CN220487668U - Water-rich tunnel drainage system - Google Patents
Water-rich tunnel drainage system Download PDFInfo
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- CN220487668U CN220487668U CN202322083308.4U CN202322083308U CN220487668U CN 220487668 U CN220487668 U CN 220487668U CN 202322083308 U CN202322083308 U CN 202322083308U CN 220487668 U CN220487668 U CN 220487668U
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- tunnel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000010276 construction Methods 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model belongs to the technical field of building waterproof construction, and in particular relates to a water-rich tunnel drainage system, which is arranged between a primary lining and a secondary lining of a tunnel and comprises the following components: the annular drain pipe extends along the circumferential direction of the inner wall of the tunnel, and two ends of the annular drain pipe extend to arch feet of the tunnel respectively; the two longitudinal drain pipes are respectively positioned at two arch legs of the tunnel and extend along the trend of the tunnel; the two groups of transverse drainage pipes are correspondingly and respectively positioned at two arch legs of the tunnel, each group of transverse drainage pipe comprises a plurality of transverse drainage pipes, and the plurality of transverse drainage pipes are in one-to-one correspondence with the plurality of circumferential drainage pipes and are connected with the drainage ditches of the tunnel. The tunnel drainage system extends tunnel penetrating water into drainage ditches on two sides of a tunnel road surface through the transverse drainage pipe, so that the tunnel is not required to be broken during maintenance and construction, hole sealing construction is not required, normal traffic operation is guaranteed, and maintenance and construction are convenient.
Description
Technical Field
The utility model belongs to the technical field of tunnel waterproofing, and particularly relates to a water-rich tunnel drainage system.
Background
Along with the rapid development of traffic industry in China, the areas for constructing tunnels are wider and wider, and the longitudinal lengths of the tunnels are longer and longer. Along with the increase of the longitudinal length of the tunnel, the tunnel inevitably spans over a geological section with complex geological conditions, such as a section rich in underground water, karst stratum and the like, so that water is frequently suffered during mountain tunnel construction and operation, and the underground water of the water-rich stratum accelerates the ageing of a tunnel system and threatens the operation safety of a tunnel pavement.
In order to avoid the accumulation of groundwater under the pavement and solve the problem of water leakage of the pavement, a mode of dredging a central drainage ditch can be adopted, but the central drainage ditch is arranged in the center of the pavement of a tunnel, and the pavement is required to be broken and destroyed during maintenance. Many highway tunnels have large traffic volume and do not have the condition of hole sealing maintenance.
Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a water-rich tunnel drainage system.
In order to achieve the above object, the present utility model provides the following technical solutions:
a water-rich tunnel drainage system disposed between a primary lining and a secondary lining of a tunnel, comprising:
the annular drain pipes extend along the circumferential direction of the inner wall of the tunnel, two ends of the annular drain pipes extend to arch feet of the tunnel respectively, and a plurality of annular drain pipes are uniformly distributed along the trend of the tunnel;
the two longitudinal drain pipes are respectively positioned at two arch legs of the tunnel and extend along the trend of the tunnel, and the two longitudinal drain pipes are sequentially connected with the same ends of the plurality of annular drain pipes in series;
the two groups of transverse drainage pipe groups are correspondingly and respectively positioned at two arch legs of the tunnel, each group of transverse drainage pipe group comprises a plurality of transverse drainage pipes, the transverse drainage pipes are uniformly distributed at the bottom of the tunnel along the trend of the tunnel and are in one-to-one correspondence with the annular drainage pipes, one ends of the transverse drainage pipes are communicated with the annular drainage pipes and the longitudinal drainage pipes, and the other ends of the transverse drainage pipes are lengthened to drainage ditches of the tunnel.
Preferably, the outer wall of the annular drain pipe is provided with first water permeable holes, and a plurality of the first water permeable holes are uniformly distributed in the circumferential direction and the axial direction of the annular drain pipe.
Preferably, a second water permeable hole is arranged above the longitudinal drain pipe, and a plurality of water permeable holes are uniformly distributed in the range of 180 degrees above the longitudinal drain pipe in the circumferential direction of the longitudinal drain pipe and are uniformly distributed in the axial direction of the longitudinal drain pipe.
Preferably, at the arch foot of the tunnel, the circumferential drain pipe, the longitudinal drain pipe and the transverse drain pipe are connected through a four-way joint.
Preferably, a drainage system is arranged at the transverse tunnel of the tunnel, and a transverse drain pipe of the drainage system in the transverse tunnel is lengthened to a drain ditch of the tunnel through an elbow.
Preferably, the drainage system is provided with a waterproof board corresponding to the inner side of the tunnel, two sides of the waterproof board are outwards bent to form arc grooves at arch feet of the tunnel, and the longitudinal drainage pipes are correspondingly distributed in the arc grooves.
Preferably, a flexible lining is arranged on the inner side of the waterproof board, and a secondary lining is arranged on the inner side of the flexible lining;
the overlapping parts of two adjacent waterproof boards are staggered with the construction joint of the secondary lining, and welding seams are arranged on two sides of the overlapping parts of the two adjacent waterproof boards so as to form an inflation inspection cavity.
The beneficial effects are that: the tunnel drainage system extends tunnel penetrating water into drainage ditches on two sides of a tunnel road surface through the transverse drainage pipe, so that the tunnel is not required to be broken during maintenance and construction, hole sealing construction is not required, normal traffic operation is guaranteed, and maintenance and construction are convenient.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. Wherein:
FIG. 1 is a schematic diagram of a drainage system according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram illustrating the connection of a four-way connector according to an embodiment of the present utility model;
fig. 3 is a schematic view of welding a waterproof board according to an embodiment of the present utility model.
In the figure: 1. a circumferential drain pipe; 2. a longitudinal drain pipe; 3. a three-way pipe; 4. a first water permeable hole; 5. a second water permeable hole; 6. connecting a guide tube; 7. a flexible liner; 8. a waterproof board; 9. secondary lining; 10. a transverse drain pipe; 11. welding seams; 12. the cavity is inspected.
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.
In the description of the present utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present utility model and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.
The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
As shown in fig. 1-3, a drainage system of a water-rich tunnel is arranged between a primary lining and a secondary lining 9 of the tunnel, and is implemented specifically after the primary lining is completed, the drainage system comprises a circumferential drainage pipe 1, a longitudinal drainage pipe 2 and a transverse drainage pipe 10, the circumferential drainage pipe 1 is a pvc pipeline, the circumferential drainage pipe 1 extends along the circumference of the inner wall of the tunnel in a bending mode, in order to enable the primary lining and the secondary lining 9 to be tightly attached, grooves respectively corresponding to the circumferential drainage pipe 1, the longitudinal drainage pipe 2 and the transverse drainage pipe 10 are cut on the inner wall of the primary lining, two ends of the circumferential drainage pipe 1 respectively extend to arch feet of the tunnel, a plurality of circumferential drainage pipes 1 are uniformly distributed along the trend of the tunnel, the spacing between the circumferential drainage pipes 1 of the tunnel for different geology can be adjusted, for example, the spacing between larger sections of groundwater is 5m, and the spacing between blind pipes of smaller sections of water is 10m. The two longitudinal drain pipes 2 are respectively positioned at two arch feet of the tunnel and extend along the trend of the tunnel, the two longitudinal drain pipes 2 are sequentially connected with the same end of the plurality of annular drain pipes 1 in series, each longitudinal drain pipe 2 can be correspondingly provided with a plurality of sections, and the length of each section of longitudinal drain pipe 2 corresponds to the distance between two adjacent annular drain pipes 1.
The transverse drainage pipe sets are two groups, each group of transverse drainage pipe sets comprises a plurality of transverse drainage pipes 10, the two groups of transverse drainage pipe sets are correspondingly and respectively positioned at two arch feet of the tunnel, each group of transverse drainage pipe sets comprises a plurality of transverse drainage pipes 10, the transverse drainage pipes 10 are uniformly distributed at the bottom of the tunnel along the trend of the tunnel, the transverse drainage pipes 10 are perpendicular to the trend of the tunnel and are in one-to-one correspondence with the plurality of circumferential drainage pipes 1, water seepage guided by the circumferential drainage pipes 1 can be guided out through the transverse drainage pipes 10, one end of each transverse drainage pipe 10 is communicated with the circumferential drainage pipes 1 and the longitudinal drainage pipes 2, and the other end of each transverse drainage pipe 10 is lengthened to a drainage ditch of the tunnel.
The plurality of circumferential drain pipes 1 are connected in series through the longitudinal drain pipes 2, so that the drain pipes in the tunnel form a complete drainage system.
In this embodiment, drainage ditches are formed at arch feet at two sides of the tunnel, and extend along the trend of the tunnel so as to drain the seepage water in the tunnel. Be equipped with the drain pipe in the escape canal, in this implementation, the whole elevation of drain pipe is less than horizontal drain pipe 10 elevations, and the elevation of preferably tunnel wherein one end is greater than the other end, and the drain pipe corresponds the tunnel interior part and extends along same slope to this can make infiltration can be smooth and easy discharge tunnel.
The drain pipe can be a corrugated pipe or a pvc pipe, an interface corresponding to the transverse drain pipe 10 is arranged on the outer wall of the drain pipe, and the transverse drain pipe 10 is communicated with the drain pipe through a hot melting mode.
In an alternative embodiment, the annular drain pipe 1 is an HDPE DN/ID50 single-wall corrugated pipe, the outer wall of the annular drain pipe 1 is provided with a plurality of first water permeable holes 4, and the plurality of first water permeable holes 4 are uniformly distributed in the circumferential direction and the axial direction of the annular drain pipe 1. The diameter of each first water permeable hole 4 is 6mm, and the interval between any two adjacent first water permeable holes 4 is 50mm.
In an alternative embodiment, the longitudinal drain pipe 2 is a double-wall corrugated pipe HDPE DN/ID100, a second water permeable hole 5 is arranged above the longitudinal drain pipe 2, the diameter of the first water permeable hole 4 is 6mm, and the interval between two adjacent first water permeable holes 4 in the axial direction is 50mm.
In the circumference of the longitudinal drain pipe 2, a plurality of water permeable holes are uniformly distributed within the range of 180 degrees above the longitudinal drain pipe 2, specifically 3-5 rows of second water permeable holes 5 extending along the axial direction of the longitudinal drain pipe 2 are uniformly distributed along the axial direction of the longitudinal drain pipe 2. Whereby water seeping down the inner wall of the tunnel is led from the second water permeable holes 5 to the transverse drain pipe 10.
In another alternative embodiment, the lateral drain pipe 10 is a pvc pipe having the same diameter as the longitudinal drain pipe 2, and the circumferential drain pipe 1, the longitudinal drain pipe 2 and the lateral drain pipe 10 are connected by a four-way joint at the arch foot of the tunnel.
The four-way joint comprises a three-way pipeline 3 and a guide pipe 6, wherein the three-way pipeline 3 comprises a first channel extending along the longitudinal drain pipe 2, a second channel extending along the horizontal direction towards the middle of the tunnel and perpendicular to the first channel, and the second channel is mutually communicated with the first channel. The first channel corresponds to be connected with the longitudinal drain pipe 2, the second channel corresponds to be communicated with the transverse drain pipe 10, a perforation is arranged in the middle of the first channel, a connecting guide pipe 6 is connected in the perforation in a hot melting or glue connection mode, the inner diameter of the connecting guide pipe 6 is matched with the outer diameter of the annular drain pipe 1, the connecting guide pipe 6 extends along the inner wall of a tunnel, and the annular drain pipe 1 is correspondingly connected in a hot melting mode.
In an alternative embodiment, a flexible lining 7 is provided inside the waterproof board 8, the flexible lining 7 may be geotextile, and a secondary lining 9 is provided inside the flexible lining 7.
The drainage system corresponds the tunnel inboard and is equipped with waterproof board 8, waterproof board 8 width 4m, waterproof board 8 welding seam 11 overlap joint portion stagger the distance with the construction joint of secondary lining, and waterproof board 8 both sides outwards bend to the arc wall in the arch bar department of tunnel, make waterproof board 8 produce the arc wall vertical drain pipe 2 of bending in arch bar department through the form of heating deformation and correspond to be distributed in the arc wall. In this way, it can be further ensured that the lower water seepage can be fully discharged, and in this embodiment, the arc-shaped groove extends upwards to the upper part of the longitudinal drain pipe 2, so that the lower water seepage between two adjacent annular drain pipes 1 can be led to the drain groove from the water seepage hole above the longitudinal drain pipe 2.
Welding seams 11 are arranged on two sides of the lap joint parts of two adjacent waterproof boards 8 to form an inflation inspection cavity 12 for detecting welding quality, one end of the inspection cavity 12 is specifically plugged, the other end of the inspection cavity 12 is inflated through an inflation detector, pressure is maintained after the pressure is maintained at 0.2-0.3MPa, and the welding quality is determined according to pressure change in the inspection cavity 12. In an alternative embodiment of the present utility model,
a drainage system is arranged at the transverse tunnel of the tunnel, and a transverse drainage pipe 10 of the drainage system in the transverse tunnel is lengthened to the drainage ditch of the tunnel through an elbow.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the appended claims.
Claims (5)
1. A water-rich tunnel drainage system, wherein the drainage system is disposed between a primary lining and a secondary lining of a tunnel, comprising:
the annular drain pipes extend along the circumferential direction of the inner wall of the tunnel, two ends of the annular drain pipes extend to arch feet of the tunnel respectively, and a plurality of annular drain pipes are uniformly distributed along the trend of the tunnel;
the two longitudinal drain pipes are respectively positioned at two arch legs of the tunnel and extend along the trend of the tunnel, and the two longitudinal drain pipes are sequentially connected with the same ends of the plurality of annular drain pipes in series;
the two groups of transverse drainage pipe groups are correspondingly and respectively positioned at two arch legs of the tunnel, each group of transverse drainage pipe group comprises a plurality of transverse drainage pipes, the transverse drainage pipes are uniformly distributed at the bottom of the tunnel along the trend of the tunnel and are in one-to-one correspondence with the annular drainage pipes, one end of each transverse drainage pipe is communicated with the annular drainage pipe and the longitudinal drainage pipe, and the other end of each transverse drainage pipe is lengthened to a drainage ditch of the tunnel;
the drainage system is provided with a waterproof board corresponding to the inner side of the tunnel, two sides of the waterproof board are outwards bent to form arc grooves at arch feet of the tunnel, and the longitudinal drainage pipes are correspondingly distributed in the arc grooves;
a flexible lining is arranged on the inner side of the waterproof board, and a secondary lining is arranged on the inner side of the flexible lining;
the overlapping parts of two adjacent waterproof boards are staggered with the construction joint of the secondary lining, and welding seams are arranged on two sides of the overlapping parts of the two adjacent waterproof boards so as to form an inflation inspection cavity.
2. The water-rich tunnel drainage system of claim 1, wherein a first water permeable hole is formed in the outer wall of the circumferential drain pipe, and a plurality of the first water permeable holes are uniformly distributed in the circumferential direction and the axial direction of the circumferential drain pipe.
3. The water-rich tunnel drainage system of claim 1, wherein a second water permeable hole is arranged above the longitudinal drain pipe, and a plurality of water permeable holes are uniformly distributed in a range of 180 ° above the longitudinal drain pipe in the circumferential direction of the longitudinal drain pipe and are uniformly distributed in the axial direction of the longitudinal drain pipe.
4. The water-rich tunnel drainage system of claim 1 wherein the circumferential drain, the longitudinal drain and the transverse drain are connected by a four-way joint at the arch foot of the tunnel.
5. The water-rich tunnel drainage system of claim 1, wherein a drainage system is provided at a tunnel cross hole, and a transverse drain pipe of the drainage system in the cross hole is lengthened to a drain ditch of the tunnel through an elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322083308.4U CN220487668U (en) | 2023-08-04 | 2023-08-04 | Water-rich tunnel drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322083308.4U CN220487668U (en) | 2023-08-04 | 2023-08-04 | Water-rich tunnel drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220487668U true CN220487668U (en) | 2024-02-13 |
Family
ID=89825810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322083308.4U Active CN220487668U (en) | 2023-08-04 | 2023-08-04 | Water-rich tunnel drainage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220487668U (en) |
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2023
- 2023-08-04 CN CN202322083308.4U patent/CN220487668U/en active Active
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