CN211314278U - Waterproof drainage system in tunnel - Google Patents
Waterproof drainage system in tunnel Download PDFInfo
- Publication number
- CN211314278U CN211314278U CN201921087297.4U CN201921087297U CN211314278U CN 211314278 U CN211314278 U CN 211314278U CN 201921087297 U CN201921087297 U CN 201921087297U CN 211314278 U CN211314278 U CN 211314278U
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- waterproof
- drainage
- geotextile
- tunnel
- ditch
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Abstract
The utility model relates to a tunnel waterproof drainage system, including tunnel inner rail surface, preliminary bracing and secondary lining that the hoop set up, be provided with the waterproof layer between preliminary bracing and the secondary lining, equidistant a plurality of hoop drain pipes that set up between preliminary bracing and the waterproof layer, be provided with the longitudinal drain pipe between each hoop drain pipe; a central drainage ditch is arranged below the center of the bottom surface of the rail surface of the inner rail of the tunnel, side ditches are arranged on two sides below the rail surface of the inner rail of the tunnel, the top elevation of the central drainage ditch is lower than the bottom elevation of the side ditches, and the elevation of the longitudinal drainage pipe is higher than the bottom elevation of the side ditches; sub-drainage ditches which are obliquely and downwards arranged are arranged on two sides of the central drainage ditch at the bottom, and two sides of the central drainage ditch are respectively communicated with the side ditches through the sub-drainage ditches and the transverse drainage pipes B in sequence; the lateral ditch is communicated with the annular drainage pipe and the longitudinal drainage pipe through a transverse drainage pipe A. The utility model discloses can discharge the water in the tunnel fast.
Description
Technical Field
The invention relates to a tunnel, in particular to a waterproof and drainage system for the tunnel.
Background
With the rapid development of national economy, urban traffic also develops rapidly, and tunnels are key facilities for road and railway traffic maintenance. From the tunnel work progress in, often can meet the condition of infiltration, bring inconvenience for the construction, because need use a large amount of power equipment in the work progress, have certain potential safety hazard. Therefore, the waterproof and drainage system of the tunnel is an important link in the tunnel construction, normal use and safe operation process. However, the defects of high cost and long construction period in the prior art cause a plurality of difficulties in the design and construction of the existing tunnel waterproof drainage system.
Disclosure of Invention
The invention aims to provide a tunnel waterproof drainage system which is simple in structure, safe and reliable and can effectively solve the problem of water seepage of a tunnel.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a tunnel waterproof drainage system comprises an arch wall, an inverted arch, a tunnel inner rail surface, a primary support and a secondary lining which are arranged annularly, wherein a waterproof layer is arranged between the primary support and the secondary lining; a central drainage ditch is arranged below the center of the bottom surface of the rail surface of the inner rail of the tunnel, side ditches are arranged on two sides below the rail surface of the inner rail of the tunnel, the top elevation of the central drainage ditch is lower than the bottom elevation of the side ditches, and the elevation of the longitudinal drainage pipe is higher than the bottom elevation of the side ditches; sub-drainage ditches which are obliquely and downwards arranged are arranged on two sides of the central drainage ditch at the bottom, and two sides of the central drainage ditch are respectively communicated with the side ditches through the sub-drainage ditches and the transverse drainage pipes B in sequence; the lateral ditch is respectively communicated with the annular drainage pipe and the longitudinal drainage pipe through a transverse drainage pipe A.
Further, the waterproof layer comprises a polyurethane waterproof coating layer, geotextile, a waterproof board and geotextile; the polyurethane waterproof coating layer is arranged on the primary support, and geotextile, a waterproof board and geotextile are sequentially arranged outside the polyurethane waterproof coating layer; the geotextile is fixed on the polyurethane waterproof coating layer and the primary support through the hot-melt cushion layer and the cement nails; the waterproof board and the geotextile are tightly attached to the geotextile and are welded on the hot-melt cushion layer through the electric pressure welder.
Further, secondary lining is provided with the construction joint in side ditch top elevation department, and the top of construction joint is provided with the waterproof board perpendicularly, and waterproof board below parallel arrangement has back of the body to paste formula rubber waterstop, and the construction joint middle part is provided with the formula rubber waterstop of burying perpendicularly, and construction joint department is filled with the joint strip of filling up, and the joint strip of filling up is fixed together with back of the body to paste formula rubber waterstop, the formula rubber waterstop of burying in.
Further, the secondary lining molded concrete is C30 waterproof concrete; the diameters of the circumferential drain pipe, the longitudinal drain pipe, the transverse drain pipe A and the transverse drain pipe B are all 100HDPE single-wall perforated corrugated pipes which are wrapped with non-woven fabrics.
Further, the waterproof board and the geotextile adopt HDPE waterproof boards, the thickness of the waterproof board and the geotextile is 1.5mm, the waterproof board and the geotextile are mutually overlapped, the overlapping length is 120mm, and the waterproof board and the geotextile adopt 300g/m2The polyethylene nonwoven fabric of (1); the geotextile adopts 300g/m2The polyethylene nonwoven fabric of (1).
Furthermore, the waterproof board adopts the HDPE waterproof board, and thickness is 1.5mm, and the overlap joint between the waterproof board, overlap joint length is 120 mm.
The invention has the advantages and beneficial effects that:
the tunnel waterproof drainage system forms an organic system, so that water in the tunnel can be quickly drained, comprehensive large-range drainage can be performed, the tunnel arch part and the side wall have good waterproof and drainage performance, the possibility of water accumulation in the tunnel is avoided, the waterproof and drainage effect is reliable, comprehensive large-range drainage can be performed, and the tunnel operation and maintenance cost is saved.
Drawings
FIG. 1 is a schematic structural view of a waterproof and drainage system for tunnels according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the waterproof layer;
FIG. 4 is a schematic view of a construction joint configuration.
In the figure, 1 is primary support; 2 is a circular drainage pipe; 3 is a waterproof layer; 4, secondary lining; 5 is a longitudinal drain pipe; 6 is a transverse drain pipe A; 7 is a transverse drain pipe B; 8 is a sub drainage ditch; 9 is a lateral ditch; 10 is a central drainage ditch; 11 is the inner rail surface of the tunnel; 12 a polyurethane waterproof coating layer; 13 is geotextile; 14, waterproof board and geotextile; 15 is a hot melt cushion layer; 16 is a cement nail; 17 is a waterproof board; 18 is a back-attached rubber water stop; 19 is a middle-buried rubber water stop, 20 is a joint filling plate, and 21 is a construction joint.
Detailed Description
In order to further illustrate the present invention, the following detailed description of the present invention is given with reference to the accompanying drawings and examples, which should not be construed as limiting the scope of the present invention.
As shown in fig. 1 and 2, the tunnel waterproof drainage system comprises an arch wall, an inverted arch, a tunnel inner rail surface 11, a primary support 1 and a secondary lining 4 which are annularly arranged, wherein a waterproof layer 3 is arranged between the primary support 1 and the secondary lining 4, a plurality of annularly drainage pipes 2 are arranged between the primary support 1 and the waterproof layer 3 at equal intervals, the annularly drainage pipes 2 are communicated with each other through longitudinal drainage pipes 5, and the longitudinal drainage pipes 5 are arranged at the connecting part of the arch wall and the inverted arch; a central drainage ditch 10 is arranged below the center of the bottom surface of the rail surface 11 of the inner tunnel rail, side ditches 9 are arranged on two sides below the rail surface 11 of the inner tunnel rail, the top elevation of the central drainage ditch 10 is lower than the bottom elevation of the side ditches 9, and the elevation of the longitudinal drainage pipe 5 is higher than the bottom elevation of the side ditches 9; the two sides of the central drainage ditch 10 at the bottom are respectively provided with a sub-drainage ditch 8 which is arranged obliquely downwards, and the two sides of the central drainage ditch are respectively communicated with the side ditches 9 through the sub-drainage ditch 8 and a transverse drainage pipe B7 in sequence; the lateral ditch 9 is communicated with the annular drain pipe 2 and the longitudinal drain pipe 5 through a transverse drain pipe A6 respectively. C30 waterproof concrete is adopted as the secondary lining 4 molded concrete, and the anti-permeability grade is not less than S6; the diameters of the circumferential drain pipe 2, the longitudinal drain pipe 5, the transverse drain pipe A6 and the transverse drain pipe B7 are all 100HDPE single-wall perforated corrugated pipes, and the corrugated pipes are wrapped with non-woven fabrics.
As shown in fig. 3, the waterproof layer 3 includes polyurethane waterproofThe coating layer 12, the geotextile 13, the waterproof board and the geotextile 14; the polyurethane waterproof coating layer 12 is arranged on the primary support 1, and the geotextile 13, the waterproof board and the geotextile 14 are sequentially arranged outside the polyurethane waterproof coating layer 12; the geotextile 13 is fixed on the polyurethane waterproof coating layer 12 and the primary support 1 through a hot-melt cushion layer 15 and a cement nail 16; the waterproof board and the geotextile 14 are tightly attached to the geotextile 13 and are welded on the hot-melt cushion layer 15 through a voltage welder. The waterproof board and the geotextile 14 adopt HDPE waterproof boards, the thickness of the waterproof board and the geotextile 14 is 1.5mm, the waterproof board and the geotextile 14 are mutually lapped, the lapping length is 120mm, and the waterproof board and the geotextile 14 adopt 300g/m2The polyethylene nonwoven fabric of (1); the geotextile 13 adopts 300g/m2The polyethylene nonwoven fabric of (1).
As shown in fig. 1 and 4, a construction joint 21 is arranged at the top elevation of the side ditch 9 of the secondary lining 4, a waterproof plate 17 is vertically arranged above the construction joint 21, a back-attached rubber water stop 18 is arranged below the waterproof plate 17 in parallel, a middle-embedded rubber water stop 19 is vertically arranged in the middle of the construction joint, the construction joint is filled with a joint filling plate 20, and the joint filling plate 20, the back-attached rubber water stop 18 and the middle-embedded rubber water stop 19 are fixed together by polyurethane joint filling glue. The waterproof board 17 is made of HDPE waterproof boards, the thickness of the waterproof boards is 1.5mm, the waterproof boards are mutually overlapped, and the overlapping length is 120 mm.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a waterproof drainage system in tunnel, the tunnel is including preliminary bracing (1) and secondary lining (4) that arch wall, inverted arch, tunnel inner rail face (11), hoop set up, its characterized in that: a waterproof layer (3) is arranged between the primary support (1) and the secondary lining (4), a plurality of annular drainage pipes (2) are arranged between the primary support (1) and the waterproof layer (3) at equal intervals, the annular drainage pipes (2) are communicated through a longitudinal drainage pipe (5), and the longitudinal drainage pipe (5) is arranged at the joint of the arch wall and the inverted arch; a central drainage ditch (10) is arranged below the center of the bottom surface of the rail surface (11) in the tunnel, side ditches (9) are arranged on two sides below the rail surface (11) in the tunnel, the elevation of the top of the central drainage ditch (10) is lower than the elevation of the bottom of each side ditch (9), and the elevation of the longitudinal drainage pipe (5) is higher than the elevation of the bottom of each side ditch (9); sub-drainage ditches (8) which are obliquely and downwards arranged are arranged on two sides of the central drainage ditch (10) at the bottom, and two sides of the central drainage ditch are respectively communicated with the side ditches (9) through the sub-drainage ditches (8) and the transverse drainage pipes B (7) in sequence; the lateral ditch (9) is respectively communicated with the annular drainage pipe (2) and the longitudinal drainage pipe (5) through a transverse drainage pipe A (6); the waterproof layer (3) comprises a polyurethane waterproof coating layer (12), geotextile (13) and waterproof board and geotextile (14); the polyurethane waterproof coating layer (12) is arranged on the primary support (1), and geotextile (13), a waterproof board and geotextile (14) are sequentially arranged on the outer side of the polyurethane waterproof coating layer (12); the geotextile (13) is fixed on the polyurethane waterproof coating layer (12) and the primary support (1) through a hot-melt cushion layer (15) and a cement nail (16); the waterproof board and the geotextile (14) are tightly attached to the geotextile (13) and are welded on the hot-melt cushion layer (15) through an electric pressure welder.
2. The waterproof and drainage system for tunnels according to claim 1, wherein: secondary lining (4) are provided with construction joint (21) in side ditch (9) top elevation department, and the top of construction joint is provided with waterproof board (17) perpendicularly, and waterproof board (17) below parallel arrangement has back of the body formula rubber waterstop (18), and the construction joint middle part is provided with in the perpendicular formula rubber waterstop (19) of burying, and construction joint department is filled with joint strip (20), and joint strip (20) and back of the body formula rubber waterstop (18), well bury formula rubber waterstop (19) and fix together.
3. The tunnel waterproofing and drainage system according to claim 1 or 2, wherein: the secondary lining (4) mould concrete adopts C30 waterproof concrete; the diameters of the circumferential drain pipe (2), the longitudinal drain pipe (5), the transverse drain pipe A (6) and the transverse drain pipe B (7) are all 100HDPE single-wall perforated corrugated pipes wrapped with non-woven fabrics.
4. The waterproof and drainage system for tunnels according to claim 1, wherein: the waterproof board and the geotextile (14) adopt HDPE waterproof boards, the thickness of the waterproof board and the geotextile (14) is 1.5mm, the waterproof board and the geotextile (14) are mutually overlapped, the overlapping length is 120mm, and the waterproof board and the geotextile (14) adopt 300g/m2The polyethylene nonwoven fabric of (1); the geotextile (13) adopts 300g/m2The polyethylene nonwoven fabric of (1).
5. The waterproof and drainage system for tunnels according to claim 2, wherein: the waterproof plates (17) are made of HDPE waterproof plates, the thickness of the waterproof plates is 1.5mm, the waterproof plates are mutually overlapped, and the overlapping length is 120 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921087297.4U CN211314278U (en) | 2019-07-12 | 2019-07-12 | Waterproof drainage system in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921087297.4U CN211314278U (en) | 2019-07-12 | 2019-07-12 | Waterproof drainage system in tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211314278U true CN211314278U (en) | 2020-08-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921087297.4U Expired - Fee Related CN211314278U (en) | 2019-07-12 | 2019-07-12 | Waterproof drainage system in tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211314278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022223053A1 (en) * | 2021-10-19 | 2022-10-27 | 中铁隧道局集团有限公司 | Subway waterproof facility |
-
2019
- 2019-07-12 CN CN201921087297.4U patent/CN211314278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022223053A1 (en) * | 2021-10-19 | 2022-10-27 | 中铁隧道局集团有限公司 | Subway waterproof facility |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 Termination date: 20210712 |