Collection device for leaked concrete slurry from tunnel secondary lining end baffle

Abstract

This invention provides a collection device for leaked concrete slurry from the end baffle of a tunnel secondary lining, belonging to the field of tunnel secondary lining construction technology. It includes a guide channel located at the lower edge of the end baffle near the tunnel arch, and guide pipes connected to both ends of the guide channel. The guide channel is arched, with its opening located on the upper side of the channel and facing the end baffle. Both ends of the guide channel are funnel-shaped, and each end has a port for connecting to the guide pipe. The guide pipe is used to divert the concrete collected in the guide channel to the ground. The guide channel of this invention is located at the lower edge of the end baffle near the tunnel arch, below the high-risk area for concrete slurry leakage. It can immediately catch the falling concrete slurry and divert it to the ground for treatment through the guide pipe, preventing the leaked concrete slurry from contaminating the tunnel trolley or the tunnel working face.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel secondary lining construction technology, specifically relating to a collection device for leaked concrete slurry from the end baffle of a tunnel secondary lining. Background Technology

[0002] In tunnel engineering, secondary lining refers to a cast-in-place concrete or reinforced concrete permanent lining structure constructed inside the initial support structure, which together with the initial support forms a composite lining system. Secondary lining is constructed section by section using a formwork trolley. After completing the waterproofing layer and embedded steel reinforcement of a specific lining section, the trolley moves to the designated position and positions itself. Finally, end baffles are installed to seal the end face of the lining section.

[0003] After the secondary lining concrete is poured, the voids in the arch of the secondary lining need to be backfilled using a formwork-injection grouting process. In this process, due to the high pumping pressure and the high fluidity and slight expansion characteristics of the backfill grout, it easily seeps out from the joint between the end baffle and the waterproofing layer at the arch. If the leaked concrete grout is not collected and treated effectively and promptly, it will inevitably contaminate the formwork trolley below and the tunnel working surface (ground). Utility Model Content

[0004] This utility model addresses the technical problem of collecting and treating concrete slurry seeping from the end baffle near the tunnel arch in existing technology, and provides a collection device for leaked concrete slurry from the end baffle of the tunnel secondary lining. The technical solution adopted by this utility model is as follows: A collection device for leaked concrete slurry from the end baffle of a tunnel secondary lining includes a guide channel located at the lower edge of the end baffle near the tunnel arch and guide pipes connected to both ends of the guide channel. The guide channel is arched, with its opening located on the upper side of the guide channel and facing the end baffle. Both ends of the guide channel are funnel-shaped, and both ends of the guide channel are provided with openings for connecting the guide pipes. The guide pipes are used to divert the concrete slurry collected in the guide channel to the ground.

[0005] Furthermore, a splash guard is provided on the side of the guide channel away from the end baffle.

[0006] Furthermore, the guide channel includes a first guide channel disposed at the lower edge of the end baffle near the tunnel arch, and a second guide channel respectively connected to both ends of the first guide channel; the end of the second guide channel away from the first guide channel is provided with a pipe opening for connecting to the guide pipe.

[0007] Furthermore, the second guide channel is characterized by having a connecting cylinder at its upper end; the two ends of the first guide channel are cylindrical interfaces, which are used to insert into the connecting cylinder.

[0008] Furthermore, the second guide channel is provided with a plurality of hooks at the end away from the pipe opening, and both ends of the first guide channel are provided with clamps for the second guide channel to be inserted into and engaged with the hooks.

[0009] Furthermore, the connector of the guide tube and the tube opening adopt a quick-connect structure.

[0010] Furthermore, the guide channel is provided with several hangers for connecting to the end baffle.

[0011] Furthermore, the bracket is provided with mounting holes.

[0012] Furthermore, the guide channel has multiple mounting holes on its side along its length.

[0013] Furthermore, the mounting hole is used to connect with the end baffle after inserting a screw.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The guide channel of this utility model is set at the lower edge of the end baffle near the tunnel arch, located below the high-incidence area of ​​concrete slurry leakage of the end baffle. It can catch the falling concrete slurry in time and guide it to the ground for treatment through the guide pipe, so as to avoid the leakage of concrete slurry from contaminating the trolley or tunnel working face.

[0015] The present invention also has a splash guard on the side of the diversion channel away from the end baffle, which can block concrete slurry that may splash out from the joint of the end baffle near the tunnel arch. The blocked concrete slurry automatically flows into the diversion channel.

[0016] The diversion channel of this utility model can also adopt a segmented structure, each segment being arched, including a first diversion channel in the middle and a second diversion channel connected to both ends of the first diversion channel. This not only ensures the collection and diversion of leaked concrete slurry, but also facilitates on-site installation due to the reduced weight. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Figure 1 One of the structural schematic diagrams of Embodiment 1 of this utility model; Figure 2 : A second structural schematic diagram of Embodiment 1 of this utility model; Figure 3 One of the installation diagrams of Embodiment 1 of this utility model; Figure 4 : Second installation diagram of Embodiment 1 of this utility model; Figure 5: A schematic diagram of the structure of Embodiment 2 of this utility model; Figure 6 : A schematic diagram of the structure of Embodiment 3 of this utility model; Figure 7 : A schematic diagram of the structure of embodiment 4 of this utility model; Figure 8 : A cross-sectional view of the connector in Embodiment 5 of this utility model; Wherein: 1-Guide channel, 11-Pipe opening, 111-Connecting channel, 12-Hanger, 13-Mounting hole, 14-First guide channel, 141-Clamp, 15-Second guide channel, 151-Hook, 152-Connecting cylinder, 16-Splash guard, 2-Guide pipe, 21-Connector, 211-Pull lug, 212-Limiting hole, 213-Pull ring, 214-Sealing gasket, 215-Interface, 3-Trolley, 4-End baffle. Detailed Implementation

[0019] To better understand this utility model, the content of this utility model is further explained clearly below with reference to the embodiments and accompanying drawings. However, the protection scope of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0020] Example 1: See Figures 1-4 The purpose of this embodiment is to provide a collection device for leaked concrete slurry from the end baffle of the secondary lining of a tunnel, including a guide channel 1 and guide pipes 2 connected to both ends of the guide channel 1. The guide channel 1 is used to be set at the lower edge of the end baffle 4 near the tunnel arch.

[0021] like Figure 1 , Figure 2 As shown, the guide channel 1 is arched, with the opening extending along the length direction and located on the upper side of the guide channel 1, facing the end baffle 4; both ends of the guide channel 1 are funnel-shaped, and both ends are provided with a pipe opening 11 for connecting the guide pipe 2. Figure 1 -A and Figure 2 -A are schematic diagrams showing the connection between the guide pipe 2 and the guide groove 1. Figure 1 -B and Figure 2 -B are partial cross-sectional views of the guide channel 1.

[0022] like Figure 3 , Figure 4As shown, the diversion channel 1 is located at the lower edge of the end baffle 4 at the tunnel arch, and the diversion pipe 2 hangs down to the ground. When concrete slurry seeps out near the arch of the end baffle 4, the seeping concrete slurry will be collected by the diversion channel 1 and eventually flow to the ground along the diversion pipe 2; the lower end of the diversion pipe 2 can be placed in a waste bin so that the seeping concrete slurry is collected by the waste bin, avoiding pollution of the trolley 3 or the ground.

[0023] exist Figure 1 , Figure 3 In this embodiment, the guide channel 1 is provided with a plurality of brackets 12, and the brackets 12 are provided with mounting holes 13 for connecting with the end baffle 4. The brackets 12 and the guide channel 1 can be fixedly connected, and the guide channel 1 can be fixed to the lower edge of the end baffle 4 by using screws in conjunction with the mounting holes 13; the brackets 12 and the guide channel 1 can also be movably connected, and in use, the brackets 12 are first fixed to the end baffle 4 by using screws in conjunction with the mounting holes 13, and then the guide channel 1 is placed into the brackets 12.

[0024] exist Figure 2 , Figure 3 In this embodiment, the guide channel 1 has multiple mounting holes 13 on its side along its length direction. The guide channel 1 can be fixed to the lower edge of the end baffle 4 by using screws to engage with the mounting holes 13.

[0025] In another possible implementation, the guide channel 1 can also be set at the lower edge of the end baffle 4 by fixing it to the trolley 3.

[0026] In another possible implementation, the guide channel 1 is fixed at the lower edge of the end baffle 4 by welding.

[0027] Example 2: See Figure 5 Compared with Example 1, the collection device for leaked concrete slurry at the end baffle of the secondary lining of the tunnel provided in this embodiment has the following main improvements: the diversion channel 1 adopts a segmented structure.

[0028] Specifically, such as Figure 5 As shown, the flow channel 1 includes a first flow channel 14 for being installed at the lower edge of the end baffle 4 at the tunnel arch and a second flow channel 15 that is connected to both ends of the first flow channel 14. The pipe opening 11 is provided at one end of the second flow channel 15 through a funnel-shaped structure. Both the first flow channel 14 and the second flow channel 15 are arched, and the openings are both located on the upper side. Figure 5 -A is a schematic diagram showing the connection between the guide pipe 2 and the second guide groove 15. Figure 5 -B and Figure 5 -C is a schematic diagram of the structure at both ends of the first guide channel 14.

[0029] The outer sides of both ends of the first guide channel 14 are provided with clamps 141, and the outer side of the second guide channel 15 away from the pipe opening 11 is provided with several hooks 151. The end of the second guide channel 15 can be inserted into the clamps 141 and the hooks 151 can be hung on the clamps 141 to realize the docking of the second guide channel 15 and the first guide channel 14.

[0030] In this embodiment, the first guide channel 14 is installed at the lower edge of the end baffle 4 in the same way as the guide channel 1 in embodiment 1, and will not be described again.

[0031] The guide channel 1 in this embodiment adopts a segmented structure. Compared with embodiment 1, the weight of each segment is reduced, making it easier to install on site.

[0032] Example 3: See Figure 6 Compared with Example 1, the collection device for leaked concrete slurry at the end baffle of the secondary lining of the tunnel provided in this embodiment has the following main improvements: the diversion channel 1 adopts a segmented structure.

[0033] Specifically, such as Figure 6 As shown, the flow guide 1 includes a first flow guide 14 located at the lower edge of the end baffle 4 at the tunnel arch and a second flow guide 15 connected to both ends of the first flow guide 14. An opening 11 is located at one end of the second flow guide 15 via a funnel-shaped structure. Both the first and second flow guides are arched, with their openings located on the upper side. Both ends of the first flow guide 14 are cylindrical. A connecting cylinder 152 is provided at the upper end of the second flow guide 15, which can fit onto the end of the first flow guide 14 to achieve connection between the second flow guide 15 and the first flow guide 14.

[0034] In this embodiment, the first guide channel 14 is installed at the lower edge of the end baffle 4 in the same way as the guide channel 1 in embodiment 1, and will not be described again.

[0035] The guide channel 1 in this embodiment adopts a segmented structure. Compared with embodiment 1, the weight of each segment is reduced, making it easier to install on site.

[0036] Example 4: See Figure 7 Compared with Embodiment 1, Embodiment 2 or Embodiment 3, the collection device for leaked concrete slurry from the end baffle of the tunnel secondary lining provided in this embodiment has the following main improvements: a splash guard 16 is also provided on the side of the diversion channel 1 away from the end baffle 4.

[0037] Corresponding to Embodiment 1, the splash guard 16 is disposed on the side near the dome of the guide channel 1 and is connected to the edge of the guide channel 1 opening away from the end baffle 4; corresponding to Embodiment 2, the splash guard 16 is disposed on the side of the first guide channel 14 and is connected to the edge of the first guide channel 14 opening away from the end baffle 4.

[0038] By installing splash guards 16, concrete slurry that may splash out near the tunnel arch can be effectively collected.

[0039] Example 5: See Figure 8 Compared with Embodiment 1, Embodiment 2, Embodiment 3 or Embodiment 4, the collection device for leaked concrete slurry at the end baffle of the tunnel secondary lining provided in this embodiment has the following main improvements: the joint 21 of the guide pipe 2 and the pipe opening 11 adopt a quick docking structure.

[0040] Specifically, such as Figure 1 , Figure 2 and Figure 8 As shown, a connecting groove 111 is provided around the periphery of the pipe opening 11, and the bottom of the connecting groove 111 is C-shaped. A connector 21 is provided at the end of the guide pipe 2 to mate with the pipe opening 11. The inner diameter of the interface 215 of the connector 21 is slightly larger than the outer diameter of the pipe opening 11, and a sealing gasket 214 for contacting the pipe opening 11 is provided inside the interface 215. Pull ears 211 are provided on opposite radial sides of the interface 215. One end of the pull ear 211 is hinged to the pipe wall of the interface 215, and the other end is provided with a pull ring 213. An eccentric connector is provided at the end of the pull ear 211 near the hinge axis. When the pull ear 211 is closed towards the connector 21, the connector enters the interface 215 and can engage with the connecting groove 111, thus connecting the connector 21 to the pipe opening 11. When the pull ring 213 is used to pull up the pull ear 211, the connector moves out of the interface 215, and the pipe opening 11 can disengage from the connector 21. Meanwhile, a limiting hole 212 is also provided on the pipe wall of the connector 21. When a pin, cotter pin or other component is inserted into the limiting hole 212, the position of the pull lug 211 can be restricted to prevent the pull lug 211 from swinging.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A device for collecting leaked concrete slurry from the end baffle of a tunnel secondary lining, characterized in that, It includes a flow guide channel located at the lower edge of the end baffle near the tunnel arch and flow guide pipes connected to both ends of the flow guide channel; The guide channel is arched, with the opening located on the upper side of the guide channel and facing the end baffle; both ends of the guide channel are funnel-shaped, and both ends of the guide channel are provided with pipe openings for connecting the guide pipe. The guide pipe is used to divert the concrete slurry collected in the guide channel to the ground.

2. The collection device for leaked concrete slurry from the end baffle of the secondary tunnel lining according to claim 1, characterized in that, A splash guard is also provided on the side of the guide channel away from the end baffle.

3. The collection device for leaked concrete slurry from the end baffle of the secondary tunnel lining according to claim 1, characterized in that, The flow guide channel includes a first flow guide channel located at the lower edge of the end baffle near the tunnel arch, and a second flow guide channel that is connected to both ends of the first flow guide channel; the second flow guide channel has an opening at one end away from the first flow guide channel for connecting to the flow guide pipe.

4. The collection device for leaked concrete slurry from the end baffle of the secondary tunnel lining according to claim 3, characterized in that, The upper end of the second guide channel is provided with a connecting cylinder; both ends of the first guide channel are cylindrical interfaces, which are used to insert into the connecting cylinder.

5. The collection device for leaked concrete slurry from the end baffle of the secondary tunnel lining according to claim 3, characterized in that, The second guide channel is provided with several hooks at the end away from the pipe opening, and both ends of the first guide channel are provided with clamps for the second guide channel to be inserted and hooked with the hooks.

6. The collection device for leaked concrete slurry from the end baffle of the secondary tunnel lining according to claim 1, characterized in that, The connector of the guide tube and the tube opening adopt a quick-connect structure.

7. The collection device for leaked concrete slurry from the end baffle of the secondary tunnel lining according to claim 1, characterized in that, The guide channel is provided with several brackets for connecting to the end baffle.

8. The collection device for leaked concrete slurry from the end baffle of the secondary tunnel lining according to claim 7, characterized in that, The bracket is provided with mounting holes.

9. The collection device for leaked concrete slurry from the end baffle of the secondary tunnel lining according to claim 1, characterized in that, The guide channel has multiple mounting holes on its side along its length.

10. The collection device for leaked concrete slurry from the end baffle of the tunnel secondary lining according to claim 8 or 9, characterized in that, The mounting hole is used to insert a screw and connect to the end baffle.

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