CN112228108A - Slidable inverted arch formwork and construction method thereof - Google Patents
Slidable inverted arch formwork and construction method thereof Download PDFInfo
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- CN112228108A CN112228108A CN202011062656.8A CN202011062656A CN112228108A CN 112228108 A CN112228108 A CN 112228108A CN 202011062656 A CN202011062656 A CN 202011062656A CN 112228108 A CN112228108 A CN 112228108A
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- 238000010276 construction Methods 0.000 title claims abstract description 56
- 238000009415 formwork Methods 0.000 title claims description 39
- 238000004381 surface treatment Methods 0.000 claims abstract description 4
- 239000000725 suspension Substances 0.000 claims description 9
- 238000007667 floating Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 230000000670 limiting effect Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 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
- 210000001503 joint Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- 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
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- 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
-
- 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
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (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, side templates positioned at two sides of the middle template and a jacking frame used for jacking the middle template firstly and then jacking the side templates, wherein the jacking frame is provided with a longitudinal rail arranged along the depth direction of an inverted arch, and the middle template can be arranged on the longitudinal rail in a sliding manner along the 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: hanging the middle template; s3: adjusting the position of the middle template; s4: pouring and moving an intermediate template; s5: jacking a middle template and performing surface treatment on a middle inverted arch; s6: jacking a side template; s7: 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, is located the side form board of middle template both sides and is used for jacking earlier jacking middle template jacking frame of jacking side form board again, be equipped with the vertical track of arranging along the invert depth direction on the jacking frame, middle template can be located on the vertical track along vertical track reciprocating motion ground cunning.
As a further improvement of the above technical solution:
the side formwork is provided with a support frame, the jacking frame is arranged on the support frame in a sliding mode, and the top of the support frame is provided with a limiting portion for limiting the jacking frame to slide upwards.
The two ends of the jacking frame extend out of the two ends of the side formworks respectively, the front end and the rear end of the jacking frame are connected with connecting frames, and jacking devices are arranged at the bottoms of the connecting frames.
The sideforms are longer than the intermediate form.
And the middle template is provided with a guide roller matched with the longitudinal rail.
And suspension brackets are arranged on two sides of the middle template, and the guide rollers are arranged on the suspension brackets.
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: hanging a middle template: hanging two sides of the middle template on longitudinal rails of the jacking frames on the two side templates respectively;
s3: adjusting the position of the middle template: sliding the middle template to a position to be poured along the longitudinal rail, and then lowering the middle template to be butted with the side template through the jacking frame;
s4: pouring and moving an intermediate template: pouring concrete below the inverted arch template, sliding the middle template on the longitudinal rail, forming an inverted arch below the middle template, and forming and pouring side templates;
s5: jacking a middle template and performing surface treatment on a middle inverted arch: jacking the middle template through the jacking frame to separate the middle template from the middle inverted arch and treating the surface of the middle inverted arch;
s6: jacking a side template: the jacking frame continues to jack, so that the side template is separated from the side inverted arch;
s7: 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 the side templates are provided with a jacking frame, the jacking frame is provided with a longitudinal rail, the intermediate template can reciprocate along the longitudinal rail, when concrete on the lower layer of an inverted arch is poured, the intermediate template can move to leave a space, construction is more convenient, the concrete can be vibrated and compacted in time, construction quality is improved, after the concrete on the intermediate layer is poured, the intermediate template moves again to trowel and form the accumulated concrete, meanwhile, the concrete can be poured below the templates on two sides, construction is very convenient and rapid, compared with full-width inverted arch movement, only the intermediate template is moved, inverted arch construction quality is ensured, implementation is easier, and cost is lower; and the jacking frame can jack the middle template firstly and then jack the side templates, namely the middle template is separated from the middle inverted arch firstly, the surface of the middle inverted arch is processed, the side templates are separated from the side inverted arches, and the surface of the side inverted arches is processed, so that the solidification time of the side inverted arches is longer, and the construction quality, the construction convenience and the construction efficiency are improved.
According to the construction method of the slidable inverted arch template, the intermediate template slides along the longitudinal rail to be adjusted to the position to be poured, so that the trouble of dismounting and re-erecting the template is reduced, and the convenience and efficiency of construction are improved; and the middle template is firstly jacked by the jacking frame and then the side templates are jacked, namely, the middle template is firstly separated from the middle inverted arch, the surface of the middle inverted arch is processed, the side templates are separated from the side inverted arches, and the surface of the side inverted arches is processed, so that the solidification time of the side inverted arches is longer, 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 a side view of the inverted arch form of the invention.
Fig. 4 is a schematic top view of the slidable inverted arch form of the present 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; 11. a suspension bracket; 2. a sideform; 21. a support frame; 22. a support bar; 3. a longitudinal rail; 4. a jacking frame; 41. a connecting frame; 42. a jacking device; 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 present invention, the slidable inverted arch form includes a middle form 1, side forms 2 located at two sides of the middle form 1, and a jacking frame 4 for jacking the middle form 1 and then jacking the side forms 2, the jacking frame 4 is provided with a longitudinal rail 3 arranged along the depth direction of an inverted arch 7, and the middle form 1 can be slidably disposed on the longitudinal rail 3 along the longitudinal rail 3 in a reciprocating manner.
The inverted arch formwork comprises two side formworks 2 and an intermediate formwork 1 located between the two side formworks 2, the side formworks 2 and the intermediate formwork 1 form a contour surface required by tunnel construction, a longitudinal rail 3 is arranged on a jacking frame 4, the intermediate formwork 1 can reciprocate along the longitudinal rail 3, the side formworks 2 and the intermediate formwork 1 form a contour surface required by tunnel construction, when lower-layer concrete of an inverted arch 7 is poured, the intermediate formwork 1 can move to leave a space, construction is more convenient, the concrete can be vibrated and compacted in time, construction quality is improved, after the intermediate-layer concrete is poured, the intermediate formwork 1 moves again, the piled concrete is leveled and formed, meanwhile, the concrete can be poured below the formworks 2 on two sides, construction is very convenient and rapid, and compared with full-width inverted arch movement, only the intermediate formwork 1 is moved, the construction quality of the inverted arch 7 is ensured, and implementation is easier, The cost is lower; and the jacking frame 4 can jack the middle template 1 firstly and then jack the side templates 2, namely the middle template 1 is separated from the middle inverted arch 7 firstly, the surface of the middle inverted arch 7 is processed, the side templates 2 are separated from the side inverted arches 7, and the surface of the side inverted arches 7 is processed, so that the solidification time of the side inverted arches 7 is longer, and the construction quality, the construction convenience and the construction efficiency are improved.
In this embodiment, as shown in fig. 1, a support frame 21 is arranged on the side mold plate 2, the jacking frame 4 is slidably arranged on the support frame 21, and a limiting portion for limiting the jacking frame 4 to slide upwards is arranged at the top of the support frame 21. The side form 2 is fixed in the downside of strut 21, and the structure is more stable, and on middle template 1 one side slided and is located longitudinal rail 3 on one jacking frame 4, on the opposite side slided and is located longitudinal rail 3 on the opposite side jacking frame 4, make middle template 1 can follow longitudinal rail 3's reciprocating motion, and on jacking frame 4 slided and is located strut 21, make middle template 1 can be steadily jacked.
In this embodiment, as shown in fig. 3 and 4, two ends of the jacking frame 4 respectively extend out from two ends of the side form 2, the front ends of the two jacking frames 4 are connected with the connecting frame 41, the rear ends of the two jacking frames 4 are also connected with the connecting frame 41, and the bottom of the connecting frame 41 is provided with the jacking device 42. The two jacking frames 4 are connected into an integral square frame structure through the two connecting frames 41, so that the lifting together is realized, under the jacking action of the jacking device 42, the jacking frames 4 drive the middle template 1 to ascend, so that the middle template 1 is separated from the middle inverted arch 7, and when the jacking frames 4 continue to ascend, under the limiting action of the top limiting part of the support frame 21, the side templates 2 are separated from the side inverted arches 7.
In this embodiment, the sideforms 2 are longer than the intermediate form 1, as shown in fig. 3 and 4. Specifically, the length of the side forms 2 in the depth direction of the tunnel 6 is longer than that of the middle form 1 so that the middle form 1 can be slidably constructed along the longitudinal rails 3 to form the inverted arch 7.
In this embodiment, the intermediate form 1 is provided with guide rollers 5 that cooperate with the longitudinal rails 3. As a preferable technical scheme, for example, the 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 longitudinal rail 3 and the guide roller 5, so that the middle formwork 1 moves more stably and smoothly.
In this embodiment, as shown in fig. 1, suspension brackets 11 are provided on both sides of the middle formwork 1, and the guide rollers 5 are mounted on the suspension brackets 11. Specifically, the bottom end of the suspension bracket 11 is fixed on the middle formwork 1, and the guide rollers 5 are arranged at the top end of the suspension bracket 11, so that the arrangement of the position of the middle formwork 1 is convenient, and the middle formwork 1 is easily butted with the side formworks 2 during construction.
In this embodiment, the sideform 2 is provided with a support rod 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, a sealing gasket 9 is disposed at a contact position of the middle template 1 and the side template 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: the middle template 1 is hung: hanging two sides of the middle template 1 on longitudinal rails 3 of a jacking frame 4 on the two side templates 2 respectively;
s3: adjusting the position of the middle template 1: sliding the middle template 1 to a position to be poured along the longitudinal rail 3, and then lowering the middle template 1 to be in butt joint with the side template 2 through the jacking frame 4;
s4: pouring and moving the middle template 1: concrete is poured below the inverted arch template, the middle template 1 slides on the longitudinal rail 3, the inverted arch below the middle template 1 is molded, and the side template 2 is molded and poured;
s5: jacking the middle template 1 and performing surface treatment on the middle inverted arch 7: as shown in fig. 5, the middle formwork 1 is lifted up by the lifting frame 4, the middle formwork 1 is separated from the middle inverted arch 7, and the surface of the middle inverted arch 7 is processed;
s6: jacking the side formwork 2: the jacking frame 4 continues jacking to separate the side template 2 from the side inverted arch 7;
s7: moving integrally: as shown in fig. 6, the inverted arch formwork is integrally moved to the next construction station by the trestle trolley 8. The trestle trolley 8 can lift the side template 2 or the middle template, so that the inverted arch template 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 longitudinal rail 3 to be adjusted to the position to be poured, so that the trouble of dismounting and re-erecting the template is reduced, and the convenience and efficiency of construction are improved; and, through jacking frame 4 jacking middle template 1 earlier and jacking side form 2 again, make middle template 1 break away from with middle invert 7 earlier, handle middle invert 7 surface, make side form 2 break away from with lateral part invert 7 again, handle lateral part invert 7 surface, like this for lateral part invert 7 setting time is longer, has improved construction quality, construction convenience and efficiency of construction.
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), be located side form board (2) of middle template (1) both sides and be used for jacking frame (4) of jacking side form board (2) again in the middle of jacking earlier template (1), be equipped with on jacking frame (4) along longitudinal rail (3) that inverted arch (7) depth direction arranged, middle template (1) can be located on longitudinal rail (3) along longitudinal rail (3) reciprocating motion ground cunning.
2. A slidable inverted arch template according to claim 1, wherein: be equipped with strut (21) on side form board (2), jacking frame (4) are slided and are located on strut (21), strut (21) top has the spacing portion that restriction jacking frame (4) were slided.
3. A slidable inverted arch template according to claim 2, wherein: the two ends of the jacking frame (4) extend out of the two ends of the side templates (2) respectively, the front end and the rear end of the jacking frame (4) are connected with a connecting frame (41), and a jacking device (42) is arranged at the bottom of the connecting frame (41).
4. A slidable inverted arch template according to claim 3, wherein: the side formworks (2) are longer than the middle formwork (1).
5. A slidable inverted arch template according to claim 1, wherein: and the middle template (1) is provided with a guide roller (5) matched with the longitudinal rail (3).
6. The slidable inverted arch template of claim 5, wherein: the two sides of the middle template (1) are respectively provided with a suspension bracket (11), and the guide rollers (5) are arranged on the suspension brackets (11).
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 hung: the two sides of the middle template (1) are respectively hung on the longitudinal rails (3) of the jacking frames (4) on the two side templates (2);
s3: adjusting the position of the middle template (1): sliding the middle template (1) to a position to be poured along the longitudinal rail (3), and then lowering the middle template (1) to be butted with the side templates (2) through the jacking frame (4);
s4: pouring and moving the middle template (1): concrete is poured below the inverted arch formwork, the middle formwork (1) slides on the longitudinal rail (3), the inverted arch below the middle formwork (1) is molded, and the side formwork (2) is molded and poured;
s5: jacking of the middle template (1) and surface treatment of the middle inverted arch (7): jacking the middle template (1) through the jacking frame (4), separating the middle template (1) from the middle inverted arch (7), and treating the surface of the middle inverted arch (7);
s6: jacking the side formwork (2): the jacking frame (4) continues to jack, so that the side template (2) is separated from the side inverted arch (7);
s7: 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 |
|---|---|---|---|
| CN202011062656.8A CN112228108B (en) | 2020-09-30 | 2020-09-30 | Slidable inverted arch template and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062656.8A CN112228108B (en) | 2020-09-30 | 2020-09-30 | Slidable inverted arch template and construction method thereof |
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| CN112228108A true CN112228108A (en) | 2021-01-15 |
| CN112228108B CN112228108B (en) | 2023-05-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN210152671U (en) * | 2019-05-27 | 2020-03-17 | 湖南五新模板有限公司 | Double-deck inverted arch construction formwork in tunnel, landing stage |
| CN211342938U (en) * | 2019-12-27 | 2020-08-25 | 湖南五新模板有限公司 | Trestle type full-section inverted arch two-lining trolley equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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