CN221002792U - Water-blocking embedded part of tunnel grounding device - Google Patents
Water-blocking embedded part of tunnel grounding device Download PDFInfo
- Publication number
- CN221002792U CN221002792U CN202323220663.8U CN202323220663U CN221002792U CN 221002792 U CN221002792 U CN 221002792U CN 202323220663 U CN202323220663 U CN 202323220663U CN 221002792 U CN221002792 U CN 221002792U
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- Prior art keywords
- tunnel
- connecting piece
- water
- grounding device
- blocking
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 230000000903 blocking effect Effects 0.000 claims abstract description 57
- 238000005452 bending Methods 0.000 claims description 33
- 210000001503 joint Anatomy 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 description 10
- 238000003466 welding Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a water-blocking embedded part of a tunnel grounding device, which comprises: the water blocking baffle is pre-buried in the tunnel wall; the connecting piece is embedded in the tunnel wall, penetrates through the water blocking baffle, and the inner end of the connecting piece extends into the tunnel and is connected with the inner grounding device of the tunnel; the outer end of the connecting piece extends out of the tunnel and is connected with an external device of the tunnel. According to the scheme, the water blocking baffle and the connecting piece are pre-buried in the tunnel wall, two ends of the connecting piece are respectively connected with the inner grounding device and the outer grounding device of the tunnel, effective grounding is guaranteed, meanwhile, a water blocking layer is formed around the connecting piece through the water blocking baffle, a water blocking function is achieved, and water accumulation of underground water outside the tunnel after entering the tunnel along the connecting piece is avoided.
Description
Technical Field
The utility model relates to the technical field of tunnel grounding devices, in particular to a water-blocking embedded part of a tunnel grounding device.
Background
In the process of construction and use of the cable tunnel, the inner grounding device of the tunnel and the annular grounding device arranged outside the tunnel are laid on the inner wall of the tunnel, so that a connecting piece of the inner grounding device and the outer grounding device is required to be reserved on the wall of the tunnel. The prior connecting piece of the tunnel grounding device mostly adopts a pre-buried grounding sleeve, the external grounding sleeve of the tunnel is inserted into the tunnel, and waterproof blocking is carried out by adopting a cement blocking mode or a soft silica gel bidirectional blocking mode after construction is completed; because no effective waterproof device exists, the aging of the cement plugging is short, the aging of soft silica gel is short and easy to age, so that underground water outside the tunnel is filled into the tunnel along the grounding flat steel sleeve after the tunnel runs for a long time, long-term ponding in the tunnel is caused, and the safe and stable running of a cable line is influenced.
Disclosure of utility model
The utility model provides a water-blocking embedded part of a tunnel grounding device, which is characterized in that a water-blocking baffle plate and a connecting piece are embedded in the tunnel wall, two ends of the connecting piece are respectively connected with a tunnel grounding device and a tunnel external grounding device, effective grounding is ensured, and a water-blocking layer is formed around the connecting piece through the water-blocking baffle plate, so that a water-blocking function is realized, and water accumulation of underground water outside the tunnel after entering the tunnel along the connecting piece is avoided.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the utility model provides a water-blocking embedded part of a tunnel grounding device, which comprises:
the water blocking baffle is pre-buried in the tunnel wall;
The connecting piece is embedded in the tunnel wall, penetrates through the water blocking baffle, and the inner end of the connecting piece extends into the tunnel and is connected with the inner grounding device of the tunnel; the outer end of the connecting piece extends out of the tunnel and is connected with an external device of the tunnel.
Optionally, the inner end of the connecting piece is welded with the grounding device in the tunnel, and the outer end of the connecting piece is welded with the grounding wire of the grounding device in the tunnel.
Optionally, the inner end and the outer end of the connecting piece are both bending structures.
Optionally, the length of the bending structure at the inner end of the connecting piece is matched with the width of the connecting flat steel of the grounding device in the tunnel, and the length of the bending structure at the outer end of the connecting piece is matched with the width of the flat steel at the end part of the grounding wire of the grounding device outside the tunnel.
Optionally, the bending direction of the bending structure of the inner end of the connecting piece is opposite to the bending direction of the bending structure of the outer end of the connecting piece, and the bending structure of the inner end of the connecting piece and the bending structure of the outer end are respectively abutted with the inner wall and the outer wall of the tunnel.
Optionally, the length dimension of the water blocking baffle is at least three times greater than the width dimension of the connector.
Optionally, a through groove is formed in the middle of the water blocking baffle in a penetrating manner, and the through groove is matched with the connecting piece.
Optionally, the water blocking baffle is welded with the connecting piece.
Optionally, the water blocking baffle includes:
The first plate body and the second plate body are arranged in a butt joint way;
The butt joint face of the first plate body and the second plate body is provided with half grooves, and after the first plate body and the second plate body are in butt joint, the two half grooves form the through groove.
Optionally, the butt joint of the first plate body and the second plate body is welded and connected.
The scheme of the utility model at least comprises the following beneficial effects:
According to the scheme, the water blocking baffle and the connecting piece are embedded in the tunnel wall, two ends of the connecting piece are respectively connected with the inner grounding device and the outer grounding device of the tunnel, effective grounding is guaranteed, meanwhile, a water blocking layer is formed around the connecting piece through the water blocking baffle, a water blocking function is achieved, and water accumulation of underground water outside the tunnel after entering the tunnel along the connecting piece is avoided.
Drawings
Fig. 1 is a schematic diagram of installation and application of a water blocking embedded part of a tunnel grounding device according to an embodiment of the present utility model;
Fig. 2 is a schematic perspective view of a water blocking embedded part of a tunnel grounding device according to an embodiment of the present utility model;
Fig. 3 is a front cross-sectional view of a water blocking embedment of a tunnel grounding device provided by an embodiment of the present utility model;
Fig. 4 is a schematic structural view of a water blocking baffle of a water blocking embedded part of a tunnel grounding device according to an embodiment of the present utility model.
The reference numerals are explained as follows:
1. A water blocking baffle; 101. a through groove; 102. a first plate body; 103. a second plate body; 104. a half groove; 2. a connecting piece; 3. a tunnel-in grounding device; 4. a ground wire; 5. a fixing clip; 6. the tunnel is externally connected with the device.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1-2, the present utility model provides a water blocking embedded part of a tunnel grounding device, comprising:
the water blocking baffle 1 is pre-buried in the tunnel wall;
The connecting piece 2 is embedded in the tunnel wall, the connecting piece 2 penetrates through the water blocking baffle 1, and the inner end of the connecting piece 2 stretches into the tunnel and is connected with the inner grounding device 3; the outer end of the connecting piece 2 extends out of the tunnel and is connected with an external connecting device 6 of the tunnel.
In this embodiment, the length of the connector 2 is determined according to the thickness of the tunnel wall during construction, so that the inner end and the outer end of the connector 2 can leak out of the inner side and the outer side of the tunnel wall respectively; the water blocking baffle 1 and the connecting piece 2 are pre-buried in the tunnel wall, and are respectively connected with the inner end and the outer end of the connecting piece 2 to the inner grounding device 3 and the outer grounding device 6 of the tunnel, so that effective grounding is ensured; a water blocking layer is formed around the connecting piece 2 through the water blocking baffle 1, so that a water blocking function is realized, and water accumulation in the tunnel caused by underground water outside the tunnel entering the tunnel along the connecting piece 2 is avoided.
In the above embodiment of the present utility model, the inner end of the connecting member 2 is welded to the in-tunnel grounding device 3, and the outer end of the connecting member 2 is welded to the ground wire 4 of the in-tunnel grounding device 6.
In the embodiment, the connection between the inner end of the connecting piece 2 and the grounding device 3 in the tunnel and the connection between the outer end of the connecting piece 2 and the grounding wire 4 of the grounding device 6 outside the tunnel are realized in a welding mode, so that the inner end and the outer end of the connecting piece 2 can be reliably connected with the grounding device 3 in the tunnel and the grounding device 6 outside the tunnel for a long time, and effective grounding is ensured;
during concrete construction, the tunnel external connection device 6 is buried in the ground outside the tunnel, and after the outer end of the connecting piece 2 is welded with the grounding wire 4, the fixing clamp 5 is arranged on the outer side of the tunnel, so that the grounding wire 4 vertically downwards enters the ground to be connected with the tunnel external connection device 6, and effective grounding can be ensured.
In an alternative embodiment of the present utility model, as shown in fig. 3, both the inner and outer ends of the connecting member 2 are bent structures.
In this embodiment, the inner end and the outer end of the connecting piece 2 are provided with the bending structures, so that the inner end and the outer end of the connecting piece 2 are convenient to be welded with the grounding wire 4 of the grounding device 3 and the grounding device 6 outside the tunnel, and the firmness of the welded connection is ensured.
In an alternative embodiment of the utility model, the length of the bending structure at the inner end of the connecting piece 2 is adapted to the width of the connecting flat steel of the in-tunnel grounding device 3, and the length of the bending structure at the outer end of the connecting piece 2 is adapted to the width of the flat steel at the end of the grounding wire 4 of the out-of-tunnel grounding device 6.
In this embodiment, by setting the lengths of the inner end and the outer end of the connector 2, the welding connection between the inner end and the outer end of the connector 2 and the ground wire 4 of the in-tunnel grounding device 3 and the out-tunnel grounding device 6 can be further improved, and the long-time effective grounding can be ensured.
In an alternative embodiment of the present utility model, the bending direction of the bending structure at the inner end of the connecting piece 2 is opposite to the bending direction of the bending structure at the outer end of the connecting piece 2, and the bending structure at the inner end and the bending structure at the outer end of the connecting piece 2 are respectively abutted with the inner wall and the outer wall of the tunnel.
In the embodiment, during specific construction, the bending structure at the inner end of the connecting piece 2 adopts an upward bending direction, so that the welding connection between the inner end of the connecting piece 2 and the connecting flat steel of the grounding device 3 in the tunnel is realized conveniently; the bending structure of the outer end of the connecting piece 2 adopts a downward bending direction, so that the welding connection between the inner end of the connecting piece 2 and the flat steel at the end part of the grounding wire 4 of the tunnel external connecting device 6 is realized conveniently; the bending structure of the inner end and the bending structure of the outer end of the connecting piece 2 are respectively abutted against the inner wall and the outer wall of the tunnel, so that the stability of the connecting piece 2 along the wall thickness direction of the tunnel can be enhanced, and water seepage caused by the fact that the connecting piece 2 only causes a gap between the connecting piece 2 and the tunnel wall due to external force is avoided.
In an alternative embodiment of the utility model, the length dimension of the water blocking baffle 1 is at least three times larger than the width dimension of the connector 2.
In this embodiment, in a specific construction, the length dimension of the water blocking baffle 1 is four times the width dimension of the connecting piece 2, so that the water blocking baffle 1 can form an effective water blocking layer around the connecting piece 2, and water accumulation in the tunnel caused by underground water outside the tunnel entering the tunnel along the connecting piece 2 is avoided.
As shown in fig. 3, in an alternative embodiment of the present utility model, a through groove 101 is formed in the middle of the water blocking baffle 1, and the through groove 101 is adapted to the connector 2.
In this embodiment, the through groove 101 is formed in the middle of the water blocking baffle 1, and the connecting piece 2 penetrates through the water blocking baffle 1 through the through groove 101, so that the water blocking baffle 1 forms an effective water blocking layer around the connecting piece 2, and water accumulation in the tunnel caused by underground water outside the tunnel entering the tunnel along the connecting piece 2 is avoided.
In an alternative embodiment of the utility model, the water blocking baffle 1 is welded to the connector 2.
In this embodiment, during construction, the connecting piece 2 runs through the water blocking baffle 1 through the through groove 101, and the edge of the through groove 101 is used for welding connection between the connecting piece 2 and the water blocking baffle 1, so that the stability of the connecting piece 2 can be further ensured, and meanwhile, the gap between the connecting piece 2 and the inner wall of the through groove 101 can be sealed, so that the water blocking effectiveness of a water blocking layer formed around the connecting piece 2 by the water blocking baffle 1 is ensured.
As shown in fig. 4, in an alternative embodiment of the present utility model, the water blocking baffle 1 includes:
A first plate 102 and a second plate 103 which are arranged in a butt joint manner;
The butt joint surfaces of the first plate body 102 and the second plate body 103 are provided with half grooves 104, and after the first plate body 102 and the second plate body 103 are in butt joint, the two half grooves 104 form a through groove 101.
In this embodiment, during construction, the connecting piece 2 is placed in the half groove 104 of the second plate body 103, the second plate body 103 is welded to the connecting piece 2, then the first plate body 102 is butted with the second plate body 103, so that the connecting piece 2 is completely located in the through groove 101, and the welding connection between the first plate body 102 and the connecting piece 2 is performed, so that the welding operation can be simplified, and the welding connection quality between the connecting piece 2 and the first plate body 102 and the second plate body 103 can be ensured;
during concrete construction, selecting flat steel with proper size as the connecting piece 2 according to construction specification requirements, wherein the first plate body 102 and the second plate body 103 are flat steel with the same type as the connecting piece 2; the width dimension of the first plate body 102 and the width dimension of the second plate body 103 are equal to the width dimension of the connecting piece 2, the width dimension of the water blocking baffle 1 is twice as large as the width dimension of the connecting piece 2, the water blocking baffle 1 can be ensured to form an effective water blocking layer around the connecting piece 2, and tunnel ponding caused by underground water outside a tunnel entering the tunnel along the connecting piece 2 is avoided.
In an alternative embodiment of the present utility model, the first plate 102 is welded to the second plate 103 at the interface.
In this embodiment, the integrity of the water blocking baffle 1 can be ensured by performing welded connection on the butt joint of the first plate body 102 and the second plate body 103, so as to ensure the water blocking effect of the water blocking layer formed around the connecting piece 2 by the water blocking baffle 1, and avoid the water accumulation in the tunnel caused by the underground water outside the tunnel entering the tunnel along the connecting piece 2.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. The utility model provides a tunnel earthing device's built-in fitting that blocks water which characterized in that: comprising the following steps:
A water blocking baffle (1) pre-buried inside the tunnel wall;
The connecting piece (2) is embedded in the tunnel wall, the connecting piece (2) penetrates through the water blocking baffle (1), and the inner end of the connecting piece (2) stretches into the tunnel and is connected with the intra-tunnel grounding device (3); the outer end of the connecting piece (2) extends out of the tunnel and is connected with an external device (6) of the tunnel.
2. The water-blocking embedded part of the tunnel grounding device according to claim 1, wherein the inner end of the connecting piece (2) is welded with the tunnel grounding device (3), and the outer end of the connecting piece (2) is welded with the grounding wire (4) of the tunnel external grounding device (6).
3. The water-blocking embedded part of the tunnel grounding device according to claim 2, wherein the inner end and the outer end of the connecting piece (2) are both of a bending structure.
4. A water-blocking embedded part of a tunnel grounding device according to claim 3, characterized in that the length of the bending structure of the inner end of the connecting piece (2) is adapted to the width of the connecting flat steel of the tunnel grounding device (3), and the length of the bending structure of the outer end of the connecting piece (2) is adapted to the width of the end flat steel of the grounding wire (4) of the tunnel grounding device (6).
5. The water-blocking embedded part of the tunnel grounding device according to claim 4, wherein the bending direction of the bending structure of the inner end of the connecting piece (2) is opposite to the bending direction of the bending structure of the outer end of the connecting piece (2), and the bending structure of the inner end and the bending structure of the outer end of the connecting piece (2) are respectively abutted with the inner wall and the outer wall of the tunnel.
6. The water-blocking embedment of a tunnel grounding device according to claim 1, characterized in that the length dimension of the water-blocking baffle (1) is at least three times larger than the width dimension of the connection piece (2).
7. The water-blocking embedded part of the tunnel grounding device according to claim 6, wherein a through groove (101) is formed in the middle of the water-blocking baffle plate (1) in a penetrating mode, and the through groove (101) is matched with the connecting piece (2).
8. The water-blocking embedded part of the tunnel grounding device according to claim 7, wherein the water-blocking baffle (1) is welded with the connecting piece (2).
9. The water-blocking embedment of a tunnel grounding device according to claim 8, characterized in that the water-blocking baffle (1) comprises:
the first plate body (102) and the second plate body (103) are arranged in a butt joint way;
The butt joint surface of the first plate body (102) and the second plate body (103) is provided with half grooves (104), and after the first plate body (102) and the second plate body (103) are in butt joint, the two half grooves (104) form the through groove (101).
10. The water-blocking embedded part of the tunnel grounding device according to claim 9, wherein the butt joint of the first plate body (102) and the second plate body (103) is welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323220663.8U CN221002792U (en) | 2023-11-28 | 2023-11-28 | Water-blocking embedded part of tunnel grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323220663.8U CN221002792U (en) | 2023-11-28 | 2023-11-28 | Water-blocking embedded part of tunnel grounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221002792U true CN221002792U (en) | 2024-05-24 |
Family
ID=91112173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323220663.8U Active CN221002792U (en) | 2023-11-28 | 2023-11-28 | Water-blocking embedded part of tunnel grounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221002792U (en) |
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2023
- 2023-11-28 CN CN202323220663.8U patent/CN221002792U/en active Active
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