CN114961772A - Underground structure combining subway station and tunnel and construction method thereof - Google Patents
Underground structure combining subway station and tunnel and construction method thereof Download PDFInfo
- Publication number
- CN114961772A CN114961772A CN202210722183.2A CN202210722183A CN114961772A CN 114961772 A CN114961772 A CN 114961772A CN 202210722183 A CN202210722183 A CN 202210722183A CN 114961772 A CN114961772 A CN 114961772A
- Authority
- CN
- China
- Prior art keywords
- plate
- tunnel
- station
- middle plate
- subway station
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 47
- 239000004567 concrete Substances 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000009412 basement excavation Methods 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005034 decoration Methods 0.000 claims description 3
- 239000003337 fertilizer Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses an underground structure combining a subway station and a tunnel, wherein the subway station is arranged above the tunnel, a middle plate is arranged in the middle of the subway station, the whole framework of the subway station comprises a top plate, side walls, a top longitudinal beam, a middle plate and a middle plate side beam, the side walls are arranged on the left side and the right side of the top plate, a middle longitudinal beam and a middle plate side beam are arranged at the bottom of the middle plate, a pipe culvert and an air duct are formed between the middle longitudinal beam and the middle plate side beam, shield tunnels are arranged on the left side and the right side of the middle plate, a station platform plate of the subway station is arranged right below the middle plate, a bottom plate and a bottom longitudinal beam are arranged below the platform plate, and the pipe culvert and the air duct of the shield tunnel are arranged at the bottom longitudinal beam and the platform plate. The invention fully utilizes the self structure of the shield segment to be combined with the station, the station adopts a local station hall layer structure to sink, and adopts the special interface steel ring of the shield segment to facilitate the connection with the main body opening of the station, thereby fully utilizing the self structure of the shield tunnel, reducing the engineering quantity of the cast-in-place concrete structure of the station and saving the construction period and the construction cost.
Description
Technical Field
The invention belongs to the technical field of underground engineering, rail transit and tunnel construction, and particularly relates to an underground structure combining a subway station and a tunnel and a construction method thereof.
Background
In recent years, with the continuous acceleration of urbanization construction and the continuous increase of population quantity, the demand of people for travel is increasing day by day; the traffic is the basis of urban development, and the urban rail traffic is used as a high-speed and large-traffic backbone traffic mode for relieving urban traffic jam, guiding reasonable expansion of urban spatial layout and promoting reasonable migration of urban population. By 2021, 45 cities in China are built and put into operation by 7978.2 kilometers, the increase is 18.54% on year-by-year basis, and the industry speed increase is obviously increased.
The subway is a traffic system consisting of lines, trains, stations and the like, shield construction is generally adopted for the construction of a tunnel of a rail traffic line, and open excavation, underground excavation and other methods are generally adopted for the construction of the stations; before tunnel shield construction, a shield receiving well and an originating well are usually required to be arranged at a station position, the station is constructed firstly, shield hoisting can be carried out in place after the shield well is completed, then tunnel construction can be carried out, the efficiency is low, and the construction period is long; the excavation depth of a standard section of a conventional station is 16-18m, the depth of a shield well foundation pit is about 22-24m generally, the construction risk is increased, and the cost is increased.
At present, some cases of large shield underground excavation station construction exist at home and abroad, such as a beam pressing method of a Japanese subway and a large shield expanding excavation method of a Beijing subway, all stations adopting underground excavation construction are adopted, the construction is complex, and the construction risk is high.
All the schemes are limited by ground fields, and the underground excavation method is adopted for construction, so that the construction method is complicated, the construction difficulty is high, the period is long, and the construction cost is high; in addition, equipment, ventilation, communication, pipelines and the like of the subway need to be arranged in a site or specially designed, and construction of an entrance and an exit on the ground is inconvenient; therefore, for rail transit, the tunnel is generally constructed by adopting a shield, and most of subway stations are still constructed by adopting open cut.
Disclosure of Invention
In order to overcome the technical problems in the prior art, the invention provides an underground structure combining a subway station and a tunnel, which avoids the problems that the construction method of the traditional shield tunneling method is complicated, the construction difficulty is high, the period is long, the construction cost is high, in addition, equipment, ventilation, communication, pipelines and the like of the subway need to find a place for placement or special design, in addition, the construction of an access and the like of the ground is inconvenient, meanwhile, the depth of a foundation pit of the traditional open cut station is reduced, the consumption of reinforced concrete of the traditional open cut station is saved, and the technical problems are solved.
The utility model provides an underground structure that subway station and tunnel combine, subway station sets up the top in the tunnel, the intermediate position is provided with the medium plate, subway station's whole framework includes the roof, the side wall, the top longeron, medium plate and medium plate boundary beam, the left and right sides of roof is provided with the side wall, there are well longeron and medium plate boundary beam medium plate bottom, well longeron forms the pipe culvert and the wind channel with the centre of medium plate boundary beam, the left and right sides of medium plate is provided with the shield tunnel, be the station platform board of subway station under, the platform board is transferred and is set up the bottom plate and end longeron, end longeron and platform board department are provided with the pipe culvert and the wind channel of shield tunnel.
Foretell underground structure that subway station and tunnel combine, when the subway station was two post three spans, the column had been increased to the mid gap position of roof, medium plate and end longeron.
Foretell underground structure that subway station and tunnel combined, when the subway station was two strides for the single-column, the crossbeam is add on the upper portion of medium plate.
According to the underground structure combining the subway station and the tunnel, the escalator or the stair can be arranged within the height range of the middle plate and the station bedplate.
A construction method of an underground structure combining a subway station and a tunnel mainly comprises the following construction steps:
s1: firstly, constructing a shield tunnel, and carrying out 'tee joint one-level' construction on a ground construction site;
s2: counterweight measures such as iron blocks are added in the tunnel, and temporary supports are arranged in the tunnel to prevent the tunnel from floating and deforming due to the fact that soil body uplift is generated in later foundation pit excavation;
s3: constructing fender posts and dewatering wells on two sides;
s4: excavating the foundation pit to 0.5m below the first support, and constructing a top beam, a water retaining ridge, a slope top drainage ditch and the first concrete support of the enclosure structure;
s5: excavating the foundation pit to 0.5m below the second support, and constructing the second support;
s6: excavating a foundation pit to the bottom of the middle plate;
s7: after the slab layer and the local support are constructed, locally excavating the foundation pit to the local bottom of the second underground layer, and constructing a local second lower slab layer;
s8: cutting or dismantling the tunnel segment of the pre-buried steel lantern ring after strengthening the support in the tunnel;
s9: constructing a bottom plate waterproof structure, a bottom plate longitudinal beam structure and a bottom plate longitudinal beam structure, and pouring shield segments and the bottom plate structure into a whole;
s10: after the bottom plate and the bottom plate longitudinal beam reach the designed strength, the middle plate temporary support is dismantled, and the middle plate and the middle longitudinal beam are constructed;
s11: after the middle plate and the middle longitudinal beam reach the designed strength, dismantling the temporary support above the middle plate, and constructing a top plate and a top longitudinal beam;
s12: after the top plate and the top longitudinal beam reach the design strength, constructing secondary structure construction such as a station internal pipe gallery, an air duct, a station bedplate, electromechanical installation, decoration and the like;
s13: and (4) backfilling fertilizer grooves (if any) on two sides of the structure and covering soil on the ground, and removing the temporary support in the tunnel and the weight balance of the weight iron in the tunnel.
Generally, compared with the prior art, the technical scheme of the invention can achieve the following beneficial effects:
1. the shield of the invention directly passes through the subway station to be constructed, and the station does not need to be provided with an end well, thereby saving the time for hoisting and dismounting the shield, saving the construction period, reducing the depth and the width of a foundation pit of the station, and reducing the construction risk and the construction difficulty;
2. the invention fully utilizes the self structure of the shield segment to be combined with the station, the station adopts a local station hall layer structure to sink, and adopts the special interface steel ring of the shield segment, thereby being convenient for connecting with the main body opening of the station, fully utilizing the self structure of the shield tunnel, reducing the engineering quantity of the cast-in-place concrete structure of the station and saving the construction period and the manufacturing cost;
3. the station adopts a local station hall layer structure to sink, when the enclosure structure is constructed, the middle plate structures on two sides and the middle temporary support can be used as a supporting structure, the temporary support can be reduced, and when two layers of stations are constructed, only one concrete support needs to be arranged, so that the number of the enclosure structure supports is greatly reduced, and the manufacturing cost and the construction period are reduced.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
fig. 1 is a first cross-sectional view of an underground structure of a subway station and a tunnel combination for a double-column three-span station according to the present invention;
fig. 2 is a second cross-sectional view of the underground structure of the subway station and tunnel combination for a double-column three-span station according to the present invention;
FIG. 3 is a third cross-sectional view of the underground structure of the subway station and tunnel combination for a double-column three-span station according to the present invention;
FIG. 4 is a fourth cross-sectional view of the underground structure of the subway station and tunnel combination for a double-column three-span station according to the present invention;
FIG. 5 is a fifth cross-sectional view of the underground structure of the subway station and tunnel combination for a double-column three-span station according to the present invention;
FIG. 6 is a first cross-sectional view of the underground structure of a subway station and a tunnel combination for a single-column double-span station according to the present invention;
fig. 7 is a second cross-sectional view of the underground structure of a subway station and a tunnel combination for a single-column double-span station according to the present invention;
fig. 8 is a third cross-sectional view of the underground structure of a subway station and a tunnel combination for a single-column double-span station according to the present invention;
fig. 9 is a fourth cross-sectional view of the underground structure of a subway station and a tunnel combination for a single-column double-span station according to the present invention;
in the figure: 1-top plate, 2-side wall, 3-pillar, 4-top longitudinal beam, 5-middle plate, 6-middle plate side beam, 7-middle longitudinal beam, 8-cross beam, 9-pipe culvert and air duct, 10-shield tunnel, 11-bottom plate, 12-bottom longitudinal beam, 13-escalator, 14-stair and 15-station plate.
Detailed Description
The invention relates to an underground structure combining a subway station and a tunnel, wherein the subway station is arranged above the tunnel, a middle plate 5 is arranged in the middle of the subway station, the overall structure of the subway station comprises a top plate 1, side walls 2, top longitudinal beams 4, a middle plate 5 and middle plate side beams 6, the side walls 2 are arranged on the left side and the right side of the top plate 1, a middle longitudinal beam 7 and a middle plate side beam 6 are arranged at the bottom of the middle plate 5, a pipe culvert and an air duct 9 are formed between the middle longitudinal beam 7 and the middle plate side beams 6, shield tunnels 10 are arranged on the left side and the right side of the middle plate 5, a station plate 15 of the subway station is arranged right below the middle plate 5, a bottom plate 11 and a bottom longitudinal beam 12 are arranged under the station plate 15, and the pipe culvert and the air duct 9 of the shield tunnel 10 are arranged at the positions of the bottom longitudinal beam 12 and the station plate 15.
When the subway station is a double-column three-span station, columns 3 are additionally arranged in the middle gap positions of the top plate 1, the middle plate 5 and the bottom longitudinal beams 12, as shown in fig. 1 to 5, the three cross-sectional views for the double-column three-span station are shown.
When the subway station is a single-column double-span subway station, the beam 8 is additionally arranged at the upper part of the middle plate 5; the height range of the middle plate 5 and the platform plate 15 can be provided with an escalator 13 or a staircase 14, as shown in fig. 6 to 9, which are three cross-sectional views for a double-column three-span station according to the present invention.
A construction method of an underground structure combining a subway station and a tunnel is characterized by mainly comprising the following construction steps:
the method comprises the following steps: firstly constructing a shield tunnel, and carrying out tee joint one-level construction on a ground construction site;
step two: counterweight measures such as iron blocks are added in the tunnel, and temporary supports are arranged in the tunnel to prevent the tunnel from floating and deforming due to the fact that soil body uplift is generated in later foundation pit excavation;
step three: constructing fender posts and dewatering wells on two sides;
step four: excavating the foundation pit to 0.5m below the first support, and constructing a top beam, a water retaining ridge, a slope top drainage ditch and the first concrete support of the enclosure structure;
step five: excavating the foundation pit to 0.5m below the second support, and constructing the second support;
step six: excavating a foundation pit to the bottom of the middle plate 5;
step seven: after constructing the cushion layer and the local support of the middle plate 5, locally excavating the foundation pit to the local bottom of the underground second layer, and constructing a local second-layer lower cushion layer;
step eight: cutting or dismantling the tunnel segment of the pre-buried steel lantern ring after strengthening the support in the tunnel;
step nine: constructing a bottom plate waterproof structure, a bottom plate longitudinal beam structure and a bottom plate longitudinal beam structure, and pouring shield segments and the bottom plate structure into a whole;
step ten: after the bottom plate and the bottom plate longitudinal beam reach the designed strength, the temporary support of the middle plate 5 is removed, and the middle plate 5 and the middle longitudinal beam 7 are constructed;
step eleven: after the middle plate 5 and the middle longitudinal beams 7 reach the designed strength, removing the temporary support above the middle plate 5, and constructing the top plate 1 and the top longitudinal beams 4;
step twelve: after the top plate 1 and the top longitudinal beam 4 reach the design strength, constructing secondary structure construction such as a station internal pipe gallery, an air duct, a station bedplate, electromechanical installation, decoration and the like;
step thirteen: if the fertilizer grooves on the two sides of the backfill structure are covered with soil on the ground, the temporary support in the tunnel and the weight of the weight iron in the tunnel are removed.
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 (5)
1. An underground structure combining a subway station and a tunnel is characterized in that the subway station is arranged above the tunnel, a middle plate (5) is arranged in the middle of the subway station, the overall structure of the subway station comprises a top plate (1), side walls (2), top longitudinal beams (4), the middle plate (5) and middle plate side beams (6), the left side and the right side of the top plate (1) are provided with side walls (2), the bottom of the middle plate (5) is provided with a middle longitudinal beam (7) and a middle plate edge beam (6), the middle of the middle longitudinal beam (7) and the middle plate boundary beam (6) form a pipe culvert and an air duct (9), the shield tunnels (10) are arranged at the left side and the right side of the middle plate (5), the platform plate (15) of the subway station is arranged right below the middle plate, a bottom plate (11) and a bottom longitudinal beam (12) are arranged below the station plate (15), and a pipe culvert and an air duct (9) of the shield tunnel (10) are arranged at the bottom longitudinal beam (12) and the platform plate (15).
2. The underground structure of a subway station and a tunnel combination as claimed in claim 1, wherein when the subway station is a double-column three-span subway station, the columns (3) are additionally arranged at the middle gap positions of the top plate (1), the middle plate (5) and the bottom longitudinal beams (12).
3. An underground structure of a subway station and a tunnel combination as claimed in claim 1, wherein when the subway station is a single-column double-span, the upper part of said middle plate (5) is added with a beam (8).
4. A subway station and tunnel combined underground structure as claimed in claim 1, wherein said height ranges of said middle plate (5) and station platform plate (15) can be set up with escalator (13) or stairs (14).
5. A construction method of an underground structure combining a subway station and a tunnel is characterized by mainly comprising the following construction steps:
s1: firstly, constructing a shield tunnel, and carrying out 'tee joint one-level' construction on a ground construction site;
s2: counterweight measures such as iron blocks are added in the tunnel, and temporary supports are arranged in the tunnel to prevent the tunnel from floating and deforming due to the fact that soil body uplift is generated in later foundation pit excavation;
s3: constructing the fender posts and the dewatering wells on two sides;
s4: excavating the foundation pit to 0.5m below the first support, and constructing a top beam, a water retaining ridge, a slope top drainage ditch and the first concrete support of the enclosure structure;
s5: excavating the foundation pit to 0.5m below the second support, and constructing the second support;
s6: excavating a foundation pit to the bottom of the middle plate (5);
s7: after constructing the cushion layer and the local support of the middle plate (5), locally excavating the foundation pit to the local bottom of the underground second layer, and constructing a local second-layer lower cushion layer;
s8: cutting or dismantling the tunnel segment of the pre-buried steel lantern ring after strengthening the support in the tunnel;
s9: constructing a bottom plate waterproof structure, a bottom plate longitudinal beam structure and a bottom plate longitudinal beam structure, and pouring shield segments and the bottom plate structure into a whole;
s10: after the bottom plate and the bottom plate longitudinal beam reach the designed strength, the temporary support of the middle plate (5) is removed, and the middle plate (5) and the middle longitudinal beam (7) are constructed;
s11: after the middle plate (5) and the middle longitudinal beam (7) reach the designed strength, removing the temporary support above the middle plate (5), and constructing the top plate (1) and the top longitudinal beam (4);
s12: after the top plate (1) and the top longitudinal beam (4) reach the design strength, constructing secondary structure construction such as a station internal pipe gallery, an air channel, a station bedplate, electromechanical installation, decoration and the like;
s13: and (4) backfilling fertilizer grooves (if any) on two sides of the structure and covering soil on the ground, and removing the temporary support in the tunnel and the weight of the weight iron in the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210722183.2A CN114961772A (en) | 2022-06-24 | 2022-06-24 | Underground structure combining subway station and tunnel and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210722183.2A CN114961772A (en) | 2022-06-24 | 2022-06-24 | Underground structure combining subway station and tunnel and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114961772A true CN114961772A (en) | 2022-08-30 |
Family
ID=82972241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210722183.2A Pending CN114961772A (en) | 2022-06-24 | 2022-06-24 | Underground structure combining subway station and tunnel and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114961772A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118498430A (en) * | 2024-07-17 | 2024-08-16 | 深地科学与工程云龙湖实验室 | Energy underground structure system for assembled subway station and distribution method thereof |
-
2022
- 2022-06-24 CN CN202210722183.2A patent/CN114961772A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118498430A (en) * | 2024-07-17 | 2024-08-16 | 深地科学与工程云龙湖实验室 | Energy underground structure system for assembled subway station and distribution method thereof |
| CN118498430B (en) * | 2024-07-17 | 2024-09-20 | 深地科学与工程云龙湖实验室 | Energy underground structure system for assembled subway station and distribution method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107558494B (en) | Underground station structure for rail transit and construction method thereof | |
| US12025008B2 (en) | Vertical orthogonal top exhausting air duct structure of deeply-buried subway station and construction method therefor | |
| CN107119711B (en) | Connecting structure for large-range adjacent existing transfer station and construction method | |
| CN110578339B (en) | Construction method of shaft type underground stereo garage | |
| CN106703828A (en) | The construction method of building subway station with fabricated lining combination PBA | |
| CN110030016B (en) | Large-section tunnel structure of hard rock stratum underground excavation single-layer lining subway parking line | |
| CN213682122U (en) | Foundation ditch crowd excavation structure of complicated abnormal shape foundation ditch in subway transfer station | |
| CN116446926B (en) | Structure conversion method for forming integral subway station by double-hole closely-attached jacking pipe | |
| CN113668604A (en) | Construction method for integrally forming box culvert under subway station through rectangular jacking pipes | |
| CN111218886A (en) | Bias subway station and viaduct combined construction structure and construction method | |
| CN105781570A (en) | Metro internal-bracing-free track panel shaft and construction method thereof | |
| CN114961772A (en) | Underground structure combining subway station and tunnel and construction method thereof | |
| CN112922646A (en) | Building method of underground excavation station excavated by large-section single-span support through superposed arch-wall integrated type | |
| CN113847069B (en) | Underground excavation subway station of suspension type station hall layer and independent rail traveling area and construction method thereof | |
| CN116145729A (en) | Subway layered station structure in sea-land connection area and construction method thereof | |
| CN114109402B (en) | Large-section construction method of underground excavated crossover line implemented by interval tunnel organization | |
| CN115030730A (en) | Construction technology for subway underground excavation station engineering | |
| CN211897785U (en) | Bias-pressure subway station and viaduct combined construction structure | |
| CN212454438U (en) | Cross street passageway and interregional tunnel of underground build structure jointly | |
| CN210657857U (en) | Ground structure section of bridge tunnel transition | |
| CN110468650B (en) | Ground structure section for bridge-tunnel transition | |
| CN114352326A (en) | Assembled subway station and construction method thereof | |
| CN210797573U (en) | Underground structure internal transportation system based on under-board sliding groove | |
| CN111894623A (en) | Combined construction structure of street crossing channel and underground interval tunnel and construction method | |
| CN205532617U (en) | In not having, supports in subway section of track well |
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 |