CN107120119B - The construction method of Underground Subway Station - Google Patents
The construction method of Underground Subway Station Download PDFInfo
- Publication number
- CN107120119B CN107120119B CN201710308787.1A CN201710308787A CN107120119B CN 107120119 B CN107120119 B CN 107120119B CN 201710308787 A CN201710308787 A CN 201710308787A CN 107120119 B CN107120119 B CN 107120119B
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- Prior art keywords
- arch
- construction
- 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
Abstract
The invention discloses a kind of construction methods of Underground Subway Station, it include: using three pilot tunnel of benching tunnelling method section construction, and preliminary bracing structure and the interim inverted arch for the corresponding step of constructing after each bench excavation is complete, three pilot tunnel includes the side pilot tunnel of middle drift and the middle drift two sides；Section construction inverted arch, center pillar, top beam 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 and middle drift main structure complete section, excavate 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 it excavates in main hole, get out of a predicament or an embarrassing situation and inverted arch of constructing.The present invention can more pilot tunnel synchronous constructions, after completing the button arch construction of main hole, liner structure, which becomes, stablizes stress system, and main wide open digging stability is good, while improving integral construction work efficiency.
Description
Technical field
The present invention relates to Underground Subway Station fields.It is more particularly related to which a kind of Underground Subway Station is applied
Work method.
Background technique
In recent years, China's urban construction develops rapidly, and Urban Rail Transit Project scale is unprecedented.It is handed in city rail
It in logical Process of Engineering Construction, is restricted by traffic data process and surrounding enviroment, Station is a kind of common station construction form.Ground
The general buried depth in iron car station is shallower, and Station section span and height are larger, and shallow mining method risk is larger, general using more
Pilot tunnel construction, common such as bilateral wall approach, middle hole method, column hole method, cavern-pile method, but generally existing pilot tunnel working procedure are staggeredly dry
It disturbs, the low problem of construction efficiency.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of construction parties of Underground Subway Station using three pilot tunnel synchronous constructions
Method, pilot tunnel interior main body structure construction can synchronize progress and gradually remove gib after the completion of main hole button arch construction, complete master
Body structure residual part, can provide construction efficiency.
In order to realize these purposes and other advantages according to the present invention, a kind of applying for Underground Subway Station is provided
Work method, comprising:
S1, using three pilot tunnel of benching tunnelling method section construction, and after each bench excavation is complete, construction corresponds to the first of the step
Phase supporting and interim inverted arch, three pilot tunnel includes the side pilot tunnel of middle drift and the middle drift two sides；
S2, excavation supporting completion section construction inverted arch, center pillar, top beam 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 main structure the completion section in side pilot tunnel abutment wall, excavate the top bar in main hole and apply
Work preliminary bracing structure, the Arch lining and button arch in main hole of then constructing；And
S4, it excavates in main hole, 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 successively excavates top bar, middle step and leave from office
Rank, the preliminary bracing structure for the step of constructing after each bench excavation is complete and interim inverted arch.
Preferably, the preliminary bracing structure of the correspondence step includes 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, construct after dismounting center pillar and middle plate, and in the reserved connector being connect with slab muscle in main hole of Zhong Banchu, in
Column completes section construction top beam and Arch lining structure, the reserved connector connecting with main hole lining cutting reinforcing bar of liner structure；
Side hole is according to the sequence construction side wall lining structure for pressing arch springing, haunch and vault simultaneously, and applies arch springing, arch respectively
The false stull of waist and vault, the reserved connector being connect with main hole Arch lining reinforcing bar of the keystone of lining cutting.
Preferably, the step S3 is specifically included:
Section, the advance support knot in main hole of constructing are completed in the side wall lining structure and middle drift main structure of two side pilot tunnels
Structure then symmetrically excavates main hole in top bar, the preliminary bracing structure for main hole top bar of constructing and interim inverted arch, and interim inverted arch
It is generally aligned in the same plane with the false stull of side pilot tunnel side wall lining structure；
It removes main hole to appear on the stage the preliminary bracing structure of pilot tunnel part in order range, sets up rack template, while assembling reinforcement,
Reinforcing bar is connect with the lining cutting reinforcing bar of side pilot tunnel, casting concrete, completes the construction of main hole button arch.
Preferably, the step S4 is specifically included:
The middle step in main hole is excavated, removes preliminary bracing structure of the pilot tunnel at middle step after the completion；
When being excavated to plate absolute altitude in station, using floor molding construct in plate, will be in main hole in slab muscle and middle drift
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, removes preliminary bracing structure of the pilot tunnel at place of getting out of a predicament or an embarrassing situation, inverted arch of then constructing after the completion
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 is include at least the following beneficial effects: this method can more pilot tunnel synchronous constructions, complete main hole and pilot tunnel
After button arch construction, liner structure, which becomes, stablizes stress system, and main wide open digging stability is good, while improving integral construction work efficiency.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the constructing structure schematic diagram of step S1 in the embodiment of the present invention 1；
Fig. 2 is the constructing structure schematic diagram of step S2 in the embodiment of the present invention 1；
Fig. 3 is the constructing structure schematic diagram of step S3 in the embodiment of the present invention 1；
Fig. 4 is the constructing structure schematic diagram of step S4 in the embodiment of the present invention 1；
Fig. 5 is the constructing structure schematic diagram of step S5 in the embodiment of the present invention 1.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
In order to overcome pilot tunnel working procedure existing for shallow mining method in the prior art staggeredly to interfere, construction efficiency is low to be asked
Topic, the present invention provides a kind of construction methods of Underground Subway Station, comprising:
Using the construction method of the Underground Subway Station of three pilot tunnel synchronous constructions, pilot tunnel interior main body structure construction can be synchronized
It carries out, after the completion of main hole button arch construction, gradually removes gib, complete main structure remainder, construction work can be improved
Effect.
In order to realize these purposes and other advantages according to the present invention, a kind of construction party of Underground Subway Station is provided
Method, comprising:
S1, using three pilot tunnel of benching tunnelling method section construction, and the initial stage branch for the step of constructing after each bench excavation is complete
Shield and interim inverted arch, three pilot tunnel includes the side pilot tunnel of middle drift and the middle drift two sides；
S2, excavation supporting completion section construction inverted arch, center pillar, top beam 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 main structure the completion section in side pilot tunnel abutment wall, excavate the top bar in main hole and apply
Work preliminary bracing structure, the Arch lining and button arch in main hole of then constructing；And
S4, it excavates in main hole, get out of a predicament or an embarrassing situation and inverted arch of constructing.
The present invention can more pilot tunnel synchronous constructions, also can main structure in synchronous construction pilot tunnel, complete main hole and lead
After the button arch construction in hole, liner structure, which becomes, stablizes stress system, and main wide open digging stability is good, is conducive to improve a rate of advance,
Integral construction work efficiency is improved simultaneously.
In one alternate embodiment, the step S1 is specifically included: each pilot tunnel is excavating time-division multiple segments progress,
For any one pilot tunnel, from top to bottom successively excavates top bar, middle step and get out of a predicament or an embarrassing situation, applied after each bench excavation is complete
Work correspond to the step preliminary bracing structure and interim inverted arch.
In one alternate embodiment, the preliminary bracing structure of the correspondence step 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, construct after dismounting center pillar and middle plate, and in the reserved connector being connect with slab muscle in main hole of Zhong Banchu, in
Column completes section construction top beam and Arch lining structure, the reserved connector connecting with main hole lining cutting reinforcing bar of liner structure；
Side hole is according to the sequence construction side wall lining structure for pressing arch springing, haunch and vault simultaneously, and applies arch springing, arch respectively
The false stull of waist and vault, the reserved connector being connect with main hole Arch lining reinforcing bar of the keystone of lining cutting.
In one alternate embodiment, the step S3 is specifically included:
Section, the advance support knot in main hole of constructing are completed in the side wall lining structure and middle drift main structure of two side pilot tunnels
Structure then symmetrically excavates main hole in top bar, the preliminary bracing structure for main hole top bar of constructing and interim inverted arch, and interim inverted arch
It is generally aligned in the same plane with the false stull of side pilot tunnel side wall lining structure；
It removes main hole to appear on the stage the preliminary bracing structure of pilot tunnel part in order range, sets up rack template, assembling reinforcement, reinforcing bar
It is connect with the lining cutting reinforcing bar of side pilot tunnel, casting concrete, completes main hole button arch construction.
In one alternate embodiment, the step S4 is specifically included:
The middle step in main hole is excavated, removes preliminary bracing structure of the pilot tunnel at middle step after the completion；
When being excavated to plate absolute altitude in station, using floor molding construct in plate, will be in main hole in slab muscle and middle drift
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, preliminary bracing structure of the pilot tunnel at place of getting out of a predicament or an embarrassing situation, inverted arch of then constructing are removed after scraping out
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 combined with specific embodiments below.
Embodiment 1
Step 1 enters three pilot tunnels by construction channel, 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 two sides, the advance support for each pilot tunnel of constructing are constructed at the top of each pilot tunnel
Advance support.
It should be noted that advance support is to guarantee tunnel excavation face stabilizer, that takes is ahead of the palm
The ancillary measure that sub- face is excavated, the advance support in the present embodiment is double advanced tubule.
Step 2 excavates three pilot tunnels using three benching tunnelling methods, as shown in Fig. 2, the height of top bar 201 is 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 segments, from top to bottom step excavation,
Construct after each bench excavation is complete the step preliminary bracing structure and interim inverted arch, 204 indicate top bar initial stage branch in figure
Protection structure, 205 indicate top bars interim inverted arch, 206 indicate top bars lock foot anchoring stock, preliminary bracing structure include steelframe,
Reinforced mesh and lock foot anchoring stock, use first found steelframe, hang reinforced mesh on steelframe again, the method construction of last pneumatically placed concrete.
It should be noted that after tunnel excavation, discharge and deform in right amount for control surrouding rock stress, increase strcture safety with
Facilitate construction, needs to apply preliminary bracing structure immediately after tunnel excavation.When construction cannot form closing structure in time, pass through
Interim inverted arch is set, can be improved the degree of safety of construction, efficiently control surrouding rock deformation.
Step 3, as shown in figure 3, the excavation supporting in middle drift completes section, successively construct inverted arch 301 and middle column foundation are applied
After the completion of work, the interim inverted arch of center pillar position, construction center pillar 302 and middle plate 303 are removed, is reserved at middle plate 303 and plate in main hole
The connector of reinforcing bar；Center pillar completes section construction top beam 304 and Arch lining, reserves the connector with main hole lining cutting reinforcing bar.
Meanwhile in side pilot tunnel construction side wall lining structure: setting up rack template first and pour the liner structure of arch springing, and apply
Add false stull；Then high-supported formwork is connect, the liner structure of haunch abutment wall is poured, reserves middle slab muscle connector, and apply
False stull；After continued access high-supported formwork, the liner structure of arch is poured, while applying temporary support, symmetrical construction two sides
The liner structure of wall.
Specifically, step 3 includes:
Step 3.1 is constructed inverted arch 301 and middle column foundation in middle drift, removes the interim inverted arch of top bar in center pillar position
With the interim inverted arch of middle step, construct 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 completes section construction top beam 304 and Arch lining structure in center pillar, and liner structure is reserved and 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
Add the false stull 305,306,307 of arch springing, haunch and vault, keystone liner structure is reserved and main hole Arch lining reinforcing bar
The connector of connection.
It should be noted that inverted arch is that the reversed arch of tunnel bottom is arranged in improve top supporting construction stress condition
Shape structure is one of chief component of tunnel structure, on the one hand the strata pressure on tunnel top is passed through tunnel side by it
Load on road surface is effectively transmitted to underground by wall construction, but also effectively resist tunnel understratum transmit it is anti-
Power.Inverted arch and lining cutting constitute tunnel entirety, increase structural stability.
It should be noted that lining cutting refers to prevent surrouding rock deformation or collapsing, 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, two sides pilot tunnel abutment wall liner structure and middle drift main structure complete section, construction master
The advance support structure in hole, after the completion, 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 are generally aligned in the same plane.
Step 5 is appeared on the stage the preliminary bracing structure 501 of pilot tunnel part in order range as shown in figure 5, removing main hole, sets up branch
Frame template, assembling reinforcement, reinforcing bar are connect with side pilot tunnel lining cutting reinforcing bar, casting concrete, complete main 502 construction of hole button arch.
Step 6, after button arch concrete reaches design strength, excavate in main hole step and construct in plate.
6.1, the middle step in main hole is excavated, removes pilot tunnel preliminary bracing structure after the completion；
6.2, when being excavated to Board position in station, using floor molding construct in plate, plate reserves steel in reinforcing bar and middle drift
Muscle connector and the connection of side pilot tunnel abutment wall reserved steel bar.
Step 7 excavates getting out of a predicament or an embarrassing situation for main hole, and 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 the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (4)
1. a kind of construction method of Underground Subway Station characterized by comprising
S1, using three pilot tunnel of benching tunnelling method section construction, and after each bench excavation is complete, construction corresponds to the initial stage branch of the step
Protection structure and interim inverted arch, three pilot tunnel includes the side pilot tunnel of middle drift and the middle drift two sides；The step S1 tool
Body includes: that each pilot tunnel is excavating time-division multiple segments progress, and for any one pilot tunnel, from top to bottom successively excavation is appeared on the stage
It rank, middle step and gets out of a predicament or an embarrassing situation, the preliminary bracing structure for the corresponding step of constructing after each bench excavation is complete and interim inverted arch；
The preliminary bracing structure of the correspondence step includes steelframe, reinforced mesh and lock foot anchoring stock；
S2, excavation supporting completion section construction inverted arch, center pillar, top beam and Arch lining in the middle drift, while side of constructing is led
The side wall lining in hole simultaneously applies false stull；
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, construct after dismounting center pillar and middle plate, and in the reserved connector connecting with slab muscle in main hole of Zhong Banchu are complete in center pillar
At section construction top beam and Arch lining structure, the reserved connector being connect with main hole lining cutting reinforcing bar of liner structure；
Side hole and applies arch springing, haunch and arch according to the sequence construction side wall lining structure of arch springing, haunch and vault respectively simultaneously
The false stull on top, the reserved connector being connect with main hole Arch lining reinforcing bar of the keystone of lining cutting；
S3, liner structure and middle drift main structure the completion section in side pilot tunnel abutment wall, excavate the top bar in main hole and construct just
Phase supporting construction, the Arch lining in main hole of then constructing complete button arch；And
S4, it excavates in main hole, get out of a predicament or an embarrassing situation and inverted arch of constructing.
2. the construction method of Underground Subway Station as described in claim 1, which is characterized in that the step S3 is specifically included:
Two side pilot tunnels side wall lining structure and middle drift main structure complete section, the advance support structure in main hole of constructing,
Main hole top bar is symmetrically then excavated, the preliminary bracing structure for main hole top bar of constructing and interim inverted arch, and interim inverted arch and side
The false stull of pilot tunnel side wall lining structure is generally aligned in the same plane；
It removes main hole to appear on the stage the preliminary bracing structure of pilot tunnel part in order range, sets up rack template, while assembling reinforcement, reinforcing bar
It is connect with the lining cutting reinforcing bar of side pilot tunnel, casting concrete, completes main hole button arch construction.
3. the construction method of Underground Subway Station as claimed in claim 2, which is characterized in that the step S4 is specifically included:
The middle step in main hole is excavated, removes preliminary bracing structure of the pilot tunnel at middle step after the completion；
When being excavated to plate absolute altitude in station, using floor molding construct in plate, the middle plate of slab muscle in main hole and middle drift is pre-
The abutment wall reserved steel bar of the connector and side pilot tunnel that stay connects；
Getting out of a predicament or an embarrassing situation for main hole is excavated, removes pilot tunnel after the completion at the preliminary bracing structure at place of getting out of a predicament or an embarrassing situation, then construct inverted arch and bottom
Plate.
4. the construction method of Underground Subway Station as described in claim 1, which is characterized in that the height of the top bar is
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 |
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| 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 |
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| CN201710308787.1A CN107120119B (en) | 2017-05-04 | 2017-05-04 | The construction method of Underground Subway Station |
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| CN107120119A CN107120119A (en) | 2017-09-01 |
| CN107120119B true CN107120119B (en) | 2019-06-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109854280B (en) * | 2019-03-05 | 2023-09-15 | 中铁工程设计咨询集团有限公司 | Core soil bearing type supporting system for underground excavation of subway station and construction method thereof |
| CN110259490B (en) * | 2019-06-13 | 2021-02-19 | 广州穗岩土木科技股份有限公司 | Subway underground excavation 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 |
|---|---|---|---|---|
| CN202707075U (en) * | 2012-07-23 | 2013-01-30 | 中铁一局集团有限公司 | Long-span subway station main structure constructed based on column and arch method |
| CN103256052B (en) * | 2013-05-17 | 2015-04-15 | 北京国道通公路设计研究院股份有限公司 | Construction method for integral straight middle wall type double-arch tunnel |
| CN103821167A (en) * | 2014-03-17 | 2014-05-28 | 北京市政建设集团有限责任公司 | Construction method for subway station body |
| CN104632227B (en) * | 2014-12-22 | 2017-02-22 | 中铁十九局集团轨道交通工程有限公司 | Subway station excavation technology of single-layer beam arch structure |
| CN104632245A (en) * | 2015-02-04 | 2015-05-20 | 北京市政建设集团有限责任公司 | Method using multi-pilot-tunnel expanding excavation large-diameter shield tunnel for building subway station |
| CN204941545U (en) * | 2015-09-19 | 2016-01-06 | 中铁二十二局集团第一工程有限公司 | Station boring construction system |
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