CN105240023B - A kind of method of Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station - Google Patents
A kind of method of Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station Download PDFInfo
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- CN105240023B CN105240023B CN201510614040.XA CN201510614040A CN105240023B CN 105240023 B CN105240023 B CN 105240023B CN 201510614040 A CN201510614040 A CN 201510614040A CN 105240023 B CN105240023 B CN 105240023B
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Abstract
The invention provides a kind of method of Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station, once constructed using Curve Pipe Jacking technology and directly form subway station outside-supporting structure, reduce the soil deformation amount in work progress, concrete is injected into supporting pipeline；Subsequent construction mid-board, it is to avoid mid-board hinders the construction of subway station outside-supporting structure；Then shield duct piece is removed, station two is applied and serves as a contrast and accessory structure；This method has the characteristics of efficiency of construction is high, process is simple, station is substantially reduced to excavate to urban environmental impact, improve shield subway work efficiency, save construction cost, and adapt to city shallow embedding complex geological condition, the Metro Station Structure intensity built using this method is high, and supporting is safe and reliable.
Description
Technical field
The present invention relates to a kind of method for extending shield-tunneling construction subway station, belong to underground engineering trenchless technology field.
Background technology
As China's economic development and the level of urbanization are improved, the key that traffic problems have become restriction urban development is asked
Topic, urgent need to resolve.Shield method subway to alleviation traffic jam, is improved as the important component of Urban Public Transportation Network
Urban development speed, the modernization level in lifting city play huge effect.But it is due to that shield zone distance is short, station
Quantity is more, and shield often has to wait for ability transition after the completion of station, causes the improper driving time excessive, Suporting structure is utilized
Rate is relatively low, causes construction delay phenomenon, increases construction cost, therefore shield station is the master for restricting subway work cycle and cost
Want factor.
At present, the conventional construction method of subway station includes cut and cover method, cap excavation method and subsurface excavation method etc..Cut and cover method is applied to
Broad construction site, disturbs big to urban life, traffic, the influence to environment such as noise and vibrations is blocked for a long time.Lid is dug
Method stud construction joint is more, need to carry out water-proofing treatment, and inconvenience of being unearthed, work efficiency is low, and speed of application is slow.Shallow mining method work
Phase is longer, and influence of the settlement of stratum to adjacent buildings security is larger, and construction risk is big, and construction costs is also very high.
The content of the invention
It is an object of the invention to solve the deficiencies in the prior art, and provide a kind of Curve Pipe Jacking supporting construction enlarging shield
The method of construction subway station, this method has the characteristics of efficiency of construction is high, process is simple, substantially reduces station and excavates to city
City's ambient influnence, improves shield subway work efficiency, saves construction cost, and adapts to city shallow embedding complex geological condition,
The Metro Station Structure intensity built using this method is high, and supporting is safe and reliable.
Realize technical scheme that the object of the invention used for a kind of Curve Pipe Jacking supporting construction extends shield-tunneling construction subway
The method at station, comprises the following steps：
(1) underground space formation shield tunnel is reserved using shield construction subway station, shield tunnel is by shield duct piece
Support, installs vertical temporary support in shield tunnel, and push pipe workbench is installed on shield tunnel top；
(2) pipe jacking equipment is installed on push pipe workbench, symmetric borehole cuts and installed in shield duct piece top flat both sides
Opening arrangement is as push pipe originating terminal, and in shield duct piece egative film both sides, symmetric borehole cuts to form push pipe receiving terminal, passes through push pipe
Equipment is using the outside of Curve Pipe Jacking normal direction shield tunnel two more than 2 supporting pipelines of jacking side by side, and supporting pipeline is from shield tunnel
Top originates and in shield tunnel bottom reception, constituted along each supporting pipeline of the axially in parallel arrangement of shield tunnel outside subway station
Lateral support structure；
(3) fill concrete into each supporting pipeline, Construction Support basis and mid-board in shield tunnel, mid-board
Top is connected with shield duct piece top flat；
(4) vertical temporary support is removed, along the shield duct piece on the axially away shield tunnel top of shield tunnel, both sides are excavated
The soil body between supporting pipeline and shield tunnel, lining and vault two are served as a contrast at the beginning of construction vault；
(5) after the lining of vault two reaches design strength, the shield duct piece being located above shield duct piece egative film is removed simultaneously symmetrical
The soil body between both sides supporting pipeline and shield tunnel is excavated to metno station design absolute altitude is reached, lining and side wall at the beginning of side wall of constructing
Two linings, constructed after the lining of side wall two reaches design strength base plate and subway station internal structure, complete metro station construction.
In step (2) on supporting pipeline preset injected hole, pass through the slip casting of supporting pipeline after the completion of supporting pipeline jacking
Hole carries out grouting and reinforcing to the soil body of adjacent two supporting pipeline enclosures, forms grouting and reinforcing area.
In step (2) two interconnected freezing pipes, two freezing pipes are axially inside symmetrically installed in supporting pipeline
It is symmetrically distributed in the two ends of place supporting internal diameter of the pipeline and is fitted with the inwall of place supporting pipeline, the jacking of supporting pipeline is completed
Cryogen is injected in backward freezing pipe, cryogen is freezed to the soil body of adjacent two supporting pipeline enclosures, and formation is freezed
Stabilization zone.
The particular content served as a contrast in step (4) at the beginning of construction vault is top of being constructed on the vault of subway station outside-supporting structure
Portion's waterproof layer and vault template is anchored, the particular content that construction vault two is served as a contrast is assembling reinforcement and to be poured mixed in vault template
Solidifying soil.
The particular content served as a contrast in step (5) at the beginning of construction side wall is side of being constructed on the side wall of subway station outside-supporting structure
Wall waterproof layer and anchored side wall form, the particular content that construction side wall two is served as a contrast is the assembling reinforcement in side wall template and pours mixed
Solidifying soil.
The particular content of construction base plate is construction bottom waterproof layer in step (5) and anchors bottom template, in bottom mould
Assembling reinforcement and casting concrete on plate.
As shown from the above technical solution, the Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station that the present invention is provided
Method, using Curve Pipe Jacking technology in shield tunnel both sides construction supporting pipeline, supporting pipeline is originated simultaneously at the top of shield tunnel
In shield tunnel bottom reception, once construction can be formed directly in subway station outside-supporting structure, reduce in work progress
Soil deformation amount, compared to prior art sequential construction vault supporting construction and the method for side wall supporting structure, the present invention is simplified
Working procedure, greatly reduce the engineering time；Shield tunnel itself has some strength, can bear soil pressure in the short time
Indeformable, this method, which is once constructed, directly forms subway station outside-supporting structure, and the engineering time is short, therefore on the outside of subway station
Supporting construction is not required to construction mid-board as supporting construction before construction, and the installation for push pipe workbench and pipe jacking equipment is provided
Enough spaces, and subway station outside-supporting structure hinders in work progress without mid-board, and efficiency of construction is higher.
Compared with prior art, the construction method that the present invention is provided has the following advantages that：
(1) directly missed the stop using shield method, being not required to stop work waits station construction, improves the utilization rate of Suporting structure；
(2) enlarging inside subway station is realized by construction supporting pipeline, is not required to excavate urban road, to city
City's Coherent traffic noise is small, and process is simple, and efficiency of construction is high；
(3) supporting pipeline is originated at the top of shield tunnel and in shield tunnel bottom reception, all constructing operations are all in shield
Completed in structure tunnel, be not required to take other construction sites；
(4) vault of subway station as at the beginning of the vault of subway station outside-supporting structure (supporting pipeline group), vault lining and
The lining of vault two is constituted, and compared to sidepiece and bottom, the vault top soil body is relatively thin therefore intensity is less than station sidepiece and bottom, existing
Increase supporting pipeline group in the structure that lining and vault two at the beginning of having vault are served as a contrast, the intensity of vault, and supporting pipeline can be greatly promoted
Between grouting and reinforcing formation grouting and reinforcing area, on the one hand intensity between increase supporting pipeline pipe, while playing good waterproof effect；
(5) Curve Pipe Jacking method jacking supporting pipeline is used, therefore the subway station outside-supporting structure formed presents arching
Wire, curve-like adds the lifting surface area of supporting pipeline while expanding station space, and supporting pipeline stress more
Rationally；
(6) the side wall of subway station as at the beginning of the side wall of subway station outside-supporting structure (supporting pipeline group), side wall lining and
The lining of side wall two is constituted, and subway station side wall is primarily subjected to the squeezing action from the lateral soil body, is likely to result in when active force is larger
There is crackle in side wall lining cutting, and the present invention is for above-mentioned true using three layers of liner structure of side wall, lining and side wall at the beginning of existing side wall
Increase supporting pipeline group in the structure of two linings, grouting and reinforcing between the intensity of side wall, and supporting pipeline can be greatly promoted and formed
Grouting and reinforcing area, on the one hand increases intensity between supporting pipeline pipe, while playing good waterproof effect；For groundwater pressure compared with
When big or grouting consolidation effect is poor, freezing pipe can be installed in supporting pipeline, two freezing pipes are symmetrically distributed in place supporting
Two ends of internal diameter of the pipeline, and being fitted with the inwall of place supporting pipeline, inject cryogen into freezing pipe, cryogen from
Flow into and always flowed out from another freezing pipe in place supporting pipeline in wherein one freezing pipe, to adjacent two supporting pipelines
Between the soil body freezed, play the soil body between sealing, consolidation by freezing pipe, therefore this method is not required to extra for sealing enter
Capable dewatering operation；
(7) equal fill concrete in each supporting pipeline, the rigidity of structure is big, good stability, reduces follow-up station excavation and causes
Surrounding soil deformation；
(8) present invention is provided first lining, two are lined with and base plate is set up defences in water layer and template in and assembling reinforcement and poured
The structure of concrete is built, waterproof layer plays a part of secondary waterproof, and template, reinforcing bar and concrete pour into a mould the rigidity of structure to be formed
Greatly, good stability has good durability simultaneously.
Brief description of the drawings
The Construction Principle figure for the construction subway station method that Fig. 1 provides for the present invention.
Fig. 2 is the A-A profiles of subway station outside-supporting structure in embodiment 1.
Fig. 3 is the vertical temporary support of construction and the schematic diagram of push pipe workbench.
Fig. 4 is the schematic diagram of Curve Pipe Jacking method construction subway station outside-supporting structure.
Fig. 5 is the schematic diagram of fill concrete.
Fig. 6 is the schematic diagram of Construction Support basis and mid-board.
The schematic diagram that Fig. 7 lining and vault two at the beginning of construction vault are served as a contrast.
Fig. 8 is excavation soil at both sides to the schematic diagram for reaching metno station design absolute altitude.
Fig. 9 is served as a contrast at the beginning of construction side wall, side wall two is served as a contrast and the schematic diagram of base plate.
Figure 10 is the schematic diagram of construction subway station internal structure.
Figure 11 is the A-A profiles of subway station outside-supporting structure in embodiment 2.
Wherein, vertical temporary support on the left of shield duct piece in the middle part of shield duct piece on the upside of 1- top flats, 2-, 3-, 4- egative films, 5-,
Vertical temporary support on the right side of 6-, 7- supporting pipelines, 8- concrete, 9- brace foundations, 10- mid-boards, 11- vaults two are served as a contrast, 12- sides
Wall two is served as a contrast, 13- base plates, 14- platforms, 15- push pipe workbenches, 16- grouting and reinforcings area, 17- injected holes, 18- freezing pipes, 19-
Consolidation by freezing area.
Embodiment
The present invention is illustrated in detail with reference to the accompanying drawings and examples, present disclosure is not limited to following
Embodiment.
Embodiment 1：
The method for the Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station that the present invention is provided, Construction Principle such as Fig. 1
It is shown, comprise the following steps：
(1) underground space formation shield tunnel is reserved using shield construction subway station, shield tunnel is by shield duct piece
Support, shield duct piece includes top flat 1, upside shield duct piece 2, middle part shield duct piece 3 and egative film 4, symmetrically pacifies in shield tunnel
Dress left side vertical interim branch 5 and the vertical temporary support 6 in right side, install push pipe workbench 15, such as Fig. 3 institutes on shield tunnel top
Show；
(2) pipe jacking equipment is installed on push pipe workbench 15, cuts and pacify in the both sides symmetric borehole of shield duct piece top flat 1
Opening arrangement is filled as push pipe originating terminal, cuts to form push pipe receiving terminal in the both sides symmetric borehole of shield duct piece egative film 4, passes through top
Tube apparatus is using the outside of Curve Pipe Jacking normal direction shield tunnel two more than 2 supporting pipelines 7 of jacking side by side, and supporting pipeline is from shield tunnel
Originate and in shield tunnel bottom reception, referring to Fig. 4, constituted along each supporting pipeline of the axially in parallel arrangement of shield tunnel at the top of road
Subway station outside-supporting structure, before jacking on supporting pipeline preset injected hole 17, after the completion of supporting pipeline jacking pass through branch
The injected hole in pillar road carries out grouting and reinforcing to the soil body of adjacent two supporting pipeline enclosures, grouting and reinforcing area 16 is formed, such as Fig. 2 institutes
Show；
(3) fill concrete into each supporting pipeline, referring to Fig. 5, Construction Support basis 9 and mid-board in shield tunnel
10, the top of mid-board is connected with shield duct piece top flat 1, supports the supporting pipeline 7 of both sides, as shown in Figure 6；
(4) left side vertical interim branch 5 and the vertical temporary support 6 in right side are removed, along the axially away shield tunnel of shield tunnel
The shield duct piece (upside shield duct piece 2) on top, excavates the soil body between both sides supporting pipeline and shield tunnel, in subway station
Construction top waterproof layer and anchor vault template on the vault of outside-supporting structure and served as a contrast as at the beginning of vault, tied up in vault template
Wire-tie and casting concrete formation vault two lining 11, as shown in Figure 7；
(5) after the lining of vault two reaches design strength, shield duct piece (the middle part shield being located above shield duct piece egative film is removed
Structure section of jurisdiction 3) and the soil body between both sides supporting pipeline and shield tunnel is symmetrically excavated to reaching metno station design absolute altitude, referring to
Fig. 8, constructed on the side wall of subway station outside-supporting structure side wall waterproof layer and anchored side wall form are served as a contrast as at the beginning of side wall,
Assembling reinforcement and casting concrete formation side wall two lining 12 in side wall template, referring to Fig. 9；
(6) constructed after the lining of side wall two reaches design strength and bottom waterproof layer and anchor bottom template, in bottom template
Upper assembling reinforcement and casting concrete formation base plate, subway station internal structure of finally constructing, complete metro station construction, such as scheme
Shown in 10.
Embodiment 2：
The method for the Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station that the present invention is provided, Construction Principle such as Fig. 1
It is shown, comprise the following steps：
(1) underground space formation shield tunnel is reserved using shield construction subway station, shield tunnel is by shield duct piece
Support, shield duct piece includes top flat 1, upside shield duct piece 2, middle part shield duct piece 3 and egative film 4, symmetrically pacifies in shield tunnel
Dress left side vertical interim branch 5 and the vertical temporary support 6 in right side, install push pipe workbench 15, such as Fig. 3 institutes on shield tunnel top
Show；
(2) pipe jacking equipment is installed on push pipe workbench 15, cuts and pacify in the both sides symmetric borehole of shield duct piece top flat 1
Opening arrangement is filled as push pipe originating terminal, cuts to form push pipe receiving terminal in the both sides symmetric borehole of shield duct piece egative film 4, passes through top
Tube apparatus is using the outside of Curve Pipe Jacking normal direction shield tunnel two more than 2 supporting pipelines 7 of jacking side by side, and supporting pipeline is from shield tunnel
Originate and in shield tunnel bottom reception, referring to Fig. 4, constituted along each supporting pipeline of the axially in parallel arrangement of shield tunnel at the top of road
Subway station outside-supporting structure, freezing pipe 18, two freezing pipes pair are axially inside symmetrically installed before jacking in supporting pipeline 7
Claim the two ends of supporting internal diameter of the pipeline where being distributed in, and fitted with the inwall of place supporting pipeline, the jacking of supporting pipeline is completed
Inject cryogen in backward freezing pipe, cryogen is flowed into and from another in place supporting pipeline in a freezing pipe therefrom
A piece freezing pipe is always flowed out, and the soil body of adjacent two supporting pipeline enclosures is freezed, and consolidation by freezing area 19 is formed, such as Figure 11 institutes
Show；
(3) fill concrete into each supporting pipeline, referring to Fig. 5, Construction Support basis 9 and mid-board in shield tunnel
10, the top of mid-board is connected with shield duct piece top flat 1, supports the supporting pipeline 7 of both sides, as shown in Figure 6；
(4) left side vertical interim branch 5 and the vertical temporary support 6 in right side are removed, along the axially away shield tunnel of shield tunnel
The shield duct piece (upside shield duct piece 2) on top, excavates the soil body between both sides supporting pipeline and shield tunnel, in subway station
Construction top waterproof layer and anchor vault template on the vault of outside-supporting structure and served as a contrast as at the beginning of vault, tied up in vault template
Wire-tie and casting concrete formation vault two lining 11, as shown in Figure 7；
(5) after the lining of vault two reaches design strength, shield duct piece (the middle part shield being located above shield duct piece egative film is removed
Structure section of jurisdiction 3) and the soil body between both sides supporting pipeline and shield tunnel is symmetrically excavated to reaching metno station design absolute altitude, referring to
Fig. 8, constructed on the side wall of subway station outside-supporting structure side wall waterproof layer and anchored side wall form are served as a contrast as at the beginning of side wall,
Assembling reinforcement and casting concrete formation side wall two lining 12 in side wall template, referring to Fig. 9；
(6) constructed after the lining of side wall two reaches design strength and bottom waterproof layer and anchor bottom template, in bottom template
Upper assembling reinforcement and casting concrete formation base plate, subway station internal structure of finally constructing, complete metro station construction, such as scheme
Shown in 10.
Claims (6)
1. a kind of method of Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station, it is characterised in that comprise the following steps：
(1) underground space formation shield tunnel is reserved using shield construction subway station, shield tunnel is supported by shield duct piece,
Vertical temporary support is installed in shield tunnel, push pipe workbench is installed on shield tunnel top；
(2) pipe jacking equipment is installed on push pipe workbench, symmetric borehole cutting and mounting hole in shield duct piece top flat both sides
Device is as push pipe originating terminal, and in shield duct piece egative film both sides, symmetric borehole cuts to form push pipe receiving terminal, passes through pipe jacking equipment
Using the outside of Curve Pipe Jacking normal direction shield tunnel two more than 2 supporting pipelines of jacking side by side, supporting pipeline is at the top of shield tunnel
Originate and in shield tunnel bottom reception, subway station lateral branch is constituted along each supporting pipeline of the axially in parallel arrangement of shield tunnel
Support structure；
(3) fill concrete into each supporting pipeline, Construction Support basis and mid-board, the top of mid-board in shield tunnel
It is connected with shield duct piece top flat；
(4) vertical temporary support is removed, along the shield duct piece on the axially away shield tunnel top of shield tunnel, both sides supporting is excavated
The soil body between pipeline and shield tunnel, lining and vault two are served as a contrast at the beginning of construction vault；
(5) after the lining of vault two reaches design strength, remove the shield duct piece being located above shield duct piece egative film and symmetrically excavate
The soil body between both sides supporting pipeline and shield tunnel is to metno station design absolute altitude is reached, lining and side wall two at the beginning of side wall of constructing
Lining, constructed after the lining of side wall two reaches design strength base plate and subway station internal structure, completes metro station construction.
2. the method for Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station according to claim 1, its feature exists
In：In step (2) on supporting pipeline preset injected hole, by the injected hole of supporting pipeline to phase after the completion of supporting pipeline jacking
The soil body of adjacent two supporting pipeline enclosures carries out grouting and reinforcing, forms grouting and reinforcing area.
3. the method for Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station according to claim 1, its feature exists
In：Two interconnected freezing pipes are axially inside symmetrically installed in supporting pipeline in step (2), two freezing pipes symmetrically divide
It is distributed in the two ends of place supporting internal diameter of the pipeline and is fitted with the inwall of place supporting pipeline, the jacking of supporting pipeline completes backward freeze
Cryogen is injected in knot pipe, cryogen is freezed to the soil body of adjacent two supporting pipeline enclosures, form consolidation by freezing area.
4. the method for Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station according to claim 1, its feature exists
In：The particular content served as a contrast in step (4) at the beginning of construction vault is to prevent on the vault of subway station outside-supporting structure at the top of construction
Water layer and vault template is anchored, the particular content that construction vault two is served as a contrast is assembling reinforcement and to pour coagulation in vault template
Soil.
5. the method for Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station according to claim 1, its feature exists
In：The particular content served as a contrast in step (5) at the beginning of construction side wall is that construction side wall is prevented on the side wall of subway station outside-supporting structure
Water layer and anchored side wall form, the particular content that construction side wall two is served as a contrast is the assembling reinforcement in side wall template and pours coagulation
Soil.
6. the method for Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station according to claim 1, its feature exists
In：The particular content of construction base plate is construction bottom waterproof layer in step (5) and anchors bottom template, is tied up in the template of bottom
Wire-tie and casting concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510614040.XA CN105240023B (en) | 2015-09-23 | 2015-09-23 | A kind of method of Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510614040.XA CN105240023B (en) | 2015-09-23 | 2015-09-23 | A kind of method of Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station |
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| Publication Number | Publication Date |
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| CN105240023A CN105240023A (en) | 2016-01-13 |
| CN105240023B true CN105240023B (en) | 2017-07-14 |
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| CN201510614040.XA Expired - Fee Related CN105240023B (en) | 2015-09-23 | 2015-09-23 | A kind of method of Curve Pipe Jacking supporting construction enlarging shield-tunneling construction subway station |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837357B (en) * | 2017-03-24 | 2019-07-12 | 山东大学 | A kind of no-dig technique pipe-roof method using curve pipe canopy |
| CN107559026A (en) * | 2017-08-18 | 2018-01-09 | 中铁隧道勘测设计院有限公司 | A kind of subway station of double hole bilayer push pipe Spatial Couplings |
| CN110670578A (en) * | 2019-10-23 | 2020-01-10 | 中铁西南科学研究院有限公司 | Permanent-temporary integrated enclosure structure for subway station and construction method |
| CN111305851B (en) * | 2020-04-15 | 2021-10-19 | 石家庄铁道大学 | Soft soil layer subway station extension method and structure based on inserted beam freezing method |
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| DE3725963A1 (en) * | 1987-08-05 | 1989-02-16 | Gewerk Eisenhuette Westfalia | Method and apparatus for constructing a concrete foundation in the earth, in particular in a built-up area |
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| CN105240023A (en) | 2016-01-13 |
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