulating layer is arranged on the outer circumference of the second drain pipe to prevent the water in the second drain pipe from freezing.

8. The automatic drainage device according to claim 5, characterized in that: The main hole of the first tunnel is provided with an installation groove at a position corresponding to the first drainage pipe, and a waterproof motor and a negative pressure pipe are arranged in the installation groove. One end of the negative pressure pipe is connected to the first drainage pipe, and the rotating shaft of the motor extends into the other end of the negative pressure pipe and is provided with a negative pressure wind blade. When the motor is working, negative pressure is formed in the negative pressure pipe to increase the drainage volume of the first drainage pipe.

9. The automatic drainage device according to claim 1, characterized in that: The areas where the water collection area is connected and overlapped with the main tunnel of the first tunnel and the main tunnel of the second tunnel are respectively provided with waterproof material layers.

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