CN207032282U - A kind of connected structure for abutting existing transfer station on a large scale - Google Patents
A kind of connected structure for abutting existing transfer station on a large scale Download PDFInfo
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- CN207032282U CN207032282U CN201720810149.5U CN201720810149U CN207032282U CN 207032282 U CN207032282 U CN 207032282U CN 201720810149 U CN201720810149 U CN 201720810149U CN 207032282 U CN207032282 U CN 207032282U
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Abstract
The utility model discloses a kind of connected structure for abutting existing transfer station on a large scale to include the building up station of A lines and the newly-built station of B lines, the two joining place forms transfer station, continuously punched on the side wall of A line building up station, form the multiple passways communicated with the newly-built station of B lines, the passway includes the hole at existing structure, back timber at negative one layer hole, back timber at minus two layers of hole, pillar at negative one layer hole, pillar at minus two layers of hole, the temporary support column and full hall scaffold of axle power can be applied, back-up sand steel pipe column inside at newly-built structure, steel pipe column slab column connection reinforcement ring, steel pipe column reinforcement welding reinforcing ring, steel pipe column baseplate reinforcing bar welds reinforcing ring, the recessed ring beam of back plate connections and plate.The utility model improves water resistance by adding infiltration path at the recessed longeron growth bottom deformation seam of bottom plate, and the deformation of control existing structure and internal force conversion are highly beneficial.
Description
Technical field
The utility model belongs to subway engineering field, and in particular to a kind of connected structure for abutting existing transfer station on a large scale.
Background technology
Build subway and have become and solve the problems, such as one of effective way of Modern Traffic, with metro construction scale
Constantly increase, transfer station occupy increasingly consequence in Urban Rail Transit.The transfer of the old and new's subway line
And the connection problem of subway station and existing subway station is not built in same period construction after necessarily referring to.Designer first builds subway in design
During station, transfer interface can be typically reserved, so that follow-up Station Design is constructed.
Due to Modern Urban Development excessive velocities, subway gauze is constantly in adjustment state, sometimes in not reserved transfer
Also transfer station occurs in the case of condition, such as Metro Line 1 in Nanjing and No. 4 line transfer stops drum tower station.In such engineering,
If do not take the deformation of control building up station and cut measure and the method for existing structure, it will to the safety of existing subway station
Produce totally unfavorable influence.Especially when the later stage builds, subway horizontal span is big, surrounding enviroment are complicated, can not utilize temporary support
The station of existing structure deformation is controlled, it is slightly unreasonable that it is connected design and construction scheme, it will causing existing structure to produce can not
Inverse destruction, causes engineering accident what is more, jeopardizes the Metro Passenger security of the lives and property.
Utility model content
The utility model proposes that the purpose is to provided a kind of a wide range of adjoining both to solve the problems, such as that prior art is present
There is the connected structure of transfer station.
The technical solution of the utility model is：A kind of connected structure for abutting existing transfer station on a large scale, including A lines
Building up station and B lines newly-built station, the two joining place formed transfer station, connect on the side wall of A line building up station
It is continuous to punch, form the multiple passways communicated with the newly-built station of B lines, the passway includes hole at existing structure, born
Back timber at one layer of hole, back timber at minus two layers of hole, pillar at negative one layer hole, pillar at minus two layers of hole, axle power can be applied
Temporary support column and full hall scaffold, newly-built structure inside back-up sand steel pipe column, steel pipe column slab column connection reinforcement ring,
Steel pipe column reinforcement welding reinforcing ring, steel pipe column baseplate reinforcing bar welding reinforcing ring, the recessed ring beam of back plate connections and plate, it is described interim
Temporary support column in support post and full hall scaffold is steel pipe support, among it equipped with jack, can remove side wall
When put in time at side wall, steel pipe column reinforcement welding reinforcing ring is the annular slab that is welded of steel plate, and newly-built station structure is indulged
Beam and crossbeam reinforcing bar are welded on reinforcing ring, ensure reinforcing steel bar bear；Back plate connections in the recessed ring beam of back plate connections and plate
Recessed ring beam is the beam that is poured under newly-built structure bottom plate, and it can be against in existing building enclosure, complete horizontal direction power transmission and
Water expandable waterstop can be added inside, strengthen waterproof slab ability.
The top plate of the building up station, middle plate, at building up station bottom plate outside respectively with the cast-in-place reinforcement longeron of newly-built structure,
The reinforcement longeron include negative one layer reinforcement longeron and connecting plate, minus two layers of reinforcement longeron and connecting plate, bottom plate reinforcement longeron and connecting plate,
Movement joint, implantation reinforcing bar, cast-in-place negative one layer reinforcement pillar, minus two layers of reinforcement pillar at the reinforcement longeron, built in reverse hierarchical
Reinforcement pillar reinforcing bar is connected by reinforcing bar connector in journey.
The connected structure applies station according to site condition construction fender post, back-up sand steel tube column foundation, back-up sand steel pipe column
Negative one layer reinforcement longeron and connecting plate complete top plate connection, reserve negative one layer reinforcement pillar reinforcing bar interface by reinforcing bar connector, treat
After top plate reaches design strength, earthing is backfilled, makees successively earth excavation, construct newly-built station negative one layer side wall, middle plate to subinverse
And minus two layers of reinforcement longeron and connecting plate, negative one layer reinforcement pillar, minus two layers of reinforcement pillar reinforcing bar is reserved by reinforcing bar connector and connect
Mouthful；After middle plate reaches design strength, make successively earth excavation to subinverse, construction station minus two layers of side wall, bottom plate, bottom plate is recessed
Longeron and connecting plate, minus two layers of reinforcement pillar；After bottom plate reaches design strength, set in building up station negative one layer and minus two layer frame
Temporary support column and full hall scaffold, then segmentation abolish, the side wall in tunnel opening area building up station region.
The beneficial effects of the utility model are as follows：
（1）It is strict to control building up station deformation using newly-built structure lateral rigidity using top-down invers method.
（2）Connection existing structure is layered by top-down invers method so that existing structure internal force change substep is changed, and stress is more
Rationally.
（3）First apply reinforced structure and interim upright supports, the vertical deformation of strict guarantee existing structure and safety.
（4）Staged and layered abolishes existing structure, stronger to existing structure stress check calculation.
（5）Scheme is abolished using static(al), noise pollution is small.
（6）Using top-down invers method, surrounding enviroment are influenceed and traffic impact is small.
Brief description of the drawings
Fig. 1 is the position view of newly-built structure and existing structure in the utility model；
Fig. 2 is the sectional view in O-O sections in Fig. 1；
Fig. 3 is the assembling schematic diagram of back-up sand steel pipe column in the utility model；
Fig. 4 is the structural representation of steel pipe column slab column connection reinforcement ring in the utility model；
Fig. 5 is the structural representation of steel pipe column reinforcement welding reinforcing ring in the utility model；
Fig. 6 is the structural representation of steel pipe column baseplate reinforcing bar welding reinforcing ring in the utility model；
Fig. 7 is newly-built structure longeron and crossbeam reinforcing bar and steel column welding schematic diagram in the utility model；
Fig. 8 ~ 17 are the working procedure figures of construction method in the utility model；
Wherein：
Back timber at 2 minus two layers of hole of back timber at 1 negative one layer hole
Pillar at the negative one layer hole of 3 building up station bottom plate 4
The negative one layer reinforcement longeron of pillar 6 and connecting plate at 5 minus two layers of hole
7 minus two layers of reinforcement longeron and the bottom plate reinforcement longeron of connecting plate 8 and connecting plate
9 negative one layer reinforcement pillar, 10 minus two layers of reinforcement pillar
The back-up sand steel pipe column of 11 movement joint 12
The recessed ring beam of 13 back plate connections and the building up station structural envelope structure of plate 14
The steel pipe column reinforcement welding reinforcing ring of 15 steel pipe column slab column connection reinforcement ring 16
17 steel pipe column baseplate reinforcing bars welding reinforcing ring 18 is implanted into reinforcing bar
The slightly expanded concrete beam of 19 reinforcing bar connector 20
Plate in the newly-built structure of 21 newly-built structure top plate 22
23 newly-built structure bottom plates
24 temporary support columns and full hall scaffold
The back-up sand steel tube column foundation of 25 water expandable waterstop 26
0 hole.
Embodiment
Hereinafter, the utility model is described in detail with embodiment referring to the drawings：
As shown in Fig. 1 ~ 7, a kind of connected structure for abutting existing transfer station on a large scale, include the building up station of A lines
With the newly-built station of B lines, the two joining place forms transfer station, continuously punched on the side wall of A line building up station, is formed
The multiple passways communicated with the newly-built station of B lines, the passway include hole 0 at existing structure, at negative one layer hole
Back timber 2 at back timber 1, minus two layers of hole, pillar 4 at negative one layer hole, pillar 5 at minus two layers of hole, the interim of axle power can be applied
Back-up sand steel pipe column 12, steel pipe column slab column connection reinforcement ring 15 inside at support post and full hall scaffold 24, newly-built structure,
Steel pipe column reinforcement welding reinforcing ring 16, steel pipe column baseplate reinforcing bar welding reinforcing ring 17, the recessed ring beam of back plate connections and plate 13, institute
It is steel pipe support to state the temporary support column in temporary support column and full hall scaffold 24, can be among it equipped with jack
Put in time at side wall when removing side wall, steel pipe column reinforcement welding reinforcing ring 16 is the annular slab that steel plate is welded, newly-built
Station structure longeron and crossbeam reinforcing bar are welded on reinforcing ring, ensure reinforcing steel bar bear；In the recessed ring beam of back plate connections and plate 13
The recessed ring beam of back plate connections be the beam that is poured under newly-built structure bottom plate, it can be against in existing building enclosure, complete water
Square to power transmission and water expandable waterstop 25 can be added inside, strengthen waterproof slab ability.
The top plate of the building up station, middle plate, outside is indulged with the cast-in-place reinforcement of newly-built structure respectively at building up station bottom plate 3
Beam, the reinforcement longeron include negative one layer reinforcement longeron and connecting plate 6, minus two layers of reinforcement longeron and connecting plate 7, bottom plate reinforcement longeron and
Connecting plate 8, movement joint 11, implantation reinforcing bar 18, cast-in-place negative one layer reinforcement pillar 9, minus two layers of reinforcement pillar 10 at the reinforcement longeron,
Reinforcement pillar reinforcing bar is connected by reinforcing bar connector 19 during reverse hierarchical is built.
The connected structure applies according to site condition construction fender post, back-up sand steel tube column foundation 26, back-up sand steel pipe column 12
Station negative one layer reinforcement longeron and connecting plate 6 complete top plate connection, and the reinforcing bar of negative one layer reinforcement pillar 9 is reserved by reinforcing bar connector 19
Interface, after top plate reaches design strength, backfills earthing, makees successively earth excavation, newly-built station negative one layer side of constructing to subinverse
Wall, middle plate and minus two layers of reinforcement longeron and connecting plate 7, negative one layer reinforcement pillar 9, minus two layers of reinforcement is reserved by reinforcing bar connector 19
The reinforcing bar interface of pillar 10；After middle plate reaches design strength, make successively earth excavation to subinverse, the minus two layers of side wall in station of constructing,
The recessed longeron of bottom plate, bottom plate and connecting plate 13, minus two layers of reinforcement pillar 10；After bottom plate reaches design strength, in building up station
Negative one layer and minus two layer frame set temporary support column and full hall scaffold 24, then segmentation abolish, tunnel opening area building up station area
The side wall in domain.
As shown in Fig. 8 ~ 17, a kind of construction method for the connected structure for abutting existing transfer station on a large scale, including it is following
Step：
（ⅰ）Site preparation, builds that station stanchion is basic and embedded back-up sand steel pipe column 12 the construction later stage；As shown in Figure 8.
（ⅱ）Excavate on the soil body to newly-built structure top plate 21, cut building up station structural envelope structure 14 and agent structure top
Plate part concrete simultaneously retains its reinforcing bar, is implanted into implantation reinforcing bar 18 in building up station top plate, as shown in Figure 9.
（ⅲ）Excavate soil layer to newly-built structure top plate 21 under, laying the later stage build station top plate, beam, post reinforcing bar, apply with
Existing structure connecting portion side wall opening position negative one layer reinforcement longeron and connecting plate 6, negative one layer reinforcement pillar 9, and reserved steel bar connects
19 are refuted, movement joint 11, casting concrete are set, completion is connected with building up station structure roof, treats that concrete strength reaches design
It is required that backfill top plate earth-covering, station top surface recovers normal, as shown in Figure 10.
（ⅳ）Soil layer is excavated into newly-built structure under plate 22, the construction later stage builds plate in station, in existing building enclosure
Tick slot, plate bottom portion space in being filled using slightly expanded concrete beam 20, builds station and building up station building enclosure after connection,
Horizontal direction power transmission at plate in guarantee, as shown in figure 11.
（ⅴ）Plate above building up station structural envelope structure 14 in newly-built station is cut, is applied and existing structure connecting portion
The minus two layers of reinforcement longeron of side wall opening position and connecting plate 7, negative one layer reinforcement longeron and connecting plate 6 and the steel for reserving minus two layers of reinforcement pillar
Muscle connector 19, movement joint 11, casting concrete are set, completion is connected with plate in building up station agent structure, as shown in figure 12.
（ⅵ）Treat step（ⅴ）Middle board concrete reach design strength after, excavate soil layer to newly-built structure bottom plate 23 under,
Construction newly-built structure bottom plate 23, the tick slot in building up station building enclosure, the recessed ring beam of construction back plate connections and plate 13, it is embedded
In building up station building enclosure, ensure horizontal direction power transmission at bottom plate, as shown in figure 13.
（ⅶ）Newly-built station bottom plate above building up station building enclosure is cut, is applied and existing structure connecting portion side wall position
Place's bottom plate reinforcement longeron and connecting plate 8, minus two layers of reinforcement pillar 10 are put, movement joint 11 is set, casting concrete, completed and existing car
Station owner's body structure base slab connects, as shown in figure 14.
（ⅷ）Temporary support column and full hall scaffold 24 are set up inside building up station, as shown in figure 15.
（ⅸ）After connected structure concrete strength reaches design requirement intensity, segmentation cuts existing structure negative one layer side
Wall, retain wall and beam column position reinforcing bar at reserved reinforcement pillar, apply back timber 1 at negative one layer hole, as shown in figure 16.
（ⅹ）After negative one layer back timber concrete reaches design requirement intensity, segmentation cuts the minus two layers of side wall of existing structure,
Retain wall and beam column position reinforcing bar at reserved reinforcement pillar, apply back timber 2 at minus two layers of hole, treat minus two layer concretes intensity knot
Temporary support column and full hall scaffold 24 are removed after to design requirement, completion is connected with existing A lines, as shown in figure 17.
Embodiment 1
It is used in the design and construction of certain subway Line 1 and No. 4 line transfer stops.Because rail network adjusts, No. 4 lines and 1
Number line is changed under the conditions of the reserved transfer in drum tower station, therefore is needed large area to abolish existing Line 1 side wall and carried out transfer company
It is logical.Line 1 is existing F3/B3 station, and No. 4 lines are the newly-built stop of underground two.Line 1 building enclosure uses digging hole filling pile, main
The long 210.7m of body structure, wide 23.05m, deep 21m box concrete structure.No. 4 line joining place foundation ditches wide 49.4m, long 112m.
Technical difficult points are：1. it is closely connected between main body open excavation section and existing Line 1 structure, such as take direct excavation pit
Then the structure of existing Line 1 can be adversely affected；2. the processing between new and old structure, including linking, change between concrete structure
Shape, which seams, puts with structurally waterproof etc.；3. large area abolishes Line 1 existing structure side wall and the structure at Line 1 station and operation will be produced
Raw certain influence, therefore how to refine the Design of Reinforcement for solving Line 1 structure and transformation will be to increase economic results in society, drop
The influence degree of low Line 1 operation is then most important.
After excessive kind of demonstration design, design and construction use utility model illustrated herein.Building enclosure is using stake+anchor cable
Support form, it is 26m that lid, which digs segment length, and the disconnected length of open cut is 86m.Site operation experience, Monitoring Data and building up station operation
Monitoring Data fully proves：Can strictly it be controlled using newly-built structure lateral rigidity and layering interconnection technique using top-down invers method method
Building up station deformation gauge structure safety；Reinforce existing structure in advance using reinforced structure, set temporary support column, segmentation to abolish
The displacement that punches can be controlled, avoids structure from destroying；Embedding re-bar technique and reserved steel bar joint technology are ripe, can guarantee that construction quality；
It is small using static(al) cutting scheme noise, favorable environment protection and civilized construction.
The utility model can be widely popularized into the reconstruction and extension project of subway station, the especially suitable newly-built station work of large span
Journey, engineering can be made safer, economical.
Claims (3)
1. a kind of connected structure for abutting existing transfer station on a large scale, including the newly-built car of the building up station of A lines and B lines
Stand, the two joining place forms transfer station, is continuously punched on the side wall of A line building up station, is formed and the newly-built station of B lines
The multiple passways communicated, it is characterised in that：The passway includes the hole at existing structure（0）, push up at negative one layer hole
Beam（1）, back timber at minus two layers of hole（2）, pillar at negative one layer hole（4）, pillar at minus two layers of hole（5）, axle power can be applied
Temporary support column and full hall scaffold（24）, at newly-built structure inside back-up sand steel pipe column（12）, steel pipe column slab column connect
Connect reinforcing ring（15）, steel pipe column reinforcement welding reinforcing ring（16）, steel pipe column baseplate reinforcing bar welding reinforcing ring（17）, back plate connections
Recessed ring beam and plate（13）, the temporary support column and full hall scaffold（24）In temporary support column be steel pipe support,
It is furnished with jack among it, can be put in time at side wall when removing side wall, steel pipe column reinforcement welding reinforcing ring（16）For steel
The annular slab that plate weld forms, newly-built station structure longeron and crossbeam reinforcing bar are welded on reinforcing ring, ensure reinforcing steel bar bear；Bottom plate
The recessed ring beam in junction and plate（13）In the recessed ring beam of back plate connections be the beam that is poured under newly-built structure bottom plate, it can be supported
In existing building enclosure, complete horizontal direction power transmission and water expandable waterstop can be added inside（25）, strengthen waterproof slab
Ability.
A kind of 2. connected structure for abutting existing transfer station on a large scale according to claim 1, it is characterised in that：It is described
The top plate of building up station, middle plate, building up station bottom plate（3）Place outside respectively with the cast-in-place reinforcement longeron of newly-built structure, the reinforcement
Longeron includes negative one layer reinforcement longeron and connecting plate（6）, minus two layers of reinforcement longeron and connecting plate（7）, bottom plate reinforcement longeron and connecting plate
（8）, movement joint（11）, implantation reinforcing bar（18）, cast-in-place negative one layer reinforcement pillar at the reinforcement longeron（9）, minus two layers of reinforcement post
Son（10）, pass through reinforcing bar connector during reverse hierarchical is built（19）Connect reinforcement pillar reinforcing bar.
A kind of 3. connected structure for abutting existing transfer station on a large scale according to claim 1, it is characterised in that：It is described
Connected structure is according to site condition construction fender post, back-up sand steel tube column foundation（26）, back-up sand steel pipe column（12）, apply station negative one
Layer reinforcement longeron and connecting plate（6）Top plate connection is completed, passes through reinforcing bar connector（19）Reserved negative one layer reinforcement pillar（9）Reinforcing bar connects
Mouthful, after top plate reaches design strength, earthing is backfilled, makees successively earth excavation to subinverse, newly-built station negative one layer side wall of constructing,
Middle plate and minus two layers of reinforcement longeron and connecting plate（7）, negative one layer reinforcement pillar（9）, pass through reinforcing bar connector（19）It is reserved minus two layers
Reinforcement pillar（10）Reinforcing bar interface；After middle plate reaches design strength, make successively earth excavation to subinverse, minus two layers of station of constructing
The recessed longeron of side wall, bottom plate, bottom plate and connecting plate（13）, minus two layers of reinforcement pillar（10）；After bottom plate reaches design strength,
Building up station negative one layer and minus two layer frame set temporary support column and full hall scaffold（24）, then segmentation abolish, tunnel opening area
The side wall in building up station region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720810149.5U CN207032282U (en) | 2017-07-06 | 2017-07-06 | A kind of connected structure for abutting existing transfer station on a large scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720810149.5U CN207032282U (en) | 2017-07-06 | 2017-07-06 | A kind of connected structure for abutting existing transfer station on a large scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207032282U true CN207032282U (en) | 2018-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720810149.5U Withdrawn - After Issue CN207032282U (en) | 2017-07-06 | 2017-07-06 | A kind of connected structure for abutting existing transfer station on a large scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207032282U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119711A (en) * | 2017-07-06 | 2017-09-01 | 中国铁路设计集团有限公司 | A kind of connected structure and construction method for abutting existing transfer station on a large scale |
| CN111878095A (en) * | 2020-08-11 | 2020-11-03 | 中铁十八局集团有限公司 | Construction method for existing underground structure of newly-built channel connection without reserved interface |
-
2017
- 2017-07-06 CN CN201720810149.5U patent/CN207032282U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119711A (en) * | 2017-07-06 | 2017-09-01 | 中国铁路设计集团有限公司 | A kind of connected structure and construction method for abutting existing transfer station on a large scale |
| CN107119711B (en) * | 2017-07-06 | 2022-09-06 | 中国铁路设计集团有限公司 | Connecting structure for large-range adjacent existing transfer station and construction method |
| CN111878095A (en) * | 2020-08-11 | 2020-11-03 | 中铁十八局集团有限公司 | Construction method for existing underground structure of newly-built channel connection without reserved interface |
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Granted publication date: 20180223 Effective date of abandoning: 20220906 |
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| AV01 | Patent right actively abandoned |
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| AV01 | Patent right actively abandoned |