Connecting channel secondary lining anti-disengaging grouting device with mold

Abstract

The utility model relates to the technical field of connection channel secondary lining construction, in particular to a connection channel secondary lining anti-disengaging formwork grouting device which comprises a connection channel, a primary support is arranged at the top of the connection channel, a waterproof plate is arranged on the lower surface of the primary support, solidified secondary lining concrete is arranged on the lower surface of the waterproof plate, and the secondary lining concrete is arranged on the lower surface of the waterproof plate. A lining trolley is slidably arranged at the bottom of the connection channel, a guide rail is fixedly connected to the top of the lining trolley, a sliding block is slidably connected to the surface of the guide rail, and a lining bottom plate is fixedly connected to the surface of the sliding block in a sliding mode. According to the utility model, the lining bottom plate and the lining side plate slide on the non-solidified secondary lining concrete through extrusion of the non-solidified secondary lining concrete, so that the compactness of the non-solidified secondary lining concrete injected between the waterproof plate and the lining bottom plate is guaranteed, the generation of cavities is avoided, the later void operation is prevented, the repair cost is avoided, and the construction efficiency is improved. And the construction period is shortened.

Description

Technical Field

[0001] This utility model relates to the field of secondary lining construction technology for connecting passages, specifically a grouting device for preventing voids in the secondary lining of connecting passages. Background Technology

[0002] As connecting passages between tunnels, connecting passages must withstand various complex loads during tunnel operation, including pressure from the surrounding soil, groundwater pressure, and dynamic loads generated by trains running inside the tunnel. Although the initial support can withstand these loads to a certain extent, its bearing capacity may gradually decrease over time and with environmental changes. The secondary lining construction technology for connecting passages refers to the structural construction technology of pouring one or more layers of concrete on the inner wall of the connecting passage after the initial support is completed, in order to improve the overall stability and durability of the connecting passage.

[0003] During the grouting process of the connecting passage, the judgment of the density of the arch concrete mainly relies on opening windows for inspection and on the construction experience of workers to judge the density of the arch. Manual inspection is prone to judgment errors and cannot avoid reducing defects such as voids and non-density in the arch during the secondary lining construction. Later, it is necessary to repair defects such as voids and non-density behind the arch, which will increase costs and extend the construction period. Utility Model Content

[0004] The purpose of this utility model is to provide a grouting device for preventing voids in the secondary lining of a connecting passage, in order to solve the problems mentioned in the background art, such as the easy error in judgment caused by manual inspection, the inability to avoid or reduce defects such as voids and looseness in the arch of the secondary lining construction, the need to repair the voids and looseness behind the arch in the later stage, and the resulting increase in cost and extension of construction period.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grouting device for preventing voids in the secondary lining of a connecting passage, comprising a connecting passage, an initial support being provided at the top of the connecting passage, a waterproof membrane being provided on the lower surface of the initial support, and solidified secondary lining concrete being provided on the lower surface of the waterproof membrane; a lining trolley being slidably provided at the bottom of the connecting passage, a guide rail being fixedly connected to the top of the lining trolley, a slider being slidably connected to the surface of the guide rail, a lining base plate being slidably connected and fixedly connected to the surface of the slider, and a lining base plate being fixedly connected to the surface of the lining base plate. The lining trolley has lining side plates, a support block is fixedly connected to the top of the lining trolley, a limit block is fixedly connected to the top of the lining trolley, uncured secondary lining concrete is injected into one side of the solidified secondary lining concrete, a limit rope is fixedly connected to the surface of the lining bottom plate, a fixed pipe is fixedly connected to one end of the lining bottom plate, a grouting device is provided on one side of the lining trolley, a fixed pipe is provided on the output shaft of the grouting device, a pressure gauge is provided on the surface of the fixed pipe, a hose is fixedly installed on the surface of the fixed pipe, and a grouting head is fixedly installed at the end of the hose away from the fixed pipe.

[0006] Preferably, one side of the lining base plate slides on the surface of the guide rail via a slider, and the other side of the lining base plate is slidably connected to the lower surface of the solidified secondary lining concrete.

[0007] Preferably, the support block and the slider are misaligned, and the support block supports the lining base plate on the lining trolley.

[0008] Preferably, the lining side plate slides on the guide rail via the lining bottom plate, the top of the lining side plate slides on the surface of the waterproof membrane, and the overall cross-section of the lining bottom plate and the lining side plate is "L" shaped.

[0009] Preferably, the top of the limiting block and the lining bottom plate are on the same horizontal plane, and the limiting block restricts the lining bottom plate and lining side plate from continuing to slide towards the limiting block on the lining trolley.

[0010] Preferably, the limiting rope is fixedly connected to a point on the lining base plate away from the lining side plate, and the lining trolley drives the lining base plate to move on the connecting channel. The limiting rope can restrict the lining base plate from sliding along the connecting channel.

[0011] Preferably, the fixed pipe outputs the uncured secondary lining concrete inside the grouting equipment to the grouting head through a hose. The grouting head is fixedly installed on the lining side plate, and the grouting head outputs the uncured secondary lining concrete from the lining side plate to between the waterproof board and the lining bottom plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This grouting device uses a fixed pipe to output the uncured secondary lining concrete inside the grouting equipment to the grouting head through a hose. The grouting head then outputs the uncured secondary lining concrete onto the lining side plate, between the waterproof membrane and the lining bottom plate. Since the end of the lining side plate away from the uncured secondary lining concrete is already cured secondary lining concrete, the uncured secondary lining concrete can only continuously compress the lining side plate. Because the lining bottom plate slides on the guide rail via a slider, the uncured secondary lining concrete, through compression, causes the lining bottom plate and lining side plate to slide on the uncured secondary lining concrete, ensuring the compactness of the uncured secondary lining concrete injected between the waterproof membrane and the lining bottom plate, avoiding the formation of voids, preventing subsequent void removal work, avoiding repair costs, and shortening the construction period. Attached Figure Description

[0014] Figure 1 This is a cross-sectional schematic diagram of the construction structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0016] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;

[0017] Figure 4 This utility model Figure 1 A magnified structural diagram at point C.

[0018] In the diagram: 1. Initial support; 2. Waterproof membrane; 3. Solidified secondary lining concrete; 4. Lining trolley; 5. Guide rail; 6. Sliding block; 7. Lining bottom plate; 8. Lining side plate; 9. Support block; 10. Limiting block; 11. Unsolidified secondary lining concrete; 12. Limiting rope; 13. Grouting equipment; 14. Fixing pipe; 15. Pressure gauge; 16. Hoses; 17. Grouting head. Detailed Implementation

[0019] Please see Figure 1-4 One embodiment provided by this utility model:

[0020] A grouting device for preventing voids in the secondary lining of a connecting passage includes a connecting passage, an initial support 1 at the top of the connecting passage, a waterproof membrane 2 on the lower surface of the initial support 1, and solidified secondary lining concrete 3 on the lower surface of the waterproof membrane 2. A lining trolley 4 is slidably mounted at the bottom of the connecting passage, a guide rail 5 is fixedly connected to the top of the lining trolley 4, a slider 6 is slidably connected to the surface of the guide rail 5, a lining base plate 7 is slidably connected to and fixedly connected to the surface of the slider 6, lining side plates 8 are fixedly connected to the surface of the lining base plate 7, a support block 9 is fixedly connected to the top of the lining trolley 4, a limit block 10 is fixedly connected to the top of the lining trolley 4, and unsolidified secondary lining concrete 11 is injected into one side of the solidified secondary lining concrete 3. A limiting rope 12 is fixedly connected to the surface of the lining base plate 7. A fixed pipe 14 is fixedly connected to one end of the lining base plate 7. A grouting device 13 is set on one side of the lining trolley 4. A fixed pipe 14 is set on the output shaft of the grouting device 13. A pressure gauge 15 is set on the surface of the fixed pipe 14. A hose 16 is fixedly installed on the surface of the fixed pipe 14. A grouting head 17 is fixedly installed at the end of the hose 16 away from the fixed pipe 14. The grouting device injects uncured secondary lining concrete 11, thereby causing the uncured secondary lining concrete 11 to push the lining base plate 7 and the lining side plate 8 to move on one side of the cured secondary lining concrete 3. This avoids the formation of voids between the uncured secondary lining concrete 11 and the waterproof membrane 2 during the injection process, and prevents the subsequent removal of voids.

[0021] Furthermore, one side of the lining base plate 7 slides on the surface of the guide rail 5 via the slider 6, and the other side of the lining base plate 7 is slidably connected to the lower surface of the solidified secondary lining concrete 3. The top end of the lining base plate 7 is always in contact with the grouting equipment 13 to prevent the unsolidified secondary lining concrete 11 from leaking out.

[0022] Furthermore, the support block 9 and the slider 6 are misaligned with each other. The support block 9 supports the lining base plate 7 on the lining trolley 4, ensuring the stability of the lining base plate 7 during the sliding process.

[0023] Furthermore, the lining side plate 8 slides on the guide rail 5 via the lining bottom plate 7, and the top of the lining side plate 8 slides on the surface of the waterproof membrane 2. The overall cross-section of the lining bottom plate 7 and the lining side plate 8 is "L" shaped. The uncured secondary lining concrete 11 is located between the lining bottom plate 7, the lining side plate 8, the waterproof membrane 2, and the cured secondary lining concrete 3. The lining bottom plate 7, the lining side plate 8, and the top arc shape of the connecting passage are similar.

[0024] Furthermore, the top of the limiting block 10 and the lining bottom plate 7 are on the same horizontal plane. The limiting block 10 restricts the lining bottom plate 7 and the lining side plate 8 from continuing to slide towards the limiting block 10 on the lining trolley 4. At this time, the uncured secondary lining concrete 11 cannot push the lining bottom plate 7 and the lining side plate 8 to move. It is necessary to wait for the uncured secondary lining concrete 11 to become the cured secondary lining concrete 3 before moving the lining trolley 4, and then continue to grout the uncured secondary lining concrete 11 backward.

[0025] Furthermore, the limiting rope 12 is fixedly connected to a point on the lining base plate 7 away from the lining side plate 8. The lining trolley 4 drives the lining base plate 7 to move on the connecting channel. The limiting rope 12 can restrict the lining base plate 7 from sliding along the connecting channel. The limiting rope 12 can be tied to the bottom of the connecting channel so that the limiting rope 12 restricts the sliding of the lining base plate 7, thereby restricting the movement of the lining side plate 8, which facilitates the injection of a new round of uncured secondary lining concrete 11 on the lining base plate 7 and the lining side plate 8.

[0026] Furthermore, the fixed pipe 14 outputs the uncured secondary lining concrete 11 inside the grouting equipment 13 to the grouting head 17 through the hose 16. The grouting head 17 is fixedly installed on the lining side plate 8. The grouting head 17 outputs the uncured secondary lining concrete 11 on the lining side plate 8 between the waterproof board 2 and the lining bottom plate 7. Since the end of the lining side plate 8 away from the uncured secondary lining concrete 11 is the cured secondary lining concrete 3, the uncured secondary lining concrete 11 can only continuously squeeze the lining side plate 8, causing the lining side plate 8 to slide away from the end of the cured secondary lining concrete 3, thereby ensuring the compactness of the injected uncured secondary lining concrete 11 and avoiding the generation of voids.

[0027] Working principle: The fixed pipe 14 outputs the uncured secondary lining concrete 11 inside the grouting equipment 13 through the hose 16 to the grouting head 17. The grouting head 17 outputs the uncured secondary lining concrete 11 onto the lining side plate 8, between the waterproofing liner 2 and the lining bottom plate 7. Since the end of the lining side plate 8 away from the uncured secondary lining concrete 11 is the already cured secondary lining concrete 3, the uncured secondary lining concrete 11 can only continuously squeeze the lining side plate 8. Because the lining bottom plate 7 slides on the guide rail 5 through the slider 6, the uncured secondary lining concrete... The soil 11 causes the lining base plate 7 and lining side plate 8 to slide on the uncured secondary lining concrete 11 through compression, ensuring the compactness of the uncured secondary lining concrete 11 between the injected waterproofing board 2 and the lining base plate 7, and avoiding the generation of voids. When the lining base plate 7 slides to contact the limiting block 10, the value of the pressure gauge 15 continues to rise. At this time, the grouting head 17 stops injecting the uncured secondary lining concrete 11 and waits for the uncured secondary lining concrete 11 to become the cured secondary lining concrete 3 before continuing the operation backward in the connecting passage.

Claims

1. A grouting device for preventing voids in the secondary lining of a connecting passage, comprising a connecting passage, characterized in that: The top of the connecting passage is provided with initial support, the lower surface of which is provided with a waterproof membrane, and the lower surface of which is provided with solidified secondary lining concrete. A lining trolley is slidably mounted at the bottom of the connecting passage. A guide rail is fixedly connected to the top of the lining trolley, a slider is slidably connected to the surface of the guide rail, a lining base plate is slidably connected to the surface of the slider, and lining side plates are fixedly connected to the surface of the lining base plate. A support block is fixedly connected to the top of the lining trolley, and a limit block is fixedly connected to the top of the lining trolley. Unsolidified secondary lining concrete is injected into one side of the solidified secondary lining concrete. A limit rope is fixedly connected to the surface of the lining base plate, and a fixed pipe is fixedly connected to one end of the lining base plate. A grouting device is provided on one side of the lining trolley, and a fixed pipe is provided on the output shaft of the grouting device. A pressure gauge is provided on the surface of the fixed pipe, and a hose is fixedly installed on the surface of the fixed pipe. A grouting head is fixedly installed at the end of the hose away from the fixed pipe.

2. The anti-vacuum grouting device for secondary lining of a connecting passage according to claim 1, characterized in that: One side of the lining base plate slides on the surface of the guide rail via a slider, while the other side of the lining base plate is slidably connected to the lower surface of the solidified secondary lining concrete.

3. The anti-void grouting device for secondary lining of a connecting passage according to claim 1, characterized in that: The support block and the slider are misaligned with each other, and the support block supports the lining base plate on the lining trolley.

4. The anti-vacuum grouting device for secondary lining of a connecting passage according to claim 2, characterized in that: The lining side plate slides on the guide rail via the lining bottom plate, and the top of the lining side plate slides on the surface of the waterproof plate. The overall cross-section of the lining bottom plate and the lining side plate is "L" shaped.

5. The anti-void grouting device for the secondary lining of a connecting passage according to claim 1, characterized in that: The top of the limiting block and the lining bottom plate are on the same horizontal plane. The limiting block restricts the lining bottom plate and lining side plate from sliding further toward the limiting block on the lining trolley.

6. The anti-vacuum grouting device for secondary lining of a connecting passage according to claim 1, characterized in that: The limiting rope is fixedly connected to a point on the lining base plate away from the lining side plate. The lining trolley drives the lining base plate to move on the connecting channel. The limiting rope can restrict the lining base plate from sliding along the connecting channel.

7. The anti-void grouting device for secondary lining of a connecting passage according to claim 1, characterized in that: The fixed pipe outputs the uncured secondary lining concrete inside the grouting equipment to the grouting head through a hose. The grouting head is fixedly installed on the lining side plate. The grouting head will output the uncured secondary lining concrete from the lining side plate to the space between the waterproof board and the lining bottom plate.

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