CN111894647A - Ventilation method without air shaft in large shield subway station range - Google Patents
Ventilation method without air shaft in large shield subway station range Download PDFInfo
- Publication number
- CN111894647A CN111894647A CN202010676300.7A CN202010676300A CN111894647A CN 111894647 A CN111894647 A CN 111894647A CN 202010676300 A CN202010676300 A CN 202010676300A CN 111894647 A CN111894647 A CN 111894647A
- Authority
- CN
- China
- Prior art keywords
- station
- large shield
- layer
- shield
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000779 smoke Substances 0.000 claims abstract description 29
- 238000010276 construction Methods 0.000 abstract description 8
- 238000009412 basement excavation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Images
Classifications
-
- 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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/003—Ventilation of traffic tunnels
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Ventilation (AREA)
Abstract
The invention relates to a ventilation method without an air shaft in a large shield subway station range, which relates to the technical field of subway large shields, wherein the large shield subway station range is combined with a large shield station form and is arranged into an upper station hall layer and a lower station layer; big shield equipment sections are arranged at two ends of a public section in a big shield station range, a big shield section is arranged outside the big shield station range, a second underground layer of the big shield section is arranged as a big shield lower-layer section tunnel, a first underground layer is arranged as an independent big shield upper-layer civil engineering smoke exhaust air channel, and a smoke exhaust fan and an air valve are arranged in the big shield upper-layer civil engineering smoke exhaust air channel; and a tunnel ventilation air shaft is arranged in the open cut shaft section outside the large shield range, a tunnel fan and an air valve are arranged in the tunnel ventilation air shaft, and a piston air shaft is arranged on the ground. The problem of big shield structure station within range ventilation air shaft setting is solved, go out the ground air shaft and combine whole circuit ground condition preferred setting, can effectually improve the engineering feasibility of constructing the station by the big shield, reduce the whole line and remove, practiced thrift the engineering construction cost.
Description
Technical Field
The invention relates to the technical field of subway large shields, in particular to a ventilation method without an air shaft in the range of a large shield subway station.
Background
At present, subway stations in China are mainly built by means of open excavation, underground excavation, open excavation combination and the like, sections are mainly implemented by means of underground excavation and small shields with the diameter of 7m or less, the periphery of the subway stations is mostly populated and building dense areas, ground traffic flow is often large, and difficulties of traffic dispersion, pipeline migration, house removal and the like mainly exist in the building process.
The subway mainly adopts a smoke exhaust mode of station key smoke exhaust plus interval longitudinal smoke exhaust, the air shaft is arranged at the periphery of the subway station, generally in a densely populated area and a building area, large-area removal is often caused to meet the environment evaluation requirements of the air shaft, projects are difficult to advance, and the arrangement of the air shaft of the subway also becomes a pain point and a difficulty point in the subway construction process.
Based on the technical scheme, at present, research and development and practice of a large shield subway station are actively promoted in China, the number of pain points of subway construction such as subway construction pipeline moving and changing, traffic dispersion and building removal can be effectively reduced, but the conventional subway smoke exhausting mode is not suitable for the large shield subway station, the problem of matched ventilation shaft moving and constructing in the range of the subway station cannot be effectively solved, and the application of the large shield in the subway station construction is limited to a certain extent.
Disclosure of Invention
The invention aims to provide a ventilation method which is reasonable in design and does not have an air shaft in the range of a large shield subway station, solves the problem of arrangement of the ventilation air shaft in the range of the large shield subway station, and can effectively improve the engineering feasibility of the large shield subway station, reduce the whole line removal and save the engineering construction cost by combining the ground air shaft of the whole line with the optimal arrangement of the ground conditions of the whole line.
In order to achieve the purpose, the invention adopts the following technical scheme: the operation steps are as follows:
step one, combining a large shield station form in a station range, setting the station form into an upper station hall layer and a lower station layer, and combining and setting a fresh air duct through an inlet and an outlet to introduce fresh air;
step two, arranging large shield equipment sections at two ends of a public section in a large shield station range, wherein a large shield section is arranged outside the large shield station range, two underground layers of the large shield section are arranged as large shield lower-layer section tunnels, one underground layer is arranged as an independent large shield upper-layer civil engineering smoke exhaust duct, a smoke exhaust fan and an air valve are arranged in the large shield upper-layer civil engineering smoke exhaust duct, one end of the large shield upper-layer civil engineering smoke exhaust duct is connected with a smoke exhaust duct in the large shield equipment section, and the other end of the large shield upper-layer civil engineering smoke exhaust duct is connected with an air exhaust well in an open-cut vertical well section;
and step three, arranging a tunnel ventilation air shaft in the open cut shaft section outside the large shield range, arranging a tunnel fan and an air valve in the tunnel ventilation air shaft, and arranging a piston air shaft on the ground.
After the method is adopted, the invention has the beneficial effects that: the invention provides a ventilation method without an air shaft in the range of a large shield subway station, which solves the problem of arrangement of the ventilation air shaft in the range of the large shield subway station, and the air shaft out of the ground is preferentially arranged by combining the ground conditions of the whole line, so that the engineering feasibility of the large shield station can be effectively improved, the whole line removal is reduced, and the engineering construction cost is saved.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Description of reference numerals:
the station hall layer 1 and the station platform layer 2 are connected through an access 3, a civil engineering smoke exhaust duct 4 on the upper layer of the large shield, a section tunnel 5 on the lower layer of the large shield, an air valve 6, an exhaust well 7, a piston air shaft 8, a tunnel ventilation air shaft 9, a public section A in the station range of the large shield, a section B of large shield equipment, a section C of the large shield and an open cut vertical shaft section D.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the following technical solutions are adopted in the present embodiment: the operation steps are as follows:
step one, combining a large shield station form in a station range, setting the station range as an upper station hall layer 1 and a lower station layer 2, and combining and setting a fresh air duct through an inlet and an outlet 3 to introduce fresh air;
step two, large shield equipment sections B are arranged at two ends of a public section A in a large shield station range, a large shield interval section C is arranged outside the large shield station range, a second underground layer of the large shield interval section C is arranged as a large shield lower-layer interval tunnel 5, a first underground layer is arranged as an independent large shield upper-layer civil engineering smoke exhaust air channel 4, a smoke exhaust fan and an air valve are arranged in the large shield upper-layer civil engineering smoke exhaust air channel 4, one end of the large shield upper-layer civil engineering smoke exhaust air channel 4 is connected with a smoke exhaust channel in the large shield equipment section B, the other end of the large shield upper-layer civil engineering smoke exhaust air channel 4 is connected with an air exhaust well 7 in an open-cut shaft section D, and the problems of ventilation and smoke exhaust air well arrangement of stations in the large shield subway.
And step three, arranging a tunnel ventilation air shaft 9 in the open-cut shaft section D outside the large shield range, arranging a tunnel fan and an air valve 6 in the tunnel ventilation air shaft 9, discharging smoke mainly in case of fire, and arranging a piston air shaft 8 on the ground, so that the problems of tunnel ventilation and tunnel smoke discharge air shaft arrangement in the large shield subway station range are solved.
After the method is adopted, the beneficial effects of the specific embodiment are as follows: the specific embodiment provides a ventilation method without an air shaft in the range of a large shield subway station, the problem of arrangement of the ventilation air shaft in the range of the large shield subway station is solved, the air shaft out of the ground is combined with the ground condition preferred arrangement of the whole line, the engineering feasibility of the large shield station can be effectively improved, the whole line removal is reduced, and the engineering construction cost is saved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (1)
1. A ventilation method without an air shaft in the range of a large shield subway station is characterized in that: the operation steps are as follows:
combining a large shield station form in a station range, setting the station form into an upper station hall layer (1) and a lower station layer (2), and combining and setting a fresh air duct through an inlet and an outlet (3) to introduce fresh air;
step two, arranging large shield equipment sections (B) at two ends of a public section (A) in a large shield station range, arranging a large shield section (C) outside the large shield station range, arranging a large shield lower-layer interval tunnel (5) in an underground two-layer mode of the large shield section (C), arranging an underground one-layer civil engineering smoke exhaust duct (4) on an independent large shield upper layer, arranging a smoke exhaust fan and an air valve in the large shield upper-layer civil engineering smoke exhaust duct (4), connecting one end of the large shield upper-layer civil engineering smoke exhaust duct (4) with a smoke exhaust duct in the large shield equipment section (B), and connecting the other end of the large shield upper-layer civil engineering smoke exhaust duct (4) with an air exhaust well (7) in an open-cut vertical well section (D); and step (III), arranging a tunnel ventilation air shaft (9) in the open cut shaft section (D) outside the large shield range, arranging a tunnel fan and an air valve (6) in the tunnel ventilation air shaft (9), and arranging a piston air shaft (8) on the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010676300.7A CN111894647A (en) | 2020-07-14 | 2020-07-14 | Ventilation method without air shaft in large shield subway station range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010676300.7A CN111894647A (en) | 2020-07-14 | 2020-07-14 | Ventilation method without air shaft in large shield subway station range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111894647A true CN111894647A (en) | 2020-11-06 |
Family
ID=73192682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010676300.7A Pending CN111894647A (en) | 2020-07-14 | 2020-07-14 | Ventilation method without air shaft in large shield subway station range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111894647A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120012059A (en) * | 2010-07-30 | 2012-02-09 | (주)범창종합기술 | Ventilation structure for shield tunnel and controlling method thereof |
| CN102720519A (en) * | 2012-06-21 | 2012-10-10 | 广州地铁设计研究院有限公司 | Novel tunnel ventilation system for subway station |
| CN106168140A (en) * | 2016-08-19 | 2016-11-30 | 中铁隧道勘测设计院有限公司 | Single tube levels municipal administration under water and highway are grown up shield tunnel ventilating system and method |
| CN108412500A (en) * | 2018-02-08 | 2018-08-17 | 中铁二院工程集团有限责任公司 | Mountainous City Underground Subway Station vented construction and its construction method |
| CN208122886U (en) * | 2018-01-31 | 2018-11-20 | 广州地铁设计研究院有限公司 | A kind of Tunnel Ventilation System of subway station |
| CN110273688A (en) * | 2019-06-21 | 2019-09-24 | 上海市隧道工程轨道交通设计研究院 | Build the construction arrangement method in station section jointly based on shield method subway and road tunnel |
-
2020
- 2020-07-14 CN CN202010676300.7A patent/CN111894647A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120012059A (en) * | 2010-07-30 | 2012-02-09 | (주)범창종합기술 | Ventilation structure for shield tunnel and controlling method thereof |
| CN102720519A (en) * | 2012-06-21 | 2012-10-10 | 广州地铁设计研究院有限公司 | Novel tunnel ventilation system for subway station |
| CN106168140A (en) * | 2016-08-19 | 2016-11-30 | 中铁隧道勘测设计院有限公司 | Single tube levels municipal administration under water and highway are grown up shield tunnel ventilating system and method |
| CN208122886U (en) * | 2018-01-31 | 2018-11-20 | 广州地铁设计研究院有限公司 | A kind of Tunnel Ventilation System of subway station |
| CN108412500A (en) * | 2018-02-08 | 2018-08-17 | 中铁二院工程集团有限责任公司 | Mountainous City Underground Subway Station vented construction and its construction method |
| CN110273688A (en) * | 2019-06-21 | 2019-09-24 | 上海市隧道工程轨道交通设计研究院 | Build the construction arrangement method in station section jointly based on shield method subway and road tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106593508A (en) | Plateau high-gas extra long separating type tunnel construction ventilation method | |
| CN109707395B (en) | Double-layer shield tunnel with upper and lower layer discharge flues and discharge flue setting method | |
| CN108756990B (en) | Metro detour ventilation system with shielding door and operation method thereof | |
| CN111894647A (en) | Ventilation method without air shaft in large shield subway station range | |
| CN211008711U (en) | Novel water sump capable of achieving independent ventilation in underground coal mine | |
| CN112049649A (en) | Subway station with existing tunnel striding upwards and construction method thereof | |
| CN112761704B (en) | Dust removing method and device for ground horizontal well of coal mine tunnel tunneling working face | |
| CN207485459U (en) | It is a kind of can rapid build local air return system | |
| CN107355249A (en) | The natural ventilation system and method for traffic tunnel, subway or underground construction tunnel | |
| CN212225294U (en) | Assembled special-shaped air duct for long-distance tunnel construction ventilation | |
| CN210163939U (en) | Air discharge and intake system for pressure flow sewage pipeline in comprehensive pipe gallery | |
| CN113266414A (en) | Coal roadway tunneling gas control and ventilation method based on large-diameter directional drilling | |
| CN214089971U (en) | Water and electricity engineering high tension cable outlet hole export section arrangement structure | |
| CN113089705A (en) | Underground cavern drainage system | |
| CN210562294U (en) | Underground structure of open cut tunnel and piping lane built jointly | |
| CN218716936U (en) | Permanent ventilation system for underground plant chamber group | |
| CN219868311U (en) | Exhaust and smoke exhaust structure suitable for underground factory building of pumped storage power station | |
| CN214464325U (en) | Ventilation system for underground cavern group in construction period | |
| CN211598722U (en) | Urban road tunnel pollutant dispersion discharging equipment | |
| CN104564121A (en) | Achievement method of internal air purifying system of mountain tunnel | |
| CN212535664U (en) | Flow logging structure | |
| CN218542301U (en) | Tunnel suspension type air purification and key intensive system of discharging fume | |
| CN215672318U (en) | Deep long-distance single-head tunnel tunneling relay ventilation cooling system | |
| CN215857559U (en) | Underground factory building tail water surge-chamber traffic hole concurrently serves as safety exit structure | |
| CN115637982A (en) | Arrangement method for mechanical method vertical tunneling subway piston air shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201106 |
|
| RJ01 | Rejection of invention patent application after publication |