CN208605191U - It is a kind of elder generation tunnel after stand arch-wall method step excavation buried station structure - Google Patents
It is a kind of elder generation tunnel after stand arch-wall method step excavation buried station structure Download PDFInfo
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- CN208605191U CN208605191U CN201820502683.4U CN201820502683U CN208605191U CN 208605191 U CN208605191 U CN 208605191U CN 201820502683 U CN201820502683 U CN 201820502683U CN 208605191 U CN208605191 U CN 208605191U
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Abstract
The utility model relates to a kind of buried station structure for arch-wall method step excavation of standing after first tunnel, the lid of lid arch superstructure and its two sides including top encircles big arch springing, the left side wall top song wall construction in left side and left side wall lower walls heel structure, the right-side wall top song wall construction on right side and right-side wall lower walls heel structure and the inverted arch structure of bottom；Inverted arch superstructure is provided with vertical station center pillar, is provided with horizontal station platform plate above the center pillar of station.The utility model ensure that in tunneling engineering method work progress that TBM continues tunneling construction forward, ensure that the construction period in section, guarantees structure safety, saves project cost.
Description
Technical field
The utility model relates to Construction Technique of Underground Works fields, and in particular to it is a kind of elder generation tunnel after station arch-wall method substep open
The buried station structure dug.
Background technique
The construction of TBM Mechanical Method has many advantages, such as that environmental pollution is small, driving speed is fast, tunnel shape is regular, and TBM can generally connect
Shorten the section construction period in the continuous multiple Interval Maximum degree of driving, the construction period of Station is longer, how to guarantee tunneling
Station construction do not influence TBM continue to tunnel and charging of slagging tap, be Station innovation engineering method primarily solve the problems, such as.
Station as using conventional two side-wall pilot tunnel construction, station main body earthwork evacuation region will quickly with station model
The overlapping of the cavern Wei Nei TBM influences to slag tap charging after TBM misses the stop using cavern within the scope of station.
Summary of the invention
The purpose of the utility model is to provide a kind of buried station structures for arch-wall method step excavation of standing after first tunnel, avoid
Influence of the Station construction period to the TBM driving duration, solves TBM and misses the stop and slag tap and station main body earthwork evacuation phase
Problem is mutually influenced, structure safety is ensure that, has saved project cost.
The technology employed by the present utility model is
It is a kind of elder generation tunnel after stand arch-wall method step excavation buried station structure, it is characterised in that:
The lid of lid arch superstructure and its two sides including top encircle big arch springing, left side left side wall top song wall construction and
Left side wall lower walls heel structure, the right-side wall top song wall construction on right side and right-side wall lower walls heel structure and bottom are faced upward
Arch structure；
Inverted arch superstructure is provided with vertical station center pillar, is provided with horizontal station platform plate above the center pillar of station.
The lid arch structure of lid arch superstructure and the big arch springing composition of lid arch is the up-narrow and down-wide structure of one-piece casting, Gai Gong great
Arch springing thickeies formation protrusion outward.
Wall and right-side wall top on the left of the station of left side wall top song wall construction and left side wall lower walls heel structure composition
The station right-side wall of bent wall construction and right-side wall lower walls heel structure composition is only outer straight introversion structure structure, left side wall lower walls
Call in person structure and right-side wall lower walls heel structure outward thicken and respectively with left side wall top song wall construction and right-side wall top
It is concordant on the outside of bent wall construction.
The utility model has the advantage that
(1) it is constructed using station engineering method after first tunnel, largely solves Station construction and miss the stop to TBM driving
Influence, shorten TBM driving and Station construction period.
(2) it is constructed using the engineering method of arch-wall method step excavation, solves TBM driving and miss the stop and slagged tap using cavern
During charging, station can not carry out earthwork evacuation and the problem of two lining structures perform.
(3) using the low wide and up narrow lid arch structure for having big arch springing, the ground of arch springing two sides rocky soil layer is taken full advantage of
Base bearing capacity, reasonable distribution lid arch structure stress.It ensure that the safety of lid arch bearing structure, while large span lid arch structure mentions
Sufficient construction space is supplied.
(4) using the sidewall structure of the outer straight introversion wall with wall heel, the bearing capacity of side wall bottom, reasonable distribution are improved
The stress of sidewall structure avoids stress concentration.
Detailed description of the invention
Fig. 1 is a full set of working procedure flow chart of the utility model；
Fig. 2 is the station structure 3D schematic diagram of the utility model
Fig. 3 is the lid arch structure 3D schematic diagram of the utility model；
Fig. 4 is the sidewall structure 3D schematic diagram of the utility model；
In figure,Station main body side pilot tunnel top excavation and just branch,- TBM driving miss the stop,It opens side pilot tunnel lower part
Dig and just prop up,Core Soil top excavation and just branch,Excavate in the middle part of Core Soil and just prop up,Temporary support is removed, is applied
Lid arch and support are done,Station lower left side excavate, and perform just branch and left side wall two lining,It is excavated on the right side of the lower part of station,
And prop up at the beginning of performing and served as a contrast with right-side wall two,Station lower core cubsoil excavate, and perform just branch and inverted arch two lining, 10.-perform inverted arch
Backfill ,-temporary support is abolished, perform platform slab and center pillar；
Branch, the support of the side 102- pilot tunnel top vertical supporting, the side 103- pilot tunnel upper level, 104- at the beginning of the pilot tunnel top of the side 101-
Side pilot tunnel top lock foot anchoring stock, branch, the side 302- pilot tunnel lower part vertical supporting, the side 303- pilot tunnel level branch at the beginning of the pilot tunnel lower part of the side 301-
Support, the side 304- pilot tunnel lower part lock foot anchoring stock；The top 401- Core Soil just props up, the top 402- Core Soil is horizontally-supported, the top 403-
Core Soil lock foot anchoring stock；501- central core soil is horizontally-supported, 601- lid arch superstructure, 602- lid encircles big arch springing, 603- is covered
Encircle vertical supporting；Branch, the station 702- lower left side wall lock foot anchoring stock, the station 703- left side wall top at the beginning of the lower left side of the station 701-
Wall lower walls heel structure on the left of bent wall construction, the station 704-；Just branch, the station 802- lower part right-side wall are locked on the right side of the lower part of the station 801-
Foot anchor pole, the station 803- right-side wall top song wall construction, the station 804- right-side wall lower walls heel structure；At the beginning of the inverted arch of the station 901-
Branch, two lining structure of the station 902- inverted arch；1001- inverted arch backfills structure；1101- station platform plate, the station 1102- center pillar.
Specific embodiment
The utility model is described in detail With reference to embodiment.
The utility model relates to first tunnel after stand arch-wall method step excavation buried station structure, tunneled using TBM
It stands and carries out " engineering method of standing after first tunnel " of station boring construction again, ensure that in tunneling engineering method work progress, TBM continuation is tunneled forward
Construction, ensure that the construction period in section.For the construction speed in reasonable distribution station and section, avoid the mutual shadow of the two construction
It rings, using " arch-wall method step excavation method ", station top is subjected to double -side approach construction, and carry out lid arch structure in time
It performs, guarantees structure safety, saves project cost.
Engineering method specifically uses the step of arch-wall method step excavation, first to the progress bilateral pilot tunnel construction of station top, and and
Shi Jinhang lid arch structure performs, and then carries out performing for sidewall structure and inverted arch structure.
Excavation in zones includes left side pilot tunnel top, left side pilot tunnel lower part, right side pilot tunnel top, right side pilot tunnel lower part, core
Native top, Core Soil middle part, lower left side, lower part right side and Core Soil lower part；
The following steps are included:
(1) station main body side pilot tunnel top is excavated, just branch performs and temporary support constructs；
(2) TBM driving misses the stop；
(3) pilot tunnel lower part in side is excavated, just branch performs and temporary support constructs；
(4) Core Soil top is excavated, just branch performs and temporary support constructs；
(5) it is excavated in the middle part of Core Soil, just branch performs and temporary support constructs；
(6) part temporary support is removed, the horizontally-supported of step (3) and step (5) is retained, lid arch is performed and constructs it and face
When support；
(7) station lower left side is excavated, and performs just branch and the lining of left side wall two；
(8) it is excavated on the right side of the lower part of station, and performs just branch and right-side wall two and serve as a contrast；
(9) lower core cubsoil in station excavates, and performs just branch and the lining of inverted arch two；
(10) inverted arch backfill is performed；
(11) all temporary supports are abolished, platform slab and center pillar are performed.
Side pilot tunnel top lock foot anchoring stock 104 is performed to side in step (1)；Step performs top Core Soil in (4) upwards
Lock foot anchoring stock 403.
Lid arch encircles big arch springing structure 602 including the lid of lid arch superstructure 601 and its two sides.Step is applied in (3) to side
Side pilot tunnel lower part lock foot anchoring stock 304 is done, encircles in lid and is performed two layers up and down at big arch springing structure 602.
Left side wall includes wall top song wall construction 703 and station left side wall lower walls heel structure 704 on the left of station；Right-side wall
Including station right-side wall top song wall construction 803 and station right-side wall lower walls heel structure 804.Step performs in (7) to side
Station lower left side wall lock foot anchoring stock 702, wall lower walls heel 704 side of structure performs on the left of station；To side in step (8)
Station lower part right-side wall lock foot anchoring stock 802 is performed, is performed in station right-side wall lower walls heel 804 side of structure.
The buried station structure for arch-wall method step excavation of standing after the first tunnel of above-mentioned engineering method building, on the lid arch including top
The lid of portion's structure 601 and its two sides encircles big arch springing 602, the left side wall top song wall construction 703 in left side and the heel of left side wall lower walls
The inverted arch knot of structure 704, the right-side wall top song wall construction 803 on right side and right-side wall lower walls heel structure 804 and bottom
Structure；Inverted arch superstructure is provided with vertical station center pillar 1102, is provided with horizontal station platform above station center pillar 1102
Plate 1101.
Lid arch superstructure 601 and lid encircle the up-narrow and down-wide structure that the lid arch structure that big arch springing 602 forms is one-piece casting,
Lid encircles big arch springing 602 and thickeies formation protrusion outward.
Wall and right side on the left of the station that left side wall top song wall construction 703 and left side wall lower walls heel structure 704 form
The station right-side wall that wall top song wall construction 803 and right-side wall lower walls heel structure 804 form is only outer straight introversion structure structure,
Left side wall lower walls heel structure 704 and the thickening outward of right-side wall lower walls heel structure 804 are simultaneously bent with left side wall top respectively
Wall construction 703 is concordant with 803 outside of right-side wall top song wall construction.
Specific construction process are as follows:
Embodiment:
After the completion of construction shaft construction, as shown in Figure 1, the face that gets to the station, excavates side pilot tunnel top, performs side pilot tunnel
Top steel arch-shelf and gunite concrete, carry out that pilot tunnel top in side is vertical and Horizontal steelwork bracing, set side pilot tunnel top lock foot anchoring stock；
Side pilot tunnel lower part is excavated, side pilot tunnel lower part steel arch-shelf and gunite concrete are performed, performs side pilot tunnel lower part vertically and horizontal steel branch
It supports, set side pilot tunnel lower part lock foot anchoring stock；Core Soil top is excavated, Core Soil top steel arch-shelf and gunite concrete is performed, applies
Top Core Soil Horizontal steelwork bracing is done, top Core Soil lock foot anchoring stock is set；It excavates in the middle part of Core Soil, performs central core Tu Shui
Flat bracing members；Remove vertical pilot tunnel top in side and Horizontal steelwork bracing, the vertical bracing members in side pilot tunnel lower part and top Core Soil level
Bracing members carry out lid arch superstructure and cover the reinforcing bar binding for encircleing big arch springing structure and formwork and pour lid arch structure, perform lid
Encircle vertical bracing members；Station lower left side is excavated, station lower left side steel arch-shelf and gunite concrete is performed, sets station lower part
Left side wall lock foot anchoring stock carries out the reinforcing bar binding of wall top song wall construction and lower walls heel structure and formwork on the left of station and pours
Wall on the left of station；It excavates on the right side of the lower part of station, performs on the right side of the lower part of station steel arch-shelf and gunite concrete, sets station lower right
Side wall lock foot anchoring stock, the reinforcing bar binding for carrying out station right-side wall top song wall construction and lower walls heel structure and formwork simultaneously pour vehicle
It stands right-side wall；Station lower core cubsoil is excavated, station inverted arch steel arch-shelf is carried out and lays simultaneously gunite concrete, carry out station inverted arch steel
The binding of muscle and formwork simultaneously pour two lining structure of station inverted arch；Carry out pouring for inverted arch backfill structure；Abolish side pilot tunnel level and
Vertical supporting, central core soil are horizontally-supported, lid encircles vertical supporting, pour station platform plate and station center pillar.
The content of the utility model is not limited to cited by embodiment, and those of ordinary skill in the art are practical new by reading this
Type specification and to any equivalent transformation that technical solutions of the utility model are taken, be the claim institute of the utility model
Cover.
Claims (3)
1. a kind of buried station structure for arch-wall method step excavation of standing after elder generation's tunnel, it is characterised in that:
The lid of lid arch superstructure (601) and its two sides including top encircles the left side wall top Qu Qiang of big arch springing (602), left side
Structure (703) and left side wall lower walls heel structure (704), the right-side wall top song wall construction (803) on right side and right-side wall lower part
Wall is called in person structure (804) and the inverted arch structure of bottom；
Inverted arch superstructure is provided with vertical station center pillar (1102), is provided with horizontal station above station center pillar (1102)
Platform slab (1101).
2. the buried station structure for arch-wall method step excavation of standing after a kind of first tunnel according to claim 1, feature exist
In:
Lid arch superstructure (601) and lid encircle the up-narrow and down-wide structure that the lid arch structure that big arch springing (602) forms is one-piece casting,
Lid encircles big arch springing (602) and thickeies formation protrusion outward.
3. the buried station structure for arch-wall method step excavation of standing after a kind of first tunnel according to claim 1, feature exist
In:
Wall and right side on the left of the station of left side wall top song wall construction (703) and left side wall lower walls heel structure (704) composition
The station right-side wall of wall top song wall construction (803) and right-side wall lower walls heel structure (804) composition is only outer straight introversion structure
Structure, left side wall lower walls call in person structure (704) and right-side wall lower walls heel structure (804) outward thickening and respectively with left side
Wall top song wall construction (703) is concordant on the outside of right-side wall top song wall construction (803).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820502683.4U CN208605191U (en) | 2018-04-10 | 2018-04-10 | It is a kind of elder generation tunnel after stand arch-wall method step excavation buried station structure |
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| CN201820502683.4U CN208605191U (en) | 2018-04-10 | 2018-04-10 | It is a kind of elder generation tunnel after stand arch-wall method step excavation buried station structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506014A (en) * | 2018-04-10 | 2018-09-07 | 中铁第勘察设计院集团有限公司 | The buried station structure and its tunneling engineering method for arch-wall method step excavation of standing after first tunnel |
| CN110821503A (en) * | 2019-11-27 | 2020-02-21 | 中铁九局集团第四工程有限公司 | Construction method for main body of ultra-deep shield section air shaft after tunnel advance |
-
2018
- 2018-04-10 CN CN201820502683.4U patent/CN208605191U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506014A (en) * | 2018-04-10 | 2018-09-07 | 中铁第勘察设计院集团有限公司 | The buried station structure and its tunneling engineering method for arch-wall method step excavation of standing after first tunnel |
| CN110821503A (en) * | 2019-11-27 | 2020-02-21 | 中铁九局集团第四工程有限公司 | Construction method for main body of ultra-deep shield section air shaft after tunnel advance |
| CN110821503B (en) * | 2019-11-27 | 2021-10-15 | 中铁九局集团第四工程有限公司 | Construction method for main body of ultra-deep shield section air shaft after tunnel advance |
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