CN111764935B - Inverted arch template - Google Patents
Inverted arch template Download PDFInfo
- Publication number
- CN111764935B CN111764935B CN202010655424.7A CN202010655424A CN111764935B CN 111764935 B CN111764935 B CN 111764935B CN 202010655424 A CN202010655424 A CN 202010655424A CN 111764935 B CN111764935 B CN 111764935B
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- arc
- template
- inverted arch
- framework
- skeleton
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- 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
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- 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
Abstract
The invention provides an inverted arch template, which comprises: a beam frame; the frameworks are arranged on the beam frame and comprise webs and wing plates extending from two sides of the webs; the arc template is detachably connected to wing plates of two adjacent frameworks, and the convex surface of the arc template faces the bottom of the tunnel. According to the invention, constructors can manually disassemble the arc-shaped template and then manually carry the arc-shaped template, the operation is convenient, the operation of an excavator is not required to be additionally arranged, and the construction progress of the tunnel is accelerated.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to an inverted arch template.
Background
At present, the inverted arch arc-shaped formwork that uses in the tunnel construction process generally is the steel formwork, including panel and floor, panel thickness reaches 8mm, rib plate thickness reaches 3mm, therefore, every steel formwork is very heavy, the weight of per square meter reaches 127kg, use the common lengthwise 6m in the actual work progress, width 2.5m as an example, the total weight of whole inverted arch arc-shaped formwork reaches 1.9 tons, operating personnel can't manually accomplish the dismouting of inverted arch arc-shaped formwork, need use excavator cooperation operation, often need several hours to accomplish, and the tunnel inner space is limited, the dismouting that utilizes excavator operation inverted arch arc-shaped formwork occupies that the space is big, dangerous high, the construction operating mode in the tunnel has seriously worsened, lead to constructor to have the conflict to the use of inverted arch arc-shaped formwork, influence the construction psychological progress of tunnel.
Disclosure of Invention
The invention mainly aims to provide an inverted arch template, and aims to solve the problem that in the prior art, when the inverted arch template is disassembled and assembled, the inverted arch template can only directly rotate around a beam frame by using an integral inverted arch template, and manual assembly and disassembly are inconvenient.
In order to achieve the above object, the present invention provides an inverted arch form, including:
a beam frame;
the frameworks are arranged on the beam frame and comprise webs and wing plates extending from two sides of the webs;
the arc template, the connection can be dismantled on the pterygoid lamina of two adjacent skeletons to the arc template, the convex surface of arc template is towards the bottom in tunnel.
Optionally, a flange is arranged on the arc-shaped template, a mounting hole is formed in the flange, a connecting hole is formed in the web, and a pin shaft penetrates through the connecting hole and the mounting hole to detachably connect the arc-shaped template to the framework.
Optionally, the arc-shaped formwork further comprises reinforcing ribs, and the reinforcing ribs are distributed on the plate surface of the arc-shaped formwork.
Optionally, a plurality of reinforcing ribs are arranged on the arc-shaped formwork, and the plurality of reinforcing ribs are arranged on the plate surface of the arc-shaped formwork in a staggered manner.
Optionally, the part of the framework extending out of the beam frame is arc-shaped.
Optionally, a rotating support is arranged on the beam frame, and the framework is rotatably connected to the rotating support through a pin shaft.
Optionally, the beam frame includes a first bearing beam and a second bearing beam, a connecting rod is connected between the first bearing beam and the second bearing beam, and the rotating support is disposed on the first bearing beam.
Optionally, the inverted arch arc-shaped formwork further comprises a limiting support, the limiting support is arranged on the second bearing beam, and the limiting support is located on a rotation path of the framework.
According to the technical scheme, the frameworks are arranged on the beam frame, the frameworks comprise the web plate and the wing plates extending from two sides of the web plate, the arc-shaped template is detachably connected to the wing plates of two adjacent frameworks, the convex surface of the arc-shaped template faces the bottom of the tunnel, and the detachable installation mode of the arc-shaped template and the frameworks enables constructors to manually detach the arc-shaped template and then carry the template manually, so that the operation is convenient, the operation of an excavator is not required to be additionally arranged, and the construction progress of the tunnel is accelerated.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an inverted arch form of the present invention;
FIG. 2 is a schematic view of an assembly structure of a framework and a limiting support in the inverted arch template;
FIG. 3 is an enlarged view of a portion of FIG. 2 at B;
FIG. 4 is a cross-sectional view of a framework and an arcuate form at an intermediate position along A-A of FIG. 1.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions relating to "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1, to achieve the above object, the present invention provides an inverted arch form, including: a beam frame 1; a plurality of frameworks 2, wherein the frameworks 2 are arranged on the beam frame 1, and the frameworks 2 comprise a web plate 21 and wing plates 22 extending from two sides of the web plate 21; arc template 3, arc template 3 can dismantle the connection on the pterygoid lamina 21 of two adjacent skeletons, and on the rotation initiating position of skeleton 2, arc template 3's convex surface is towards the bottom in tunnel.
The beam frames 1 are mainly used for mounting the framework 2 and bear the weight from the framework 2, the arrangement direction of the beam frames 1 is determined according to construction conditions, and in the embodiment, the beam frames 1 extend towards the lengthwise direction of the tunnel. Skeleton 2 and roof beam structure 1 are rotatable coupling, have rotation initiating position and rotation on skeleton 2's the rotation route and end the position (being in rotation initiating position in fig. 1, be the rotation and end the position in fig. 2), the rotation initiating position is the operating position of inverted arch template, the rotation ends the position after the position is withdrawed from operating condition for inverted arch template, the state of withdrawing from operating condition that this indicates is the state that inverted arch template is idle not used or is dismantled with it this moment, owing to still need carry out subsequent inverted arch and fill and pour the operation, often need remove arc template 3 from operating position, and install arc template 3 and can follow skeleton 2 and rotate together on skeleton 2, thereby constructor only manually promotes skeleton 2 and rotates just can remove skeleton 2 and arc template 3 from rotating initiating position. In actual construction, the arc-shaped formwork 3 and the framework 2 in the tunnel can be completely removed from the working position only in half an hour by the rotatable structure, and compared with the prior art that the operation of adopting the excavator takes several hours, a large amount of time can be saved.
The position that is used for installing arc template 3 on skeleton 2 is the arc, and in concrete implementation, the skeleton includes web 21 and pterygoid lamina 22, and web 21 and pterygoid lamina 22 are the arc to in installation arc template 3, the one end and the roof beam structure 1 rotatable coupling of skeleton 2, the rotation of skeleton 2 drives arc template 3 and rotates. In this embodiment, a plurality of skeletons 2 are rotatably connected to the beam frame 1, and the skeletons 2 are arranged at equal intervals, so that the arc-shaped templates 3 arranged on the two adjacent skeletons 2 are consistent in size, and standardized production is facilitated.
The convex surface of arc template 3 is towards the tunnel bottom, and the concave surface is towards the top in tunnel, and of course, this kind of orientation also can make certain angular adjustment according to actual construction conditions, for example the concave surface inclines certain angle to the side wall direction in tunnel etc.. The connection of the arc-shaped template 3 and the framework 2 can be fixed connection (such as welding) or detachable connection (such as pin connection, threaded connection and steel wire binding). When being connected as fixed connection when arc template 3 and skeleton 2, skeleton 2 drives arc template 3 and rotates together, when arc template 3 is connected for dismantling with skeleton 2, constructor can select to dismantle arc template 3 from skeleton 2 earlier and rotate skeleton 2 again to make the rotation of skeleton 2 easier.
The arc-shaped templates 3 can be made of plastic steel, the plastic steel is light, and the arc-shaped templates are used for installation and carrying by constructors, so that the operation of the excavator is avoided. In one embodiment, in order to further improve the strength of the plastic steel template, a plurality of reinforcing ribs can be additionally arranged on a trigger of the plastic steel template, and the plurality of reinforcing ribs can be arranged in parallel or perpendicular to each other.
In a further embodiment, the beam frame 1 is provided with a rotating support 15, and the framework 2 is rotatably connected to the rotating support 15.
Be equipped with on roof beam structure 1 and rotate support 15, the quantity of rotating support 15 is unanimous with the quantity of skeleton 2, promptly, only sets up a skeleton 2 on each rotates support 15, and skeleton 2 is through the round pin hub connection on rotating support 15, and skeleton 2 rotates around this round pin axle.
In a specific implementation, a first through hole is opened at one end of the framework 2 connected to the rotating support 15, and a rotating shaft (not labeled in the figure) is arranged in the first through hole to form a rotating connection between the framework 2 and the rotating support 15.
The framework 2 is provided with a first through hole (not shown) for the shaft to pass through, and two ends of the shaft protruding out of the first through hole are connected with the support to form the rotary connection between the framework 2 and the rotary support 15.
The beam frame 1 comprises a first bearing beam 11 and a second bearing beam 12, a connecting rod 13 is connected between the first bearing beam 11 and the second bearing beam 12, and the rotating support 15 is arranged on the first bearing beam 11.
The beam frame 1 specifically comprises a first bearing beam 11 and a second bearing beam 12 which are used for bearing the weight of the framework 2, the first bearing beam 11 is connected with the second bearing beam 12 through a connecting rod 13, in order to increase the connection reliability and ensure the strength of the beam frame 1, the connecting rods 13 are multiple and are arranged between the first bearing beam 11 and the second bearing beam 12 at intervals. The swivel support 15 can be located on the first girder 11 or on the connecting rod 13.
As shown in fig. 2, the inverted arch formwork further includes a limit support 14, the limit support 14 is disposed on the second bearing beam 12, and the limit support 14 is located on a rotation path of the framework 2.
In an embodiment, the arc formwork 3 further includes a limit support 14, the limit support 14 is used for fixing the framework 2, the limit support 14 is located on a rotation path of the framework 2, and when the framework 2 rotates to a position of the limit support 14, the limit support 14 can be limited in the limit support 14 through a pin, and of course, the limit support 14 can also be directly clamped in the limit support 14. Since the limit seat 14 is mounted on the second bearing beam 12, when the framework 2 rotates to the position of the limit seat 14, the limit seat 14 cannot continue to rotate in the original direction, and therefore, the limit seat 14 is located at the rotation end position of the framework 2.
As shown in fig. 3, the specific structure of the limiting support 14 includes two brackets 141 (not shown), the two brackets 141 are arranged at intervals to form a limiting groove (not shown), the two brackets 141 are fixed on the second bearing beam 12, limiting holes 142 are formed in the two brackets 141, and the framework 2 is fixed in the limiting holes 142.
A second through hole (not labeled in the figure) can be formed in the framework 2, and at this time, the pin shaft is inserted into the limiting hole 142 and the second through hole of the two brackets 141, so as to form a fixed connection to the framework 2. The second through hole may not be formed in the framework 2, the pin shaft can be inserted into the limiting holes 142 of the two supports at this time, and the framework 2 is blocked in the limiting groove by the pin shaft and cannot be separated from the limiting groove. In actual construction, the beam frame 1 is installed close to the side wall of the tunnel, and after the framework 2 is fixed to the limiting support 14, the framework 2 is close to the side wall and extends from the bottom of the tunnel to the top of the tunnel instead of extending along the bottom of the tunnel, so that the working space of a constructor at the bottom of the tunnel is not occupied.
As shown in fig. 4, the frameworks 2 have a web 21 and wing plates 22 disposed at two sides of the web 21, and the arc-shaped formworks 3 are mounted on the wing plates 21 of two adjacent frameworks 2.
The framework 2 comprises a web plate 21 and wing plates 22 on two sides of the web plate 21, the wing plates 22 are used for installing the arc-shaped templates 3, the arc-shaped templates 3 are installed on the wing plates 21 of the two adjacent frameworks 2, the arc-shaped templates 3 and the wing plates 21 can be installed and fixed through welding or fixed through pin shafts 4 or fixed through bolts, for example, when connecting holes are formed in the web plate 21, installing holes can be correspondingly formed in the arc-shaped templates 3, the pin shafts 4 penetrate through the installing holes and the connecting holes to form detachable connection, under the connection mode, the edges of the arc-shaped templates 3 are provided with flanges, and the installing holes are formed in the flanges to facilitate the penetration of the pin shafts 4; this kind of arc template 3 and 2 detachable mounting means of skeleton make constructor can manually dismantle arc template 3, and arc template 3 divide into the polylith again, constructor or manual transport, convenient operation need not arrange in addition and dig the quick-witted operation for the construction progress in tunnel.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. An inverted arch form, comprising:
a beam frame;
the frameworks are arranged on the beam frame and comprise webs and wing plates extending from two sides of the webs;
each arc-shaped template is detachably connected to wing plates of two adjacent frameworks;
the beam frame is provided with a rotating support, and the framework is rotatably connected to the rotating support through a pin shaft;
the beam frame comprises a first bearing beam and a second bearing beam, a connecting rod is connected between the first bearing beam and the second bearing beam, and the rotating support is arranged on the first bearing beam;
the inverted arch template further comprises a limiting support, the limiting support is arranged on the second bearing beam and is positioned on the rotating path of the framework; when the skeleton rotates to the position of the limiting support, the limiting support limits the skeleton in the limiting support through the pin shaft so as to fix the skeleton.
2. The inverted arch formwork of claim 1, wherein the arc formwork is provided with a flange, the flange is provided with a mounting hole, the web is provided with a connecting hole, and a pin shaft is arranged in the connecting hole and the mounting hole in a penetrating manner so as to detachably connect the arc formwork to the framework.
3. The inverted arch form of claim 1, wherein the arcuate form further comprises reinforcing ribs distributed on the face of the arcuate form.
4. The inverted arch form of claim 3, wherein the plurality of reinforcement ribs are provided on the arcuate form, and the plurality of reinforcement ribs are staggered on the face of the arcuate form.
5. The inverted arch template of claim 1, wherein the portion of the framework extending out of the beam is arcuate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010655424.7A CN111764935B (en) | 2020-07-08 | 2020-07-08 | Inverted arch template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010655424.7A CN111764935B (en) | 2020-07-08 | 2020-07-08 | Inverted arch template |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111764935A CN111764935A (en) | 2020-10-13 |
| CN111764935B true CN111764935B (en) | 2022-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010655424.7A Active CN111764935B (en) | 2020-07-08 | 2020-07-08 | Inverted arch template |
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| CN (1) | CN111764935B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0285500A (en) * | 1988-09-19 | 1990-03-26 | Kumagai Gumi Co Ltd | Mould device for lower semiarch part of tunnel |
| CN202659247U (en) * | 2012-06-20 | 2013-01-09 | 中铁十七局集团第四工程有限公司 | Back templates and combined steel die for tunnel inverted arch construction |
| JP2013083075A (en) * | 2011-10-07 | 2013-05-09 | C I Kasei Co Ltd | Tunnel invert structure and method for manufacturing invert |
| CN104329101A (en) * | 2014-11-05 | 2015-02-04 | 甘肃路桥第四公路工程有限责任公司 | Device for accurately controlling curvature and thickness of small-radius variable-curvature segment between tunnel side wall and inverted arch |
| CN206158763U (en) * | 2016-10-28 | 2017-05-10 | 中铁十四局集团第二工程有限公司 | Install convenient tunnel invert end template |
| CN110529149A (en) * | 2019-08-14 | 2019-12-03 | 保利长大工程有限公司 | Inverted arch placement layer by layer combined steel formwork |
| CN209892231U (en) * | 2019-04-30 | 2020-01-03 | 四川蓝海智能装备制造有限公司 | Full-width template for inverted arch trestle |
| CN210031723U (en) * | 2019-04-16 | 2020-02-07 | 中国葛洲坝集团第五工程有限公司 | Diversion tunnel inverted arch template anti-floating device |
-
2020
- 2020-07-08 CN CN202010655424.7A patent/CN111764935B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0285500A (en) * | 1988-09-19 | 1990-03-26 | Kumagai Gumi Co Ltd | Mould device for lower semiarch part of tunnel |
| JP2013083075A (en) * | 2011-10-07 | 2013-05-09 | C I Kasei Co Ltd | Tunnel invert structure and method for manufacturing invert |
| CN202659247U (en) * | 2012-06-20 | 2013-01-09 | 中铁十七局集团第四工程有限公司 | Back templates and combined steel die for tunnel inverted arch construction |
| CN104329101A (en) * | 2014-11-05 | 2015-02-04 | 甘肃路桥第四公路工程有限责任公司 | Device for accurately controlling curvature and thickness of small-radius variable-curvature segment between tunnel side wall and inverted arch |
| CN206158763U (en) * | 2016-10-28 | 2017-05-10 | 中铁十四局集团第二工程有限公司 | Install convenient tunnel invert end template |
| CN210031723U (en) * | 2019-04-16 | 2020-02-07 | 中国葛洲坝集团第五工程有限公司 | Diversion tunnel inverted arch template anti-floating device |
| CN209892231U (en) * | 2019-04-30 | 2020-01-03 | 四川蓝海智能装备制造有限公司 | Full-width template for inverted arch trestle |
| CN110529149A (en) * | 2019-08-14 | 2019-12-03 | 保利长大工程有限公司 | Inverted arch placement layer by layer combined steel formwork |
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| CN111764935A (en) | 2020-10-13 |
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