CN110700851A - Single-hole double-line jet fan tunnel section based on urban D-type vehicle clearance design - Google Patents
Single-hole double-line jet fan tunnel section based on urban D-type vehicle clearance design Download PDFInfo
- Publication number
- CN110700851A CN110700851A CN201910974326.7A CN201910974326A CN110700851A CN 110700851 A CN110700851 A CN 110700851A CN 201910974326 A CN201910974326 A CN 201910974326A CN 110700851 A CN110700851 A CN 110700851A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- arc surface
- line
- jet flow
- type vehicle
- 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
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention discloses a tunnel section structure of a single-hole double-line jet fan based on a municipal D-type vehicle clearance design, wherein the tunnel section structure comprises the following components in parts by weight: the section of the tunnel consists of eight circular arcs in all, the tunnel is a single hole, a double-line track is arranged in the tunnel, and a middle partition wall is arranged in the middle of the tunnel; the evacuation platform and the jet flow fans are arranged on two sides of the middle partition wall, and the left jet flow fan and the right jet flow fan are arranged at the same height in a longitudinally staggered mode; the inside of the tunnel is provided with a track structure and D-type vehicles in the city area from bottom to top in sequence. According to the scheme, various requirements such as vehicle limitation, building limitation, structural arrangement, equipment installation and personnel evacuation are fully considered, the requirement of train driving safety is met, the interference of trains and buildings and equipment is avoided, the problem of overrun cannot be caused in the driving process of the vehicles is reasonably and effectively guaranteed, the cross-sectional area of the tunnel is reduced, and the engineering investment is reduced.
Description
Technical Field
The invention belongs to the field of urban railway tunnels, and particularly relates to a single-hole double-line jet fan tunnel section structure based on urban D-type vehicle clearance design.
Background
The jet fan is a special axial flow fan, is mainly used in longitudinal ventilation systems of tunnels such as highways, railways, subways and the like, provides all thrust, and can also be used in sensitive parts in semi-transverse ventilation systems, such as inlets and outlets of the tunnels, and plays roles of inducing air flow or discharging smoke and the like.
The jet fan is generally arranged on the top wall of the tunnel, and a high-power fan is usually arranged in an air duct to work so as to drive air to form jet flow and achieve the purpose of air exchange and circulation in the tunnel.
The urban railway connects a metropolitan city and a satellite city, is determined to be between urban rail transit and a high-speed train, is different from a subway train and a high-speed motor train unit in type, and the conventional tunnel section cannot be effectively matched with the urban train limit. In the single-hole double-line tunnel, one fan plays a small role, and a plurality of jet fans need to be installed, so that the installation position of the jet fans needs to be considered to design the section of the tunnel, and the interference between the train and surrounding buildings and equipment during running is avoided, so that the running safety of the train is prevented.
In order to avoid the interference of vehicles with equipment such as tunnel buildings, jet fans and the like and ensure the driving safety of trains, the invention provides a key technology for solving the problem that the reasonable design of the tunnel section of a single-hole double-line jet fan aims at the vehicle limit of D-type vehicles.
Disclosure of Invention
Aiming at least one of the defects or improvement requirements in the prior art, the invention provides a tunnel section structure of a single-hole double-line jet fan based on the urban D-type vehicle limit design, which has the advantages of simple structure, reasonable design and convenient use, the tunnel section fully considers the requirements in various aspects such as vehicle limit, building limit, structural arrangement, equipment installation, personnel evacuation and the like, the requirement on train running safety is met, the interference of a train with buildings and equipment is avoided, and the tunnel section structure has strong practical value. And the jet fans are arranged by staggering and invaginating the two sides of the intermediate wall, so that the effective clean space is saved, and the ventilation effect is enhanced.
To achieve the above object, according to one aspect of the present invention, there is provided a tunnel section structure of a single-hole double-line jet fan based on urban area D type vehicle limit design, wherein:
the tunnel section consists of eight sections of circular arcs in total, and sequentially comprises an arch crown circular arc surface, a right side upper circular arc surface, a right side middle circular arc surface, a right side lower circular arc surface, an inverted arch circular arc surface, a left side lower circular arc surface, a left side middle circular arc surface and a left side upper circular arc surface; the other two adjacent arc surfaces are tangent except that the inverted arch arc surface is not tangent with the adjacent arc surface;
the tunnel is a single hole, a double-line track is arranged in the tunnel, the line centers of the two lines are bilaterally symmetrical by taking the center line of the tunnel as the center line, and no intermediate wall is arranged in the tunnel;
the evacuation platform and the jet flow fans are arranged on two sides of the middle partition wall, and the left jet flow fan and the right jet flow fan are arranged at the same height in a longitudinally staggered mode;
a composite lining is arranged on the inner side of the tunnel;
the inside of the tunnel is provided with a track structure and D-type vehicles in the city area from bottom to top in sequence;
and one side of the track structure close to the middle partition wall is provided with a side ditch drainage ditch, and the other side of the track structure is also provided with a drainage ditch.
Preferably, the section circle centers of the arch arc surface and the inverted arch arc surface are located on the central line of the tunnel.
Preferably, the effective clearance areas of the left single hole and the right single hole of the tunnel are both 39.7m2。
Preferably, the arch crown arc surface is a 60-degree arc which is symmetrical left and right, and the inner side radius of the lining is 6840 mm.
Preferably, the right upper arc surface and the left upper arc surface are symmetrical left and right, the radius of the inner side of the lining is 5540mm, and the circle centers of the sections are not positioned on the central line of the tunnel;
and/or the right middle arc surface and the left middle arc surface are bilaterally symmetrical, the radius of the inner side of the lining is 5410mm, and the circle centers of the sections are not positioned on the central line of the tunnel;
and/or the right lower arc surface and the left lower arc surface are bilaterally symmetrical, the radius of the inner side of the lining is 7390mm, and the circle center of the cross section is not positioned on the central line of the tunnel;
and/or the arc surface of the inverted arch is symmetrical left and right, the radius of the inner side of the lining is 14450mm, and the center of the section is positioned on the central line of the tunnel.
Preferably, the composite lining comprises a primary support, a waterproof layer and a secondary lining. The thickness of the composite lining at the arc surface of the inverted arch is larger than that of other arc surfaces, specifically, the thickness of the arc surface of the inverted arch is 460mm, and the thickness of the other arc surfaces is 400 mm.
Preferably, the line center distance of the two lines is greater than or equal to 6930 mm.
Preferably, the highest point of the inner profile of the tunnel is 30mm away from the top surface 80of the inner rail.
Preferably, the track structure comprises a bottom plate, a reinforced concrete track bed, fasteners and steel rails, and the height of the track structure is 560 mm.
Preferably, electrical equipment and fire fighting equipment are arranged on two sides of the track structure.
The electrical equipment comprises an illuminating lamp, an overhaul equipment box, a strong current bracket, a track circuit box, a direction box, a signal machine box, an interval wireless base station, a repeater and a stray current sensor.
The fire fighting equipment comprises an interval fire fighting water pipe and a waste water pump room water raising pipe.
The above-described preferred features may be combined with each other as long as they do not conflict with each other.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
the tunnel section structure of the single-hole double-line jet fan based on the urban D-type vehicle clearance design fully considers the requirements of various aspects such as vehicle clearance, building clearance, structural arrangement, equipment installation, personnel evacuation and the like, meets the requirement of train driving safety, avoids the interference of trains with buildings and equipment, reasonably and effectively ensures that the problem of overrun cannot be caused in the driving process of the vehicles, reduces the area of the tunnel section, and reduces the engineering investment. The invention has scientific and reasonable design, simple structure and good practicability. And the jet fans are arranged by staggering and invaginating the two sides of the intermediate wall, so that the effective clean space is saved, and the ventilation effect is enhanced.
Drawings
FIG. 1 is a cross-sectional view of a tunnel of a single-hole double-line jet fan based on a municipal D-type vehicle clearance design according to an embodiment of the invention;
FIG. 2 is an inner contour diagram of a tunnel lining of a single-hole double-line jet fan based on a municipal D-type vehicle clearance design according to an embodiment of the invention;
fig. 3 is a schematic plan view of a jet fan mounting according to an embodiment of the present invention.
In the unit of dimension in cm in FIG. 1 and in the unit of dimension in mm in FIGS. 2 to 3, each point O represents the center of the circle, each R represents the inside radius of the lining, and each R represents the outside radius of the lining.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The present invention will be described in further detail with reference to specific embodiments.
As a preferred embodiment of the present invention, as shown in fig. 1 to 3, the present invention provides a tunnel section structure of a single-hole double-line jet fan based on a city domain D type vehicle limit design, wherein:
the section of the tunnel consists of eight sections of circular arcs in total, and sequentially comprises an arch crown circular arc surface 1, a right side upper circular arc surface 3, a right side middle circular arc surface 4, a right side lower circular arc surface 5, an inverted arch circular arc surface 18, a left side lower circular arc surface 10, a left side middle circular arc surface 11 and a left side upper circular arc surface 12; except that the inverted arch arc surface 18 is not tangent to the adjacent arc surface, the other two adjacent arc surfaces are tangent. Fig. 2 shows the tunnel basic building clearance 14, signal lights 15, interval fire hoses 16, and strong electric supports 17. The train passing area of the tunnel section meets the requirements of a vehicle limit and a building limit of a D-type vehicle in a city area.
The tunnel is a single hole, a double-line track is arranged in the tunnel, the line centers of the two lines are bilaterally symmetrical by taking the center line of the tunnel as the center line, and the middle of the tunnel is provided with a middle partition wall 7. The evacuation platform 8 and the jet fans 13 are arranged on two sides of the intermediate wall 7, as shown in fig. 3, the left jet fan 13 and the right jet fan 13 which are at the same height are longitudinally arranged in a staggered manner and are sunk into the intermediate wall 7 during installation. Jet fan 13 sets up about mid-board 7, two about every side, fan length 5000mm, and fan mounting platform width is 1300mm, and below fan mounting platform is 2245mm apart from evacuation platform vertical height.
And a composite lining 2 is arranged on the inner side of the tunnel. Preferably, the composite lining 2 comprises a primary support, a waterproof layer and a secondary lining. The thickness of the composite lining 2 at the position of the inverted arch arc surface 18 is larger than that of other arc surfaces, specifically, the thickness of the inverted arch arc surface 18 is 450mm, and the thickness of the other arc surfaces is 350 mm. The type of the composite lining 2 is a limited discharge type.
The inside track structure 9, the D type car in municipality are in proper order from bottom to top in the tunnel. And a side ditch drainage ditch 6 is arranged on one side of the track structure 9 close to the middle partition wall 7, and the other side of the track structure is also provided with a drainage ditch 6. The track structure 9 comprises a bottom plate, a reinforced concrete track bed, fasteners and steel rails, and the height of the track structure is 560 mm.
The section circle centers of the arch crown arc surface 1 and the inverted arch arc surface 18 are positioned on the central line of the tunnel.
Two single hole effective clearance areas are 39.7m about the tunnel2。
When the tunnel does not consider the widening, namely the standard width or the widening is 0, as shown in figures 1-3, the arch crown arc surface 1 is a 60-degree arc which is symmetrical left and right, and the inner radius of the lining is 6840 mm. The right upper arc surface 3 and the left upper arc surface 12 are bilaterally symmetrical, the radius of the inner side of the lining is 5540mm, and the circle center of the cross section is not positioned on the central line of the tunnel; and/or the right middle arc surface 4 and the left middle arc surface 11 are bilaterally symmetrical, the radius of the inner side of the lining is 5410mm, and the centers of the cross sections are not positioned on the central line of the tunnel; and/or the right lower arc surface 5 and the left lower arc surface 10 are bilaterally symmetrical, the radius of the inner side of the lining is 7390mm, and the circle center of the cross section is not positioned on the central line of the tunnel; and/or the inverted arch arc surface 18 is symmetrical left and right, the radius of the inner side of the lining is 14450mm, and the center of the cross section is positioned on the central line of the tunnel.
The line center distance of the two lines is greater than or equal to 6930 mm.
The highest point of the inner contour of the tunnel is 30mm away from the top surface of the inner rail.
And electrical equipment and fire fighting equipment are arranged on two sides of the track structure 9.
The electrical equipment comprises an illuminating lamp, an overhaul equipment box, a strong current bracket 17, a track circuit box, a direction box, a signal machine box, an interval wireless base station, a repeater and a stray current sensor.
The fire fighting equipment comprises an interval fire fighting water pipe 16 and a waste water pumping room water raising pipe.
The tunnel section structure of the single-hole double-line jet fan based on the urban D-type vehicle clearance design fully considers the requirements of various aspects such as vehicle clearance, building clearance, structural arrangement, equipment installation, personnel evacuation and the like, meets the requirement of train driving safety, avoids the interference of trains with buildings and equipment, reasonably and effectively ensures that the problem of overrun cannot be caused in the driving process of the vehicles, reduces the area of the tunnel section, and reduces the engineering investment. The invention has scientific and reasonable design, simple structure and good practicability. And the jet fans are arranged by staggering and invaginating the two sides of the intermediate wall, so that the effective clean space is saved, and the ventilation effect is enhanced.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a single hole double-line efflux fan tunnel section structure based on design of municipality domain D type car limit, its characterized in that:
the tunnel section consists of eight sections of circular arcs in total, and sequentially comprises an arch crown circular arc surface (1), a right side upper circular arc surface (3), a right side middle circular arc surface (4), a right side lower circular arc surface (5), an inverted arch circular arc surface (18), a left side lower circular arc surface (10), a left side middle circular arc surface (11) and a left side upper circular arc surface (12); except that the inverted arch arc surface (18) is not tangent with the adjacent arc surface, other two adjacent arc surfaces are tangent;
the tunnel is a single hole, a double-line track is arranged in the tunnel, the line centers of the two lines are bilaterally symmetrical by taking the center line of the tunnel as the center line, and a middle partition wall (7) is arranged in the middle of the tunnel;
an evacuation platform (8) and jet flow fans (13) are arranged on two sides of the middle partition wall (7), and the left jet flow fan (13) and the right jet flow fan (13) at the same height are longitudinally staggered;
a composite lining (2) is arranged on the inner side of the tunnel;
the inside of the tunnel is sequentially provided with a track structure (9) and D-type vehicles in the urban area from bottom to top;
and one side of the track structure (9) close to the intermediate wall (7) is provided with a side ditch drainage ditch (6), and the other side of the track structure is also provided with a drainage ditch (6).
2. The single-hole double-line jet flow fan tunnel section structure based on the urban area D type vehicle limit design according to claim 1, characterized in that:
the section circle centers of the arch crown arc surface (1) and the inverted arch arc surface (18) are positioned on the central line of the tunnel.
3. The single-hole double-line jet flow fan tunnel section structure based on the urban area D type vehicle limit design according to claim 2, characterized in that:
the effective headroom of the left single hole and the right single hole of the tunnel is 39.7 square meters.
4. The single-hole double-line jet flow fan tunnel section structure based on the urban area D type vehicle limit design according to claim 2, characterized in that:
the arch crown arc surface (1) is a 60-degree arc which is bilaterally symmetrical, the radius of the inner side of the lining is 6840mm, and the center of the cross section is located on the central line of the tunnel.
5. The single-hole double-line jet flow fan tunnel section structure based on the urban area D type vehicle limit design according to claim 4, characterized in that:
the right upper arc surface (3) and the left upper arc surface (12) are bilaterally symmetrical, the radius of the inner side of the lining is 5540mm, and the circle center of the cross section is not positioned on the central line of the tunnel;
and/or the right middle arc surface (4) and the left middle arc surface (11) are bilaterally symmetrical, the radius of the inner side of the lining is 5410mm, and the centers of the cross sections are not positioned on the central line of the tunnel;
and/or the right lower arc surface (5) and the left lower arc surface (10) are bilaterally symmetrical, the radius of the inner side of the lining is 7390mm, and the circle centers of the sections are not positioned on the central line of the tunnel;
and/or the inverted arch arc surface (18) is symmetrical left and right, the radius of the inner side of the lining is 14450mm, and the center of the cross section is positioned on the central line of the tunnel.
6. The single-hole double-line jet flow fan tunnel section structure based on the urban area D type vehicle limit design according to claim 1, characterized in that:
jet fan (13) length 5000mm, fan mounting platform width are 1300mm, and below fan mounting platform is 2245mm apart from evacuation platform vertical height.
7. The single-hole double-line jet flow fan tunnel section structure based on the urban area D type vehicle limit design according to claim 1, characterized in that:
the line center distance of the two lines is greater than or equal to 6930 mm.
8. The single-hole double-line jet flow fan tunnel section structure based on the urban area D type vehicle limit design according to claim 1, characterized in that:
the highest point of the inner contour of the tunnel is 30mm away from the top surface of the inner rail.
9. The single-hole double-line jet flow fan tunnel section structure based on the urban area D type vehicle limit design according to claim 1, characterized in that:
the track structure (9) comprises a bottom plate, a reinforced concrete track bed, fasteners and steel rails, and the height of the track structure is 560 mm.
10. The urban area D type vehicle clearance design-based single-hole double-line jet flow fan tunnel section structure of claim 9, wherein:
and electrical equipment and fire fighting equipment are arranged on two sides of the track structure (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910974326.7A CN110700851A (en) | 2019-10-14 | 2019-10-14 | Single-hole double-line jet fan tunnel section based on urban D-type vehicle clearance design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910974326.7A CN110700851A (en) | 2019-10-14 | 2019-10-14 | Single-hole double-line jet fan tunnel section based on urban D-type vehicle clearance design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110700851A true CN110700851A (en) | 2020-01-17 |
Family
ID=69198765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910974326.7A Pending CN110700851A (en) | 2019-10-14 | 2019-10-14 | Single-hole double-line jet fan tunnel section based on urban D-type vehicle clearance design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110700851A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692696A (en) * | 2020-05-29 | 2020-09-22 | 重庆大学 | Smoke-proof air curtain system for tunnel communication channel |
| CN112282841A (en) * | 2020-12-03 | 2021-01-29 | 中铁建大桥工程局集团第五工程有限公司 | Rapid drainage and slag discharge system for full-section tunnel and construction method |
| CN113775571A (en) * | 2021-10-22 | 2021-12-10 | 上海市城市建设设计研究总院（集团）有限公司 | Jet fan mounting structure based on tramcar in tunnel |
-
2019
- 2019-10-14 CN CN201910974326.7A patent/CN110700851A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692696A (en) * | 2020-05-29 | 2020-09-22 | 重庆大学 | Smoke-proof air curtain system for tunnel communication channel |
| CN112282841A (en) * | 2020-12-03 | 2021-01-29 | 中铁建大桥工程局集团第五工程有限公司 | Rapid drainage and slag discharge system for full-section tunnel and construction method |
| CN113775571A (en) * | 2021-10-22 | 2021-12-10 | 上海市城市建设设计研究总院（集团）有限公司 | Jet fan mounting structure based on tramcar in tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110700851A (en) | Single-hole double-line jet fan tunnel section based on urban D-type vehicle clearance design | |
| CN111206462A (en) | U type magnetic levitation track traffic beam | |
| CN211008657U (en) | Single-hole double-line jet fan tunnel section based on urban D-type vehicle clearance design | |
| CN108749821B (en) | Tramcar underground station | |
| CN110700852A (en) | Single-hole double-line mine method tunnel section with mid-partition wall designed by urban D-type vehicle clearance | |
| CN100543271C (en) | Magnetic suspension tunnel internal zone dividing method | |
| CN211230481U (en) | Single-hole double-line mine method tunnel section with urban D-type vehicle clearance design and without mid-partition wall | |
| CN100469976C (en) | Magnetic suspension tunnel internal partitioned form | |
| CN112112005B (en) | Hollow-out type double-line track beam body structure and split type vacuum pipeline with same | |
| CN213768521U (en) | Underground station for tramcar | |
| CN211116008U (en) | Single-hole double-line mine method tunnel section with mid-partition wall designed by urban D-type vehicle clearance | |
| CN200964554Y (en) | Magnetic levitation tunnel inside segmentation formation | |
| CN210977501U (en) | Single-hole single-line mine tunnel section structure based on urban D-type vehicle limit design | |
| CN101581159A (en) | Building channel | |
| CN210797125U (en) | Hollow-out type double-line track beam body structure and split type vacuum pipeline with same | |
| CN110714778A (en) | Single-hole double-line mine method tunnel section with urban D-type vehicle clearance design and without mid-partition wall | |
| CN213627587U (en) | Shield tunnel section structure based on urban area and intercity motor train unit clearance design | |
| CN212803325U (en) | Structure for connecting evacuation platform and platform between underground station civil air defense sections | |
| CN110725697A (en) | Single-hole single-line mine tunnel section structure based on urban D-type vehicle limit design | |
| CN114382024B (en) | Overhead section structure based on four-rail backflow city B-type vehicle limit design | |
| CN211008656U (en) | Shield tunnel section structure based on urban D type vehicle clearance design | |
| CN212716708U (en) | Tunnel ventilation system | |
| CN112228099A (en) | Shield tunnel section structure based on urban area and intercity motor train unit clearance design | |
| CN111828084A (en) | Structure for connecting evacuation platform and platform between underground station civil air defense sections | |
| CN205876375U (en) | Tunnel ventilation device |
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 | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Gaokun Inventor after: Ge Yu Inventor after: Zheng Qingsong Inventor after: Qiu Shaofeng Inventor after: Li Jiaqi Inventor after: Li Jingwei Inventor after: Zhou Mingxing Inventor after: Zhang Di Inventor after: Xu Hongwei Inventor after: Yang Hui Inventor before: Liu Gaokun Inventor before: Ge Yu Inventor before: Zheng Qingsong Inventor before: Qiu Shaofeng Inventor before: Li Jiaqi Inventor before: Li Jingwei Inventor before: Zhou Mingxing Inventor before: Zhang Di Inventor before: Xu Hongwei Inventor before: Yang Hui |