CN211666732U - Tunnel invert and fill concrete layering and pour and use device - Google Patents
Tunnel invert and fill concrete layering and pour and use device Download PDFInfo
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- CN211666732U CN211666732U CN201922354791.9U CN201922354791U CN211666732U CN 211666732 U CN211666732 U CN 211666732U CN 201922354791 U CN201922354791 U CN 201922354791U CN 211666732 U CN211666732 U CN 211666732U
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Abstract
A device for layered pouring of tunnel inverted arches and filled concrete relates to the field of tunnel inverted arches and filled concrete construction devices. The inverted arch formwork is designed for mainly solving the problems that the existing inverted arch formwork easily causes floating formwork in the inverted arch structure concrete pouring process and the lower formwork needs to be dismantled before pouring filling structure concrete and then can be carried out. It comprises a supporting truss; the upper section fixed template is connected with the support truss, and the lower section movable template is connected with the upper section fixed template through a pin shaft; the upper end of the supporting screw rod is connected to the supporting truss through a pin shaft, and the lower end of the supporting screw rod is connected to the lower movable template through a pin shaft; the lower movable template is provided with a skylight for concrete observation and vibration; the fixed pulley of the chain block is arranged on the supporting truss, and the hook of the chain block is hung in the hanging ring of the lower movable template. The inverted arch structure concrete pouring method has the advantages that the formwork can be prevented from floating upwards in the inverted arch structure concrete pouring process, and the filling structure concrete can be poured quickly.
Description
The technical field is as follows:
the utility model belongs to the technical field of the tunnel invert and fill concrete construction equipment and specifically relates to a tunnel invert and fill concrete layering and pour device of usefulness.
Background art:
in the construction process of the inverted arch and the filling concrete of the tunnel, the inverted arch and the filling are two different structures, so that the inverted arch and the filling are usually designed into concrete with different labels, the concrete must be poured twice in the construction process, and the filling structure concrete can be constructed after the form removal of the concrete construction of the inverted arch structure. The existing inverted arch formwork is easy to cause floating formwork in the inverted arch structure concrete pouring process, the radian of the top surface of the inverted arch and the structure size are not easy to guarantee, and the lower formwork needs to be dismantled before pouring filling structure concrete and then can be carried out, so that the construction time is greatly increased.
The invention content is as follows:
the utility model aims to solve the technical problem that a tunnel invert and fill concrete layering and pour and use device is provided, can make the invert pour with the concrete rapid layering of filling two kinds of not isostructures, shorten the engineering time.
The above object is achieved by: the supporting truss is characterized by comprising a supporting truss, wherein two ends of the supporting truss are respectively supported on the top surface of poured inverted arch filling concrete and the top surface of rock at the end of an unearthed inverted arch;
the upper section fixed template is fixedly connected with the support truss, and the front end of the lower section movable template is connected with the rear end of the upper section fixed template through a pin shaft; the lower movable template and the lower end of the support truss are provided with a support screw rod, the upper end of the support screw rod is connected to the support truss through a pin shaft, and the lower end of the support screw rod is connected to the lower movable template through a pin shaft; the lower movable template is provided with a skylight for concrete observation and vibration;
the fixed pulley of the chain block is arranged on the supporting truss, and the hanging hook at the lower end of the chain block is hung in the hanging ring at the rear end of the lower movable template.
The utility model has the advantages that: this device prevents the template come-up in inverted arch structure concrete placement process through the self-weight of braced truss to template backpressure, accomplishes the back at inverted arch structure concrete placement, demolishs the connecting pin axle of lead screw and braced truss, and through dragging chain block jack-up lower section movable mould board, can pour filling structure concrete fast, has shortened the engineering time.
Description of the drawings:
fig. 1 is a schematic cross-sectional structure diagram of the inverted arch structure concrete of the present invention when poured;
FIG. 2 is a schematic cross-sectional structure diagram of the utility model when pouring the filling structure concrete;
FIG. 3 is a structural diagram of the vertical section of the present invention;
fig. 4 is a schematic top view of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to FIGS. 1-4;
the supporting truss comprises a supporting truss 1, wherein two ends of the supporting truss are respectively supported on the top surface of poured inverted arch filling concrete and the top surface of rock at the non-excavated inverted arch end;
the upper section fixed template 2 is fixedly connected with the support truss, and the front end of the lower section movable template 3 is connected with the rear end of the upper section fixed template through a pin shaft; the lower movable template and the lower end of the support truss are provided with a support screw rod 4, the upper end of the support screw rod is connected to the support truss through a pin shaft, and the lower end of the support screw rod is connected to the lower movable template through a pin shaft; the lower movable template is provided with a skylight 5 for concrete observation and vibration;
the fixed pulley of the chain block 6 is arranged on the supporting truss, and the hook 7 at the lower end of the chain block is hung in the hanging ring 8 at the rear end of the lower movable template.
Claims (1)
1. The utility model provides a tunnel invert and fill concrete layering and pour and use device which characterized by: the device comprises a supporting truss (1), wherein two ends of the supporting truss are respectively supported on the top surface of poured inverted arch filling concrete and the top surface of rock at the non-excavated inverted arch end;
the upper section fixed template (2) is fixedly connected with the support truss, and the front end of the lower section movable template (3) is connected with the rear end of the upper section fixed template through a pin shaft; the lower movable template and the lower end of the support truss are provided with a support screw rod (4), the upper end of the support screw rod is connected to the support truss through a pin shaft, and the lower end of the support screw rod is connected to the lower movable template through a pin shaft; the lower movable template is provided with a skylight (5) for observing and vibrating concrete;
the fixed pulley of the chain block (6) is arranged on the supporting truss, and a hook (7) at the lower end of the chain block is hung in a hanging ring (8) at the rear end of the lower movable template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922354791.9U CN211666732U (en) | 2019-12-25 | 2019-12-25 | Tunnel invert and fill concrete layering and pour and use device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922354791.9U CN211666732U (en) | 2019-12-25 | 2019-12-25 | Tunnel invert and fill concrete layering and pour and use device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211666732U true CN211666732U (en) | 2020-10-13 |
Family
ID=72734576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922354791.9U Active CN211666732U (en) | 2019-12-25 | 2019-12-25 | Tunnel invert and fill concrete layering and pour and use device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211666732U (en) |
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2019
- 2019-12-25 CN CN201922354791.9U patent/CN211666732U/en active Active
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