Basalt cable duct for railway tunnels and method for manufacturing the same

Abstract

The application discloses a basalt cable trough for a railway tunnel and a preparation method thereof, which comprises a trough body and a trough cover, both ends of the trough body are open, and the cross sections of the trough body and the trough cover are in the shape of a Chinese character door; the trough cover can be buckled at the slot opening of the trough body; the outer wall of the trough body and the surface of the trough cover are respectively uniformly coated with epoxy resin; the side of the outer wall of the trough body and the side of the trough cover away from the trough body are respectively uniformly paved with a basalt fiber net, and the basalt fiber net is immersed in the epoxy resin. The outer wall of the trough body and the surface of the trough cover are respectively uniformly coated with epoxy resin, which can improve the corrosion resistance of the trough body and the trough cover; the side of the outer wall of the trough body and the side of the trough cover away from the trough body are respectively uniformly paved with a basalt fiber net, which can ensure that the epoxy resin is firmly bonded with the trough body or the trough cover; the basalt fiber net has high toughness and corrosion resistance, which can further improve the corrosion resistance of the trough body and the trough cover and improve the structural strength of the trough body and the trough cover.

Description

Technical Field

[0001] This invention relates to the field of tunnel facilities, and more specifically to a basalt cable trough for railway tunnels and a method for its preparation. Background Technology

[0002] Currently, the cable trays used in railway tunnels on the market are made of fiberglass. This type of cable tray has a simple structure and low cost, but it has poor strength, low waterproofness and durability. Due to the complex environment inside the tunnel, cable trays made of the above material need to be inspected regularly after a period of use to prevent corrosion or damage by insects or rats.

[0003] Therefore, how to provide a basalt cable trough for railway tunnels and its preparation method, so as to overcome the above problems, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a basalt cable trough for railway tunnels.

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

[0006] A basalt cable trough for railway tunnels includes: a trough body and a trough cover. The trough body is open at both ends and the cross-section of both the trough body and the trough cover is U-shaped. The trough cover can be fastened to the opening of the trough body. Epoxy resin is uniformly coated on the outer wall of the trough body and the surface of the trough cover. Basalt fiber mesh is uniformly laid on the outer wall of the trough body and the side of the trough cover away from the trough body. The basalt fiber mesh is immersed in the epoxy resin.

[0007] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a basalt cable trough for railway tunnels. In the present invention, the outer wall of the trough body and the surface of the trough cover are uniformly coated with epoxy resin. This setting can improve the corrosion resistance of the trough body and the trough cover. The outer wall of the trough body and the side of the trough cover away from the trough body are uniformly laid with basalt fiber mesh. This setting ensures that the epoxy resin can be firmly bonded to the trough body or the trough cover. On the other hand, the basalt fiber mesh has high toughness and corrosion resistance. This setting can further improve the corrosion resistance of the trough body and the trough cover, and improve the structural strength of the trough body and the trough cover.

[0008] Preferably, the device further includes a first limiting plate and a second limiting plate. The first limiting plate is vertically fixed to the bottom wall of the groove, and its surface is parallel to the length direction of the groove. The first limiting plate forms a slot with the inner side wall of the groove adjacent to it. The second limiting plate is vertically fixed to the inner wall of the groove cover, and its surface is parallel to the length direction of the groove cover. When the groove and the groove cover are engaged, the second limiting plate can be inserted into the slot. By providing the first and second limiting plates, the sealing performance of the connection between the groove and the groove cover can be improved.

[0009] Preferably, two limiting plates are vertically fixed to the bottom wall of the groove, and each limiting plate is arranged close to one of the two inner sidewalls of the groove; two limiting plates are vertically fixed to the inner wall of the groove cover, and each limiting plate can be inserted into one of the two slots. This arrangement can further improve the sealing performance of the connection between the groove and the groove cover.

[0010] Preferably, the second limiting plate is interference-fitted with the slot. This design ensures that the slot body and the slot cover can be securely fastened together and will not easily separate.

[0011] Preferably, the system further includes multiple connecting plates, each of which is fixed to the bottom wall of the groove and the surface of the limiting plate. The surface of the connecting plate is perpendicular to the length of the groove. The multiple connecting plates are evenly arranged at both ends of the groove, and the surface of the connecting plates is flush with the end wall of the groove. Each connecting plate has a through hole for a connecting bolt. One end wall of two adjacent grooves can abut against each other and be fixed together by the connecting bolt. This arrangement ensures that two adjacent grooves can be reliably connected together.

[0012] Preferably, the assembly also includes a connector with a U-shaped cross-section and through grooves on its two inner sidewalls, the through grooves being located near the inner bottom wall of the connector; each of the two outer sidewalls of the groove has an integrally formed limiting strip, and when the end walls of two adjacent grooves abut, the connector can simultaneously be fastened to the outer walls of the two grooves, and the four limiting strips can each be embedded in two of the through grooves. This arrangement can improve the sealing performance at the connection between two adjacent grooves.

[0013] A method for preparing a basalt cable trough for railway tunnels includes: first, bending the trough body and the trough cover into shapes respectively; second, uniformly applying epoxy resin to the outer wall of the trough body and the surface of the trough cover respectively; and before the epoxy resin cures, uniformly laying a layer of basalt fiber mesh on the outer wall of the trough body and the side of the trough cover away from the trough body respectively, and ensuring that the basalt fiber mesh is completely immersed in the epoxy resin.

[0014] The cable troughs prepared by the above method have a simple structure, are easy to process, have good corrosion resistance and high strength, and are suitable for large-scale application in railway tunnels. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 It is an isometric view of two basalt cable troughs used in railway tunnels assembled together;

[0017] Figure 2 This is an isometric view of a basalt cable trench used in railway tunnels without epoxy resin coating.

[0018] Figure 3 This is an isometric view of a basalt cable trench cover for railway tunnels that has not been coated with epoxy resin.

[0019] Figure 4 This is an isometric drawing of a connector used in a basalt cable trough for railway tunnels.

[0020] Figure 5 This is a cross-sectional view of a basalt cable trench coated with epoxy resin, used in railway tunnels.

[0021] Figure 6 yes Figure 5 A magnified view of a section at point A in the middle;

[0022] Figure 7 This is a cross-sectional view of a basalt cable trough cover coated with epoxy resin, used in railway tunnels.

[0023] In the diagram:

[0024] 1 is the tank body, 2 is the tank cover, 3 is epoxy resin, 4 is basalt fiber mesh, 5 is the first limiting plate, 6 is the second limiting plate, 7 is the connecting plate, 70 is the through hole, 8 is the connecting bolt, 9 is the connecting piece, 90 is the through groove, and 10 is the limiting strip. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] This invention discloses a basalt cable trough for railway tunnels and its preparation method. The outer wall of the trough body 1 and the surface of the trough cover 2 are uniformly coated with epoxy resin 3, which improves the corrosion resistance of the trough body 1 and the trough cover 2. Basalt fiber mesh 4 is uniformly laid on the outer wall of the trough body 1 and the side of the trough cover 2 away from the trough body 1. This ensures that the epoxy resin 3 can firmly bond to the trough body 1 or the trough cover 2. Furthermore, the basalt fiber mesh 4 possesses high toughness and corrosion resistance, further improving the corrosion resistance of the trough body 1 and the trough cover 2, and also enhancing their structural strength. By setting a first limiting plate 5 and a second limiting plate 6, the trough body 1 and the trough cover 2 can be firmly fastened together, improving the sealing of the connection. By setting a connecting plate 7, adjacent trough bodies 1 can be reliably connected together. By setting a connecting piece 9, the sealing and bending resistance at the connection between adjacent trough bodies 1 can be further improved.

[0027] Example

[0028] See appendix Figure 1-7 This is a schematic diagram of the overall and partial structure of one embodiment of the present invention. The present invention specifically discloses a basalt cable trough for railway tunnels, including: a trough body 1 and a trough cover 2. Both the trough body 1 and the trough cover 2 are made of galvanized iron plate. The two ends of the trough body 1 are open and the cross sections of both the trough body 1 and the trough cover 2 are U-shaped. The length of a single trough body 1 is the same as the length of a single trough cover 2. The trough cover 2 can be tightly fastened to the opening of the trough body 1. Epoxy resin 3 is uniformly coated on the outer wall of the trough body 1 and the surface of the trough cover 2. Basalt fiber mesh 4 is uniformly laid on the outer wall of the trough body 1 and the side of the trough cover 2 away from the trough body 1. The basalt fiber mesh 4 is immersed in epoxy resin 3.

[0029] More specifically, it also includes a rectangular limiting plate 5 and a limiting plate 6. The limiting plate 5 is vertically welded to the bottom wall of the groove of the groove body 1. The surface of the limiting plate 5 is parallel to the length direction of the groove of the groove body 1. The length of the limiting plate 5 is the same as the length of the groove of the groove body 1. The limiting plate 5 and the inner side wall of the groove body 1 next to it form a slot. The limiting plate 6 is vertically welded to the inner wall of the groove cover 2. Note that the limiting plate 6 is not coated with epoxy resin 3. The outer wall of the groove cover 2 is coated with epoxy resin 3. The surface of the limiting plate 6 is parallel to the length direction of the groove cover 2. The length of the limiting plate 6 is the same as the length of the groove cover 2. When the groove body 1 and the groove cover 2 are fastened together, the limiting plate 6 can be tightly inserted into the slot.

[0030] More specifically, two limiting plates 5 are vertically fixed to the bottom wall of the tank 1, and the two limiting plates 5 are arranged close to the two inner side walls of the tank 1; two limiting plates 6 are vertically fixed to the inner wall of the tank cover 2, and the two limiting plates 6 can be inserted into the two slots respectively.

[0031] More specifically, the limiting plate 26 is interference-fitted with the slot so that when the slot cover 2 is fastened onto the slot body 1, the slot cover 2 will not easily separate from the slot body 1.

[0032] More specifically, it also includes four rectangular connecting plates 7, each of which is fixed to the bottom wall of the groove 1 and the plate surface of the limiting plate 5. The plate surface of the connecting plate 7 is perpendicular to the groove length direction of the groove 1. The four connecting plates 7 are evenly arranged at both ends of the groove 1. The plate surface of the connecting plate 7 is flush with the end wall of the groove 1. Each connecting plate 7 has a circular through hole 70 for passing through the connecting bolt 8. One end wall of two adjacent grooves 1 can abut and the two can be fixed by the connecting bolt 8. The bolt head of the connecting bolt 8 can be either internal hexagon or external hexagon, preferably internal hexagon, for the purpose of facilitating pre-tightening.

[0033] More specifically, it also includes connector 9, which is made of the same material as the tank body 1 and has a galvanized outer surface. The connector 9 has a U-shaped cross section and has through grooves 90 on its two inner side walls that pass through both end walls. The through grooves 90 are arranged close to the inner bottom wall of the connector 9. Each of the two outer side walls of the tank body 1 has an integrally formed limiting strip 10. The limiting strip 10 is adapted to the through groove 90. When the end walls of two adjacent tank bodies 1 abut, the connector 9 can be fastened to the outer walls of the two tank bodies 1 at the same time, and the four limiting strips 10 can be embedded in the two through grooves 90 respectively.

[0034] The method for preparing the basalt cable trough for railway tunnels includes: first, bending the trough body 1 and the trough cover 2 into shape respectively; second, uniformly applying epoxy resin 3 to the outer wall of the trough body 1 and the surface of the trough cover 2 respectively; and before the epoxy resin 3 cures, uniformly laying a layer of basalt fiber mesh 4 on the outer wall of the trough body 1 and the side of the trough cover 2 away from the trough body 1 respectively, and ensuring that the basalt fiber mesh 4 is completely immersed in the epoxy resin 3.

[0035] When using the basalt cable trough for railway tunnels, a certain number of trough bodies 1 are first connected according to the required length. After the trough bodies 1 are connected, connectors 9 are installed at the connection points between the trough bodies 1. After the connectors 9 are installed and arranged, cables are arranged in the trough bodies 1. After the cables are arranged, the trough cover 2 is tightly fastened to the trough body 1.

[0036] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A basalt cable trough for railway tunnels, characterized in that, include: The tank (1) and the tank cover (2) are open at both ends and the cross sections of the tank (1) and the tank cover (2) are both in the shape of a door. The tank cover (2) can be fastened to the opening of the tank (1). Epoxy resin (3) is evenly applied to the outer wall of the tank (1) and the surface of the tank cover (2). Basalt fiber mesh (4) is evenly laid on the outer wall of the tank (1) and the side of the tank cover (2) away from the tank (1). The basalt fiber mesh (4) is immersed in the epoxy resin (3). It also includes a first limiting plate (5) and a second limiting plate (6). The first limiting plate (5) is vertically fixed to the bottom wall of the groove (1). The surface of the first limiting plate (5) is parallel to the length direction of the groove (1). The first limiting plate (5) and the inner side wall of the groove (1) near it form a slot. The second limiting plate (6) is vertically fixed to the inner wall of the groove cover (2). The surface of the second limiting plate (6) is parallel to the length direction of the groove cover (2). When the groove (1) and the groove cover (2) are fastened together, the second limiting plate (6) can be inserted into the slot.

2. A basalt cable trough for railway tunnels according to claim 1, characterized in that, The bottom wall of the groove (1) is vertically fixed with two limiting plates (5), and the two limiting plates (5) are arranged close to the two inner side walls of the groove (1); the inner wall of the groove cover (2) is vertically fixed with two limiting plates (6), and the two limiting plates (6) can be inserted into the two slots respectively.

3. A basalt cable trough for railway tunnels according to claim 1, characterized in that, The limiting plate 2 (6) is interference-fitted with the slot.

4. A basalt cable trough for railway tunnels according to claim 1, characterized in that, It also includes multiple connecting plates (7), each of which is fixed to the bottom wall of the groove (1) and the plate surface of the limiting plate (5). The plate surface of the connecting plate (7) is perpendicular to the groove length direction of the groove (1). Multiple connecting plates (7) are equally arranged at both ends of the groove (1). The plate surface of the connecting plate (7) is flush with the end wall of the groove (1). Each connecting plate (7) has a through hole (70) for passing through the connecting bolt (8). The end walls of two adjacent grooves (1) can abut against each other and can be fixed by the connecting bolt (8).

5. A basalt cable trough for railway tunnels according to claim 1, characterized in that, It also includes a connector (9), the connector (9) has a cross-section in the shape of a door and through grooves (90) on its two inner side walls. The through grooves (90) are arranged close to the inner bottom wall of the connector (9). Each of the two outer side walls of the groove (1) is integrally formed with a limiting strip (10). When the end walls of two adjacent grooves (1) abut, the connector (9) can be fastened to the outer walls of the two grooves (1) at the same time, and the four limiting strips (10) can be embedded in the two through grooves (90) respectively.

6. A method for preparing basalt cable troughs for railway tunnels, characterized in that, A basalt cable trough for railway tunnels according to any one of claims 1-5 includes: firstly, bending the trough body (1) and the trough cover (2) into shape respectively; secondly, uniformly applying epoxy resin (3) to the outer wall of the trough body (1) and the surface of the trough cover (2), and before the epoxy resin (3) is cured, uniformly laying a layer of basalt fiber mesh (4) on the outer wall of the trough body (1) and the side of the trough cover (2) away from the trough body (1), and ensuring that the basalt fiber mesh (4) is completely immersed in the epoxy resin (3).

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