Tunnel lining polymer plug board and construction method

Abstract

The present application relates to the technical field of plug plate, in particular to a tunnel lining polymer plug plate and a construction method. The plug plate comprises a plurality of plug plate assemblies, the plurality of plug plate assemblies are connected at the head and tail to form a half-circular plugging plate, the plugging plate is used for being installed between the inner wall of the tunnel and the outer wall of the trolley and forming plugging; the plug plate assembly comprises an annular mounting plate, one side of the annular mounting plate is formed with a mounting cavity, the mounting cavity is provided with a first arc-shaped block and a second arc-shaped block which can move towards or away from each other, the first arc-shaped block is used for extending out of the outer arc side of the annular mounting plate and abutting against the inner wall of the tunnel, and the second arc-shaped block is used for extending out of the inner arc side of the annular mounting plate and abutting against the outer wall of the trolley. In actual use, by controlling the first arc-shaped block and the second arc-shaped block at the mounting cavity to move away from each other, the installation of the plug plate assembly between the inner wall of the tunnel and the outer wall of the trolley can be more efficiently realized, and then the construction period of the operator is shortened.

Description

Technical Field

[0001] This invention relates to the field of end-sealing plate technology, specifically to a polymer end-sealing plate for tunnel lining and its construction method. Background Technology

[0002] In tunnel construction, after the tunnel body is excavated, a concrete protective layer needs to be poured. A trolley is a piece of equipment used for pouring concrete during tunnel construction. It mainly consists of a gantry, an arc-shaped steel plate formwork, a hydraulic support device, and a trolley traveling mechanism. During construction, the trolley moves along a track laid inside the tunnel to the specific construction site. Then, the hydraulic support device supports the arc-shaped steel plate formwork to the designated position, and one end of the arc-shaped steel plate formwork is blocked with a wall. At this point, concrete can be poured directly into the space formed by the tunnel wall, the arc-shaped steel plate formwork, and the wall. Currently, most tunnel secondary linings are constructed using the lining trolley formwork method. To improve the waterproofing function of the lining, EVA waterproofing membranes and concrete with high impermeability are generally used. To prevent leakage at the construction joints of each secondary lining slab, embedded rubber waterstops are designed and installed at the ends of the secondary lining. However, the existing end-stop plates have complex installation procedures, wasting manpower and resources and delaying the construction period. Summary of the Invention

[0003] This invention provides a polymer plug plate for tunnel lining, which can overcome some or all the defects of the prior art.

[0004] According to the present invention, a polymer plug plate for tunnel lining includes multiple plug plate assemblies connected end to end to form a semi-circular sealing plate. The sealing plate is used to be installed between the inner wall of the tunnel and the outer wall of the trolley to form a seal. The plug plate assembly includes an annular mounting plate, and an mounting cavity is formed on one side of the annular mounting plate. A first arc-shaped block and a second arc-shaped block that can move towards or away from each other are provided in the mounting cavity. The first arc-shaped block is used to extend out of the outer arc side of the annular mounting plate and to abut against the inner wall of the tunnel. The second arc-shaped block is used to extend out of the inner arc side of the annular mounting plate and to abut against the outer wall of the trolley.

[0005] In practical use, the end-plug assembly provided by this invention allows operators to sequentially install multiple end-plug assemblies between the inner wall of the tunnel and the outer wall of the trolley. Specifically, by controlling the back-to-back movement of the first and second arc-shaped blocks at the installation cavity, the first arc-shaped block extends outward from the outer arc side of the annular mounting plate and abuts against the inner wall of the tunnel, while the second arc-shaped block extends outward from the inner arc side of the annular mounting plate and abuts against the outer wall of the trolley. This efficiently achieves the installation of the end-plug assembly between the inner wall of the tunnel and the outer wall of the trolley, thereby shortening the operator's construction cycle.

[0006] Furthermore, after the end cap assembly is used up, by controlling the first arc-shaped block and the second arc-shaped block at the installation cavity to move towards each other, the first arc-shaped block moves away from the inner wall of the tunnel and retracts into the installation cavity, and the second arc-shaped block moves away from the outer wall of the trolley and retracts into the installation cavity, thus better realizing the reuse of the end cap assembly.

[0007] It is worth noting that during the installation of multiple end cap components, workers can install them simultaneously from both sides of the tunnel, from bottom to top, make minor adjustments while installing, and make further adjustments after the overall installation is completed.

[0008] Preferably, a mounting seat is provided at the bottom wall of the mounting cavity, a shaft hole is provided at the mounting seat, and a positive and negative threaded rod is movably provided at the shaft hole. The two ends of the positive and negative threaded rod respectively cooperate with the first arc-shaped block and the second arc-shaped block.

[0009] The first bevel gear is coaxially provided in the middle of the positive and negative threaded rod. An annular mounting cover for sealing the mounting cavity is provided on one side of the annular mounting plate. A through hole is provided at the annular mounting cover. A rotating rod is movably provided at the through hole. A second bevel gear for meshing with the first bevel gear is provided at one end of the rotating rod that extends into the mounting cavity. A rotating part is provided at the other end of the rotating rod. The rotating part forms a regular hexagonal inner cavity.

[0010] With the above structure, after the operator installs the end plate assembly in the predetermined position, he uses a power tool or wrench to drive the rotating part to rotate, so that the rotating rod drives the positive and negative threaded rods to rotate, thereby better realizing the back-to-back movement between the first arc block and the second arc block, that is, they respectively abut against the inner wall of the tunnel and the outer wall of the trolley, which is more convenient.

[0011] Preferably, the mounting cavity is located at the first arc-shaped block and the second arc-shaped block respectively to form a first limiting part and a second limiting part. The corresponding side of the first arc-shaped block is provided with a first limiting block for cooperating with the first limiting part, and the corresponding side of the second arc-shaped block is provided with a second limiting block for cooperating with the second limiting part.

[0012] With the above structure, when the first arc-shaped block and the second arc-shaped block move in opposite directions, the first limiting part can block the first limiting block, thereby preventing the first arc-shaped block from fully extending out of the mounting cavity; the second limiting part can block the second limiting block, thereby preventing the second arc-shaped block from fully extending out of the mounting cavity.

[0013] Preferably, the mounting cavity has positioning grooves at both ends of the first arc-shaped block and the second arc-shaped block, and the first arc-shaped block has a first positioning block at both ends of the positioning groove, and the second arc-shaped block has a second positioning block at both ends of the positioning groove.

[0014] With the above structure, when the first arc-shaped block and the second arc-shaped block move towards or away from each other, the first positioning block and the second positioning block slide within the positioning groove, thus better maintaining the stability of the movement of the first arc-shaped block and the second arc-shaped block.

[0015] Preferably, the two ends of the first arc-shaped block and the two ends of the second arc-shaped block are respectively provided with a first mating groove and a second mating groove. The first mating groove and the second mating groove are respectively provided with a first filling block and a second filling block. The first filling block is used to extend out of the first mating groove when the first arc-shaped block extends out of the outer arc side of the annular mounting plate, and the end face of the extension is flush with the corresponding side of the annular mounting plate. The second filling block is used to extend out of the second mating groove when the second arc-shaped block extends out of the inner arc side of the annular mounting plate, and the end face of the extension is flush with the corresponding side of the annular mounting plate.

[0016] With the above structure, when the first arc-shaped block extends out of the outer arc side of the annular mounting plate, the first filling blocks at both ends of the first arc-shaped block extend out of the corresponding first mating grooves, and the end face of the first filling block extending out of the corresponding first mating groove is flush with the corresponding side of the annular mounting plate. Similarly, the end face of the second filling block extending out of the second mating groove is flush with the corresponding side of the annular mounting plate. Therefore, the gap between adjacent plug plate assemblies is reduced to form a better seal, thereby better preventing the seepage of cement slurry.

[0017] Preferably, the annular mounting plate has a first wedge-shaped surface at both ends of the outer arc side of the sidewall, and the first filling block has a second wedge-shaped surface that mates with the first wedge-shaped surface; the annular mounting plate has a third wedge-shaped surface at both ends of the inner arc side of the sidewall, and the second filling block has a fourth wedge-shaped surface that mates with the third wedge-shaped surface.

[0018] With the above structure, when the first filling block extends out of the first mating groove, the second wedge surface and the first wedge surface cooperate with each other, thus preferably forming a seal on the outer arc side of the plug plate assembly; and when the second filling block extends out of the second mating groove, the fourth wedge surface and the third wedge surface cooperate with each other, thus preferably forming a seal on the inner arc side of the plug plate assembly.

[0019] Preferably, the first mating groove is provided with a first sliding hole, the side wall of the first filling block is provided with a first sliding rod that slides within the first sliding hole, and the first mating groove is provided with a first compression spring sleeved on the outer wall of the first sliding rod for allowing the first filling block to extend out of the first mating groove; the second mating groove is provided with a second sliding hole, the side wall of the second filling block is provided with a second sliding rod that slides within the second sliding hole, and the second mating groove is provided with a second compression spring sleeved on the outer wall of the second sliding rod for allowing the second filling block to extend out of the second mating groove.

[0020] With the above structure, when the first arc-shaped block and the second arc-shaped block extend out of the mounting cavity, the first compression spring and the second compression spring respectively press the first filling block and the second filling block against the side wall of the corresponding annular mounting plate, which is more convenient.

[0021] Preferably, the annular mounting plate has a protrusion on one side of the ring and a groove on the other side of the ring, with the protrusion and groove of adjacent annular mounting plates connected and fitted together.

[0022] With the above structure, the installation of adjacent annular mounting plates, that is, the installation of adjacent end cap assemblies, can be achieved more effectively.

[0023] The present invention also provides a method for constructing a polymer end cap for tunnel lining, which is achieved by using any of the above-mentioned polymer end caps for tunnel lining. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the end cap assembly in Example 1.

[0025] Figure 2 This is another schematic diagram of the end cap assembly in Embodiment 1.

[0026] Figure 3 This is a schematic diagram of the internal structure of the end cap assembly in Example 1.

[0027] Figure 4 This is a schematic diagram of the annular mounting plate in Example 1.

[0028] Figure 5 This is a schematic diagram of the first arc-shaped block in Example 1.

[0029] Figure 6 This is a schematic diagram of the second arc-shaped block in Example 1.

[0030] Figure 7 This is a schematic diagram of the annular mounting cover in Example 1.

[0031] Figure 8 This is a schematic diagram of the first filling block in Example 1.

[0032] Figure 9 This is a schematic diagram of the second filling block in Example 1.

[0033] Figure 10 This is a schematic diagram of the sealing block in Example 1. Detailed Implementation

[0034] To further understand the content of this invention, the invention will be described in detail with reference to the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the invention.

[0035] Example 1

[0036] according to Figure 1-10 As shown, this embodiment provides a polymer plug plate for tunnel lining, which includes multiple plug plate assemblies 100. The multiple plug plate assemblies 100 are connected end to end to form a semi-circular sealing plate 1010. The sealing plate is used to be installed between the inner wall of the tunnel and the outer wall of the trolley to form a seal. The plug plate assembly 100 includes an annular mounting plate 110. An mounting cavity 310 is formed on one side of the annular mounting plate 110. A first arc-shaped block 210 and a second arc-shaped block 130 are provided at the mounting cavity 310, which can move towards or away from each other. The first arc-shaped block 210 is used to extend out of the outer arc side of the annular mounting plate 110 and to abut against the inner wall of the tunnel. The second arc-shaped block 130 is used to extend out of the inner arc side of the annular mounting plate 110 and to abut against the outer wall of the trolley.

[0037] In actual use, the end-plug assembly 100 provided in this embodiment allows operators to sequentially install multiple end-plug assemblies 100 between the inner wall of the tunnel and the outer wall of the trolley. Specifically, by controlling the first arc-shaped block 210 and the second arc-shaped block 130 at the installation cavity 310 to move in opposite directions, the first arc-shaped block 210 extends out of the outer arc side of the annular mounting plate 110 and abuts against the inner wall of the tunnel, while the second arc-shaped block 130 extends out of the inner arc side of the annular mounting plate 110 and abuts against the outer wall of the trolley. Therefore, the installation of the end-plug assembly 100 between the inner wall of the tunnel and the outer wall of the trolley is achieved more efficiently, thereby shortening the operator's construction cycle.

[0038] Furthermore, after the end cap assembly 100 is used up, by controlling the first arc-shaped block 210 and the second arc-shaped block 130 at the installation cavity 310 to move towards each other, the first arc-shaped block 210 moves away from the inner wall of the tunnel and retracts into the installation cavity 310, and the second arc-shaped block 130 moves away from the outer wall of the trolley and retracts into the installation cavity 310, thus better realizing the reuse of the end cap assembly 100;

[0039] It is worth noting that during the installation of multiple end cap components 100, workers can install them simultaneously from both sides of the tunnel, from bottom to top, make minor adjustments while installing, and make further adjustments after the overall installation is completed.

[0040] In this embodiment, a mounting base 320 is provided at the bottom wall of the mounting cavity 310, a shaft hole is provided at the mounting base 320, and a positive and negative threaded rod 330 is movably provided at the shaft hole. The two ends of the positive and negative threaded rod 330 respectively cooperate with the first arc block 210 and the second arc block 130.

[0041] A first bevel gear 390 is coaxially provided in the middle of the positive and negative threaded rod 330. An annular mounting cover 120 for sealing the mounting cavity 310 is provided on one side of the annular mounting plate 110. A through hole is provided at the annular mounting cover 120, and a rotating rod is movably provided at the through hole. One end of the rotating rod that extends into the mounting cavity 310 is provided with a second bevel gear 710 for meshing with the first bevel gear 390. The other end of the rotating rod is provided with a rotating part 150, which forms a regular hexagonal inner cavity.

[0042] With the above structure, after the operator installs the end plate assembly 100 in the predetermined position, he uses a power tool or wrench to drive the rotating part 150 to rotate, so that the rotating rod drives the positive and negative threaded rods 330 to rotate, thereby better realizing the back-to-back movement between the first arc block 210 and the second arc block 130, that is, they respectively abut against the inner wall of the tunnel and the outer wall of the trolley, which is more convenient.

[0043] In this embodiment, the mounting cavity 310 forms a first limiting part 410 and a second limiting part 420 at the first arc-shaped block 210 and the second arc-shaped block 130, respectively. The corresponding side of the first arc-shaped block 210 is provided with a first limiting block for cooperating with the first limiting part 410, and the corresponding side of the second arc-shaped block 130 is provided with a second limiting block for cooperating with the second limiting part 420.

[0044] With the above structure, when the first arc-shaped block 210 and the second arc-shaped block 130 move in opposite directions, the first limiting part 410 can block the first limiting block, thereby preventing the first arc-shaped block 210 from fully extending out of the mounting cavity 310; the second limiting part 420 can block the second limiting block, thereby preventing the second arc-shaped block 130 from fully extending out of the mounting cavity 310.

[0045] In this embodiment, the mounting cavity 310 has positioning grooves 380 formed at both ends of the first arc-shaped block 210 and the second arc-shaped block 130. The first arc-shaped block 210 has a first positioning block 530 that matches the positioning groove 380 at both ends, and the second arc-shaped block 130 has a second positioning block 630 that matches the positioning groove 380 at both ends.

[0046] With the above structure, when the first arc block 210 and the second arc block 130 move towards or away from each other, the first positioning block 530 and the second positioning block 630 slide within the positioning groove 380, thus better maintaining the stability of the movement of the first arc block 210 and the second arc block 130.

[0047] In this embodiment, the two ends of the first arc-shaped block 210 and the two ends of the second arc-shaped block 130 are respectively provided with a first mating groove 510 and a second mating groove 610. The first mating groove 510 and the second mating groove 610 are respectively provided with a first filling block 340 and a second filling block 360. The first filling block 340 is used to extend out of the first mating groove 510 when the first arc-shaped block 210 extends out of the outer arc side of the annular mounting plate 110, and the end face of the extension is flush with the corresponding side of the annular mounting plate 110. The second filling block 360 is used to extend out of the second mating groove 610 when the second arc-shaped block 130 extends out of the inner arc side of the annular mounting plate 110, and the end face of the extension is flush with the corresponding side of the annular mounting plate 110.

[0048] With the above structure, when the first arc-shaped block 210 extends out of the outer arc side of the annular mounting plate 110, the first filling blocks 340 at both ends of the first arc-shaped block 210 extend out of the corresponding first mating grooves 510, and the end face of the first filling block 340 extending out of the corresponding first mating groove 510 is flush with the corresponding side of the annular mounting plate 110. Similarly, the end face of the second filling block 360 extending out of the second mating groove 610 is flush with the corresponding side of the annular mounting plate 110. Therefore, the gap between adjacent plug plate assemblies 100 is reduced to form a better seal, thereby better preventing the seepage of cement slurry.

[0049] In this embodiment, the sidewalls at both ends of the outer arc side of the annular mounting plate 110 are provided with a first wedge-shaped surface 430, and the first filling block 340 is provided with a second wedge-shaped surface 810 that cooperates with the first wedge-shaped surface 430; the sidewalls at both ends of the inner arc side of the annular mounting plate 110 are provided with a third wedge-shaped surface 440, and the second filling block 360 is provided with a fourth wedge-shaped surface 910 that cooperates with the third wedge-shaped surface 440.

[0050] With the above structure, when the first filling block 340 extends out of the first mating groove 510, the second wedge surface and the first wedge surface 430 cooperate with each other, thus preferably forming a seal on the outer arc side of the plug plate assembly 100; and when the second filling block 360 extends out of the second mating groove 610, the fourth wedge surface and the third wedge surface 440 cooperate, thus preferably forming a seal on the inner arc side of the plug plate assembly 100.

[0051] In this embodiment, a first sliding hole 520 is provided at the first mating groove 510, and a first sliding rod 820 that slides within the first sliding hole 520 is provided on the side wall of the first filling block 340. A first compression spring 350 is provided at the first mating groove 510, sleeved on the outer wall of the first sliding rod 820, for allowing the first filling block 340 to extend out of the first mating groove 510. A second sliding hole 620 is provided at the second mating groove 610, and a second sliding rod 920 that slides within the second sliding hole 620 is provided on the side wall of the second filling block 360. A second compression spring 370 is provided at the second mating groove 610, sleeved on the outer wall of the second sliding rod 920, for allowing the second filling block 360 to extend out of the second mating groove 610.

[0052] With the above structure, when the first arc-shaped block 210 and the second arc-shaped block 130 extend out of the mounting cavity 310, the first compression spring 350 and the second compression spring 370 respectively press the first filling block 340 and the second filling block 360 against the side wall of the corresponding annular mounting plate 110, which is more convenient.

[0053] In this embodiment, the annular mounting plate 110 has a protrusion 220 on one side of the annulus and a groove 140 on the other side of the annulus. The protrusion 220 and the groove 140 of adjacent annular mounting plates 110 are connected and engaged.

[0054] With the above structure, the installation of adjacent annular mounting plates 110, that is, the installation of adjacent end cap assembly 100, can be achieved more effectively.

[0055] Example 2

[0056] This embodiment provides a construction method for a polymer end cap plate for tunnel lining, which is achieved by using the polymer end cap plate for tunnel lining described in Embodiment 1.

[0057] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0058] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A polymer end cap for tunnel lining, characterized in that: The device includes multiple end-to-end plug plate assemblies (100), which are connected end-to-end to form a semi-circular sealing plate (1010). The sealing plate is used to be installed between the inner wall of the tunnel and the outer wall of the trolley to form a seal. The end-to-end plug plate assembly (100) includes an annular mounting plate (110). An installation cavity (310) is formed on one side of the annular mounting plate (110). A first arc-shaped block (210) and a second arc-shaped block (130) that can move towards or away from each other are provided in the installation cavity (310). The first arc-shaped block (210) is used to extend out of the outer arc side of the annular mounting plate (110) and to abut against the inner wall of the tunnel. The second arc-shaped block (130) is used to extend out of the inner arc side of the annular mounting plate (110) and to abut against the outer wall of the trolley. The annular mounting plate (110) has a protrusion (220) on one side of the ring and a groove (140) on the other side of the ring. The protrusion (220) and groove (140) of adjacent annular mounting plates (110) are connected and fitted together. The first arc-shaped block (210) and the second arc-shaped block (130) are respectively provided with a first mating groove (510) and a second mating groove (610). The first mating groove (510) and the second mating groove (610) are respectively provided with a first filling block (340) and a second filling block (360). The first filling block (340) is used to extend out of the first mating groove (510) when the first arc-shaped block (210) extends out of the outer arc side of the annular mounting plate (110) and the end face of the extension is flush with the corresponding side of the annular mounting plate (110). The second filling block (360) is used to extend out of the second mating groove (610) when the second arc-shaped block (130) extends out of the inner arc side of the annular mounting plate (110) and the end face of the extension is flush with the corresponding side of the annular mounting plate (110).

2. The polymer end cap plate for tunnel lining according to claim 1, characterized in that: The mounting cavity (310) has a mounting seat (320) at the bottom wall, a shaft hole at the mounting seat (320), and a positive and negative threaded rod (330) is movably provided at the shaft hole. The two ends of the positive and negative threaded rod (330) are respectively engaged with the first arc block (210) and the second arc block (130). A first bevel gear (390) is coaxially provided in the middle of the positive and negative threaded rod (330). An annular mounting cover (120) for sealing the mounting cavity (310) is provided on one side of the annular mounting plate (110). A through hole is provided at the annular mounting cover (120). A rotating rod is movably provided at the through hole. A second bevel gear (710) for meshing with the first bevel gear (390) is provided at one end of the rotating rod that extends into the mounting cavity (310). A rotating part (150) is provided at the other end of the rotating rod. The rotating part (150) forms a regular hexagonal inner cavity.

3. The polymer end cap plate for tunnel lining according to claim 1, characterized in that: The mounting cavity (310) is located at the first arc-shaped block (210) and the second arc-shaped block (130) respectively to form a first limiting part (410) and a second limiting part (420). The first arc-shaped block (210) has a first limiting block on the corresponding side for cooperating with the first limiting part (410), and the second arc-shaped block (130) has a second limiting block on the corresponding side for cooperating with the second limiting part (420).

4. The polymer end cap plate for tunnel lining according to claim 1, characterized in that: The mounting cavity (310) is located at both ends of the first arc-shaped block (210) and the second arc-shaped block (130), and positioning grooves (380) are formed at both ends of the first arc-shaped block (210). A first positioning block (530) is provided at both ends of the positioning groove (380), and a second positioning block (630) is provided at both ends of the second arc-shaped block (130).

5. The polymer end cap plate for tunnel lining according to claim 1, characterized in that: The annular mounting plate (110) has a first wedge-shaped surface (430) at both ends of the outer arc side of the sidewall, and the first filling block (340) has a second wedge-shaped surface (810) that cooperates with the first wedge-shaped surface (430); the annular mounting plate (110) has a third wedge-shaped surface (440) at both ends of the inner arc side of the sidewall, and the second filling block (360) has a fourth wedge-shaped surface (910) that cooperates with the third wedge-shaped surface (440).

6. The polymer end cap plate for tunnel lining according to claim 1, characterized in that: A first sliding hole (520) is provided at the first mating groove (510), and a first sliding rod (820) is provided on the side wall of the first filling block (340) and slides within the first sliding hole (520). A first compression spring (350) is provided at the first mating groove (510) and sleeved on the outer wall of the first sliding rod (820) for allowing the first filling block (340) to extend out of the first mating groove (510). A second sliding hole (620) is provided at the second mating groove (610), and a second sliding rod (920) is provided on the side wall of the second filling block (360) and slides within the second sliding hole (620). A second compression spring (370) is provided at the second mating groove (610) and sleeved on the outer wall of the second sliding rod (920) for allowing the second filling block (360) to extend out of the second mating groove (610).

7. A method for constructing polymer end caps for tunnel lining, characterized in that: This is achieved by using the polymer plug plate for tunnel lining as described in any one of claims 1-6.

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