CN114109450A - Construction method of arch cover type subway station arch springing - Google Patents
Construction method of arch cover type subway station arch springing Download PDFInfo
- Publication number
- CN114109450A CN114109450A CN202111221176.6A CN202111221176A CN114109450A CN 114109450 A CN114109450 A CN 114109450A CN 202111221176 A CN202111221176 A CN 202111221176A CN 114109450 A CN114109450 A CN 114109450A
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- Prior art keywords
- arch
- steel
- water stop
- extruded sheet
- base
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Links
- 238000010276 construction Methods 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 11
- 239000002023 wood Substances 0.000 claims abstract description 6
- 239000004567 concrete Substances 0.000 claims description 13
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 239000011150 reinforced concrete Substances 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 3
- 238000003908 quality control method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a construction method of an arch cover type subway station arch springing. It adopts hunch foot support and base template to be under construction, the hunch foot support is including setting up three square timbers in the bottom and a plurality of triangle-shaped support of fixed connection on three square timbers upper portion, the base template includes wood veneer board and connects at a plurality of back of the body stupefied of wood veneer board bottom, the fixed support sloping upper portion that sets up at the triangle-shaped support of base template, and the base template is two of vertical symmetry, the centre gripping has the steel limit waterstop between two base templates, two-layer extruded sheet has been laid on base template upper portion, the lower extreme of waterproof sheet presss from both sides between two-layer extruded sheet after the outside is folded, the upper end of steel limit waterstop is hung on the hunch portion reinforcing bar through the iron wire, the reservation sleeve of connecting the hunch portion reinforcing bar is buried underground in the extruded sheet. The invention can protect the reinforced concrete two-lining reserved sleeve from being polluted and position deviation, can control the line type of the steel-edge water stop and can prevent the waterproof board from being damaged in the subsequent process construction.
Description
Technical Field
The invention relates to a construction method of an arch cover type subway station arch springing, and belongs to the technical field of subway station construction.
Background
When the arch cover type station constructs a secondary lining at the arch springing position, the following common quality problems are easy to occur due to the restriction of small space and difficult operation of the arch springing position:
1. when the connection of the two lining steel bars adopts the mechanical connection of straight thread sleeves, the problem that the sleeves are polluted by cement slurry due to poor protection, so that the steel bars cannot be effectively connected is easy to occur;
2. the linear control of the steel-edge water stop at the construction joint is poor, and the steel-edge water stop is easy to deviate after concrete is poured;
3. the waterproof board reserved for the waterproof construction of the arch part is damaged in the lower step excavation process.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the construction method of the arch cover type subway station arch springing which can protect the reinforced concrete two-lining reserved sleeve from being polluted and causing position deviation, can control the line type of the steel edge water stop and can prevent the waterproof board from being damaged in the subsequent process construction.
The invention is realized by the following technical scheme: a construction method of an arch cover type subway station arch springing is characterized in that: adopt hunch foot support and base template to be under construction, the hunch foot support is including setting up three square timbers in the bottom and setting up a plurality of triangle-shaped supports on three square timbers upper portion with having the interval, and the support crossbeam of triangle-shaped support passes through bolt and three square timbers fixed connection, the base template includes wood glue board and connects a plurality of back of the body stupefied in wood glue board bottom, the fixed support sloping upper portion that sets up at the triangle-shaped support of base template, just two of base template are vertical symmetry, and the centre gripping has the steel limit waterstop between two base templates, and two-layer extruded sheet has been laid on base template upper portion, and the lower extreme of waterproof sheet presss from both sides between two-layer extruded sheet after folding to the outside, the upper end of steel limit waterstop is hung on the hunch portion reinforcing bar through the iron wire, and the reservation sleeve of connecting the hunch portion reinforcing bar is buried underground in the extruded sheet, and the construction step is as follows:
1) uniformly installing three square timbers on a concrete substrate at the designed positions of the arch springing at intervals, and fixing the triangular support on the square timbers through bolts;
2) firstly laying a layer of extruded sheet on a base template at the upper part of the triangular bracket, reserving the position of a steel-edge water stop belt, then laying a waterproof sheet, folding the lower end of the waterproof sheet outwards, extending the folded end to the side of the extruded sheet, then laying a second layer of extruded sheet, winding the reserved sleeve with an adhesive tape, and embedding the reserved sleeve into the extruded sheet;
3) the lower end of the steel-edged water stop is arranged between the two base templates and clamped by the two base templates, and the upper end of the steel-edged water stop is firmly bound with the arch reinforcing steel bars by using iron wires so as to be in place according to the designed position.
According to the invention, after the adhesive tape is wound on the reserved sleeve, the reserved sleeve can be protected by being buried in the extruded sheet, so that the reserved sleeve is prevented from being polluted by cement paste when concrete is poured; the two longitudinally symmetrical base templates are arranged, and the steel-edge water stop is arranged between the two base templates, so that the steel-edge water stop can be accurately fixed, the steel-edge water stop can be effectively prevented from deviating after concrete pouring, and the line type of the steel-edge water stop can be effectively controlled; the waterproof board can be protected by arranging the two layers of extruded sheets and folding the lower end of the waterproof board and clamping the folded lower end of the waterproof board between the two layers of extruded sheets, so that the waterproof board is prevented from being damaged in subsequent construction.
Further, the folding end of the waterproof plate extends to the position of the steel-edge water stop belt.
Furthermore, in order to ensure the structural strength of the arch springing bracket and facilitate turnover use, the triangular bracket is formed by welding and processing angle steel of 10cm and 10 cm.
Furthermore, in order to ensure the construction quality of the arch springing, an extruded sheet with a triangular section is arranged on the outer side of the base template and is closely attached to the base template.
Further, the back edge of the base template is 50 x 50mm square timber.
Furthermore, in order to ensure that the steel-edge water stop belt is fixed reliably, the fixed distance between the steel-edge water stop belt and the steel wire is 80 cm.
The invention has the beneficial effects that: according to the invention, the extruded sheet is arranged, and the reserved sleeve is embedded into the extruded sheet after being wound with the adhesive tape, so that the reserved sleeve can be protected, the pollution of cement slurry to the reserved sleeve during concrete pouring can be effectively prevented, and the common quality problem of steel bar connection is eliminated; the two longitudinally symmetrical base templates are arranged, and the steel-edge water stop is arranged between the two base templates, so that the steel-edge water stop can be accurately fixed, the embedding of the steel-edge water stop can be controlled to be straight and centered, the steel-edge water stop can be effectively prevented from deviating after concrete pouring, the line type of the steel-edge water stop can be effectively controlled, and the engineering construction quality is improved; the waterproof board can be protected by arranging the two layers of extruded sheets and folding the lower end of the waterproof board and clamping the folded lower end of the waterproof board between the two layers of extruded sheets, so that the waterproof board is prevented from being damaged in subsequent construction. The base template in the invention has uniform shaping, convenient processing and manufacturing, easy transportation, convenient multiple turnover and use and favorable reduction of construction cost.
Drawings
FIG. 1 is a schematic view of the mounting of the arch foot support in an embodiment of the invention;
FIG. 2 is a schematic view of a triangular stent according to the present invention;
FIG. 3 is a schematic structural view of a bracket beam of the triangular bracket according to the present invention;
FIG. 4 is a schematic view of the base form of the present invention;
in the figure, 1, a waterproof plate, 2, an arch reinforcing steel bar, 3, a back ridge, 4, a wood-rubber plate, 5, an extruded sheet, 6, an iron wire, 7, a steel plate water stop belt, 8, a triangular extruded sheet, 9, a reserved sleeve, 10, a triangular bracket, 101, a bracket cross beam, 102, a bracket oblique beam, 103, a bolt hole, 11, a square timber, 12, a concrete substrate, 13 and a foot beam.
Detailed Description
The invention will now be further illustrated by way of non-limiting examples in conjunction with the accompanying drawings:
as shown in the attached drawing, the construction method of the arch springing of the arch cover type subway station adopts an arch springing bracket and a base template for construction. The arch foot support comprises three square timbers 11 arranged at the bottom and a plurality of triangular supports 10 arranged at the upper parts of the three square timbers 11 at intervals. The square timber 11 adopts 10 × 10cm square timber. The triangular support 10 comprises a support cross beam 101, a support oblique beam 102 and a support rod connected between the support cross beam 101 and the support oblique beam 102, the triangular support 10 is processed by angle steel of 10cm and welded to form a triangular structure, and the design angle of the inclined plane of the arch springing part is 25 degrees. The support cross beam 101 is provided with a bolt hole 103 with the diameter of 26mm, and the support cross beam 101 of the triangular support 10 is fixedly connected with the three square timbers 11 through M24 bolts. The base template includes wooden glued board 4 and connects a plurality of back arriss 3 in wooden glued board 4 bottoms, and wooden glued board 4 adopts the wooden glued board that 1.5cm is thick, and back arris 3 adopts 50 x 50mm square timber, interval 15 cm. The base templates are fixedly arranged on the upper parts of the bracket oblique beams 102 of the triangular brackets 10 and are longitudinally symmetrical. A steel-edge water stop 7 is clamped between the two base templates, and two layers of extruded sheets 5 are laid on the upper portions of the base templates. The lower end of the waterproof board 1 is folded outwards and clamped between the two layers of extruded sheets 5. The upper end of the steel-edge water stop belt 7 is hung on the arch reinforcing steel bar 2 through an iron wire, and the reserved sleeve 9 for connecting the arch reinforcing steel bar is embedded in the extruded sheet 5. The construction steps are as follows:
1) processing a triangular bracket: the angle steel cutting oblique angle is accurate when the tripod is processed and constructed, and installation errors are avoided.
2) Uniformly installing three square timbers 11 on a concrete base 12 at the designed positions of the arch springing at intervals, and fixing the triangular supports 10 on the square timbers 11 through bolts at intervals of 70 cm; the quality control key points are as follows: the square timber 11 is placed on a flat concrete substrate 12 without virtual slag, and the concrete substrate 12 is generally concrete with the thickness of 10 cm;
3) firstly laying a layer of extruded sheet 5 on a base template at the upper part of a triangular support 10, reserving the position of a steel-edge water stop belt 7, then laying a waterproof sheet 1, controlling the reserved length of the waterproof sheet 1, folding the lower end of the waterproof sheet 1 outwards, extending the folded end to the side of the extruded sheet 5 to the position of the steel-edge water stop belt 7, then laying a second layer of extruded sheet 5, winding an adhesive tape on a reserved sleeve 9, and embedding the reserved sleeve into the extruded sheet 5 for protection; the quality control key points are as follows: the reserved length of the waterproof board meets the design requirement;
4) the lower end of the steel-edge water stop 7 is arranged between the two base templates and clamped by the two base templates, and the upper end of the steel-edge water stop 7 is firmly bound with the arch reinforcing steel bars 2 by using the iron wire 6 so as to be in place according to the designed position. The quality control key points are as follows: the position of the steel-edge water stop fixed by the iron wire 6 is to utilize the hole reserved by the iron wire to avoid re-tapping, the fixation is firm and reliable, and the fixed point falls off to influence the installation quality of the water stop when concrete is poured and vibrated.
5) And mounting the triangular extruded sheet 8 to ensure that the triangular extruded sheet 8 is closely attached to the base template.
The base template is uniform in shaping, convenient to process and manufacture, easy to carry and convenient to use for multiple times. The invention eliminates the common quality problem of steel bar connection, ensures that the steel edge water stop band is accurately fixed, prevents the waterproof board from being damaged due to the protection of the extruded sheet, and solves the quality problem of the arch springing part in the construction process.
Other parts in this embodiment are the prior art, and are not described herein again.
Claims (6)
1. A construction method of an arch cover type subway station arch springing is characterized in that: the arch foot support comprises three square timbers (11) arranged at the bottom and a plurality of triangular supports (10) arranged at the upper parts of the three square timbers (11) at intervals, a support beam (101) of each triangular support (10) is fixedly connected with the three square timbers (11) through bolts, each base template comprises a wood glue board (4) and a plurality of back ridges (3) connected to the bottom of the wood glue board (4), the base templates are fixedly arranged on the upper parts of support oblique beams (102) of the triangular supports (10), the base templates are longitudinally symmetrical, a steel-edge water stop (7) is clamped between the two base templates, two layers of extruded plates (5) are laid on the upper parts of the base templates, the lower ends of the waterproof plates (1) are clamped between the two layers of extruded plates (5) after being folded towards the outside, the upper ends of the steel-edge water stop (7) are hung on arch reinforcing steel bars through iron wires, the reserved sleeve (9) for connecting the arch part steel bars is embedded in the extruded sheet (5), and the construction steps are as follows:
1) uniformly installing three square timbers (11) on a concrete substrate at the designed positions of the arch springing at intervals, and then fixing the triangular support (10) on the square timbers (11) through bolts;
2) firstly laying a layer of extruded sheet (5) on a base template at the upper part of a triangular support (10), reserving the position of a steel-edge water stop belt (7), then laying a waterproof sheet (1), folding the lower end of the waterproof sheet (1) outwards, extending the folded end to the side of the extruded sheet (5), then laying a second layer of extruded sheet (5), winding the reserved sleeve (9) with an adhesive tape, and embedding the reserved sleeve into the extruded sheet (5) for protection;
3) the lower end of the steel-edge water stop (7) is arranged between the two base templates and clamped by the two base templates, and the upper end of the steel-edge water stop (7) is firmly bound with the arch reinforcing steel bars by using iron wires so as to be in place according to the designed position.
2. The construction method of the arch cover type subway station arch foot according to claim 1, characterized in that: the folding end of the waterproof plate (1) extends to the position of the steel-edge water stop belt (7).
3. The construction method of the arch cover type subway station arch foot according to claim 1, characterized in that: the triangular bracket (10) is formed by welding and processing angle steel of 10cm and 10 cm.
4. The construction method of the arch cover type subway station arch foot according to claim 1, characterized in that: the outer side of the base template is provided with a triangular extruded sheet (8) with a triangular section, and the triangular extruded sheet is closely attached to the base template.
5. The construction method of the arch cover type subway station arch foot according to claim 1, characterized in that: the back edges (3) of the base template are 50 x 50mm square timber.
6. The construction method of the arch cover type subway station arch springing as claimed in claim 1, 2, 3, 4 or 5, wherein: the steel edge water stop (7) is fixed by an iron wire at a fixed interval of 80 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111221176.6A CN114109450B (en) | 2021-10-20 | 2021-10-20 | Construction method of arch cover type subway station arch foot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111221176.6A CN114109450B (en) | 2021-10-20 | 2021-10-20 | Construction method of arch cover type subway station arch foot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114109450A true CN114109450A (en) | 2022-03-01 |
| CN114109450B CN114109450B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111221176.6A Active CN114109450B (en) | 2021-10-20 | 2021-10-20 | Construction method of arch cover type subway station arch foot |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1672141A1 (en) * | 2004-12-17 | 2006-06-21 | Pino Albanese | Support for shuttering plate |
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| CN105370289A (en) * | 2015-12-14 | 2016-03-02 | 中建六局土木工程有限公司 | Ultra-long shallow-buried excavation construction method for existing pipeline in complex environment |
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| US20190071968A1 (en) * | 2017-09-05 | 2019-03-07 | Chang'an University | Method for Deformation Control of Large-span Tunnel in Chlorite Schist Stratum |
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| DE202020103991U1 (en) * | 2020-05-21 | 2020-10-06 | China Railway No.10 Engineering Group Co., Ltd. | Self-propelled truss support formwork |
| CN211646488U (en) * | 2019-11-29 | 2020-10-09 | 中铁九局集团第四工程有限公司 | A device that is used for subway lid to dig reverse construction method construction joint water repellent |
| CN111979924A (en) * | 2020-09-09 | 2020-11-24 | 中国五冶集团有限公司 | Arch ring construction structure and construction method |
-
2021
- 2021-10-20 CN CN202111221176.6A patent/CN114109450B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1672141A1 (en) * | 2004-12-17 | 2006-06-21 | Pino Albanese | Support for shuttering plate |
| CN102877859A (en) * | 2012-09-28 | 2013-01-16 | 广东省长大公路工程有限公司 | End mould structure for tunnel secondary lining and mounting method thereof |
| CN104295301A (en) * | 2014-08-14 | 2015-01-21 | 山东科技大学 | Shallow-buried excavation construction method for cataclastic rock subway tunnel intersection |
| CN204645615U (en) * | 2015-05-25 | 2015-09-16 | 济南黄河路桥工程公司 | Top board rubber watertight strip fixed mould |
| CN105370289A (en) * | 2015-12-14 | 2016-03-02 | 中建六局土木工程有限公司 | Ultra-long shallow-buried excavation construction method for existing pipeline in complex environment |
| US20190071968A1 (en) * | 2017-09-05 | 2019-03-07 | Chang'an University | Method for Deformation Control of Large-span Tunnel in Chlorite Schist Stratum |
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| CN114109450B (en) | 2023-05-16 |
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