CN110952992A - Superimposed line tunnel - Google Patents
Superimposed line tunnel Download PDFInfo
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- CN110952992A CN110952992A CN201911206597.4A CN201911206597A CN110952992A CN 110952992 A CN110952992 A CN 110952992A CN 201911206597 A CN201911206597 A CN 201911206597A CN 110952992 A CN110952992 A CN 110952992A
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- tunnel
- drainage
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- tunnels
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- 241000521257 Hydrops Species 0.000 claims abstract description 5
- 206010030113 Oedema Diseases 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 29
- 230000001174 ascending effect Effects 0.000 claims description 12
- 239000011435 rock Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 17
- 239000002351 wastewater Substances 0.000 abstract description 14
- 238000012423 maintenance Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000009413 insulation Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The superposed line tunnel comprises two tunnels superposed with each other and a drainage pipeline communicated with the two tunnels; the projections of the two tunnels in the horizontal direction are not overlapped with the projections of the two tunnels in the vertical direction; each tunnel comprises a lining with a through hole and drainage ditches arranged longitudinally along the tunnel; two through-holes in tunnel and intercommunication are corresponding the escape canal is run through respectively at drainage tube's both ends to with the upper string the tunnel the hydrops in the escape canal drainage to the lower string in the escape canal in the tunnel. Liquid in the tunnel of the stacking line is collected into the drainage ditch, and accumulated liquid in the drainage ditch of the tunnel of the stacking line is drained into the drainage ditch of the tunnel of the stacking line through the drainage pipeline. Therefore, a waste water pump room is not needed to be arranged in the tunnel of the superposed line, and the project investment and the later-stage operation maintenance cost of the waste water pump room are reduced.
Description
Technical Field
The application relates to the technical field of tunnels, in particular to a superposed line tunnel.
Background
Along with the expansion of urban rail transit network construction, in order to realize that urban rail transit lines smoothly pass through narrow and small space areas, two tunnels with upper and lower superposed lines are increasingly adopted in interval tunnels. The liquid such as washing water, leakage water and the like generated by urban rail transit in the two tunnels of the upper and lower superposed line are accumulated in the superposed line tunnel, thereby not only affecting the operation safety of the urban rail transit, but also affecting the environment in the tunnel. Generally, two tunnels of the upper and lower horizontal lines are respectively provided with a waste water pump room for discharging waste water in the tunnels. But the waste water pump rooms are separately arranged for the two tunnels of the vertical superposed line of each interval, so that the engineering investment and the later-period operation maintenance cost are higher.
Disclosure of Invention
In view of this, this application embodiment expects to provide a superposed line tunnel, and two tunnels of superposed line set up the waste water pump house about solving each interval, and engineering investment and later stage operation dimension guarantee expense are higher problem, for solving above-mentioned technical problem, the technical scheme of this application embodiment is realized like this:
the embodiment of the application provides a superposed line tunnel which comprises two tunnels for superposing lines up and down and a drainage pipeline for communicating the two tunnels; the projections of the two tunnels in the horizontal direction are not overlapped with the projections of the two tunnels in the vertical direction; each tunnel comprises a lining with a through hole and drainage ditches arranged longitudinally along the tunnel; two through-holes in tunnel and intercommunication are corresponding the escape canal is run through respectively at drainage tube's both ends to with the upper string the tunnel the hydrops in the escape canal drainage to the lower string in the escape canal in the tunnel.
Further, the clear distance between the two tunnels is less than or equal to 20 m.
Furthermore, the longitudinal slope of the tunnel with the superposed lines is designed to be a double-sided slope, one side of the double-sided slope is an ascending slope, the other side of the double-sided slope is a descending slope, and the drainage pipeline is communicated to the drainage ditch and is positioned at the bottom end of the ascending slope or the bottom end of the descending slope.
Further, the tunnel of the stacking line comprises a sedimentation tank, and the sedimentation tank is communicated with the drainage ditch of the tunnel of the stacking line.
Further, the drainage pipeline comprises a drainage pipe and a lining pipe arranged in the drainage pipe;
and/or the number of the drainage pipelines is two, and the two drainage pipelines are communicated with the two tunnels in parallel.
Further, the superimposed tunnel comprises a sealing assembly comprising:
the sealing member is located the through-hole with between the drainage pipe way, the sealing member is established including the cover sealing washer outside the drainage pipe way with be located the strengthening rib of sealing washer both sides, the both ends of sealing washer respectively with the through-hole inner wall with drainage pipe way's outer wall butt.
And the lead sealing layer is positioned between the through hole and the drainage pipeline and positioned on one side, far away from the surrounding rock, of the sealing piece.
Further, the superimposed line tunnel includes the waterproof layer of filling between the through-hole with the drainage pipe, the waterproof layer is located the sealing member is close to one side of country rock.
Further, the superimposed tunnel includes:
one end of the fixing piece is connected with the inner wall of the drainage pipeline, and the other end of the fixing piece is connected with the lining;
and the filling layer is used for filling the gap between the fixing piece and the inner wall of the drainage pipeline.
Further, the superimposed tunnel includes:
the elastic piece is positioned on one side of the fixing piece close to the lining;
and a connecting member penetrating the fixing member and the elastic member to fix the fixing member to the lining.
Further, the superposed line tunnel comprises an insulating layer, and the insulating layer is arranged on the inner wall of the through hole and the outer wall of the drainage pipeline.
The utility model provides a fold line tunnel, the liquid in the tunnel of fold line collects to the escape canal in, through the drainage pipe way with the hydrops drainage in the escape canal in the tunnel of fold line to the escape canal in the tunnel of fold line down. Therefore, a waste water pump room is not needed to be arranged in the tunnel of the superposed line, and the project investment and the later-stage operation maintenance cost of the waste water pump room are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a view angle of a superimposed tunnel according to an embodiment of the present application;
FIG. 2 is a schematic structural view of another perspective of the stacked-line tunnel of FIG. 1;
FIG. 3 is a schematic view of the connection of the drain line and the lining of the tunnel of FIG. 1;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
fig. 5 is a sectional view taken in the direction B-B in fig. 3.
Description of the reference numerals
A tunnel 10; a lining 11; a through hole 11 a; a drain 12; a drain line 20; a drain pipe 21; a liner tube 22; a seal assembly 30; a seal member 31; a seal ring 311; a reinforcing rib 312; a lead seal 32; a waterproof layer 40; a fixing member 50; a filler layer 60; an elastic member 70; a connecting member 80; an insulating layer 90; the surrounding rock 100.
Detailed Description
It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.
In the description of the present application, the "up", "down", "top", "bottom" orientations or positional relationships are based on the orientations or positional relationships of the stacked line tunnels in normal use, such as the orientations or positional relationships in fig. 2. "longitudinal direction of the tunnel" refers to the direction of tunnel extension. "mm" means international units of millimeters. "m" refers to the international unit of meters. It is to be understood that such directional terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application.
In the prior art, tunnels can be generally used for urban rail transit, railway rail transit and the like. The embodiment of the application takes the case that the superimposed tunnel is used for urban rail transit as an example for explanation. However, the laminated tunnel provided by the embodiment of the present application includes, but is not limited to, application to urban rail transit.
Referring to fig. 1 and 2, the embodiment of the present application provides a stacked-line tunnel, which includes two tunnels 10 stacked one above the other and a drain line 20 communicating the two tunnels 10. The projections of the two tunnels 10 in the horizontal direction and the projections in the vertical direction do not coincide. Each tunnel 10 includes a lining 11 having a through-hole 11a and a drainage ditch 12 provided in a longitudinal direction of the tunnel. The two ends of the drainage pipeline 20 respectively penetrate through the through holes 11a of the two tunnels 10 and are communicated with the corresponding drainage ditches 12, so that accumulated liquid in the drainage ditches 12 of the tunnels 10 stacked on the upper line is drained to the drainage ditches 12 of the tunnels 10 stacked on the lower line.
The projections of the two tunnels 10 in the horizontal direction and the projections in the vertical direction do not coincide. That is, the projection of the tunnel 10 of the upper line and the projection of the tunnel 10 of the lower line in the same horizontal plane do not coincide with each other, and the projection in the same vertical plane does not coincide with each other. The liquid in the tunnel 10 on the upper line is collected into the drainage ditch 12, and the accumulated liquid in the drainage ditch 12 of the tunnel 10 on the upper line is drained to the drainage ditch 12 of the tunnel 10 on the lower line through the drainage pipeline 20. Therefore, a waste water pump room is not needed to be arranged in the tunnel 10 of the superposed line, and the project investment and the later-stage operation maintenance cost of the waste water pump room are reduced. The construction method of the drainage pipeline 20 in the embodiment of the application is simple, the engineering investment is small, and the later-stage operation maintenance cost is low.
Illustratively, two tunnels 10 of the upper and lower lines in the embodiment of the present application are used for urban rail transit, and the projections of the two tunnels 10 in the horizontal direction and the projections in the vertical direction do not coincide. That is, the rail surface elevation of the rails in the tunnel 10 of the upper stacked line is higher than the rail surface elevation of the rails in the tunnel 10 of the lower stacked line. Under such a condition, it is difficult to install the waste water pump house in the communication passage between the two tunnels 10, and the waste water pump houses are respectively installed in the tunnels 10 of the upper line and the tunnels 10 of the lower line, so that the construction investment and the maintenance cost are high. Adopt the drain pipe way 20 that this application embodiment provided, can be with in the hydrops drainage to the escape canal 12 of the tunnel 10 of fold line down in the escape canal 12 of the tunnel 10 of fold line, outside the tunnel 10 of fold line was discharged in the waste water drainage through the escape canal 12 of the tunnel 10 of fold line down, perhaps drainage to the waste water pump house in the tunnel 10 of fold line down with the water in the escape canal 12 of the tunnel 10 of fold line down, reduction engineering investment cost and later stage operation maintenance cost that can be very big.
In one embodiment, referring to fig. 2, the clear distance between two tunnels 10 is less than or equal to 20 m. The clear distance between two tunnels 10 refers to the minimum distance between the inner contours of the two tunnels 10 projected in the vertical direction. The clear distance between two tunnels 10 is L which is less than or equal to 20m, such as 2m, 4m, 5m, 7m, 9m, 10m, 12m, 14m, 15m, 17m, 19m and 20m, so that a drainage pipeline 20 is convenient to arrange.
In one embodiment, the longitudinal slopes of the tunnel 10 of the overlapping lines are designed as double-sided slopes (not shown), one side of which is an ascending slope and the other side is a descending slope. The drain line 20 communicates to the drain 12 at the bottom end of the uphill slope or at the bottom end of the downhill slope.
One side of the double-sided slope is an ascending slope, and the other side of the double-sided slope is a descending slope. That is, the longitudinal slope of the tunnel 10 of the overlapping line is designed as a V-slope. The longitudinal slope refers to the slope in the direction in which the tunnel 10 extends on the upper fold line. When the tunnel 10 with the superposed lines is used for urban rail transit, the longitudinal slope is designed to be a V-shaped slope, and a station is usually arranged at the highest point of the double-sided slope, namely the top end of the V-shaped slope, so that the vehicles can conveniently enter and exit. However, the V-shaped slope is designed such that the volume of liquid in the tunnel 10 of the line of uphill remains at the bottom end of the uphill and the bottom end of the downhill, thereby forming a liquid accumulation at the bottom end of the uphill and the bottom end of the downhill. The drain 12 of the tunnel 10 communicating the drain line 20 to the upper line is located at the bottom end of the ascending slope or at the bottom end of the descending slope, so that the accumulated liquid accumulated at the bottom end of the ascending slope or the accumulated liquid accumulated at the bottom end of the descending slope is guided into the drain 12 of the tunnel 10 of the lower line.
It can be understood that the drainage pipeline 20 may be disposed at the bottom end of the ascending slope and the bottom end of the descending slope, respectively, so as to guide the accumulated liquid at the bottom end of the ascending slope and the accumulated liquid at the bottom end of the descending slope into the drainage ditch 12 of the tunnel 10 with the lower line.
In one embodiment, referring to fig. 1 and 2, the superimposed tunnel 10 comprises a settling tank (not shown). The sedimentation tank is communicated with a drainage ditch 12 of the tunnel 10 with the upper line. The sedimentation tank is used for settling silt, sundries and the like in the drainage ditch 12, and the drainage pipeline 20 is prevented from being blocked by the sundries. Further, the settling tank may be provided in plurality along the drainage ditch 12. A plurality of settling ponds are located on both sides of the drain line 20. So that sediment and impurities can be better precipitated and filtered.
In one embodiment, referring to fig. 3 to 5, the drain line 20 includes a drain pipe 21 and a lining pipe 22 disposed inside the drain pipe 21. In this way, the structural strength of the drain pipe 20 can be enhanced by the drain pipe 21, and the effusion flow can be facilitated by the inner liner pipe 22. Illustratively, the drain pipe 21 may be a steel pipe, and the outer wall of the steel pipe may be galvanized to prevent rusting. The lining Pipe 22 may be a polyvinyl chloride Pipe or a CIPP (current-in-Place Pipe) process lining Pipe.
In one embodiment, referring to fig. 1, the number of the drain pipes 20 is two, and two drain pipes 20 are connected in parallel to two tunnels 10. Two drainage pipelines 20 are connected in parallel to communicate two tunnels 10 with the upper and lower overlapping lines, and a transverse ditch can be arranged between the drainage ditch 12 and the two drainage pipelines 20, and the transverse ditch is respectively communicated with the two drainage pipelines 20. In this way, on the one hand, water flows through both the drain lines 20, improving the drainage capacity of the drain lines 20. It is also possible that in use one of the drain lines 20 is open and the other drain line 20 is closed. Thus, the closed drain line 20 can be opened when the drain line 20 through which water is passed needs to be inspected.
It can be understood that, when the water discharge pipelines 20 are respectively arranged at the bottom end of the ascending slope and the bottom end of the descending slope of the tunnel 10 of the superposed line, two water discharge pipelines 20 can be arranged at the bottom end of the ascending slope to be communicated with two tunnels 10 in parallel, and two water discharge pipelines 20 can also be arranged at the bottom end of the descending slope to be communicated with two tunnels 10 in parallel.
In one embodiment, referring to fig. 3-5, the stacked-line tunnel includes a seal assembly 30. The seal assembly 30 includes a seal 31 and a lead seal 32. The sealing member 31 is located between the through hole 11a and the drain line 20, and the sealing member 31 includes a sealing ring 311 covering the drain line 20 and reinforcing ribs 312 located at both sides of the sealing ring 311. Both ends of the seal ring 311 abut against the inner wall of the through hole 11a and the outer wall of the drain pipe 20, respectively. The lead seal 32 is located between the through hole 11a and the drain line 20, and the lead seal 32 is located on the side of the sealing member 31 away from the surrounding rock 100.
The surrounding rock is rock-soil mass which influences the tunnel body within a certain range around the tunnel.
The reinforcing rib 312 is used for reinforcing the structural strength of the sealing ring 311 and preventing the sealing ring 311 from being irregularly deformed. The packing 311 seals a gap between the through hole 11a and the drain pipe 20, and prevents the gap between the through hole 11a and the drain pipe 20 from being a passage for the liquid. The lead seal 32 serves to further enhance the sealing between the through-hole 11a and the drain line 20. Liquid in the tunnel 10 of the upper line or the tunnel 10 of the lower line is prevented from entering between the through hole 11a and the drain line 20.
Specifically, the sealing ring 311 may be a rubber ring. Preferably, the sealing ring 311 is an ethylene propylene diene monomer rubber ring. The sealing ring 311 may be connected to the reinforcing rib 312 by an expansion bolt. The reinforcing ribs can be stainless steel rings.
In one embodiment, referring to fig. 3, the laminated tunnel includes a waterproof layer 40 filled between the through hole 11a and the drain line 20. The waterproof layer 40 is located on the side of the sealing member 31 adjacent to the surrounding rock 100. The waterproof layer 40 serves to prevent groundwater within the surrounding rock from entering between the through hole 11a and the drain line 20. Specifically, the waterproof layer 40 may be formed of a waterproof soft material. The waterproof soft material refers to a flexible material with waterproof performance. Such as asphalt, asphalt rebar, sealants, and the like.
In one embodiment, referring to fig. 3 to 5, the multi-line tunnel includes a fixing member 50 and a filling layer 60, and one end of the fixing member 50 is connected to an inner wall of the drainage pipeline 20. The other end of the fixing member 50 is connected to the lining 11. The filling layer 60 is used to fill the gap between the fixing member 50 and the inner wall of the drain line 20. The filling layer 60 is used to seal the gap between the fixing member 50 and the inner wall of the drain pipe 20, and prevent the gap between the fixing member 50 and the inner wall of the drain pipe 20 from being a liquid flow passage. Specifically, the filling layer 60 may be a sealant, such as a one-component water-swellable sealant. The fixing member 50 serves to securely couple the drain line 20 with the lining 11, preventing the drain line 20 from being moved.
In one embodiment, referring to fig. 3, the overlapping line tunnels comprise elastic members 70 and connecting members 80. The elastic member 70 is located on the side of the fixing member 50 adjacent to the lining 11. The connecting member 80 penetrates the fixing member 50 and the elastic member 70 to fix the fixing member 50 to the lining 11. The elastic member 70 makes the connection between the connection member 80, the fixing member 50 and the lining 11 more stable. Specifically, the connecting member 80 may be an expansion bolt.
In one embodiment, referring to fig. 3 and 5, the stacked-line tunnel includes an insulating layer 90. The insulating layer 90 is provided on the inner wall of the through hole 11a and the outer wall of the drain line 20. The insulation layer 90 is used to avoid electrical leakage, as cables may be arranged or energized in the tunnel 10 of the upper line and/or the tunnel 10 of the lower line. The insulation layer 90 may be provided as an insulation coil, such as an insulation tape, or may be coated with an insulation paint. The thickness of the insulating layer 90 may be 1.5mm to 3mm, for example, 1.5mm, 2mm, 2.5mm, 3 mm.
In the embodiment of the present application, the outer wall of the drain line 20 is the outermost surface of the drain line 20, and the inner wall of the drain line 20 is the innermost surface of the drain line 20. Illustratively, when the drain line 20 includes a drain pipe 21 and a liner pipe 22 disposed within the drain pipe 21, the outer wall of the drain line 20 refers to the outer surface of the drain pipe 21 and the inner wall of the drain line 20 refers to the inner surface of the liner pipe 22. When the drain line 20 includes only the drain pipe 21, the outer wall of the drain line 20 refers to the outer surface of the drain pipe 21, and the inner wall of the drain line 20 refers to the inner surface of the drain pipe 21. The lining 11 may be the lining 11 of the tunnel 10 of the upper line, or may be the lining 11 of the tunnel 10 of the lower line. The through hole 11a may be a through hole 11a of the tunnel 10 stacked on the upper layer, or may be a through hole 11a of the tunnel 10 stacked on the lower layer. The position of the drainage ditch 12 in the tunnel 10 in the embodiment of the present application is not limited. For example, the gutter 12 of the tunnel 10 in the upper course may be located at the center of the tunnel 10. In this way, the liquid in the superimposed tunnel 10 is facilitated to be collected in the drainage ditch 12. The drain 12 of the tunnel 10 of the lower line may be provided along the inner wall of the tunnel 10 so that the drain line 20 is in communication with the drain 12 of the tunnel 10 of the lower line.
The tunnel 10 of the overlapping line and the tunnel 10 of the underlaying line in the overlapping line tunnel provided by the embodiment of the application include, but are not limited to, a shield tunnel and a mine tunnel. When the tunnels 10 of the upper line and the tunnels 10 of the lower line are shield tunnels, the through holes 11a may be formed in the modular segment. Because the construction of the shield tunnel is carried out while grouting and reinforcing the segments, after the segments are assembled to form a lining, the segments of the standard block are selected, segment concrete in the opening range is broken by static force, and then a down-the-hole drill is used for forming a drain hole for arranging the drainage pipeline 20. When the tunnel 10 of the upper line and the tunnel 10 of the lower line are mine-method tunnels, the through-holes 11a may be reserved when the lining 11 is constructed. Of course, the through holes 11a may be directly formed in the built tunnel 10 of the upper line and the built tunnel 10 of the lower line, and the method of forming the through holes 11a may be to statically break the concrete of the lining 11 in the opening range, and then use a down-the-hole drill to form a drain hole for arranging the drain pipeline 20.
The various embodiments/implementations provided herein may be combined with each other without contradiction. The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A superimposed tunnel is characterized by comprising two tunnels superimposed by lines and a drainage pipeline communicated with the two tunnels; the projections of the two tunnels in the horizontal direction are not overlapped with the projections of the two tunnels in the vertical direction; each tunnel comprises a lining with a through hole and drainage ditches arranged longitudinally along the tunnel; two through-holes in tunnel and intercommunication are corresponding the escape canal is run through respectively at drainage tube's both ends to with the upper string the tunnel the hydrops in the escape canal drainage to the lower string in the escape canal in the tunnel.
2. A multi-line tunnel according to claim 1, wherein the clear distance between two of the tunnels is less than or equal to 20 m.
3. A laminated line tunnel according to claim 1, wherein the longitudinal slopes of the tunnel of the superposed lines are designed as double-sided slopes, one side of the double-sided slope is an ascending slope, the other side of the double-sided slope is a descending slope, and the drainage pipeline is communicated to the drainage ditch at the bottom end of the ascending slope or at the bottom end of the descending slope.
4. A stacked line tunnel according to claim 1, wherein the tunnel of a stacked line includes a settling tank communicating with the drainage gutter of the tunnel of a stacked line.
5. The superimposed tunnel according to claim 1, wherein the drain line comprises a drain pipe and an inner liner pipe disposed within the drain pipe;
and/or the number of the drainage pipelines is two, and the two drainage pipelines are communicated with the two tunnels in parallel.
6. A superimposed tunnel according to any of claims 1 to 5, wherein the superimposed tunnel comprises a sealing assembly comprising:
the sealing element is positioned between the through hole and the drainage pipeline and comprises a sealing ring sleeved outside the drainage pipeline and reinforcing ribs positioned on two sides of the sealing ring, and two ends of the sealing ring are respectively abutted against the inner wall of the through hole and the outer wall of the drainage pipeline;
and the lead sealing layer is positioned between the through hole and the drainage pipeline and positioned on one side, far away from the surrounding rock, of the sealing piece.
7. A superimposed tunnel according to claim 6, wherein the superimposed tunnel includes a waterproof layer filled between the through-hole and the drainage pipe, the waterproof layer being located on a side of the sealing member adjacent to the surrounding rock.
8. A superimposed tunnel according to any one of claims 1 to 5, wherein the superimposed tunnel comprises:
one end of the fixing piece is connected with the inner wall of the drainage pipeline, and the other end of the fixing piece is connected with the lining;
and the filling layer is used for filling the gap between the fixing piece and the inner wall of the drainage pipeline.
9. A superimposed tunnel according to claim 8, wherein the superimposed tunnel comprises:
the elastic piece is positioned on one side of the fixing piece close to the lining;
and a connecting member penetrating the fixing member and the elastic member to fix the fixing member to the lining.
10. A laminated line tunnel according to any one of claims 1 to 5, wherein the laminated line tunnel comprises an insulating layer provided on the inner wall of the through hole and the outer wall of the drainage duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911206597.4A CN110952992A (en) | 2019-11-29 | 2019-11-29 | Superimposed line tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911206597.4A CN110952992A (en) | 2019-11-29 | 2019-11-29 | Superimposed line tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN110952992A true CN110952992A (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911206597.4A Pending CN110952992A (en) | 2019-11-29 | 2019-11-29 | Superimposed line tunnel |
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| CN (1) | CN110952992A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605923A (en) * | 2021-09-18 | 2021-11-05 | 中铁第六勘察设计院集团有限公司 | Subway laminated line interval tunnel connection channel structure and construction method |
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