CN114561975B - Integrative pouring system of multilayer subway open cut station - Google Patents
Integrative pouring system of multilayer subway open cut station Download PDFInfo
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- CN114561975B CN114561975B CN202210186259.4A CN202210186259A CN114561975B CN 114561975 B CN114561975 B CN 114561975B CN 202210186259 A CN202210186259 A CN 202210186259A CN 114561975 B CN114561975 B CN 114561975B
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- 238000009432 framing Methods 0.000 claims abstract description 75
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 63
- 239000010959 steel Substances 0.000 claims abstract description 63
- 238000010276 construction Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 239000011120 plywood Substances 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Sustainable Development (AREA)
- Lining And Supports For Tunnels (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses an integral pouring system of a multilayer subway open cut station, which comprises a full framing provided with an adjustable symmetrical supporting mechanism, wherein the full framing comprises inclined rods, horizontal rods, vertical rods and a full framing bottom die which is arranged at the top and is provided with steel beams, the adjustable symmetrical supporting mechanism comprises symmetrical supporting templates which are arranged at the left side and the right side and are provided with steel beams, and a plurality of side wall opposite supporting steel pipes which are arranged on the main body structure of the full framing, the symmetrical supporting templates are arranged at the side edges of the side wall templates of the station through the steel beams, the side wall opposite supporting steel pipes are horizontally and parallelly arranged between adjacent horizontal rods of the full framing, and when the full framing is arranged on a first layer for building, the bottom is arranged on a poured station bottom plate and a bottom plate beam; when the full framing is positioned on the second layer and above, the bottom is directly arranged on the middle plate which is poured before, and the full framing has the characteristics of safety, reliability, easiness in operation and implementation, high construction quality, fast construction progress and strong stability of the framing.
Description
Technical Field
The invention relates to the technical field of open cut tunnel station structure construction, in particular to an integrated pouring system for a multilayer subway open cut station.
Background
Constructing a traditional open cut station structure, namely firstly constructing a side wall by utilizing a combined triangular support system after the bottom plate is poured, and then constructing a middle plate; each procedure comprises bracket mounting and dismounting, template mounting and dismounting and concrete batch casting, each procedure of the structural layer is required to be completed in sequence, and in the process, the following defects exist: 1) The construction period of each structural layer is long, each construction procedure is greatly influenced by the circulation time sequence, the input resources are more, and the construction cost is high; 2) After the side wall construction is completed, the construction of the medium plate full framing system cannot be immediately carried out under the influence of conditions such as concrete strength, maintenance, dismantling of a triangular support system and the like; 3) After the middle plate is poured, 4 longitudinal construction joints are formed in each structural layer, so that the waterproof effect of the structural concrete is not facilitated.
Disclosure of Invention
The invention aims to provide an integrated pouring system for a multilayer subway open cut station, which has the advantages of short construction period and low construction cost, and solves the problems of long construction period, high construction cost and longitudinal construction joints of laminate wall columns of various structures of the traditional open cut station.
The technical scheme adopted by the invention is as follows: the utility model provides a multilayer subway open cut station integrative pouring system, including the full framing that sets up adjustable symmetry supporting mechanism, the full framing includes diagonal rod, horizontal pole, pole setting and be located the top and be equipped with the full framing die block of girder steel, full framing corresponds well slab beam and/or bottom plate roof beam department and is equipped with the setting groove, and set up two and more pole settings under well slab beam and support well slab beam bottom, adjustable symmetry supporting mechanism includes the symmetry supporting template that is located the left and right sides and be equipped with the girder steel and a plurality of arrays of side wall pair support steel pipes of arranging on full framing body structure, the symmetry supporting template is arranged at the side of station side wall template through the girder steel, the side wall pair support steel pipe is set up in parallel between the adjacent horizontal pole of full framing and is extended to the full framing outside, the body interval of side wall pair support steel pipe is equipped with the fastener of buckling pole setting, the side wall pair support steel pipe left and right ends are equipped with the horizontal movement free end, the center pillar of same layer, full framing, station side wall, station corresponding position synchronization construction and installation of station template can be put up after the station template, full framing support template can be supported, when the side wall pair support steel pipe is supported to the free layer and bottom plate template is adjusted to the bottom plate template is located in full framing, when the full framing template is supported in place, the bottom is adjusted to the full framing template is well; when the full framing is positioned on the second layer and above for construction, the bottom is directly arranged on the middle plate which is poured before.
As the preference of above-mentioned scheme, the side wall is provided with the lead screw jacking of propping up steel pipe both ends threaded connection about the end to prop the steel pipe, through the screw rod of adjustment jacking afterbody screw in the degree of depth in the steel pipe to make lead screw jacking head horizontal migration to support tight symmetrical support template, convenient operation is swift, and the flexibility is strong.
Still preferably, the diagonal rod, the horizontal rod and the vertical rod adopt a disc buckle type steel pipe support lap joint mode to form a full framing main structure, so that the structural stability of the full framing is strong, the top end of the vertical rod is provided with a supporting jacking, the bottom end of the vertical rod is provided with a supporting jacking, a full framing bottom die is arranged on the jacking through a steel beam, the supporting jacking and the supporting jacking all adopt phi 60 multiplied by 5.0 multiplied by 600mm, materials are selected properly, the supporting performance is good, the cantilever length of the supporting jacking is not more than 600mm, and the exposed length of the supporting jacking is not more than 300mm.
More preferably, the dimensions of the vertical rods and the horizontal rods are phi 60 multiplied by 3.2mm, the distance between the vertical rods is 1500mm horizontally multiplied by 1200mm longitudinally, and the distance is moderate.
Still more preferably, the girder steel of full framing die block and symmetrical support template comprises girder and trabecula, and the girder adopts I10I steel, and the trabecula adopts 100mm x 50mm rectangle steel pipe, and full framing die block adopts 20mm thick wood plywood, and symmetrical support template adopts 20mm thick cladding wood plywood, and the material selection is reasonable, and it is suitable to use.
Further preferably, the station side wall is directly installed by adopting a whole die, so that gaps between the assembly of the templates are reduced, the concrete surface of the side wall is smoother and smoother, and the side wall can be flexibly built.
The invention has the beneficial effects that:
(1) The full framing is provided with a symmetrical supporting mechanism, and the two supporting systems are skillfully combined together, so that the time-sharing sequential construction steps of a middle plate, a side wall and a middle column (collectively referred to as a slab wall column) of each structural layer of the traditional open cut station can be changed; after the corresponding positions of the middle post, the full framing, the side wall of the station and the middle plate of the station are synchronously constructed and the corresponding templates are installed, the full framing can support the middle plate of the station, the bottom die of the middle post can be used for providing a working face for binding the middle plate reinforcing steel bars after the installation of the middle post template is completed, the next construction is convenient, the free ends of the side wall pair supporting steel pipes can be adjusted to be propped against the symmetrical supporting templates, so that the side wall templates of the station are propped against, finally, the pouring of the integral structure of the wall post of the station is completed, the construction period of the structure is greatly saved, the construction joints of each structural layer are reduced, and the self-waterproof performance of the concrete is improved.
(2) The symmetrical supporting mechanism comprises symmetrical supporting templates which are arranged on the left side and the right side and provided with steel beams, and a plurality of side wall opposite supporting steel pipes which are arranged on a main structure of the full framing, wherein the symmetrical supporting templates can effectively ensure that concrete does not explode when the side wall of the station is poured, the full framing supports the middle plate templates, the symmetrical supporting mechanism supports the side wall templates, the main structure of the station is guaranteed to have stable structure before integrally pouring, personal safety of constructors is improved, and potential safety hazards are avoided.
(3) The side wall opposite supporting steel pipes are horizontally and parallelly arranged between the adjacent transverse horizontal rods of the full framing and the left end and the right end extend out of the full framing, so that each layer of the full framing is ensured to have side wall symmetrical steel pipes which are horizontally and parallelly arranged, and the whole mixed supporting system structure is stable; fasteners for fastening the vertical rods are arranged at intervals on the pipe bodies of the side wall opposite-supporting steel pipes, tightly connected, and convenient to install and detach; the left end and the right end of the side wall opposite supporting steel pipe are provided with horizontal movement free ends, the overall length of the side wall opposite supporting steel pipe can be adjusted according to requirements, and the side wall opposite supporting steel pipe is high in flexibility and wide in applicability.
(4) When the full framing is positioned on the first layer for construction, the bottom is arranged on the poured station bottom plate and the bottom plate beam; when the full framing is positioned on the second layer and above, the bottom is directly arranged on the middle plate which is poured before, the full framing is skillfully built by means of the middle plate which is poured before, the arranging grooves are formed in the positions, corresponding to the middle plate beams and/or the bottom plate beams, of the full framing, two or more vertical rod supports are arranged under the middle plate beams, and the cross section size of the middle plate beams is larger than that of the middle plate beams, so that the supporting capacity of the position is effectively enhanced by adding additional vertical rods, and the stability of the full framing is guaranteed.
In conclusion, the method has the characteristics of safety, reliability, easiness in operation and implementation, high construction quality, high construction progress and strong support stability.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a partial enlarged view at a of fig. 1.
FIG. 3 is a schematic cross-sectional view of a full framing construction.
Fig. 4 is a longitudinal section view (partial) of fig. 3.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
referring to fig. 1-4, an integral pouring system for a multilayer subway open cut station mainly comprises a full framing 1 provided with symmetrical supporting mechanisms 2.
Fig. 3 and 4 show schematic cross-sectional views of a full framing, the full framing 1 consisting of diagonal bars 11, horizontal bars 12, vertical bars 13 and a full framing bottom form on top and equipped with steel beams.
The full framing 1 is provided with a placement groove corresponding to the middle plate beam 7 and/or the bottom plate beam 8, and two or more upright rods 13 are arranged right below the middle plate beam 7 to support the bottom of the middle plate beam 7.
The inclined rod 11, the horizontal rod 12 and the vertical rod 13 adopt a disc buckle type steel pipe bracket lap joint mode to form a main body structure of the full framing 1.
The top of the upright pole 13 is provided with a supporting jacking, the bottom of the upright pole is provided with a supporting jacking, the full framing bottom die is arranged on the jacking through a steel beam, the supporting jacking and the supporting jacking are all in phi 60 multiplied by 5.0 multiplied by 600mm, the cantilever length of the supporting jacking is not more than 600mm, and the exposed length of the supporting jacking is not more than 300mm.
The dimensions of the vertical rods 13 and the horizontal rods 12 are phi 60 multiplied by 3.2mm, and the distance between the vertical rods 13 is 1500mm horizontally multiplied by 1200mm longitudinally.
Fig. 1 and 2 show schematic cross-sectional views of a mixed-building system construction, and the symmetrical supporting mechanism 2 consists of symmetrical supporting templates 22 which are positioned at the left side and the right side and are provided with steel beams, and a plurality of side wall opposite supporting steel pipes 21 which are arranged on the main body structure of the full framing 1 in an array manner.
The symmetrical support templates 22 are arranged on the side edges of the templates of the station side walls 4 through steel beams, side wall opposite support steel pipes 21 are horizontally arranged between adjacent horizontal rods 12 of the full framing 1 in parallel, and the left end and the right end extend out of the full framing 1.
The side wall opposite supporting steel pipe 21 is provided with fasteners for fastening the upright posts 13 at intervals, and the left end and the right end of the side wall opposite supporting steel pipe 21 are provided with horizontal moving free ends.
The left end and the right end of the side wall opposite supporting steel pipe 21 are provided with screw rod jacking 211 in threaded connection with the two ends of the steel pipe, and the head of the screw rod jacking 211 horizontally moves to abut against the symmetrical supporting template 22 by adjusting the depth of screwing the screw rod at the tail of the jacking into the steel pipe.
The girder steel that full framing die block and symmetry support template 22 were equipped comprises girder 6 and trabecula, and girder 6 adopts I10I steel, and the trabecula adopts 100mm x 50mm rectangle steel pipe, and full framing die block adopts 20mm thick wood plywood, and symmetry support template 22 adopts 20mm thick cladding wood plywood.
The station middle plates are used as the partition plates among all layers of subway stations, each layer of station is independently erected with a full framing, and the wall posts of each layer are integrally poured. The bottom interval of every layer station medium plate 5 is provided with station center pillar 3.
The station side wall 4 is directly installed by adopting a whole die.
Pouring station bottom plate first, then when full framing 1 is located first layer and builds, the bottom is settled on pouring station bottom plate and bottom plate roof beam 8, bottom plate roof beam 8 is upper and lower correspondence with the medium plate roof beam 7 of waiting to pour, and support each other through two pole setting 13 of full framing 1, the corresponding position synchronous construction of station center pillar 3 of same layer, full framing 1, station side wall 4, station medium plate 5 is accomplished with the installation corresponding template, full framing 1 can support station medium plate 5, the side wall is to supporting steel pipe 21's free end can be adjusted to the tight symmetrical support template 22 of support, thereby support station side wall 4 template, finally integrative pouring forms side wall and medium plate, the construction joint can not appear, improve station waterproof construction quality through the self-waterproof ability of concrete.
When the full framing 1 is positioned on the second layer and above for construction, the bottom is directly arranged on the station middle plate 5 which is poured before, and finally templates of the station middle column 3, the station side wall 4 and the station middle plate 5 on the same layer are integrally poured.
Claims (4)
1. A integrative pouring system of multilayer subway open cut station, its characterized in that: comprises a full framing (1) which is provided with an adjustable symmetrical supporting mechanism (2), the full framing (1) comprises a diagonal rod (11), a horizontal rod (12), vertical rods (13) and a full framing bottom die which is arranged at the top and is provided with steel beams, the full framing (1) is provided with a placement groove corresponding to a middle plate beam (7) and/or a bottom plate beam (8), two or more vertical rods (13) are arranged right below the middle plate beam (7) to support the bottom of the middle plate beam (7), the adjustable symmetrical supporting mechanism (2) comprises symmetrical supporting templates (22) which are arranged at the left side and the right side and are provided with steel beams, and a plurality of side wall opposite supporting steel pipes (21) which are arranged on the main body structure of the full framing (1) in an array manner, the symmetrical support templates (22) are arranged on the side edges of the templates of the station side walls (4) through steel beams, side wall opposite support steel pipes (21) are horizontally arranged between adjacent horizontal rods (12) of the full framing support (1) in parallel, the left end and the right end of each side wall opposite support steel pipe (21) extend out of the full framing support (1), fasteners for fastening upright rods (13) are arranged at intervals of pipe bodies of the side wall opposite support steel pipes (21), horizontal moving free ends are arranged at the left end and the right end of each side wall opposite support steel pipe (21), after the corresponding positions of the station center posts (3), the full framing support (1), the station side walls (4) and the station middle plates (5) of the same layer are synchronously constructed and the corresponding templates are installed, the full framing (1) can support a template of a station middle plate (5), the free ends of the side wall opposite supporting steel pipes (21) can be adjusted to be abutted against the symmetrical supporting templates (22) so as to be abutted against the template of the station side wall (4), and when the full framing (1) is positioned on a first layer for building, the bottom is arranged on a poured station bottom plate and a bottom plate beam (8); when the full framing (1) is positioned on the second layer and above for construction, the bottom is directly arranged on the station middle plate (5) which is poured before; the girder steel that the full framing die block and the symmetrical support template (22) were equipped is made up of girder (6) and trabecula, girder (6) adopts I10I steel, trabecula adopts 100mm x 50mm rectangle steel pipe, full framing die block adopts 20mm thick wood plywood, symmetrical support template (22) adopts 20mm thick cladding wood plywood; the station side wall (4) is directly installed by adopting a whole die.
2. The multilayer subway open cut station integrated casting system according to claim 1, wherein: the left end and the right end of the side wall opposite supporting steel pipe (21) are provided with screw rod jacking brackets (211) in threaded connection with two ends of the steel pipe, and the head of the screw rod jacking brackets (211) horizontally moves to abut against the symmetrical supporting templates (22) by adjusting the depth of screwing the screw rods at the tail parts of the jacking brackets into the steel pipe.
3. The multilayer subway open cut station integrated casting system according to claim 1, wherein: the inclined rod (11), the horizontal rod (12) and the vertical rod (13) adopt a disc buckle type steel pipe support lap joint mode to form a main body structure of the full framing (1), the top end of the vertical rod (13) is provided with a supporting jacking, the bottom end of the vertical rod is provided with a supporting jacking, the full framing bottom die is arranged on the jacking through a steel beam, the supporting jacking and the supporting jacking all adopt phi 60 multiplied by 5.0 multiplied by 600mm, the cantilever length of the supporting jacking is not more than 600mm, and the exposed length of the supporting jacking is not more than 300mm.
4. A multilayer subway open cut station integral casting system according to claim 3, characterized in that: the vertical rods (13) and the horizontal rods (12) are 60 multiplied by 3.2mm in diameter, and the distance between the vertical rods (13) is 1500mm horizontally multiplied by 1200mm longitudinally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210186259.4A CN114561975B (en) | 2022-02-28 | 2022-02-28 | Integrative pouring system of multilayer subway open cut station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210186259.4A CN114561975B (en) | 2022-02-28 | 2022-02-28 | Integrative pouring system of multilayer subway open cut station |
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| Publication Number | Publication Date |
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| CN114561975A CN114561975A (en) | 2022-05-31 |
| CN114561975B true CN114561975B (en) | 2024-10-22 |
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| CN202210186259.4A Active CN114561975B (en) | 2022-02-28 | 2022-02-28 | Integrative pouring system of multilayer subway open cut station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105735139A (en) * | 2016-04-14 | 2016-07-06 | 浙江大学城市学院 | Supporting system for construction of cast-in-situ box beam in overpass and construction method of box beam |
| CN107013033A (en) * | 2017-04-26 | 2017-08-04 | 中铁十八局集团有限公司 | A kind of concrete side wall formwork for placing and its construction method |
| CN206736956U (en) * | 2017-04-20 | 2017-12-12 | 中铁上海工程局集团第五工程有限公司 | A kind of subway station standard paragraphs movable formwork device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100694503B1 (en) * | 2005-04-27 | 2007-03-13 | (주)한국건설공법 | Down-frame framework system and method for one-way beam and deck slab construction in basement |
| CN103967050B (en) * | 2014-01-29 | 2015-05-20 | 广州机施建设集团有限公司 | Construction system of subway station |
| CN109826232B (en) * | 2019-02-26 | 2021-03-02 | 中铁十二局集团有限公司 | Construction method of subway station |
| CN213710348U (en) * | 2020-10-25 | 2021-07-16 | 中铁二局第一工程有限公司 | Underground station side wall formwork supporting system combined with full support |
| CN214459670U (en) * | 2020-12-31 | 2021-10-22 | 云南省建设投资控股集团有限公司 | Ultrahigh cast-in-situ box girder combined formwork |
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- 2022-02-28 CN CN202210186259.4A patent/CN114561975B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735139A (en) * | 2016-04-14 | 2016-07-06 | 浙江大学城市学院 | Supporting system for construction of cast-in-situ box beam in overpass and construction method of box beam |
| CN206736956U (en) * | 2017-04-20 | 2017-12-12 | 中铁上海工程局集团第五工程有限公司 | A kind of subway station standard paragraphs movable formwork device |
| CN107013033A (en) * | 2017-04-26 | 2017-08-04 | 中铁十八局集团有限公司 | A kind of concrete side wall formwork for placing and its construction method |
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| CN114561975A (en) | 2022-05-31 |
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