CN112081606A - Slidable inverted arch formwork and construction method thereof - Google Patents
Slidable inverted arch formwork and construction method thereof Download PDFInfo
- Publication number
- CN112081606A CN112081606A CN202011062652.XA CN202011062652A CN112081606A CN 112081606 A CN112081606 A CN 112081606A CN 202011062652 A CN202011062652 A CN 202011062652A CN 112081606 A CN112081606 A CN 112081606A
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- template
- inverted arch
- slidable
- longitudinal rail
- formwork
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- 238000010276 construction Methods 0.000 title claims abstract description 53
- 238000009415 formwork Methods 0.000 title claims description 41
- 230000007246 mechanism Effects 0.000 claims description 14
- 238000007667 floating Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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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
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- 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
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a slidable inverted arch template, which comprises a middle template and side templates positioned on two sides of the middle template, wherein the side templates are provided with a first longitudinal rail arranged along the depth direction of an inverted arch, the middle template is provided with a telescopic frame capable of being telescopically adjusted, and the telescopic frame can be slidably arranged on the first longitudinal rail along the first longitudinal rail in a reciprocating manner. Also discloses a construction method of the slidable inverted arch template, which comprises the following steps: s1: fixing a side template; s2: installing an intermediate template; s3: adjusting the position of the middle template; s4: pouring and sliding the middle template; s5: lifting a middle template and treating the surface of a middle inverted arch; s6: the whole moves. The slidable inverted arch template and the construction method thereof have the advantages of being convenient to construct, capable of reducing construction cost, capable of improving construction convenience and construction efficiency and the like.
Description
Technical Field
The invention relates to tunnel construction equipment, in particular to a slidable inverted arch template and a construction method thereof.
Background
In recent years, the tunnel construction technology in China is continuously developed, and new knowledge is provided for the requirements of inverted arch construction in order to effectively improve the stability and durability of an inverted arch structure. The template for inverted arch construction is optimized from a simple single small template to a trestle bridge driving an integral type low-side wall inverted arch template, and then further to a full inverted arch template of a full inverted arch section template. The tunnel inverted arch layer is constructed with full-width inverted arch template, and the template cost increases to a certain extent, and inverted arch construction space is also further compressed, and when pouring the construction, the inverted arch layer can only be pour and vibrate through the work window in the below of template, can't vibrate comprehensively. In actual construction application, air bubbles are easily formed on the surface of finally-formed inverted arch concrete, primary pulp plastering and timely secondary cleaning cannot be carried out on the surface of the inverted arch layer due to arrangement of a full-width inverted arch template, and certain safety risks are accompanied when the appearance of the inverted arch layer is influenced by the air bubbles.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a slidable inverted arch template and a construction method thereof, wherein the construction is convenient, the construction cost can be reduced, and the construction convenience and the construction efficiency can be improved.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a slidable invert template, includes middle template and is located the side form board of middle template both sides, be equipped with the first vertical track of arranging along the invert depth direction on the side form board, be equipped with the expansion bracket that can stretch out and draw back and adjust on the middle template, the expansion bracket can be followed first vertical track reciprocating motion ground and slided and locate on the first vertical track.
As a further improvement of the above technical solution:
the side templates are provided with a support frame, and the first longitudinal rail is fixed on the support frame.
The telescopic frame comprises a top frame and a telescopic mechanism, the bottom end of the telescopic mechanism is fixed on the middle template, the top frame is fixed at the top end of the telescopic mechanism, and the top frame is slidably arranged on the first longitudinal rail.
And the top frame is provided with a guide roller matched with the first longitudinal rail.
The telescopic mechanism is a telescopic oil cylinder.
The sideforms are longer than the intermediate form.
And the side templates are provided with support rods for preventing floating.
And a sealing gasket is arranged at the contact part of the middle template and the side template.
The construction method of the slidable inverted arch formwork comprises the following steps:
s1: fixing a side template: fixing two side templates on two sides of the tunnel respectively;
s2: installing a middle template: installing a telescopic frame on the middle template on a first longitudinal rail on the side template in a sliding manner;
s3: adjusting the position of the middle template: sliding the middle template to a position to be poured along the first longitudinal rail, extending the telescopic frame, and lowering the middle template to be butted with the side templates;
s4: pouring and sliding of the middle template: pouring concrete below the inverted arch template, sliding the middle template along the longitudinal rail, forming an inverted arch below the middle template, and forming and pouring side templates;
s5: lifting a middle template and performing surface treatment on a middle inverted arch: lifting the middle template through the telescopic frame to separate the middle template from the middle inverted arch and treating the surface of the middle inverted arch;
s6: moving integrally: and integrally moving the inverted arch template to the next construction station through the trestle trolley.
Compared with the prior art, the invention has the advantages that:
the slidable inverted arch template is divided into two side templates and an intermediate template positioned between the two side templates, wherein a first longitudinal rail is fixedly arranged on each side template, two sides of the intermediate template are respectively provided with a telescopic frame which is respectively arranged on the first longitudinal rails on the two side templates in a sliding manner, so that the intermediate template can move back and forth along the first longitudinal rail, when the concrete on the lower layer of an inverted arch is poured, the intermediate template can move to leave a space, the construction is more convenient, the concrete can be vibrated and compacted in time, the construction quality is improved, after the concrete on the intermediate layer is poured, the intermediate template moves again, the accumulated concrete is leveled and formed, meanwhile, the concrete can be poured below the templates on two sides, the construction is very convenient and fast, and compared with the movement of a full-width inverted arch, only the intermediate template is moved, the inverted arch construction quality is ensured, the implementation is easier, and the cost is lower; and the expansion bracket can lift the middle template, specifically, the expansion bracket extends to enable the middle template to descend and be butted with the side templates at two sides, the expansion bracket expands and retracts to enable the middle template to ascend so as to enable the middle template to be separated from the middle inverted arch, thereby treating the surface of the middle inverted arch, and improving the construction quality, the construction convenience and the construction efficiency.
According to the construction method of the slidable inverted arch template, the intermediate template slides along the first longitudinal rail to be adjusted to the position to be poured, so that the trouble of dismounting and mounting the re-erecting template is reduced, and the convenience and efficiency of construction are improved; and moreover, the middle template is lifted through the telescopic frame, the surface of the middle inverted arch is processed, and the construction quality, the construction convenience and the construction efficiency are improved.
Drawings
Fig. 1 is a front view schematically showing the construction of the inverted arch form of the invention.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is an enlarged view at B in fig. 1.
Fig. 4 is a side view of the inverted arch form of the invention.
Fig. 5 is a front view schematically showing the structure of the slidable inverted arch form of the present invention when the intermediate form is separated from the intermediate inverted arch.
Fig. 6 is a front view schematically showing the structure of the sliding inverted arch form of the present invention when the form is moved as a whole.
The reference numerals in the figures denote:
1. an intermediate template; 2. a sideform; 21. a support frame; 22. a support bar; 3. a first longitudinal rail; 4. a telescopic frame; 41. a top frame; 42. a telescoping mechanism; 5. a guide roller; 6. a tunnel; 7. an inverted arch; 8. a trestle trolley; 9. and a gasket.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples of the specification.
Fig. 1 to 4 show an embodiment of the slidable inverted arch form according to the invention, the slidable inverted arch form comprises a middle form 1 and side forms 2 located at two sides of the middle form 1, the side forms 2 are provided with first longitudinal rails 3 arranged along the depth direction of an inverted arch 7, the middle form 1 is provided with telescopic frames 4 capable of being telescopically adjusted, and the telescopic frames 4 are slidably arranged on the first longitudinal rails 3 along the first longitudinal rails 3 in a reciprocating manner.
The inverted arch formwork comprises two side formworks 2 and a middle formwork 1 positioned between the two side formworks 2, wherein a first longitudinal rail 3 is fixedly arranged on each side formwork 2, telescopic frames 4 are respectively arranged on two sides of each middle formwork 1 and are respectively arranged on the first longitudinal rails 3 on the two side formworks 2 in a sliding mode, so that the middle formwork 1 can reciprocate along the first longitudinal rail 3, the side formworks 2 and the middle formwork 1 form a profile surface required by tunnel construction, when concrete on the lower layer of an inverted arch 7 is poured, the middle formwork 1 can move to leave a space, the construction is more convenient, the concrete can be vibrated and compacted in time, the construction quality is improved, after the concrete on the middle layer is poured, the middle formwork 1 moves again, the accumulated concrete is leveled and formed, meanwhile, the concrete can be poured below the two side formworks 2, the construction is very convenient and rapid, compared with the full-width inverted arch movement, only the middle formwork 1 is moved, the construction quality of the inverted arch 7 is guaranteed, and meanwhile, the implementation is easier and the cost is lower; and, the expansion bracket 4 can make the middle template 1 rise, specifically, the expansion bracket 4 extends, makes the middle template 1 fall, butt joint with the side templates 2 on both sides, and the expansion bracket 4 expands and contracts, makes the middle template 1 rise, so that the middle template 1 is separated from the middle invert 7 that has already been poured, thereby handles the surface of the middle invert 7, has improved construction quality, construction convenience and efficiency.
In this embodiment, as shown in fig. 1, a support frame 21 is arranged on the side mold plate 2, and the first longitudinal rail 3 is fixed on the support frame 21. The side formworks 2 are fixed on the lower sides of the supporting frames 21, the structure is more stable, one side of the middle formwork 1 is arranged on the first longitudinal rail 3 on the side formwork 2 in a sliding mode through the expansion bracket 4 on the side, the other side of the middle formwork is arranged on the first longitudinal rail 3 on the side formwork 2 in a sliding mode through the expansion bracket 4 on the side, and the middle formwork 1 can be stably lifted.
In this embodiment, as shown in fig. 3, the telescopic frame 4 includes a top frame 41 and a telescopic mechanism 42, a bottom end of the telescopic mechanism 42 is fixed on the middle formwork 1, the top frame 41 is fixed at a top end of the telescopic mechanism 42, and the top frame 41 is slidably disposed on the first longitudinal rail 3. The top frame 41, the telescopic mechanism 42 and the middle template 1 are connected into a whole liftable structure, the whole liftable structure is slidably arranged on the first longitudinal rail 3, the mould position can be adjusted by sliding along the first longitudinal rail 3, and the mould can be lifted to realize mould erection and demoulding.
In this embodiment, as shown in fig. 1 and 3, the top frame 41 is provided with a guide roller 5 engaged with the first longitudinal rail 3. As a preferable technical scheme, for example, the first longitudinal rail 3 is an i-steel rail, the guide roller 5 is a T-shaped structure, and the two sides of the middle formwork 1 are matched with the first longitudinal rail 3 and the guide roller 5, so that the middle formwork 1 can move more stably and smoothly.
In this embodiment, the telescopic mechanism 42 is a telescopic cylinder.
In this embodiment, the sideforms 2 are longer than the intermediate form 1, as shown in figure 4. In particular, the length of the sideforms 2 in the longitudinal direction of the tunnel 6 is at least one time longer than the intermediate form 1, so that the intermediate form 1 can be constructed to form at least two sections of inverted arches 7 along the first longitudinal rails 3.
In this embodiment, as shown in fig. 1, the sideforms 2 are provided with support rods 22 for preventing floating. The supporting rods 22 prevent the inverted arch formwork from floating upwards, and the construction quality of the inverted arch 7 is guaranteed.
In this embodiment, as shown in fig. 2, a gasket 9 is disposed at a contact portion between the middle mold plate 1 and the side mold plate 2. The gap between the side formwork 2 and the middle formwork 1 is filled through the sealing gasket 9, and concrete slurry is prevented from overflowing. Specifically, as shown in fig. 2, the packing 9 is fixed to the intermediate die plate 1 by bolts. In other embodiments the gasket 9 may be bolted to the sideform 2.
Fig. 1, 5 and 6 show an embodiment of the construction method of the slidable inverted arch form according to the present invention, which comprises the steps of:
s1: fixing the side template 2: fixing two side templates 2 on two sides of a tunnel 6 respectively;
s2: installing an intermediate template 1: installing a telescopic frame 4 on the middle template 1 on a first longitudinal rail 3 on the side template 2 in a sliding manner;
s3: adjusting the position of the middle template 1: sliding the middle template 1 to a position to be poured along the first longitudinal rail 3, extending the telescopic frame 4, and lowering the middle template 1 to be in butt joint with the side template 2;
s4: pouring and sliding of the middle template 1: concrete is poured below the inverted arch formwork, the middle formwork 1 slides along the longitudinal rail 3, the inverted arch below the middle formwork 1 is molded, and the side formwork 2 is molded and poured; (ii) a
S5: as shown in fig. 5, the intermediate die plate 1 is lifted and the intermediate inverted arch 7 is surface-treated: lifting the middle template 1 through the telescopic frame 4 to separate the middle template 1 from the middle inverted arch 7 and process the surface of the middle inverted arch 7; when the telescopic frame 4 is retracted, the middle template can be lifted;
s6: moving integrally: the inverted arch template is integrally moved to the next construction station through the trestle trolley 8. As shown in fig. 6, the side formwork 2 is lifted by the trestle trolley 8, so that the inverted arch formwork integrally moves to the next construction station.
According to the construction method of the slidable inverted arch template, the intermediate template 1 slides along the first longitudinal rail 3 to be adjusted to the position to be poured, so that the trouble of dismounting and mounting the re-erecting template is reduced, and the convenience and efficiency of construction are improved; in addition, the middle template 1 is lifted through the expansion bracket 4, the surface of the middle inverted arch 7 is processed, and the construction quality, the construction convenience and the construction efficiency are improved.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (9)
1. A slidable inverted arch template is characterized in that: including middle template (1) and side form board (2) that are located middle template (1) both sides, be equipped with on side form board (2) along first vertical track (3) that inverted arch (7) depth direction was arranged, be equipped with expansion bracket (4) that can stretch out and draw back and adjust on middle template (1), expansion bracket (4) can be followed first vertical track (3) reciprocating motion ground and slided and locate on first vertical track (3).
2. A slidable inverted arch template according to claim 1, wherein: the side die plate (2) is provided with a support frame (21), and the first longitudinal rail (3) is fixed on the support frame (21).
3. A slidable inverted arch template according to claim 1, wherein: the telescopic frame (4) comprises a top frame (41) and a telescopic mechanism (42), the bottom end of the telescopic mechanism (42) is fixed on the middle template (1), the top frame (41) is fixed at the top end of the telescopic mechanism (42), and the top frame (41) is slidably arranged on the first longitudinal rail (3).
4. A slidable inverted arch template according to claim 3, wherein: and the top frame (41) is provided with a guide roller (5) matched with the first longitudinal rail (3).
5. A slidable inverted arch template according to claim 3, wherein: the telescopic mechanism (42) is a telescopic oil cylinder.
6. A slidable inverted arch template according to claim 1, wherein: the side formworks (2) are longer than the middle formwork (1).
7. A slidable inverted arch template according to claim 1, wherein: and a support rod (22) for preventing floating is arranged on the side template (2).
8. A slidable inverted arch template according to claim 1, wherein: and a sealing gasket (9) is arranged at the contact part of the middle template (1) and the side template (2).
9. A construction method of a slidable inverted arch form according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
s1: fixing the side template (2): fixing two side templates (2) on two sides of a tunnel (6) respectively;
s2: the middle template (1) is arranged: arranging a telescopic frame (4) on the middle template (1) on a first longitudinal rail (3) on the side template (2) in a sliding manner;
s3: adjusting the position of the middle template (1): sliding the middle template (1) to a position to be poured along the first longitudinal rail (3), extending the telescopic frame (4), and lowering the middle template (1) to be butted with the side templates (2);
s4: pouring and sliding the middle template (1): concrete is poured below the inverted arch formwork, the middle formwork (1) slides along the longitudinal rail (3), the inverted arch below the middle formwork (1) is molded, and the side formwork (2) is molded and poured;
s5: lifting the middle template (1) and performing surface treatment on the middle inverted arch (7): lifting the middle template (1) through the telescopic frame (4), separating the middle template (1) from the middle inverted arch (7), and treating the surface of the middle inverted arch (7);
s6: moving integrally: the inverted arch template is integrally moved to the next construction station through a trestle trolley (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062652.XA CN112081606A (en) | 2020-09-30 | 2020-09-30 | Slidable inverted arch formwork and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062652.XA CN112081606A (en) | 2020-09-30 | 2020-09-30 | Slidable inverted arch formwork and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112081606A true CN112081606A (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011062652.XA Pending CN112081606A (en) | 2020-09-30 | 2020-09-30 | Slidable inverted arch formwork and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464165A (en) * | 2021-06-30 | 2021-10-01 | 湖南五新模板有限公司 | Reversible inverted arch formwork and construction method thereof |
| CN113605932A (en) * | 2021-06-30 | 2021-11-05 | 湖南五新模板有限公司 | Inverted arch filling forming template and construction method thereof |
-
2020
- 2020-09-30 CN CN202011062652.XA patent/CN112081606A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464165A (en) * | 2021-06-30 | 2021-10-01 | 湖南五新模板有限公司 | Reversible inverted arch formwork and construction method thereof |
| CN113605932A (en) * | 2021-06-30 | 2021-11-05 | 湖南五新模板有限公司 | Inverted arch filling forming template and construction method thereof |
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