CN107120119A - The construction method of Underground Subway Station - Google Patents
The construction method of Underground Subway Station Download PDFInfo
- Publication number
- CN107120119A CN107120119A CN201710308787.1A CN201710308787A CN107120119A CN 107120119 A CN107120119 A CN 107120119A CN 201710308787 A CN201710308787 A CN 201710308787A CN 107120119 A CN107120119 A CN 107120119A
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- China
- Prior art keywords
- construction
- arch
- pilot tunnel
- main hole
- lining
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Classifications
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- 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
-
- 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
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- 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
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of construction method of Underground Subway Station, including：Using the pilot tunnel of benching tunnelling method section construction three, and after each bench excavation is complete construction to should step preliminary bracing structure and interim inverted arch, three pilot tunnel includes middle drift and the side pilot tunnel of the middle drift both sides；Section construction inverted arch, center pillar, back timber and Arch lining are completed in the excavation supporting of the middle drift, while the side wall lining for side pilot tunnel of constructing and applying false stull；In side, the liner structure of pilot tunnel abutment wall completes section with middle drift agent structure, excavates the top bar and During Initial Stage Construction supporting construction in main hole, and the Arch lining in main hole of then constructing completes button arch；And excavate in main hole, get out of a predicament or an embarrassing situation and inverted arch of constructing.The present invention can many pilot tunnel synchronous constructions, complete after the button arch construction of main hole, liner structure, which turns into, stablizes stress system, main wide open digging stability is good, while improving integral construction work efficiency.
Description
Technical field
The present invention relates to Underground Subway Station field.It is more particularly related to which a kind of Underground Subway Station is applied
Work method.
Background technology
In recent years, China's urban construction is developed rapidly, and Urban Rail Transit Project scale is unprecedented.Handed in city rail
In logical Process of Engineering Construction, restricted by traffic data process and surrounding enviroment, Station is a kind of common station construction form.Ground
The general buried depth in iron station is shallower, and Station section span with it is highly larger, shallow mining method risk is larger, general using many
Pilot tunnel construction, common such as bilateral wall approach, middle hole method, post hole method, cavern-pile method, but generally existing pilot tunnel working procedure interlock dry
Disturb, the problem of construction efficiency is low.
The content of the invention
It is an object of the invention to solve at least the above, and provide the advantage that at least will be described later.
It is a still further object of the present invention to provide a kind of construction party of the Underground Subway Station using three pilot tunnel synchronous constructions
Main structure construction can be carried out synchronously in method, pilot tunnel, after the completion of main hole button arch construction, progressively removed gib, completed master
Body structure residual part, can provide construction efficiency.
In order to realize the applying there is provided a kind of Underground Subway Station according to object of the present invention and further advantage
Work method, including：
S1, using the pilot tunnel of benching tunnelling method section construction three, and each bench excavation it is complete after construction to should step just
Phase supporting and interim inverted arch, three pilot tunnel include middle drift and the side pilot tunnel of the middle drift both sides；
S2, excavation supporting completion section construction inverted arch, center pillar, back timber and Arch lining in the middle drift, construct simultaneously
The side wall lining of side pilot tunnel simultaneously applies false stull；
S3, liner structure and middle drift agent structure the completion section in side pilot tunnel abutment wall, the top bar for excavating main hole are simultaneously applied
Work preliminary bracing structure, the Arch lining and button in main hole of then constructing encircle；And
In S4, the main hole of excavation, get out of a predicament or an embarrassing situation and inverted arch of constructing.
Preferably, the step S1 is specifically included：Pilot tunnel from top to bottom excavates top bar, middle step and leave from office successively
Rank, preliminary bracing structure and the interim inverted arch of the step of being constructed after each bench excavation is complete.
Preferably, it is described to should step preliminary bracing structure include steelframe, reinforced mesh and lock foot anchoring stock.
Preferably, the step S2 is specifically included：
In middle drift construction inverted arch and middle column foundation, the interim inverted arch and middle step of top bar are removed in center pillar position
Interim inverted arch, constructed after dismounting center pillar and middle plate, and in the reserved connectors with plate bar connecting in main hole of Zhong Banchu, in
Post completes section construction back timber and Arch lining structure, the reserved connector with main hole lining cutting bar connecting of liner structure；
Side hole is according to the sequence construction side wall lining structure by arch springing, haunch and vault simultaneously, and applies arch springing, arch respectively
The false stull of waist and vault, the reserved connector with main hole Arch lining bar connecting of keystone of lining cutting.
Preferably, the step S3 is specifically included：
In the side wall lining structure and middle drift agent structure completion section, the advance support knot in main hole of constructing of two side pilot tunnels
Structure, then symmetrically excavates main hole in top bar, the preliminary bracing structure and interim inverted arch of main hole top bar of constructing, and interim inverted arch
It is generally aligned in the same plane with the false stull of side pilot tunnel side wall lining structure；
The preliminary bracing structure of pilot tunnel part in the range of main hole top bar is removed, rack template is set up, while assembling reinforcement,
The lining cutting bar connecting of reinforcing bar and side pilot tunnel, casting concrete completes the construction of main hole button arch.
Preferably, the step S4 is specifically included：
Excavate the middle step in main hole, after the completion of remove preliminary bracing structure of the pilot tunnel at middle step；
When being excavated to plate absolute altitude in station, plate in being constructed using floor molding, by slab muscle and middle drift in main hole
The abutment wall reserved steel bar connection of the reserved connector of plate and side pilot tunnel.
Excavate getting out of a predicament or an embarrassing situation for main hole, after the completion of remove pilot tunnel in the preliminary bracing structure at place of getting out of a predicament or an embarrassing situation, inverted arch of then constructing
And bottom plate.
Preferably, the height of the top bar is 4.5m, and middle step and the height got out of a predicament or an embarrassing situation are 5.5m.
The present invention at least includes following beneficial effect：This method can many pilot tunnel synchronous constructions, complete main hole and pilot tunnel
After button arch construction, liner structure, which turns into, stablizes stress system, and main wide open digging stability is good, while improving integral construction work efficiency.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
The constructing structure schematic diagram that Fig. 1 is step S1 in embodiments of the invention 1；
The constructing structure schematic diagram that Fig. 2 is step S2 in embodiments of the invention 1；
The constructing structure schematic diagram that Fig. 3 is step S3 in embodiments of the invention 1；
The constructing structure schematic diagram that Fig. 4 is step S4 in embodiments of the invention 1；
The constructing structure schematic diagram that Fig. 5 is step S5 in embodiments of the invention 1.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
In order to overcome the pilot tunnel working procedure that shallow mining method in the prior art is present to interlock interference, construction efficiency is low to ask
Topic, the invention provides a kind of construction method of Underground Subway Station, including：
Using the construction method of the Underground Subway Station of three pilot tunnel synchronous constructions, main structure construction can be synchronous in pilot tunnel
Carry out, after the completion of main hole button arch construction, progressively remove gib, complete agent structure remainder, construction work can be improved
Effect.
In order to realize that there is provided a kind of construction party of Underground Subway Station according to object of the present invention and further advantage
Method, including：
S1, using the pilot tunnel of benching tunnelling method section construction three, and the branch at initial stage for the step of constructing after each bench excavation is complete
Shield and interim inverted arch, three pilot tunnel include middle drift and the side pilot tunnel of the middle drift both sides；
S2, excavation supporting completion section construction inverted arch, center pillar, back timber and Arch lining in the middle drift, construct simultaneously
The side wall lining of side pilot tunnel simultaneously applies false stull；
S3, liner structure and middle drift agent structure the completion section in side pilot tunnel abutment wall, the top bar for excavating main hole are simultaneously applied
Work preliminary bracing structure, the Arch lining and button in main hole of then constructing encircle；And
In S4, the main hole of excavation, get out of a predicament or an embarrassing situation and inverted arch of constructing.
The present invention can many pilot tunnel synchronous constructions, agent structure that also can be in synchronous construction pilot tunnel completes main hole with leading
After the button arch construction in hole, liner structure, which turns into, stablizes stress system, and main wide open digging stability is good, is conducive to improving a rate of advance,
Improve integral construction work efficiency simultaneously.
In one alternate embodiment, the step S1 is specifically included：Each pilot tunnel is excavating time-division multiple sections progress,
For any one pilot tunnel, top bar, middle step are from top to bottom excavated successively and is got out of a predicament or an embarrassing situation, is applied after each bench excavation is complete
Work to should step preliminary bracing structure and interim inverted arch.
In one alternate embodiment, it is described to should step preliminary bracing structure include steelframe, reinforced mesh and
Lock foot anchoring stock.
In one alternate embodiment, the step S2 is specifically included：
In middle drift construction inverted arch and middle column foundation, the interim inverted arch and middle step of top bar are removed in center pillar position
Interim inverted arch, constructed after dismounting center pillar and middle plate, and in the reserved connectors with plate bar connecting in main hole of Zhong Banchu, in
Post completes section construction back timber and Arch lining structure, the reserved connector with main hole lining cutting bar connecting of liner structure；
Side hole is according to the sequence construction side wall lining structure by arch springing, haunch and vault simultaneously, and applies arch springing, arch respectively
The false stull of waist and vault, the reserved connector with main hole Arch lining bar connecting of keystone of lining cutting.
In one alternate embodiment, the step S3 is specifically included：
In the side wall lining structure and middle drift agent structure completion section, the advance support knot in main hole of constructing of two side pilot tunnels
Structure, then symmetrically excavates main hole in top bar, the preliminary bracing structure and interim inverted arch of main hole top bar of constructing, and interim inverted arch
It is generally aligned in the same plane with the false stull of side pilot tunnel side wall lining structure；
The preliminary bracing structure of pilot tunnel part in the range of main hole top bar is removed, rack template, assembling reinforcement, reinforcing bar is set up
With the lining cutting bar connecting of side pilot tunnel, casting concrete completes main hole button arch construction.
In one alternate embodiment, the step S4 is specifically included：
Excavate the middle step in main hole, after the completion of remove preliminary bracing structure of the pilot tunnel at middle step；
When being excavated to plate absolute altitude in station, plate in being constructed using floor molding, by slab muscle and middle drift in main hole
The abutment wall reserved steel bar connection of the reserved connector of plate and side pilot tunnel.
Getting out of a predicament or an embarrassing situation for main hole is excavated, pilot tunnel is removed after scraping out in the preliminary bracing structure at place of getting out of a predicament or an embarrassing situation, inverted arch of then constructing
And bottom plate.
In one alternate embodiment, the height of the top bar is 4.5m, and middle step and the height got out of a predicament or an embarrassing situation are
5.5m。
The present invention is further elaborated with reference to specific embodiment.
Embodiment 1
Step 1, by passage of constructing into three pilot tunnels, as shown in figure 1, three pilot tunnels include middle drift 101 and are located at
The side pilot tunnel 102 and side pilot tunnel 103 of middle drift both sides, the advance support for each pilot tunnel of constructing, construct at the top of each pilot tunnel
Advance support.
It should be noted that advance support is to ensure tunnel excavation face stabilizer, that takes is ahead of the palm
Advance support in the ancillary method that sub- face is excavated, the present embodiment is double advanced tubule.
Step 2, using three benching tunnelling methods excavate three pilot tunnels, as shown in Fig. 2 the height of top bar 201 be 4.5m, middle step
202 and 203 height of getting out of a predicament or an embarrassing situation be 5.5m, each pilot tunnel is carried out excavating time-division multiple sections, from top to bottom step excavation,
Constructed after each bench excavation is complete preliminary bracing structure and the interim inverted arch of the step, 204 represent top bar branch at initial stage in figure
Protection structure, 205 represent top bars interim inverted arch, 206 represent top bars lock foot anchoring stock, preliminary bracing structure include steelframe,
Reinforced mesh and lock foot anchoring stock, using first founding steelframe, hanging reinforced mesh on steelframe again, the method for last pneumatically placed concrete is constructed.
It should be noted that after tunnel excavation, release and deformed in right amount for control surrouding rock stress, increase strcture safety and
Need to apply preliminary bracing structure immediately after convenient construction, tunnel excavation.When construction can not form closing structure in time, pass through
Interim inverted arch is set, it is possible to increase the degree of safety of construction, surrouding rock deformation is efficiently controlled.
Step 3, as shown in figure 3, the excavation supporting in middle drift completes section, construct successively inverted arch 301 and middle column foundation are applied
After the completion of work, remove and reserved at the interim inverted arch of center pillar position, construction center pillar 302 and middle plate 303, middle plate 303 and plate in main hole
The connector of reinforcing bar；Center pillar completes section construction back timber 304 and Arch lining, reserves the connector with main hole lining cutting reinforcing bar.
Meanwhile, the pilot tunnel construction side wall lining structure in side：Rack template is set up first and pours the liner structure of arch springing, and is applied
Plus false stull；Then high-supported formwork is connect, the liner structure of haunch abutment wall is poured, slab muscle connector in reserving, and apply
False stull；Continue to connect high-supported formwork, pour the liner structure of arch, while applying temporary support, the side of symmetrical construction two
The liner structure of wall.
Specifically, step 3 includes：
Step 3.1, construct inverted arch 301 and middle column foundation in middle drift, the interim inverted arch of top bar is removed in center pillar position
With the interim inverted arch of middle step, constructed after dismounting center pillar 302 and middle plate 303, and reserved and slab muscle in main hole at middle plate 303
Connector；
Step 3.2, in center pillar complete section construction back timber 304 and Arch lining structure, liner structure is reserved with main hole lining cutting
Reinforcing bar connector；
Step 3.3, side hole step-by-step construction side wall lining, according to by arch springing, haunch, vault sequence construction, and apply respectively
Plus the false stull 305,306,307 of arch springing, haunch and vault, keystone liner structure is reserved with main hole Arch lining reinforcing bar
The connector of connection.
It should be noted that inverted arch is the reverse arch that tunnel bottom is arranged on for improvement top supporting construction stress condition
Shape structure, is one of chief component of tunnel structure, and on the one hand the strata pressure on tunnel top is passed through tunnel side by it
Load on road surface is effectively delivered to underground by wall construction, but also effectively resistance tunnel understratum transmit it is anti-
Power.Inverted arch constitutes tunnel entirety with lining cutting, increases structural stability.
It should be noted that lining cutting is referred to prevent surrouding rock deformation or caving in, along tunnel trunk periphery reinforced concrete
The permanent supporting construction that the materials such as soil are built.
Step 4, as shown in figure 4, both sides pilot tunnel abutment wall liner structure and middle drift agent structure complete section, construction master
The advance support structure in hole, after the completion of, top bar 401 symmetrically excavates main hole, the preliminary bracing structure 402 for main hole top bar of constructing
With interim inverted arch 403, and interim inverted arch 403 and the false stull of side pilot tunnel side wall lining structure 404 be generally aligned in the same plane.
Step 5, as shown in figure 5, removing the preliminary bracing structure 501 of pilot tunnel part in the range of main hole top bar, set up branch
Frame template, assembling reinforcement, reinforcing bar and side pilot tunnel lining cutting bar connecting, casting concrete complete main hole button arch 502 and constructed.
Step 6, after button arch concrete reaches design strength, plate in excavating in main hole step and constructing.
6.1st, excavate the middle step in main hole, after the completion of remove pilot tunnel preliminary bracing structure；
6.2nd, when being excavated to Board position in station, plate in being constructed using floor molding, reinforcing bar reserves steel with plate in middle drift
Muscle connector and the connection of side pilot tunnel abutment wall reserved steel bar.
Step 7, excavate main hole and get out of a predicament or an embarrassing situation, pilot tunnel is removed after scraping out in the preliminary bracing structure at place of getting out of a predicament or an embarrassing situation, is then applied
Work inverted arch and bottom plate.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (7)
1. a kind of construction method of Underground Subway Station, it is characterised in that including：
S1, using the pilot tunnel of benching tunnelling method section construction three, and each bench excavation it is complete after construction to should step branch at initial stage
Protection structure and interim inverted arch, three pilot tunnel include middle drift and the side pilot tunnel of the middle drift both sides；
S2, excavation supporting completion section construction inverted arch, center pillar, back timber and Arch lining in the middle drift, while side of constructing is led
The side wall lining in hole simultaneously applies false stull；
S3, liner structure and middle drift agent structure the completion section in side pilot tunnel abutment wall, the top bar for excavating main hole are simultaneously constructed just
Phase supporting construction, the Arch lining in main hole of then constructing completes button arch；And
In S4, the main hole of excavation, get out of a predicament or an embarrassing situation and inverted arch of constructing.
2. the construction method of Underground Subway Station as claimed in claim 1, it is characterised in that the step S1 is specifically included：
Each pilot tunnel is excavating time-division multiple sections progress, and for any one pilot tunnel, top bar, middle step are from top to bottom excavated successively
And get out of a predicament or an embarrassing situation, after each bench excavation is complete construction to should step preliminary bracing structure and interim inverted arch.
3. the construction method of Underground Subway Station as claimed in claim 2, it is characterised in that it is described to should step initial stage
Supporting construction includes steelframe, reinforced mesh and lock foot anchoring stock.
4. the construction method of Underground Subway Station as claimed in claim 3, it is characterised in that the step S2 is specifically included：
In middle drift construction inverted arch and middle column foundation, the interim inverted arch of top bar and facing for middle step are removed in center pillar position
When inverted arch, constructed after dismounting center pillar and middle plate, and in the reserved connectors with plate bar connecting in main hole of Zhong Banchu are complete in center pillar
Into section construction back timber and Arch lining structure, the reserved connector with main hole lining cutting bar connecting of liner structure；
While sequence construction side wall lining structure of the side hole according to arch springing, haunch and vault, and apply arch springing, haunch and arch respectively
The false stull on top, the reserved connector with main hole Arch lining bar connecting of keystone of lining cutting.
5. the construction method of Underground Subway Station as claimed in claim 4, it is characterised in that the step S3 is specifically included：
Section is completed in the side wall lining structure and middle drift agent structure of two side pilot tunnels, the advance support structure in main hole of constructing,
Main hole top bar is then symmetrically excavated, the preliminary bracing structure and interim inverted arch of main hole top bar of constructing, and interim inverted arch and side
The false stull of pilot tunnel side wall lining structure is generally aligned in the same plane；
The preliminary bracing structure of pilot tunnel part in the range of main hole top bar is removed, rack template is set up, while assembling reinforcement, reinforcing bar
With the lining cutting bar connecting of side pilot tunnel, casting concrete completes main hole button arch construction.
6. the construction method of Underground Subway Station as claimed in claim 5, it is characterised in that the step S4 is specifically included：
Excavate the middle step in main hole, after the completion of remove preliminary bracing structure of the pilot tunnel at middle step；
When being excavated to plate absolute altitude in station, plate in being constructed using floor molding is pre- by the middle plate of slab muscle in main hole and middle drift
The abutment wall reserved steel bar connection of the connector and side pilot tunnel that stay.
Excavate getting out of a predicament or an embarrassing situation for main hole, after the completion of remove preliminary bracing structure of the pilot tunnel at place of getting out of a predicament or an embarrassing situation, subsequent construction inverted arch and bottom
Plate.
7. the construction method of Underground Subway Station as claimed in claim 2, it is characterised in that the top bar
It is highly 4.5m, middle step and the height got out of a predicament or an embarrassing situation are 5.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710308787.1A CN107120119B (en) | 2017-05-04 | 2017-05-04 | The construction method of Underground Subway Station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710308787.1A CN107120119B (en) | 2017-05-04 | 2017-05-04 | The construction method of Underground Subway Station |
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| CN107120119A true CN107120119A (en) | 2017-09-01 |
| CN107120119B CN107120119B (en) | 2019-06-04 |
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| CN201710308787.1A Active CN107120119B (en) | 2017-05-04 | 2017-05-04 | The construction method of Underground Subway Station |
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| CN109854280A (en) * | 2019-03-05 | 2019-06-07 | 中铁工程设计咨询集团有限公司 | Core Soil bearing-type support system and its construction method for tunneling subway station |
| CN110259490A (en) * | 2019-06-13 | 2019-09-20 | 广州穗岩土木科技股份有限公司 | A kind of Underground Subway Station construction method |
| CN112302684A (en) * | 2020-10-27 | 2021-02-02 | 中铁第一勘察设计院集团有限公司 | Large-volume tunnel open cut tunnel structure adopting step-by-step pouring and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109854280A (en) * | 2019-03-05 | 2019-06-07 | 中铁工程设计咨询集团有限公司 | Core Soil bearing-type support system and its construction method for tunneling subway station |
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| CN110259490A (en) * | 2019-06-13 | 2019-09-20 | 广州穗岩土木科技股份有限公司 | A kind of Underground Subway Station construction method |
| CN112302684A (en) * | 2020-10-27 | 2021-02-02 | 中铁第一勘察设计院集团有限公司 | Large-volume tunnel open cut tunnel structure adopting step-by-step pouring and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107120119B (en) | 2019-06-04 |
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