CN115075875A - Interval drainage pump station of track traffic - Google Patents
Interval drainage pump station of track traffic Download PDFInfo
- Publication number
- CN115075875A CN115075875A CN202210860985.XA CN202210860985A CN115075875A CN 115075875 A CN115075875 A CN 115075875A CN 202210860985 A CN202210860985 A CN 202210860985A CN 115075875 A CN115075875 A CN 115075875A
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- submersible pump
- water collecting
- pump
- main pipe
- tunnel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 238000005086 pumping Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 230000009189 diving Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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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)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of rail transit, and discloses a rail transit interval drainage pump station, which comprises: the first pressure drainage main pipe is arranged in the tunnel between the left lines; the second pressure drainage main pipe is arranged in the right line inter-zone tunnel; the ballast bed water collecting ditch is arranged inside a ballast bed, and at least two submersible pump sets are arranged in the ballast bed water collecting ditch; and one part of the at least two submersible pump units is connected in parallel to one of the first pressure drainage main pipe and the second pressure drainage main pipe, and the other part of the at least two submersible pump units is connected in parallel and crosses a communication channel between the left line inter-zone tunnel and the right line inter-zone tunnel to be connected to the other one of the first pressure drainage main pipe and the second pressure drainage main pipe. The invention can effectively reduce the flow of each submersible pump in the submersible pump set, reduce the effective volume of the required water collecting ditch, reduce the influence on the track bed structure, improve the transverse stability of the whole track bed and strengthen the safety and reliability of drainage.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a rail transit interval drainage pump station.
Background
According to the requirements of safe evacuation, a communication channel is arranged between two single-line interval tunnels of the rail transit. The vertical section of the tunnel in the conventional interval adopts a V-shaped slope, and a drainage pump station is required to be arranged at the lowest point of the interval. Traditional drainage pump station and the regional contact passageway of section are built jointly, excavate the pump station in contact passageway below. And other technical schemes are required to be adopted for the sections with complex engineering conditions and large construction risk of the excavation pump station.
At present, a built-in sump of a track bed is generally independently arranged in each single-line section, a group of (two) submersible pumps are arranged in the sump, and the two submersible pumps are connected in parallel to adjacent stations and are arranged outdoors. However, in the arrangement mode of the pump station, the sump needs at least 5m 3 The effective volume of (a). The bed built-in sump can only utilize the space between the bed and the tunnel structure, resulting in a limited depth of the sump. Meanwhile, the submersible pump equipment has the lowest pump stopping water level, so that the effective depth of the sump is further reduced. In order to meet the requirements of an effective volume required by a submersible pump and a height required by the installation of the water pump, at present, the height and the effective volume of a sump are generally increased by arranging special steel pipe sheets at the installation position of the submersible pump; or the length of the water collecting pit is increased to more than 20m, so that the requirement of effective volume is met. However, the concrete pipe piece which is provided with the special steel pipe piece and needs the water pump installation position is changed into the steel pipe piece, and the steel pipe piece has water accumulation for a long time, so that the corrosion risk is large; increasing the sump length will affect the overall track bed lateral stability.
Disclosure of Invention
The invention provides a drainage pump station for a track traffic section, which aims to solve the problems that the steel pipe sheet at the installation position of a water pump is easy to corrode and the transverse stability of an integral track bed is influenced because the effective volume of a sump is increased by arranging a special steel pipe sheet or increasing the length of the sump.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a rail transit interval drainage pump station, which comprises:
a first pressure drainage main pipe arranged in the left line inter-zone tunnel;
a second main pressure drain pipe arranged in the right inter-zone tunnel;
the ballast bed water collecting channel is arranged inside a ballast bed, and at least two submersible pump sets are arranged in the ballast bed water collecting channel; and one part of at least two submersible pump units is connected in parallel to one of the first pressure drainage main pipe and the second pressure drainage main pipe, and the other part of at least two submersible pump units is connected in parallel and crosses a communication channel between the left line inter-zone tunnel and the right line inter-zone tunnel to be connected to the other one of the first pressure drainage main pipe and the second pressure drainage main pipe.
Preferably, each submersible pump group comprises at least two submersible pumps, and each submersible pump in the same submersible pump group is arranged in parallel.
Preferably, be provided with two dive pump package in the ballast bed catch water ditch, every dive pump package includes two immersible pumps, the flow of dive pump is 10m 3 /h。
Preferably, the track bed catchment ditch is arranged at the central position of the track bed.
Preferably, a water pump pit is arranged in the ballast bed water collecting ditch, and the elevation of the bottom surface of the water pump pit is lower than that of the ballast bed water collecting ditch.
Preferably, the bottom surface of the water pump pit is flush with the surface of the shield segment of the left line interval tunnel or the right line interval tunnel.
Preferably, the ballast bed catchment ditch is provided at the lowest point section of the left line inter-section tunnel or the right line inter-section tunnel.
Preferably, the two ends of the ballast bed catchment ditch are respectively connected with a transverse ditch.
Compared with the prior art, the rail transit interval drainage pump station has the beneficial effects that:
according to the track traffic interval drainage pump station provided by the embodiment of the invention, at least two submersible pump sets are arranged in each track bed water collecting ditch, one part of the submersible pump sets are connected to one of the first pressure drainage main pipe and the second pressure drainage main pipe in parallel, and the other part of the submersible pump sets are connected to the other one of the first pressure drainage main pipe and the second pressure drainage main pipe in parallel and cross the communication channel. Because the flow of immersible pump reduces, its equipment size reduces and is favorable to installing in narrow and small railway roadbed catch basin, can not set up special steel pipe piece. The effective volume of the water collecting channel is reduced, the setting length of the water collecting channel is reduced, the influence on the track bed structure is reduced, and the transverse stability of the whole track bed is improved. On the other hand, the diving pump set in the single-line interval tunnel is respectively connected with the first pressure drainage main pipe and the second pressure drainage main pipe, so that the safety and reliability of drainage can be enhanced.
Drawings
FIG. 1 is a schematic plan view of a drainage pumping station in a rail transit area according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of a drainage pumping station in a rail transit section according to an embodiment of the invention;
in the figure, 10, the tunnel between the left lines; 20. a right line inter-zone tunnel; 30. a ballast bed; 40. a shield segment; 50. a communication channel;
1. a first pressure drain main pipe; 2. a second pressure drain main pipe; 3. a ballast bed water collecting ditch; 31. a water pump pit; 4. a first submersible pump unit; 41. a first submersible pump; 42. a second submersible pump; 5. a second submersible pump unit; 51. a third submersible pump; 52. a fourth submersible pump; 6. a third submersible pump unit; 61. a fifth submersible pump; 62. a sixth submersible pump; 7. a fourth submersible pump group; 71. a seventh submersible pump; 72. an eighth submersible pump; 8. transverse to the trench.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, the drainage pump station for the rail transit sections according to the embodiment of the present invention includes a first main pressure drainage pipe 1, a second main pressure drainage pipe 2, and a ballast bed water collecting trench 3, wherein the first main pressure drainage pipe 1 is arranged in a left line section tunnel 10; the second pressure drainage main pipe 2 is arranged in a right line inter-zone tunnel 20 adjacent to the left line inter-zone tunnel 10, and a communication channel 50 is arranged between the left line inter-zone tunnel 10 and the right line inter-zone tunnel 20; a ballast bed water collecting channel 3 is respectively arranged in the left line inter-zone tunnel 10 and the right line inter-zone tunnel 20, the ballast bed water collecting channel 3 is arranged in a ballast bed 30, and at least two submersible pump sets are arranged in the ballast bed water collecting channel 3; a part of at least two submersible pump units is connected in parallel to one of the first main pressure drainage pipe 1 and the second main pressure drainage pipe 2, and the other part of at least two submersible pump units is connected in parallel and crosses a communication channel 50 between the left line inter-zone tunnel 10 and the right line inter-zone tunnel 20 to the other one of the first main pressure drainage pipe 1 and the second main pressure drainage pipe 2. Accumulated water in the tunnel 10 between the left lines can be discharged through the first pressure water discharge main pipe 1 and the second pressure water discharge main pipe 2 respectively; the accumulated water in the right line inter-section tunnel 20 can be discharged through the first pressure main water discharge pipe 1 and the second pressure main water discharge pipe 2 respectively. The first pressure drainage main pipe 1 and the second pressure drainage main pipe 2 are both connected to a main wastewater pond outside the track traffic interval.
According to the invention, at least two submersible pump sets are arranged in one ballast bed water collecting ditch 3, and the submersible pump sets in the same ballast bed water collecting ditch 3 are arranged in a crossed manner with the first pressure drainage main pipe 1 and the second pressure drainage main pipe 2, so that on one hand, the flow of each submersible pump in the submersible pump sets can be effectively reduced, and the effective volume of the required water collecting ditch is reduced. Because the flow of immersible pump reduces, its equipment size reduces and is favorable to installing in narrow and small railway roadbed catch basin, can not set up special steel pipe piece. The effective volume of the water collecting channel is reduced, the setting length of the water collecting channel is reduced, the influence on the track bed structure is reduced, and the transverse stability of the whole track bed is improved. On the other hand, the diving pump set in the single-line interval tunnel is respectively connected with the first pressure drainage main pipe and the second pressure drainage main pipe, so that the safety and reliability of drainage can be enhanced.
Preferably, each submersible pump group comprises at least two submersible pumps, and each submersible pump in the same submersible pump group is arranged in parallel. When one or more of the submersible pumps in the same submersible pump group are in a starting use state, other submersible pumps in the same submersible pump group are in a standby state. It should be noted that the submersible pumps in the same submersible pump group can be simultaneously in the starting and using state.
In this embodiment, the track bed water collecting channel 3 is disposed at the center of the track bed 30 and at the lowest point of the shield segments 40 for collecting water. Further, be provided with the water pump hole 31 that is used for installing the immersible pump in the railway roadbed catch basin 3, a plurality of water pump holes 31 interval arrangement, the bottom surface elevation of water pump hole 31 is less than the bottom surface elevation of railway roadbed catch basin 3.
In this embodiment, the bottom surface of the water pump pit 31 is flush with the surface of the shield segment 40 of the left line inter-segment tunnel 10 or the right line inter-segment tunnel 20. Further, the bottom surface of the ballast bed water collecting channel 3 is about 150mm higher than the bottom surface of the water pump pit 31.
In this embodiment, the ballast bed water collecting trench 3 is disposed in the lowest point section of the left line inter-tunnel 10 or the right line inter-tunnel 20. Furthermore, two ends of the track bed water collecting ditch 3 are respectively connected with a cross ditch 8.
In this embodiment, two submersible pump sets are arranged in the ballast bed water collecting channel 3, each submersible pump set comprises two submersible pumps, and the flow of each submersible pump is 10m 3 H is used as the reference value. Flow rate of 20m compared to a conventional submersible pump 3 The flow of the submersible pump can be reduced by 50%, the effective volume of the water collecting ditch is reduced by 50%, and the effective volume of the water collecting pit is from 5m 3 Reduced to 2.5m 3 And the influence of the water collecting channel on the overall structure of the track bed is reduced.
In particular, the two submersible pump units in the track bed gully 3 in the left-hand line inter-zone tunnel 10 are respectively denoted by a first submersible pump unit 4 and a second submersible pump unit 5, and the two submersible pump units in the track bed gully 3 in the right-hand line inter-zone tunnel 20 are respectively denoted by a third submersible pump unit 6 and a fourth submersible pump unit 7. The first submersible pump group 4 is provided with a first submersible pump 41 and a second submersible pump 42 in parallel, the second submersible pump group 5 is provided with a third submersible pump 51 and a fourth submersible pump 52 in parallel, the third submersible pump group 6 is provided with a fifth submersible pump 61 and a sixth submersible pump 62 in parallel, and the fourth submersible pump group 7 is provided with a seventh submersible pump 71 and an eighth submersible pump 72 in parallel. The first submersible pump 41, the second submersible pump 42, the seventh submersible pump 71 and the eighth submersible pump 72 are connected to the first pressure drainage main pipe 1 in parallel, and the third submersible pump 51, the fourth submersible pump 52, the fifth submersible pump 61 and the sixth submersible pump 62 are connected to the second pressure drainage main pipe 2 in parallel.
When the ballast water pump is used, two submersible pump sets in the same ballast water collecting channel 3 are sequentially started, and two submersible pumps in the same submersible pump set are used for standby and are simultaneously started when necessary. Normally, two submersible pump sets in the same ballast bed water collection trench 3 are not started at the same time. For example, depending on the desired treatment water flow rate, any one of the submersible pumps in the first submersible pump group 4 and any one of the submersible pumps in the third submersible pump group 6 may be switched on; or to switch on two submersible pumps in the first submersible pump group 4 and two submersible pumps in the third submersible pump group 6. In the case of fire water, the four submersible pumps in the first submersible pump group, the second submersible pump group and any one submersible pump in the third submersible pump group or the fourth submersible pump group can be started. Or may activate the four submersible pumps in the third submersible pump group, the fourth submersible pump group, and any one submersible pump in the first submersible pump group.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a rail transit is drainage pump station between sections which characterized in that includes:
a first pressure drain main pipe arranged in the left line inter-zone tunnel;
a second main pressure drain pipe arranged in the right inter-zone tunnel;
the ballast bed water collecting channel is arranged inside a ballast bed, and at least two submersible pump sets are arranged in the ballast bed water collecting channel; and one part of the at least two submersible pump units is connected to one of the first pressure drainage main pipe and the second pressure drainage main pipe in parallel, and the other part of the at least two submersible pump units is connected in parallel, crosses a communication channel between the left line inter-zone tunnel and the right line inter-zone tunnel, and is connected to the other one of the first pressure drainage main pipe and the second pressure drainage main pipe.
2. The track traffic interval drainage pump station according to claim 1, characterized in that each submersible pump group comprises at least two submersible pumps, and each submersible pump in the same submersible pump group is arranged in parallel.
3. The rail transit regional drainage pump station according to claim 2, characterized in that two submersible pump sets are arranged in the water collecting ditch of the ballast bed, each submersible pump set comprises two submersible pumps, and the flow rate of each submersible pump is 10m 3 /h。
4. The track traffic interval drainage pumping station according to claim 1, characterized in that the track bed water collecting ditch is arranged at the central position of the track bed.
5. The rail transit regional drainage pump station according to claim 4, wherein a water pump pit is arranged in the ballast bed water collecting ditch, and the elevation of the bottom surface of the water pump pit is lower than that of the ballast bed water collecting ditch.
6. The track traffic interval drainage pump station according to claim 5, wherein the bottom surface of the water pump pit is flush with the surface of a shield segment of the left line interval tunnel or the right line interval tunnel.
7. The track traffic interval drainage pumping station according to claim 1, wherein the track bed water collecting ditch is arranged at the lowest point section of the left line interval tunnel or the right line interval tunnel.
8. The track traffic interval drainage pump station according to claim 7, wherein two ends of the track bed water collecting ditch are respectively connected with a transverse ditch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210860985.XA CN115075875A (en) | 2022-07-21 | 2022-07-21 | Interval drainage pump station of track traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210860985.XA CN115075875A (en) | 2022-07-21 | 2022-07-21 | Interval drainage pump station of track traffic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115075875A true CN115075875A (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210860985.XA Pending CN115075875A (en) | 2022-07-21 | 2022-07-21 | Interval drainage pump station of track traffic |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202402076U (en) * | 2011-12-08 | 2012-08-29 | 铁道第三勘察设计院集团有限公司 | Drainage pump station for underground line intervals of rail traffic |
| CN203796321U (en) * | 2014-04-21 | 2014-08-27 | 中铁第一勘察设计院集团有限公司 | Balanced drain system in tunnel |
| CN208203348U (en) * | 2018-03-07 | 2018-12-07 | 广州地铁设计研究院有限公司 | A kind of drainage pumping plant of shield tunnel |
| CN113175351A (en) * | 2021-05-27 | 2021-07-27 | 上海市政工程设计研究总院（集团）有限公司 | Intensive waste water pump room arrangement and drainage system of double-hole long tunnel |
| CN113482715A (en) * | 2021-08-18 | 2021-10-08 | 中铁二院华东勘察设计有限责任公司 | Roadbed drainage pump station suitable for underground intervals of rail transit |
| CN215329049U (en) * | 2021-08-05 | 2021-12-28 | 中铁二院工程集团有限责任公司 | Track structure with drainage pump station in integral ballast bed |
-
2022
- 2022-07-21 CN CN202210860985.XA patent/CN115075875A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202402076U (en) * | 2011-12-08 | 2012-08-29 | 铁道第三勘察设计院集团有限公司 | Drainage pump station for underground line intervals of rail traffic |
| CN203796321U (en) * | 2014-04-21 | 2014-08-27 | 中铁第一勘察设计院集团有限公司 | Balanced drain system in tunnel |
| CN208203348U (en) * | 2018-03-07 | 2018-12-07 | 广州地铁设计研究院有限公司 | A kind of drainage pumping plant of shield tunnel |
| CN113175351A (en) * | 2021-05-27 | 2021-07-27 | 上海市政工程设计研究总院（集团）有限公司 | Intensive waste water pump room arrangement and drainage system of double-hole long tunnel |
| CN215329049U (en) * | 2021-08-05 | 2021-12-28 | 中铁二院工程集团有限责任公司 | Track structure with drainage pump station in integral ballast bed |
| CN113482715A (en) * | 2021-08-18 | 2021-10-08 | 中铁二院华东勘察设计有限责任公司 | Roadbed drainage pump station suitable for underground intervals of rail transit |
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