CN114482127A - Integrated construction method for main structure board, wall and column of subway open cut station - Google Patents
Integrated construction method for main structure board, wall and column of subway open cut station Download PDFInfo
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- CN114482127A CN114482127A CN202210185680.3A CN202210185680A CN114482127A CN 114482127 A CN114482127 A CN 114482127A CN 202210185680 A CN202210185680 A CN 202210185680A CN 114482127 A CN114482127 A CN 114482127A
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- 238000010276 construction Methods 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 88
- 239000010959 steel Substances 0.000 claims abstract description 88
- 238000009415 formwork Methods 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000011120 plywood Substances 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 6
- 238000009432 framing Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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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
Abstract
The invention discloses a main structure board wall column integrated construction method for a subway open cut station, which comprises the following steps: step A, building a wall-column integrated pouring mixing system for a main body structural slab of a subway open cut station; b, synchronously building a station center pillar steel bar template by means of the wall-column integrated pouring mixing system under construction, and synchronously building a station side wall waterproof and steel bar template by means of the wall-column integrated pouring mixing system under construction; c, building a middle plate steel bar formwork of the station by combining a full support bottom formwork and a middle column formwork in the built wall column integrated pouring mixing system; and D, adjusting the free ends of the side wall opposite-supporting steel pipes to tightly support the symmetrical supporting templates so as to tightly support the station side wall steel bar templates, and then integrally pouring the built station center pillar steel bar templates, the station side wall steel bar templates and the station middle plate steel bar templates.
Description
Technical Field
The invention relates to the technical field of open cut tunnel station structure construction, in particular to a main structure board wall column integrated construction method for a subway open cut station.
Background
According to the traditional open cut station structure construction, after a bottom plate is poured, a middle column, a side wall and a middle plate (beam) are constructed in sequence, the side wall is constructed firstly by utilizing a combined triangular support system, and then the middle plate is constructed; each procedure comprises support mounting and dismounting, template mounting and dismounting and concrete batch pouring, all procedures of the structural layer need to be completed in sequence, and the following defects exist in the process: 1) the construction period of each structural layer is long, each construction process is greatly influenced by the cycle time sequence, the input resources are more, and the construction cost is high; 2) after the construction of the side wall is finished, the construction of a middle plate full framing system cannot be immediately carried out under the influence of conditions such as concrete strength, maintenance, triangular support system dismantling and the like; 3) 4 longitudinal construction joints are formed in each structural layer after the medium plate is poured, and the waterproof performance of the structural concrete is not facilitated.
Disclosure of Invention
The invention aims to provide an integrated construction method for main structure plate walls and columns of a subway open-cut station, which is short in construction period and low in construction cost and solves the problems that each structure plate wall and column of the traditional open-cut station is long in construction period, high in construction cost and capable of generating longitudinal construction joints.
Therefore, the technical scheme adopted by the invention is as follows: a main structure plate wall column integrated construction method for an open cut subway station comprises the following steps:
step A, building a wall-column integrated pouring mixing system for a main body structural slab of a subway open cut station; the wall column integrated pouring and mixing system comprises a full-hall support erected with a symmetrical support mechanism, wherein the full-hall support comprises inclined rods, horizontal rods, vertical rods and a full-hall support bottom die which is positioned at the top and is provided with steel beams, the symmetrical support mechanism comprises symmetrical support templates which are positioned at the left side and the right side and are provided with the steel beams and a plurality of side wall oppositely-supporting steel tubes which are arranged on a main body structure of the full-hall support in an array mode, the symmetrical support templates are arranged on the side edges of the side walls of a station to be constructed through the steel beams, the side wall oppositely-supporting steel tubes are horizontally and parallelly erected between adjacent transverse horizontal rods of the full-hall support, the left ends and the right ends of the side wall oppositely-supporting steel tubes extend out of the full-hall support, fasteners which are arranged at intervals are fastened to the vertical rods, and the left ends and the right ends of the side wall oppositely-supporting steel tubes are provided with horizontally-moving free ends;
b, synchronously building a station center pillar steel bar template by means of the wall-column integrated pouring mixing system under construction, and synchronously building a station side wall waterproof and steel bar template by means of the wall-column integrated pouring mixing system under construction;
c, building a middle plate steel bar formwork of the station by combining a full support bottom formwork and a middle column formwork in the built wall column integrated pouring mixing system;
and D, the full support in the wall-column integrated pouring mixed system supports the station medium plate template, the free end of the steel pipe is adjusted to be tightly supported by the side wall, so that the station side wall steel bar template is tightly supported, and then the built station center pillar steel bar template, the station side wall steel bar template and the station medium plate steel bar template are integrally poured.
Preferably, in the step a, the left end and the right end of the steel pipe supported by the side wall are provided with screw rod jacking supports in threaded connection with the two ends of the steel pipe, and the head parts of the screw rod jacking supports horizontally move to support the symmetrical supporting templates tightly by adjusting the depth of the screw rods at the tail parts of the jacking supports screwed into the steel pipe, so that the operation is convenient and fast, and the flexibility is strong.
Further preferably, in step A, down tube, horizontal pole and pole setting adopt the dish to detain formula steel pipe support overlap joint mode and constitute full hall support major structure, make full hall support's structural stability strong, the pole setting top is equipped with supports the support and holds in the palm, the bottom is equipped with the support collet, full hall support die block is settled on the support through the girder steel, support the support and hold in the palm, the support collet all adopts phi 60 x 5.0 x 600mm type, the selected material is suitable, the support nature is good, support the cantilever length that holds in the palm in the top and be not more than 600mm, the support collet exposes length and is not more than 300 mm.
Preferably, in the step a, the sizes of the vertical rods and the horizontal rods are phi 60 × 3.2mm, the distance between the vertical rods is transverse 1500mm × longitudinal 1200mm, the distance is moderate, the steel beams arranged on the full support bottom die and the symmetrical support templates are respectively composed of main beams and small beams, the main beams are I10I-shaped steel, the small beams are rectangular steel tubes with the size of 100mm × 50mm, the full support bottom die is made of wood plywood with the thickness of 20mm, the symmetrical support templates are made of clad wood plywood with the thickness of 20mm, the material selection is reasonable, and the application is proper.
Preferably, in the step B, the station side wall template is subjected to formwork shaping, so that gaps between the templates are reduced, the concrete surface of the side wall is smoother, smooth and seamless, and the side wall can be flexibly constructed.
The invention has the beneficial effects that:
(1) the wall-column integrated pouring mixing system is adopted, the symmetrical supporting mechanisms are erected on the full support, and the two supporting systems are ingeniously combined together, so that the time sequence construction steps of a middle plate, a side wall and a middle column (collectively called as 'plate-wall columns') of each structural layer of the traditional open cut station can be changed; build station medium plate steel bar formwork with the help of building full hall support die block combination center pillar template in the mixed system of wall post integral type pouring, construction convenience, the adjustment side wall supports the template to supporting tight symmetry to the free end that props the steel pipe, thereby support tight station side wall steel bar formwork, then carry out integrative pouring to the station center pillar steel bar formwork who builds, station side wall steel bar formwork, station medium plate steel bar formwork, greatly save structure construction period, reduce each structural layer construction joint, promote the concrete from waterproof performance.
(2) Symmetrical supporting mechanism arranges the side wall on full hall support major structure to propping the steel pipe including being located left and right sides and being equipped with the symmetrical supporting template and a plurality of array of girder steel, and the symmetrical supporting template concrete does not explode the mould when effectively guaranteeing to pour the station side wall, and full hall support supports medium plate template, and symmetrical supporting mechanism supports the side wall, guarantees that station major structure slab wall post stable in structure before integrative pouring, improves constructor's personal safety, stops the potential safety hazard.
(3) The side wall oppositely-supported steel pipes are horizontally and parallelly erected between adjacent transverse horizontal rods of the full-framing support, and the left end and the right end of each side wall oppositely-supported steel pipe extend out of the full-framing support, so that each layer of the full-framing support is provided with the horizontally and parallelly-arranged side wall symmetrical steel pipes, and the whole mixed-erection support structure is stable; fasteners arranged at intervals on the pipe body of the side wall oppositely-supported steel pipe are fastened to the vertical rods and are tightly connected, so that the installation and the disassembly are convenient; the side wall sets up the horizontal migration free end to propping the steel pipe left and right ends, can adjust the whole length that the side wall propped the steel pipe according to the demand, and the flexibility is strong, extensive applicability.
In conclusion, the method has the characteristics of safety, reliability, easiness in operation and implementation, high construction quality and high construction progress.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a partially enlarged view of a portion a of fig. 1.
Fig. 3 is a schematic cross-sectional view of the construction of the full framing.
Fig. 4 is a longitudinal sectional view (partial) of fig. 3.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings:
referring to fig. 1 to 4, a method for integrally constructing a main structure slab, a wall and a column of a subway open cut station includes the following steps:
step A, building a wall-column integrated pouring mixing system for a main body structural slab of a subway open cut station; the wall column integrated pouring and mixing system mainly comprises a full support 1 provided with symmetrical support mechanisms 2.
The full hall support 1 consists of an inclined rod 11, a horizontal rod 12, a vertical rod 13 and a full hall support bottom die which is positioned at the top and is provided with a steel beam.
In the step A, the left end and the right end of the side wall oppositely-supporting steel tube 21 are provided with screw rod jacking supports 211 which are in threaded connection with the two ends of the steel tube, and the head parts of the screw rod jacking supports 211 horizontally move to abut against the symmetrical supporting templates 22 by adjusting the depth of the screw rods at the tail parts of the jacking supports screwed into the steel tube.
In the step A, 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-hall support, the top end of the vertical rod 13 is provided with a supporting top support, the bottom end of the vertical rod is provided with a supporting bottom support, a full-hall support bottom die is arranged on the top support through a steel beam, the supporting top support and the supporting bottom support are all in a phi 60 multiplied by 5.0 multiplied by 600mm type, the length of a cantilever of the supporting top support is not more than 600mm, and the exposed length of the supporting bottom support is not more than 300 mm.
In the step A, the sizes of the vertical rods 13 and the horizontal rods 12 are phi 60 multiplied by 3.2mm, the distance between the vertical rods 13 is transverse 1500mm multiplied by longitudinal 1200mm, the steel beams arranged on the full support bottom die and the symmetrical support templates 22 are respectively composed of main beams 6 and small beams, the main beams 6 adopt I10I-shaped steel, the small beams adopt rectangular steel tubes with the thickness of 100mm multiplied by 50mm, the full support bottom die adopts wood plywood with the thickness of 20mm, and the symmetrical support templates 22 adopt clad wood plywood with the thickness of 20 mm.
And step B, synchronously building a reinforced formwork of the station center pillar 3 by means of the wall-pillar integrated pouring mixing system in building, and synchronously building a waterproof and reinforced formwork of the station side wall 4 by means of the wall-pillar integrated pouring mixing system in building.
And in the step B, the template of the station side wall 4 is finished.
And step C, building a steel bar formwork of the station middle plate 5 by combining the full support bottom formwork and the center column formwork in the built wall column integrated pouring mixing system, taking the station middle plate as a partition plate between each layer of the subway station, building a full support on each layer of the station, and pouring the plate wall columns on each layer integrally. The bottom of each layer of station middle plate is provided with a longitudinally extending station center pillar at intervals.
Step D, the full-hall support 1 in the wall-column integrated pouring mixed system supports the station medium plate 5 template, the free end of the steel pipe 21 is adjusted to be tightly supported by the symmetrical support template 22 through the side wall, so that the station side wall 4 steel bar template is tightly supported, then the built station center column 3 steel bar template, the station side wall 4 steel bar template and the station medium plate 5 steel bar template are integrally poured, construction joints can not appear, and the waterproof construction quality of the station is improved through the self-waterproof capability of concrete.
Claims (5)
1. A wall-column integrated construction method for a main body structure plate of a subway open cut station is characterized by comprising the following steps:
step A, building a wall-column integrated pouring mixing system for a main body structural slab of a subway open cut station; the wall column integrated pouring and mixing system comprises full-hall supports (1) which are provided with symmetrical supporting mechanisms (2), wherein each full-hall support (1) comprises inclined rods (11), horizontal rods (12), vertical rods (13) and full-hall support bottom dies which are arranged at the tops and are provided with steel beams, each symmetrical supporting mechanism (2) comprises symmetrical supporting templates (22) which are arranged on the left side and the right side and are provided with the steel beams and a plurality of side wall oppositely-supporting steel pipes (21) which are arranged on the main body structure of the full-hall support (1) in an array mode, the symmetrical supporting templates (22) are arranged on the side edges of side walls (4) of a station to be constructed through the steel beams, the side wall oppositely-supporting steel pipes (21) are horizontally and parallelly arranged between adjacent transverse horizontal rods (12) of the full-hall support (1) and the left end and the right end of each side wall oppositely-supporting steel pipe (21) extend out of the full-hall support (1), and fasteners (13) are arranged at intervals with the pipe bodies of the vertical rod oppositely-supporting steel pipes (21), the left end and the right end of the side wall opposite-supporting steel pipe (21) are provided with horizontal moving free ends;
b, synchronously building a reinforced template of the station center post (3) by means of the built wall-post integrated pouring mixing system, and synchronously building a waterproof and reinforced template of the station side wall (4) by means of the built wall-post integrated pouring mixing system;
c, building a steel bar template of the station middle plate (5) by combining a full support bottom die and a center column template in the built wall-column integrated pouring mixing system;
step D, the full-hall support (1) in the wall-column integrated pouring mixed system supports the station middle plate (5) formwork, the free end of the steel pipe (21) is adjusted to be tightly supported by the side wall to the tightly-supported symmetrical supporting formwork (22), so that the station side wall (4) steel bar formwork is tightly supported, and then the built station middle column (3) steel bar formwork, the station side wall (4) steel bar formwork and the station middle plate (5) steel bar formwork are integrally poured.
2. The integrated construction method for the main body structure plate wall column of the subway open cut station as claimed in claim 1, characterized in that: in the step A, the left end and the right end of the side wall oppositely-supported steel pipe (21) are provided with screw rod jacking supports (211) in threaded connection with the two ends of the steel pipe, and the head of each screw rod jacking support (211) horizontally moves to abut against the symmetrical supporting template (22) by adjusting the depth of a screw rod at the tail of each jacking support screwed into the steel pipe.
3. The integrated construction method for the main body structure plate wall column of the subway open cut station as claimed in claim 1, characterized in that: in the step A, the down tube (11), the horizontal rod (12) and the vertical rod (13) adopt the plate buckle type steel tube support lap joint mode to form a main body structure of the full-space support (1), the top end of the vertical rod (13) is provided with a support top support, the bottom end of the vertical rod is provided with a support bottom support, a bottom die of the full-space support is arranged on the support top through a steel beam, the support top support and the support bottom support are respectively in a phi 60 multiplied by 5.0 multiplied by 600mm type, the cantilever length of the support top support is not more than 600mm, and the exposed length of the support bottom support is not more than 300 mm.
4. The integrated construction method for the main body structure plate wall column of the subway open cut station as claimed in claim 1, characterized in that: in the step A, the sizes of the vertical rods (13) and the horizontal rods (12) are phi 60 multiplied by 3.2mm, the distance between the vertical rods (13) is transverse 1500mm multiplied by longitudinal 1200mm, steel beams equipped on the full support bottom die and the symmetrical support templates (22) are respectively composed of a main beam (6) and a small beam, the main beam (6) adopts I10I-shaped steel, the small beam adopts a rectangular steel tube with the thickness of 100mm multiplied by 50mm, the full support bottom die adopts wood plywood with the thickness of 20mm, and the symmetrical support templates (22) adopt clad wood plywood with the thickness of 20 mm.
5. The integrated construction method for the main body structure plate wall column of the subway open cut station as claimed in claim 1, characterized in that: and in the step B, the template of the station side wall (4) adopts a whole template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210185680.3A CN114482127A (en) | 2022-02-28 | 2022-02-28 | Integrated construction method for main structure board, wall and column of subway open cut station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210185680.3A CN114482127A (en) | 2022-02-28 | 2022-02-28 | Integrated construction method for main structure board, wall and column of subway open cut station |
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| CN114482127A true CN114482127A (en) | 2022-05-13 |
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| CN202210185680.3A Pending CN114482127A (en) | 2022-02-28 | 2022-02-28 | Integrated construction method for main structure board, wall and column of subway open cut station |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013185277A1 (en) * | 2012-06-11 | 2013-12-19 | 浙江省建工集团有限责任公司 | Constructing method for concrete cylinder of construction steel bar of high-rise steel structure |
| 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 |
| CN108914966A (en) * | 2018-08-15 | 2018-11-30 | 北京市政建设集团有限责任公司 | A kind of open-cut station main structure and its construction method |
| CN109826232A (en) * | 2019-02-26 | 2019-05-31 | 中铁十二局集团有限公司 | The 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 |
-
2022
- 2022-02-28 CN CN202210185680.3A patent/CN114482127A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013185277A1 (en) * | 2012-06-11 | 2013-12-19 | 浙江省建工集团有限责任公司 | Constructing method for concrete cylinder of construction steel bar of high-rise steel structure |
| 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 |
| CN108914966A (en) * | 2018-08-15 | 2018-11-30 | 北京市政建设集团有限责任公司 | A kind of open-cut station main structure and its construction method |
| CN109826232A (en) * | 2019-02-26 | 2019-05-31 | 中铁十二局集团有限公司 | The 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 |
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