CN102966016A - Internal double-layer prefabricated traffic lane structure of shield tunnel - Google Patents
Internal double-layer prefabricated traffic lane structure of shield tunnel Download PDFInfo
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- CN102966016A CN102966016A CN2012105528518A CN201210552851A CN102966016A CN 102966016 A CN102966016 A CN 102966016A CN 2012105528518 A CN2012105528518 A CN 2012105528518A CN 201210552851 A CN201210552851 A CN 201210552851A CN 102966016 A CN102966016 A CN 102966016A
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Abstract
The invention provides an internal double-layer prefabricated traffic lane structure of a shield tunnel. The internal double-layer prefabricated traffic lane structure mainly comprises a square fabricated component of a lower lane, a lane foundation, a vertical column of an upper lane, a lane column contact beam, a vertical beam of the upper lane and an upper fabricated lane board, wherein concrete foundations are cast at the both sides of the square fabricated component of the lower lane, so as to form a lower lane road surface structure and a lane foundation structure; the vertical column of the upper lane, the lane column contact beam and the upper fabricated lane board form a cast-in-place reinforced concrete structure; brackets are arranged at the inner side of the vertical beam of the upper lane; and the upper lane column contact beam is erected across the brackets at the inner side of the vertical beam of the upper lane, so as to form an entire structure by casting concrete. According to the internal double-layer prefabricated traffic lane structure provided by the invention, the standardization, the module production and the rapid construction speed can be realized, so that the large amount of labor and materials in field construction can be saved, and the better social benefits can be obtained.
Description
Technical field
The present invention relates to tunnel and bridge technology field, relate to particularly a kind of structure of the prefabricated units that in the inner double-deck runway of shield tunnel, adopt.
Background technology
Along with the exploitation of urban underground space, major diameter, long-distance shield structure method tunnel have obtained a large amount of application in the construction of city expressway.The tunnel railway network planning constantly increases, and the tunnel channel condition is more complicated, and present river, the tunnel over strait crossed be all toward the future development such as dark, large, long, difficult, constructing tunnel has occurred that difficulty is large, complex process, long in time limit, a series of difficult points such as have a big risk.
The inner double decked lanes structure of shield structure is generally cast-in-place concrete structure.Many modes that chassis is constructed simultaneously of the general employing of concrete cast-in-situ construction, every section construction all need be carried out the work such as chassis location, assembling reinforcement, concreting, curing concrete, form removal, and the constructor who needs is numerous.The shield tunnel inner space is narrow and small, and personnel are intensive, and equipment is numerous, and when the inner lane structure of shield structure and shield structure synchronous construction, the construction organization difficulty is large, and potential safety hazard is many.
The concrete cast-in-situ working procedure is many, long construction period, and speed of application is slower.For solving the speed of application problem, must address this problem from method for designing." prefabricated, modularization " is frontline technology and the developing direction of at present design and construction, be prefabricated units with the primary structure member designs, adopt mechanized construction, pipelining, saving manpower, reducing in the tunnel aspect such as cast-in-place construction amount larger advantage is arranged, it is the important channel of accelerating speed of application.
Summary of the invention
The object of the present invention is to provide the inner double-deck prefabricated runway structure of a kind of shield tunnel, to adapt to the requirement of present rapid construction.
For achieving the above object, the inner double-deck prefabricated runway structure of shield tunnel provided by the invention, it mainly comprises:
The square shape prefabricated units of flyunder, basis, track, track, upper strata column, track post contact beam, the prefabricated lane plate of track, upper strata longeron and upper strata; Wherein:
The concreting basis, square shape prefabricated units both sides of flyunder forms flyunder road structure and track foundation structure;
Track, upper strata column, track post contact beam and track, upper strata longeron are monolithic reinforced concrete structure, and longeron inboard, track, upper strata is provided with bracket;
Track, upper strata precast plate crossbearer forms overall structure by rear pouring concrete on the bracket of longeron inboard, track, upper strata.
The inner double-deck prefabricated runway structure of described shield tunnel, wherein, track, upper strata precast plate is hollowcore slab.
The inner double-deck prefabricated runway structure of described shield tunnel, wherein, the two ends of track, upper strata precast plate and longeron top, track, upper strata are reserved with reinforcing bar, and track, upper strata precast plate crossbearer forms overall structure by reserved steel bar and rear pouring concrete on the bracket of longeron inboard, track, upper strata the time.
The inner double-deck prefabricated runway structure of described shield tunnel, wherein, track, upper strata precast plate crossbearer is on the bracket of longeron inboard, track, upper strata the time, leave hinge seam between the side of track, per two upper stratas precast plate, make between the precast plate of track, upper strata by rear pouring concrete during installation to form overall structure.
The present invention has realized the form of construction work of assembly unit in outer prefabricated, the tunnel of shield tunnel inside lane structure tunnel, has reduced the tunnel internal constructor, has accelerated the lane structure speed of application, has realized that tunnel piercing and internal construction are synchronous, the breakthrough of rapid construction.
Description of drawings
Fig. 1 is flyunder layout plan of the present invention;
Fig. 2 is track of the present invention sectional drawing;
Fig. 3 is track, upper strata of the present invention layout plan;
Fig. 4 is track, upper strata of the present invention precast plate cross-sectional view (middle span precast plate);
Fig. 5 is track, upper strata of the present invention precast plate cross-sectional view (end bay precast plate).
Sign flag explanation in the accompanying drawing:
1 square shape prefabricated units, basis, 2 tracks, track, 3 upper strata column, track, 4 upper strata precast plate, 5 hinge seams, 6 deformation joints, track, 7 upper strata longeron, longeron delay-pour joint district, 8 track, 9 reserve connecting reinforcement, 10 track longeron brackets, 11 track post contact beams.
The specific embodiment
Provided by the invention for the prefabricated structure of the double-deck runway in shield tunnel inside, in this structure, the method for track, prefabricated upper strata precast plate outside the tunnel has been adopted in the track, upper strata; Track, upper strata column, track post contact beam, track, upper strata longeron are cast-in-place structural; Track, upper strata precast plate is connected by reserved steel bar with track, upper strata longeron, track, upper strata column, and is connected to form structural entity by rear pouring concrete.Be connected to form integral body by the hinge seam between the precast plate of track, upper strata.
Specifically, technical solution of the present invention is:
The structure design that flyunder adopts the square shape prefabricated units to combine with basis, cast-in-place track; Track, upper strata column and track, upper strata longeron adopt monolithic reinforced concrete structure; The structure design of watering behind prefabricated lane plate+beam slab node is adopted in the track, upper strata, and track, upper strata precast plate and track, upper strata longeron form overall structure by reserved steel bar and rear pouring concrete.Adopt the hinge seam to connect between the precast plate of track, upper strata.
Flyunder structure of the present invention comprises square shape prefabricated units and basis, track two parts, flyunder is hoisting port font prefabricated units at first, then implant the track reinforcement foundation at square shape prefabricated units both sides shield duct piece, concreting forms complete flyunder and track basis.The square shape prefabricated units are precast reinforced concrete structure.
Track, upper strata of the present invention precast plate is pre-fabricated reinforced concrete hollow plate, and two ends are reserved with reinforcing bar, and reinforcing bar and track, the upper strata longeron reserved by two ends are connected to become integral body by rear pouring concrete.Adopt the hinge seam to be connected to become integral body between the precast plate of track, upper strata.
Track, upper strata of the present invention longeron is built at twice, and track, upper strata longeron is reserved the link position of track, upper strata precast plate in advance when building for the first time, and longeron inboard, track, upper strata arranges bracket, is used for lifting track, upper strata precast plate; Building for the second time is that track, upper strata longeron and track, upper strata precast plate are connected to become integral body.
The present invention is specially adapted to the rapid construction of the inner double decked lanes structure of shield tunnel.
Embodiment:
1) referring to Fig. 1, at the flyunder square shape prefabricated units 1 of mating formation;
2) referring to Fig. 2, build in the square shape prefabricated units both sides that flyunder has been mated formation basis, track 2, track, upper strata column 3, track post contact beam 11, with track, upper strata longeron 7, longeron 7 inboards, track, upper strata arrange track longeron bracket 10 (as shown in Figure 4);
3) referring to Fig. 2 and Fig. 3, hang oneself on basis, track, upper strata 2 and to load onto a layer track precast plate 4.When lifting track, upper strata precast plate 4, leave working hinge seam 5 between track, the per two upper stratas precast plate 4, wait lift finish after hinge between track, upper strata precast plate 4 stitch 5 place's concretings, and at track, upper strata precast plate 4 and track, upper strata longeron 7 delay-pour joint districts 8 place's concretings, make between track, the upper strata precast plate 4, and form overall structure between track, upper strata precast plate 4 and track, the upper strata longeron 7.
4) repeat above-mentioned steps 1-3, can realize the rapid construction of double-deck runway structure.
Claims (4)
1. the inner double-deck prefabricated runway structure of a shield tunnel, it mainly comprises:
The square shape prefabricated units of flyunder, basis, track, track, upper strata column, track post contact beam, the prefabricated lane plate of track, upper strata longeron and upper strata; Wherein:
The concreting basis, square shape prefabricated units both sides of flyunder forms flyunder road structure and track foundation structure;
Track, upper strata column, track post contact beam and track, upper strata longeron are monolithic reinforced concrete structure, and longeron inboard, track, upper strata is provided with bracket;
Track, upper strata precast plate crossbearer forms overall structure by rear pouring concrete on the bracket of the inboard of track, upper strata longeron.
2. the inner double-deck prefabricated runway structure of shield tunnel according to claim 1, wherein, track, upper strata precast plate is hollowcore slab.
3. the inner double-deck prefabricated runway structure of shield tunnel according to claim 1 and 2, wherein, the two ends of track, upper strata precast plate and longeron top, track, upper strata are reserved with reinforcing bar, track, upper strata precast plate crossbearer forms overall structure by reserved steel bar and rear pouring concrete on the bracket of longeron inboard, track, upper strata the time.
4. the inner double-deck prefabricated runway structure of shield tunnel according to claim 1, wherein, track, upper strata precast plate crossbearer is on the bracket of longeron inboard, track, upper strata the time, leave hinge seam between the side of track, per two upper stratas precast plate, make between the precast plate of track, upper strata by rear pouring concrete during installation to form overall structure.
Priority Applications (1)
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CN201210552851.8A CN102966016B (en) | 2012-12-18 | 2012-12-18 | The prefabricated runway structure of a kind of shield tunnel internal double layers |
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CN201210552851.8A CN102966016B (en) | 2012-12-18 | 2012-12-18 | The prefabricated runway structure of a kind of shield tunnel internal double layers |
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CN102966016A true CN102966016A (en) | 2013-03-13 |
CN102966016B CN102966016B (en) | 2016-01-13 |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104564101A (en) * | 2015-01-14 | 2015-04-29 | 中交第二航务工程局有限公司 | Single-tube double-layer tunnel simultaneous construction method |
CN106400629A (en) * | 2016-10-17 | 2017-02-15 | 上海市政工程设计研究总院(集团)有限公司 | Round-tunnel double-layer lane frame structure system and full-prefabricated construction method thereof |
CN106436513A (en) * | 2016-10-17 | 2017-02-22 | 上海市政工程设计研究总院(集团)有限公司 | Round tunnel double-decked lane frame structured system and fully-prefabricated construction method thereof |
CN108194095A (en) * | 2018-03-20 | 2018-06-22 | 上海市城市建设设计研究总院(集团)有限公司 | The prefabricated superposed type vehicle driving passage structure of subterranean tunnel or gallery |
CN108756933A (en) * | 2018-04-27 | 2018-11-06 | 同济大学 | A kind of bellows-type quick connecting method of double layer tunnel inside prefabricated components |
CN109751061A (en) * | 2019-03-26 | 2019-05-14 | 西南交通大学 | A kind of combined highway and metro single-tube double-layer shield tunnel |
CN110374623A (en) * | 2019-08-07 | 2019-10-25 | 上海市机械施工集团有限公司 | Prefabricated platform and its installation method |
CN113417671A (en) * | 2021-08-06 | 2021-09-21 | 中交(广州)建设有限公司 | Construction method for quickly assembling prefabricated parts in shield tunnel |
CN113503176A (en) * | 2021-08-06 | 2021-10-15 | 中交(广州)建设有限公司 | Integrated intelligent assembling trolley for prefabricated parts in tunnel |
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EP0097113A2 (en) * | 1982-06-16 | 1983-12-28 | Wayss & Freytag Aktiengesellschaft | Method of driving a tunnel in stressed rock |
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CN203021884U (en) * | 2012-12-18 | 2013-06-26 | 中交公路规划设计院有限公司 | Internal double-layer prefabricated carriageway structure of shield tunnel |
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2012
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JP2003064994A (en) * | 2001-08-27 | 2003-03-05 | Nippon Koatsu Concrete Kk | Invert |
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CN101294495A (en) * | 2008-06-25 | 2008-10-29 | 上海隧道工程股份有限公司 | Tunnel shield propulsion and inside double-layer road synchronous construction method |
KR100980798B1 (en) * | 2010-03-11 | 2010-09-10 | 이형훈 | Precast slab construction method for large section ground tunnel |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104564101A (en) * | 2015-01-14 | 2015-04-29 | 中交第二航务工程局有限公司 | Single-tube double-layer tunnel simultaneous construction method |
CN106400629A (en) * | 2016-10-17 | 2017-02-15 | 上海市政工程设计研究总院(集团)有限公司 | Round-tunnel double-layer lane frame structure system and full-prefabricated construction method thereof |
CN106436513A (en) * | 2016-10-17 | 2017-02-22 | 上海市政工程设计研究总院(集团)有限公司 | Round tunnel double-decked lane frame structured system and fully-prefabricated construction method thereof |
CN108194095A (en) * | 2018-03-20 | 2018-06-22 | 上海市城市建设设计研究总院(集团)有限公司 | The prefabricated superposed type vehicle driving passage structure of subterranean tunnel or gallery |
CN108756933A (en) * | 2018-04-27 | 2018-11-06 | 同济大学 | A kind of bellows-type quick connecting method of double layer tunnel inside prefabricated components |
CN109751061A (en) * | 2019-03-26 | 2019-05-14 | 西南交通大学 | A kind of combined highway and metro single-tube double-layer shield tunnel |
CN109751061B (en) * | 2019-03-26 | 2023-10-17 | 西南交通大学 | Single-pipe double-layer shield tunnel built by common rail and common rail |
CN110374623A (en) * | 2019-08-07 | 2019-10-25 | 上海市机械施工集团有限公司 | Prefabricated platform and its installation method |
CN110374623B (en) * | 2019-08-07 | 2021-10-15 | 上海市机械施工集团有限公司 | Prefabricated platform and installation method thereof |
CN113417671A (en) * | 2021-08-06 | 2021-09-21 | 中交(广州)建设有限公司 | Construction method for quickly assembling prefabricated parts in shield tunnel |
CN113503176A (en) * | 2021-08-06 | 2021-10-15 | 中交(广州)建设有限公司 | Integrated intelligent assembling trolley for prefabricated parts in tunnel |
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