CN112228109A - Inverted arch formwork and construction method thereof - Google Patents
Inverted arch formwork and construction method thereof Download PDFInfo
- Publication number
- CN112228109A CN112228109A CN202011062683.5A CN202011062683A CN112228109A CN 112228109 A CN112228109 A CN 112228109A CN 202011062683 A CN202011062683 A CN 202011062683A CN 112228109 A CN112228109 A CN 112228109A
- Authority
- CN
- China
- Prior art keywords
- template
- inverted arch
- turnover
- longitudinal rail
- formwork
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 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
Abstract
The invention discloses an inverted arch template, which comprises a middle template and side templates positioned at two sides of the middle template, wherein the bottoms of the side templates are hinged with an overturning template in butt joint with the middle template, an overturning mechanism for overturning the overturning template is arranged between the side templates and the overturning template, a longitudinal rail arranged along the depth direction of an inverted arch is arranged on the overturning template, 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 inverted arch template, which comprises the following steps: s1: fixing a side template; s2: turning the turning template downwards; s3: installing an intermediate template; s4: adjusting the position of the middle template; s5: pouring and moving an intermediate template; s6: and (6) smearing. The inverted arch formwork 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 an 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 an inverted arch template and a construction method thereof, wherein the inverted arch template is convenient to construct, can reduce the construction cost and can improve the construction convenience and the construction efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an inverted arch template, includes middle template and is located the side form board of middle template both sides, the bottom of side form board articulates has the upset template with the butt joint of middle template, be equipped with the tilting mechanism that is used for upset template between side form board and the upset template, be equipped with the vertical track of arranging along the inverted arch depth direction on the upset template, middle template can be followed vertical track reciprocating motion ground and slided and locate on the vertical track.
As a further improvement of the above technical solution:
the turnover mechanism is a telescopic piece, one end of the telescopic piece is hinged to the side formwork, and the other end of the telescopic piece is hinged to the turnover formwork.
The side form plate is provided with a support frame, and the telescopic piece is hinged on the support frame.
The front end and the rear end of each side template are connected with a jacking frame, and a jacking device is arranged at the bottom of each jacking frame.
And a detachable reinforcing rod is arranged between the side template and the turnover template or between the side template and the longitudinal rail.
And the middle template is provided with a guide roller matched with the longitudinal rail.
The side forms and the inverted form are longer than the intermediate form.
And a sealing gasket is arranged at the contact position of the middle template and the turnover template.
The sealing gasket is fixed on the middle template or the turnover template through bolts.
The construction method of the inverted arch formwork comprises the following steps:
s1: fixing a side template: fixing two side templates on two sides of the tunnel respectively;
s2: turning the turning template downwards: the turnover template is turned downwards to a position to be poured through a turnover mechanism;
s3: installing a middle template: the middle template is arranged on the longitudinal rail on the turnover template in a sliding way;
s4: adjusting the position of the middle template: sliding the middle template to a position to be poured along the longitudinal rail;
s5: 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;
s6: smearing: sliding the intermediate template outside the pouring forming area to finish the plastering of the pouring forming area of the intermediate template; the turnover template is turned upwards through the turnover mechanism, and plastering of the pouring forming area of the turnover template is finished.
Compared with the prior art, the invention has the advantages that:
the inverted arch formwork comprises two side formworks and an intermediate formwork located between the two side formworks, wherein the side formworks are butted with the intermediate formwork through the inverted formwork, the inverted formwork is provided with the longitudinal rails, two sides of the intermediate formwork are slidably arranged on the longitudinal rails on the two inverted formworks, so that the intermediate formwork can reciprocate along the longitudinal rails, when concrete on the lower layer of the inverted arch is poured, the intermediate formwork 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 formwork moves again to flatten and form the accumulated concrete, meanwhile, the concrete can be poured below the formworks on the two sides, the construction is very convenient and rapid, the inverted formwork can upwards turn to leave the space, the concrete below the inverted formwork is supported to be flattened, and the construction quality of the place is improved. Compared with the full-width inverted arch movement, only the middle template is moved, the construction quality of the inverted arch is guaranteed, and meanwhile, the inverted arch construction method is easier to implement and lower in cost; and, the upset template can upturn, in time provides floating operating space for the corner of invert, has improved construction convenience and efficiency of construction.
According to the construction method of the 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; the turnover formwork is turned upwards through the turnover mechanism, a floating operation space is timely provided for the corner of the inverted arch, and construction convenience and construction efficiency are improved.
Drawings
Fig. 1 is a schematic front view of an inverted arch form according to an embodiment of the present 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 schematic front view of the inverted arch form of the present invention after the intermediate form slides away.
Fig. 5 is a front view schematically showing the inverted arch form of the present invention when it is turned upside down.
Fig. 6 is a schematic front view of another embodiment of an inverted arch form according to the present invention.
Fig. 7 is a schematic side view of another embodiment of an inverted arch form of the invention.
The reference numerals in the figures denote:
1. an intermediate template; 2. a sideform; 21. turning over the template; 22. a support frame; 23. a jacking frame; 24. a jacking device; 3. a longitudinal rail; 4. a turnover mechanism; 5. a guide roller; 6. a tunnel; 7. an inverted arch; 8. a reinforcing bar; 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 5 show an embodiment of an inverted arch form according to the present invention, the inverted arch form includes a middle form 1 and side forms 2 located at two sides of the middle form 1, the bottom of the side forms 2 is hinged with an inverted form 21 butted with the middle form 1, an inverted mechanism 4 for inverting the inverted form 21 is provided between the side forms 2 and the inverted form 21, the inverted form 21 is provided with a longitudinal rail 3 arranged along the depth direction of an inverted arch 7, and the middle form 1 can be slidingly provided 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 positioned between the two side formworks 2, wherein the side formworks 2 are butted with the intermediate formwork 1 through an inverted formwork 21, the side formworks 2, the inverted formwork 21 and the intermediate formwork 1 form a contour surface required by tunnel construction, a longitudinal rail 3 is arranged on the inverted formwork 21, two sides of the intermediate formwork 1 are slidably arranged on the longitudinal rails 3 on the two inverted formworks 21, so that the intermediate formwork 1 can reciprocate along the longitudinal rail 3, when the lower-layer concrete of an inverted arch 7 is poured, the intermediate formwork 1 can move to make room, the construction is more convenient, the concrete can be vibrated and compacted in time, the construction quality is improved, after the intermediate-layer concrete is poured, the intermediate formwork 1 moves again to flatten and form the accumulated concrete, meanwhile, the concrete can be poured below the formworks 2 at two sides, the construction is very convenient and fast, the inverted formwork 21 can make room upwards, the concrete below is supported and leveled, and the construction quality of the position is improved. Compared with the full-width inverted arch movement, only the middle template 1 is moved, the construction quality of the inverted arch 7 is ensured, and meanwhile, the implementation is easier and the cost is lower; moreover, the turning template 21 can be turned upwards, so that a floating operation space is provided for the corner of the inverted arch 7 in time, and the construction convenience and the construction efficiency are improved.
In this embodiment, the turnover mechanism 4 is a telescopic member, one end of the telescopic member is hinged to the side form 2, and the other end of the telescopic member is hinged to the turnover form 21. The telescopic piece can be a telescopic oil cylinder, and the turnover of the turnover template 21 is realized through the telescopic of the telescopic piece.
In this embodiment, as shown in fig. 1, fig. 2, fig. 4, and fig. 5, a bracket 22 is arranged on the sideform 2, and the telescopic member is hinged to the bracket 22, so that the sideform 2 has a more stable structure.
In this embodiment, as shown in figures 1, 2, 4 and 5, removable reinforcing rods 8 are provided between the sideforms 2 and the roll-over forms 21 or the longitudinal rails 3. Specifically, the two ends of the reinforcing rod 8 are respectively mounted on the side formwork 2 and the turnover formwork 21 through pin keys, or are respectively mounted on the side formwork 2 and the longitudinal rail 3 through pin keys, so that the supporting capability of the turnover formwork 21 in the formwork erecting process is enhanced.
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, the sideforms 2 and the inverted form 21 are longer than the intermediate form 1. Specifically, the length of the side forms 2 and the convertible form 21 in the longitudinal direction of the tunnel 6 is longer than that of the intermediate form 1 by at least one time, so that the intermediate form 1 can be slidably constructed along the longitudinal rails 3 to form the inverted arch 7.
In this embodiment, as shown in fig. 3, a gasket 9 is provided at a contact portion between the intermediate form 1 and the inverted form 21.
In this embodiment, the gasket 9 is fixed to the intermediate form 1 or the flip form 21 by bolts. The gap between the turnover formwork 21 and the middle formwork 1 is filled through the sealing gasket 9, so that 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 fixed to the flip plate 21 by bolts.
Fig. 6 and 7 show another embodiment of the present invention, and the structure of this embodiment is substantially the same as that of the above embodiment except that: the front end and the rear end of the two side templates 2 are both connected with a jacking frame 23, and the bottom of the jacking frame 23 is provided with a jacking device 24. The two side templates 2 are connected into an integral structure through the jacking frame 23, and can ascend together under the jacking action of the jacking device 24 so as to realize the separation of the inverted arch template and the inverted arch 7. Specifically, the jacking frame 23 is connected to the support frame 22 on the side formwork 2, and the jacking device 24 can be a jacking oil cylinder or the like.
Fig. 1, 4 and 5 show an embodiment of a method for constructing an inverted arch form according to the present invention, which includes the steps of:
s1: fixing the side template 2: fixing two side templates 2 on two sides of a tunnel 6 respectively;
s2: the turning template 21 is turned downwards: the turnover template 21 is turned downwards to the position to be poured through the turnover mechanism 4;
s3: installing an intermediate template 1: the middle template 1 is arranged on the longitudinal rail 3 of the turnover template 21 in a sliding way;
s4: adjusting the position of the middle template 1: sliding the middle template 1 to a position to be poured along the longitudinal rail 3;
s5: 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, an inverted arch 7 below the middle formwork 1 is formed, and the side formwork 2 is formed and poured;
s6: smearing: as shown in fig. 4, the intermediate formwork 1 is slid to the outside of the pouring forming area (the intermediate formwork 1 slides away), and the plastering of the pouring forming area of the intermediate formwork 1 is completed; as shown in fig. 5, the turnover formwork 21 is turned up by the turnover mechanism 4, and the plastering of the pouring area of the turnover formwork 21 is completed.
According to the construction method of the 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; the turnover template 21 is turned upwards through the turnover mechanism 4, so that a floating operation space is provided for the corner of the inverted arch 7 in time, and 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 (10)
1. An inverted arch template, which is characterized in that: including middle template (1) and side form board (2) that are located middle template (1) both sides, the bottom of side form board (2) articulates has upset template (21) with middle template (1) butt joint, be equipped with between side form board (2) and upset template (21) tilting mechanism (4) that are used for upset template (21), be equipped with on upset template (21) along longitudinal rail (3) that inverted arch (7) depth direction was arranged, middle template (1) can be located on longitudinal rail (3) along longitudinal rail (3) reciprocating motion ground cunning.
2. The inverted arch template of claim 1, wherein: the turnover mechanism (4) is a telescopic piece, one end of the telescopic piece is hinged on the side template (2), and the other end of the telescopic piece is hinged on the turnover template (21).
3. The inverted arch template of claim 2, wherein: a support frame (22) is arranged on the side mold plate (2), and the telescopic piece is hinged on the support frame (22).
4. The inverted arch template of claim 1, wherein: the front end and the rear end of each side template (2) are connected with a jacking frame (23), and a jacking device (24) is arranged at the bottom of each jacking frame (23).
5. The inverted arch template of claim 1, wherein: and a detachable reinforcing rod (8) is arranged between the side template (2) and the turnover template (21) or the longitudinal rail (3).
6. The inverted arch template of claim 1, wherein: and the middle template (1) is provided with a guide roller (5) matched with the longitudinal rail (3).
7. The inverted arch template of claim 1, wherein: the side templates (2) and the turnover template (21) are longer than the middle template (1).
8. The inverted arch template of claim 1, wherein: and a sealing gasket (9) is arranged at the contact position of the middle template (1) and the turnover template (21).
9. The inverted arch template of claim 8, wherein: the sealing gasket (9) is fixed on the middle template (1) or the turnover template (21) through bolts.
10. A construction method of the inverted arch form of any one of claims 1 to 9, 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 overturning template (21) is overturned downwards: the turnover template (21) is turned downwards to a position to be poured through the turnover mechanism (4);
s3: the middle template (1) is arranged: the middle template (1) is arranged on the longitudinal rail (3) on the turnover template (21) in a sliding way;
s4: adjusting the position of the middle template (1): sliding the middle template (1) to a position to be poured along the longitudinal rail (3);
s5: 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), an inverted arch (7) below the middle formwork (1) is molded, and the side formwork (2) is molded and poured;
s6: smearing: sliding the middle template (1) to the outside of the pouring forming area to finish the plastering of the pouring forming area of the middle template (1); the turnover template (21) is turned upwards through the turnover mechanism (4), and the plastering of the pouring forming area of the turnover template (21) is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062683.5A CN112228109A (en) | 2020-09-30 | 2020-09-30 | Inverted arch formwork and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062683.5A CN112228109A (en) | 2020-09-30 | 2020-09-30 | Inverted arch formwork and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112228109A true CN112228109A (en) | 2021-01-15 |
Family
ID=74121129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011062683.5A Pending CN112228109A (en) | 2020-09-30 | 2020-09-30 | Inverted arch formwork and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112228109A (en) |
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 CN202011062683.5A patent/CN112228109A/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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112065454B (en) | Inverted arch formwork and construction method thereof | |
| CN112228109A (en) | Inverted arch formwork and construction method thereof | |
| CN109808054A (en) | A kind of straight line PC track girder precast construction method | |
| CN108755434B (en) | Control system of self-propelled hydraulic rail box girder external mold trolley | |
| CN112177633B (en) | Formwork for inverted arch construction and construction method thereof | |
| CN112081606A (en) | Slidable inverted arch formwork and construction method thereof | |
| WO2021031354A1 (en) | Method for movable formwork passing through hole, and device for movable formwork passing through hole | |
| CN204457807U (en) | A kind of tunnel ditch cable channel hydraulic formwork trolley | |
| CN212563266U (en) | Inverted arch template | |
| CN212454461U (en) | Slidable inverted arch template | |
| CN216305946U (en) | Inverted arch template | |
| CN208748494U (en) | A kind of alignment device of highway roadside stone laydown machine | |
| CN216043753U (en) | Liftable inverted arch template | |
| CN217327341U (en) | Self-propelled long-span variable cross-section hydraulic formwork trolley | |
| CN216342182U (en) | Inverted arch filling forming template | |
| CN215907866U (en) | Inverted arch template capable of longitudinally moving | |
| CN112228108B (en) | Slidable inverted arch template and construction method thereof | |
| CN114734167A (en) | Welding device for steel reinforcement framework and construction method thereof | |
| CN113605932A (en) | Inverted arch filling forming template and construction method thereof | |
| CN215486058U (en) | Inverted arch template capable of moving transversely | |
| CN216043754U (en) | Slidable inverted arch filling forming template | |
| CN220539148U (en) | Concrete cambered surface reentrant corner construction equipment | |
| CN215803181U (en) | Upward-returning formwork self-stabilization reinforcing device | |
| CN212154786U (en) | Inverted arch template capable of being moved locally | |
| CN212154789U (en) | But trestle of invert template and area invert template of local removal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |