Railway tunnel lining back drainage structure

Abstract

The application discloses a railway tunnel lining back drainage structure, which comprises a primary mould lining and a secondary mould lining, and further comprises: a waterproof cloth laid on the inner side surface of the primary mould lining; a waterproof plate covered and installed on the surface of the waterproof cloth; a circumferential drainage filter pipe and a longitudinal drainage part. The railway tunnel lining back drainage structure is provided to overcome the existing defects, and through the cooperation design of the track body, the hinged seat and the convex shaft, the window plate realizes two-stage opening of vertical upward movement first and horizontal overturning second. In the vertical upward movement stage, the window plate is completely separated from the sealing gasket, frictional damage to the sealing part is avoided, the sealing effect provided by the sealing part is ensured, foreign matters can be effectively prevented from invading the drainage ditch, meanwhile, the opened window plate can be overturned to the side wall of the tunnel and fixed by using a hook, the operation space of the drainage ditch is completely released, the channel is not occupied, and one person can easily complete the opening operation.

Description

Technical Field

[0001] This invention relates to a drainage structure behind the lining of a railway tunnel. Background Technology

[0002] In the existing technology, although the drainage ditches in the lining of railway tunnels serve the function of collecting and discharging groundwater, their openings are usually open or simply covered. Dust, gravel, and operational waste in the tunnel can easily enter the ditch, causing siltation and blockage, increasing the frequency and workload of dredging. At the same time, there is nowhere to put the open cover plate, which may occupy the passage or pose a safety hazard.

[0003] Therefore, a drainage structure behind the lining of railway tunnels is proposed to address the above issues. Summary of the Invention

[0004] The purpose of this invention is to overcome the existing defects and provide a drainage structure behind the lining of railway tunnels, which can solve the problems mentioned in the background art, such as poor sealing of the opening of the drainage ditch of traditional railway tunnel linings and easy intrusion of impurities leading to blockage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drainage structure behind railway tunnel lining, comprising primary cast-in-place lining and secondary cast-in-place lining, and further comprising: Waterproof cloth is laid on the inner surface of the primary cast-in-place lining; A waterproof membrane is installed over the surface of the waterproof fabric. Both the circumferential drainage filter pipe and the longitudinal drainage component are embedded between the primary cast-in-place lining and the waterproof fabric; The drainage ditch is integrally cast with the template and the secondary molding lining. The outlet of the circumferential drainage filter pipe and the outlet of the longitudinal drainage component are both connected to the drainage ditch. A surface layer is disposed at the opening of the drainage ditch; The auxiliary structure is integrated into the surface layer plate.

[0006] Preferably, the longitudinal drainage element includes: Longitudinal drainage filter pipe; A connecting pipe, the outlet of which is connected to the drainage ditch; Connecting pipe fittings are used to connect the longitudinal drainage filter pipe and the connecting pipe.

[0007] Preferably, the auxiliary structure includes: A window panel is closable and can be installed at the window of the surface panel; The track body is fixedly mounted on the surface of the surface plate; A hinged base is fixedly installed on the surface of the window panel and movably connected to the rail, so that the window panel can be moved upward along the rail and then flipped.

[0008] Preferably, the auxiliary structure further includes: The handle has a shaft at its end, and the shaft is rotatably connected to the window panel; The hook is anchored inside the secondary molded lining and integrally formed with the secondary molded lining, and is used to hang the ring part of the handle after the window panel is fully opened.

[0009] Preferably, the auxiliary structure further includes: A reset torsion spring is fixed to the end of the shaft, with its end away from the shaft being fixedly connected to the window panel. The surface of the window panel has an opening for accommodating the handle, and the reset torsion spring is used to drive the handle to return to the opening after it is released.

[0010] Preferably, the auxiliary structure further includes: A sealing gasket is disposed between the window panel and the surface panel; A square key is fixed to the side of the hinge seat; A convex shaft is fixed to the side of the square key away from the hinge seat, and both the square key and the convex shaft are located inside the rail body; The top of the rail body has a circular anti-crack hole larger than the square key, which allows the window plate to flip after the convex shaft slides in.

[0011] Preferably, the auxiliary structure further includes a stop structure for locking the window panel in the closed state, the stop structure comprising: The lower anchor nut is integrally fixed inside the surface plate; An anchor nut is integrally fixed inside the window panel; A disc-shaped shaft is rotatably mounted inside the window plate via a limiting ring on its surface; The transmission rod is fixed to the bottom surface of the disc-shaped shaft; The threaded rod is slidably connected to the transmission rod and always maintains a threaded connection with the upper anchoring nut; The threaded rod, upper anchor nut, and lower anchor nut are coaxially arranged. When the disc shaft rotates, it drives the threaded rod to rotate through the transmission rod, so that the threaded rod is screwed downward into the lower anchor nut to achieve locking.

[0012] Preferably, the stop structure further includes: The T-shaped shaft is rotatably connected to the surface of the window panel; A connecting rod, connecting the T-shaped shaft to at least two of the disc-shaped shafts; The connection between the T-shaped shaft and the connecting rod, and the connection between the disc-shaped shaft and the connecting rod, are both provided with auxiliary shafts for realizing rotational transmission.

[0013] Preferably, the surface of the transmission rod is fixedly provided with a protruding ridge, and the inner wall of the opening of the threaded rod is provided with a notch that matches the protruding ridge, so as to realize the sliding connection between the transmission rod and the threaded rod and the circumferential limit.

[0014] Preferably, a limiting block is fixedly provided at one end of the transmission rod located inside the threaded rod. The size of the limiting block is larger than the opening size of the threaded rod, in order to prevent the threaded rod from falling off the transmission rod.

[0015] Compared with the prior art, the advantages of this invention are as follows: Through the cooperative design of the rail body, hinge seat, and convex shaft, the window panel achieves a two-stage opening, first moving vertically upwards and then flipping horizontally. During the vertical upward movement, the window panel is completely separated from the sealing gasket, avoiding friction damage to the sealing element, thereby ensuring the sealing effect provided by the sealing element and effectively preventing external impurities from entering the drainage ditch; at the same time, after opening, the window panel can be flipped to the tunnel side wall and fixed with hooks, completely releasing the operating space of the drainage ditch without occupying the passage, and a single person can easily complete the opening operation. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is an isometric view of the tunnel lining structure of the present invention; Figure 2 This is a cross-sectional view of the tunnel lining structure of the present invention; Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a cross-sectional view of the longitudinal drainage component structure of the present invention; Figure 5 This is a schematic diagram of the open state of the window panel structure of the present invention; Figure 6 This is an exploded view of the window panel structure of the present invention; Figure 7 This is a perspective view of the window panel structure of the present invention; Figure 8 This is a cross-sectional view of the window panel structure of the present invention; Figure 9 This is a schematic diagram of the connecting rod structure of the present invention.

[0017] In the diagram: 1. Primary formwork lining; 2. Secondary formwork lining; 3. Waterproof cloth; 4. Waterproof membrane; 5. Drainage ditch; 6. Surface plate; 7. Circumferential drainage filter pipe; 8. Longitudinal drainage component; 81. Longitudinal drainage filter pipe; 82. Connecting pipe fitting; 83. Connecting pipe; 9. Auxiliary structure; 91. Window plate; 92. Rail body; 93. Handle; 94. Hook; 95. Sealing gasket; 96. Hinge seat; 97. Square key; 98. Convex shaft; 99. Cylindrical cavity; 910. Shaft body; 911. Return torsion spring; 912. Disc shaft; 913. Transmission rod; 914. Limiting block; 915. Upper anchoring nut; 916. Lower anchoring nut; 917. Threaded rod; 918. Square cavity; 919. T-shaped shaft; 920. Connecting rod; 921. Convex ridge; 922. Limiting ring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0019] like Figures 1 to 9 As shown, the drainage structure behind the railway tunnel lining: After the initial formwork lining 1 is completed inside the tunnel, circumferential drainage filter pipes 7 and longitudinal drainage components 8 are laid first. Then, waterproof cloth 3 is used to cover the circumferential drainage filter pipes 7 and longitudinal drainage components 8. Subsequently, waterproof board 4 is installed and covered on the surface of the waterproof cloth 3. Finally, secondary formwork lining 2 is carried out on the inner side of the waterproof board 4. At the same time, drainage ditch 5 is integrally formed by casting with templates. The outlets of the circumferential drainage filter pipes 7 and the outlets of the longitudinal drainage components 8 are all connected to the drainage ditch 5 to achieve the purpose of unblocking drainage. At the same time, a surface plate 6 is set at the opening of the drainage ditch 5 to prevent external impurities from entering the drainage ditch 5 and causing blockage. The longitudinal drainage component 8 consists of a longitudinal drainage filter pipe 81 and a connecting pipe 83. The longitudinal drainage filter pipe 81 and the connecting pipe 83 are connected by a connecting pipe fitting 82, and the outlet of the connecting pipe 83 is connected to the drainage ditch. 5; An auxiliary structure 9 is integrated on the surface plate 6. The window plate 91 of the auxiliary structure 9 is used to cover the window of the surface plate 6 for inserting the dredging pipe. A hinge seat 96 is fixedly installed on the surface of the window plate 91. The hinge seat 96 is movably connected to the rail 92 fixed on the surface of the surface plate 6. Therefore, the window plate 91 can be moved upward and flipped along the rail 92 to open the window of the surface plate 6. The handle 93 is rotatably connected to the window plate 91 by the shaft 910 at its end. Therefore, the handle 93 can be pulled up first, and then the force applied by the handle 93 can be used to lift the entire window plate 91 and flip it until the window of the surface plate 6 is fully opened. Then, the ring part of the handle 93 can be hung on the hook 94 on the inner wall of the secondary molded lining 2. The hook 94 is anchored to the tensile steel bars inside the secondary molded lining 2 and is integrally formed with the secondary molded lining 2.

[0020] Example 1: A return torsion spring 911 is fixed to the end of the shaft 910. The end of the return torsion spring 911 away from the shaft 910 is fixedly connected to the window plate 91. The surface of the window plate 91 has an opening for accommodating the entire handle 93. When the handle 93 is lifted, the return torsion spring 911 twists and deforms. Therefore, after the handle 93 is released, the return torsion spring 911 releases potential energy, the handle 93 reverses, and is placed back inside the opening of the window plate 91, preventing the handle 93 from bulging.

[0021] Example 2: A sealing gasket 95 is provided between the window panel 91 and the surface panel 6; a square key 97 is fixed to the side of the hinge seat 96, and a convex shaft 98 is fixed to the side of the square key 97 away from the hinge seat 96. The square key 97 and the convex shaft 98 are located inside the rail body 92, and a circular anti-crack hole larger than the square key 97 is opened at the top of the rail body 92; therefore, when the square key 97 is below the anti-crack hole, the entire window panel 91 slides vertically up and down along the rail body 92. When the window panel 91 is covering the window of the surface panel 6, the window panel 91 contacts the sealing gasket 95 with the largest contact surface at the same time, thereby ensuring that after the window panel 91 is closed, all parts of the sealing gasket 95 can deform evenly to fill the gap between the window panel 91 and the surface panel 6; when the convex shaft 98 slides up to the anti-crack hole of the rail body 92, it cooperates with it, and at this time the entire window panel 91 can be flipped.

[0022] Example 3: The auxiliary structure 9 also integrates a stop structure for locking the window panel 91 to block the window of the surface layer 6. The lower anchoring nut 916 is integrally fixed inside the surface layer 6, and the upper anchoring nut 915 is also integrally fixed inside the window panel 91. The disc-shaped shaft 912 is rotatably positioned inside the window panel 91 via a limiting ring 922 on its surface. A transmission rod 913 fixed to the bottom surface of the disc-shaped shaft 912 is slidably connected to a threaded rod 917. The threaded rod 917, the upper anchoring nut 915, and the lower anchoring nut 916 are coaxially aligned, and the threaded rod 917 and the upper anchoring nut 915 always maintain a threaded connection. After the disc-shaped shaft 912 rotates, the transmission rod 913 synchronously drives the threaded rod 917 to rotate, and the upper anchoring nut... 915, the threaded rod 917 can be rotated downwards until the threaded rod 917 is threadedly connected to the lower anchoring nut 916 inside the surface plate 6. At this time, the window plate 91 can be locked onto the surface plate 6. A T-shaped shaft 919 is also rotatably connected to the surface of the window plate 91. A connecting rod 920 is set between the T-shaped shaft 919 and the two disc-shaped shafts 912. The connection part between the T-shaped shaft 919 and the connecting rod 920, and the connection part between the disc-shaped shaft 912 and the connecting rod 920 are all equipped with auxiliary shafts. Rotational connection realizes the transmission effect. Therefore, after the T-shaped shaft 919 rotates, the connecting rod 920 can drive the disc-shaped shaft 912 to rotate synchronously. Thus, operating a single T-shaped shaft 919 can drive multiple threaded rods 917 to rotate, realizing multi-point connection.

[0023] In one specific embodiment: a protruding ridge 921 is fixed on the surface of the transmission rod 913, and a notch is opened on the inner wall of the opening of the threaded rod 917 to cooperate with the protruding ridge 921, so that the transmission rod 913 and the threaded rod 917 maintain a sliding connection; and a limiting block 914 is fixed inside the threaded rod 917, the size of which is larger than the opening size of the threaded rod 917, so as to prevent the threaded rod 917 from falling off.

[0024] In one specific embodiment: a square cavity 918 is provided inside the window plate 91 to accommodate the connecting rod 920, giving the connecting rod 920 enough space to move and achieve the transmission effect, and a cylindrical cavity 99 is also provided on the top surface of the window plate 91 for connecting the T-shaped shaft 919.

[0025] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drainage structure behind the lining of a railway tunnel, comprising a primary cast-in-place lining (1) and a secondary cast-in-place lining (2), characterized in that, Also includes: Waterproof cloth (3) is laid on the inner surface of the primary cast lining (1); A waterproof membrane (4) is installed on the surface of the waterproof fabric (3); The circumferential drainage filter pipe (7) and the longitudinal drainage component (8) are both embedded between the primary cast-in-place lining (1) and the waterproof cloth (3); The drainage ditch (5) is integrally cast with the secondary molding lining (2) by means of a template. The outlet of the circumferential drainage filter pipe (7) and the outlet of the longitudinal drainage component (8) are both connected to the drainage ditch (5). A surface panel (6) is disposed at the opening of the drainage ditch (5); The auxiliary structure (9) is integrated on the surface plate (6).

2. The drainage structure behind the railway tunnel lining according to claim 1, characterized in that, The longitudinal drainage element (8) includes: Longitudinal drainage filter pipe (81); A connecting pipe (83) has its outlet connected to the drainage ditch (5); A connecting fitting (82) is used to connect the longitudinal drainage filter pipe (81) and the connecting pipe (83).

3. The drainage structure behind the railway tunnel lining according to claim 1, characterized in that, The auxiliary structure (9) includes: A window panel (91) is closably disposed at the window of the surface panel (6); The track body (92) is fixedly installed on the surface of the surface plate (6); The hinge seat (96) is fixedly installed on the surface of the window panel (91) and is movably connected to the rail (92), so that the window panel (91) can be moved up along the rail (92) and then flipped.

4. The drainage structure behind the railway tunnel lining according to claim 3, characterized in that, The auxiliary structure (9) also includes: The handle (93) has a shaft (910) at its end, and the shaft (910) is rotatably connected to the window panel (91); The hook (94) is anchored inside the secondary molded lining (2) and integrally formed with the secondary molded lining (2), and is used to hang the ring part of the handle (93) after the window plate (91) is fully opened.

5. The drainage structure behind the railway tunnel lining according to claim 4, characterized in that, The auxiliary structure (9) also includes: A reset torsion spring (911) is fixed to the end of the shaft (910), and its end away from the shaft (910) is fixedly connected to the window plate (91); The surface of the window plate (91) is provided with an opening for accommodating the handle (93), and the reset torsion spring (911) is used to drive the handle (93) to reset into the opening after it is released.

6. The drainage structure behind the railway tunnel lining according to claim 5, characterized in that, The auxiliary structure (9) also includes: A sealing gasket (95) is disposed between the window panel (91) and the surface panel (6); A square key (97) is fixed to the side of the hinge seat (96); A convex shaft (98) is fixed to the side of the square key (97) away from the hinge seat (96), and both the square key (97) and the convex shaft (98) are located inside the rail body (92). The top of the rail body (92) has a circular anti-crack hole with a size larger than that of the square key (97) to allow the window plate (91) to flip after the convex shaft (98) slides in.

7. The drainage structure behind the railway tunnel lining according to claim 3, characterized in that, The auxiliary structure (9) further includes a stop structure for locking the window panel (91) in the closed state, the stop structure comprising: The lower anchor nut (916) is integrally fixed inside the surface plate (6); The upper anchor nut (915) is integrally fixed inside the window plate (91); A disc-shaped shaft (912) is rotatably disposed inside the window plate (91) via a limiting ring (922) on its surface; The transmission rod (913) is fixed to the bottom surface of the disc-shaped shaft (912); The threaded rod (917) is slidably connected to the transmission rod (913) and always maintains a threaded connection with the upper anchor nut (915); The threaded rod (917), the upper anchor nut (915), and the lower anchor nut (916) are coaxially arranged. When the disc shaft (912) rotates, it drives the threaded rod (917) to rotate through the transmission rod (913), so that the threaded rod (917) is screwed downward into the lower anchor nut (916) to achieve locking.

8. The drainage structure behind the railway tunnel lining according to claim 7, characterized in that, The stop structure also includes: T-shaped shaft (919) is rotatably connected to the surface of the window panel (91); A connecting rod (920) is connected between the T-shaped shaft (919) and at least two of the disc-shaped shafts (912); The connection between the T-shaped shaft (919) and the connecting rod (920), and the connection between the disc-shaped shaft (912) and the connecting rod (920) are both provided with auxiliary shafts for realizing rotational transmission.

9. The drainage structure behind the railway tunnel lining according to claim 8, characterized in that, The transmission rod (913) has a protruding ridge (921) fixedly provided on its surface, and the inner wall of the opening of the threaded rod (917) has a notch that matches the protruding ridge (921) to realize the sliding connection and circumferential limit between the transmission rod (913) and the threaded rod (917).

10. The drainage structure behind the railway tunnel lining according to claim 9, characterized in that, A limiting block (914) is fixedly provided at one end of the transmission rod (913) inside the threaded rod (917). The size of the limiting block (914) is larger than the opening size of the threaded rod (917) to prevent the threaded rod (917) from falling off the transmission rod (913).

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