CN210857129U - Prefabricated template for background step type back slope of concrete gravity dam - Google Patents
Prefabricated template for background step type back slope of concrete gravity dam Download PDFInfo
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- CN210857129U CN210857129U CN201921405955.XU CN201921405955U CN210857129U CN 210857129 U CN210857129 U CN 210857129U CN 201921405955 U CN201921405955 U CN 201921405955U CN 210857129 U CN210857129 U CN 210857129U
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Abstract
The utility model discloses a prefabricated template for concrete gravity dam backstage formula back slope, prefabricated template are reinforced concrete "L" type prefabricated template, "the inboard vertical plane of L" type prefabricated template sets up a plurality of pre-buried steel sheets, the welding has the spacer bar on the pre-buried steel sheet, be close to "L" type prefabricated template lateral surface both sides edge and set up pre-buried connecting steel plate respectively, polylith "L" type prefabricated template makes up into monoblock concrete dam back slope template through welding the pre-buried connecting steel plate on two adjacent "L" type prefabricated templates. The utility model discloses avoided in the loaded down with trivial details of concrete gravity dam backstage step back slope work progress dismantlement of large-scale template, avoided because of large-scale template erects the apparent quality problem that makes to roll and smash the drum face and appear, easy to assemble need not the maintenance, the later stage need not to dismantle, can fully exert the advantage that the concrete gravity dam was under construction fast.
Description
Technical Field
The utility model relates to a concrete form, especially a prefabricated template that is used for concrete gravity dam backstage formula back slope.
Background
The traditional gravity concrete, normal state or rolling dam back slope is smooth slope (some dam overflow is step type), needs large-scale template, the large-scale template is troublesome to erect, in addition, when rolling or vibrating, the large-scale machinery is difficult to be close to the edge due to the inclined template, and the efficacy is low; when the inclined formwork vibrates and rolls, air bubbles in concrete are difficult to emerge, so that a honeycomb pitted surface on the surface of the concrete is caused, the apparent mass is poor and the requirement is not met, the large formwork in the later stage needs to be additionally disassembled, the whole construction efficiency is influenced, and the construction period is prolonged.
Therefore, how to simplify the construction procedure, improve the engineering quality and improve the construction efficiency while optimizing the template in the construction process of the slope behind the dam is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a prefabricated template for concrete gravity dam backstage back slope is provided, and on-the-spot handling installation, the installation is simple, does benefit to dam body concrete and rolls, vibrates, and the later stage need not to dismantle, saves construction cost, can the full play advantage of being under construction fast.
In order to solve the above problem, the utility model discloses the technical scheme who adopts is: the utility model provides a prefabricated template for concrete gravity dam backstage formula back slope, prefabricated template is reinforced concrete "L" type prefabricated template, the inboard vertical plane of "L" type prefabricated template sets up a plurality of pre-buried steel sheets, the welding has positioning bar on the pre-buried steel sheet, be close to "L" type prefabricated template lateral surface both sides edge and set up pre-buried connecting steel plate respectively, polylith "L" type prefabricated template makes up into monoblock concrete dam back slope template through welding pre-buried connecting steel plate on two adjacent "L" type prefabricated templates.
The pre-buried connecting steel plates on the two adjacent L-shaped prefabricated formworks are welded together through the connecting steel plate sheets.
The L-shaped prefabricated formwork is not less than 20cm in thickness, the concrete strength is C30, the L-shaped prefabricated formwork is 3.0m × 3.0.0 m in size, the length of the bottom plate is not less than 1.5m, the diameter of the positioning steel bar is not less than 28mm, the size of the vertical surface of the L-shaped prefabricated formwork is 3.0m × 3.0.0 m, the width of the bottom plate is not less than 1.5m, the size of the connecting steel plate is 400 × 250mm, and the thickness of the connecting steel plate is not less than 5 mm.
The utility model has the advantages that: the installation of on-spot handling, the installation is simple, does benefit to dam body concrete and rolls, vibrates, and the later stage need not to dismantle, saves construction cost, can full play quick construction's advantage.
Drawings
Fig. 1 is a perspective view of the prefabricated form for the background step-type back slope of the concrete gravity dam of the present invention.
Fig. 2 is a schematic illustration of the field installation of fig. 1.
Detailed Description
The invention will be described in further detail with reference to the following drawings and embodiments:
as shown in fig. 1 and 2, the utility model discloses a prefabricated template for concrete gravity dam backstage back slope, prefabricated template is reinforced concrete "L" type prefabricated template 1, the inboard vertical plane of "L" type prefabricated template 1 sets up a plurality of pre-buried steel sheets 6, the welding has positioning bar 3 on pre-buried steel sheet 6, be close to 1 lateral surface both sides edge of "L" type prefabricated template and set up pre-buried connecting steel plate 4 respectively, polylith "L" type prefabricated template 1 makes up into monoblock concrete dam 5 back slope template through welding pre-buried connecting steel plate 4 on two adjacent "L" type prefabricated templates 1.
The embedded connecting steel plates 4 on the two adjacent L-shaped prefabricated formworks 1 are welded together through the connecting steel plate sheets 2.
The thickness of the L-shaped prefabricated template 1 is more than or equal to 20cm, the concrete strength is C30, the vertical surface size of the L-shaped prefabricated template 1 is 3.0m × 3.0.0 m, and the width of the bottom plate of the bottom surface is more than or equal to 1.5 m.
The diameter of the positioning steel bar 3 is more than or equal to 28 mm.
The size of the embedded connecting steel plate 4 is 300mm × 300mm, and the thickness is more than or equal to 5 mm.
The size of the connecting steel plate 2 is 400 × 250mm, and the thickness is more than or equal to 5 mm.
Prefabricating a prefabricated L-shaped template 1 according to the size in a prefabrication factory, embedding an embedded connecting steel plate 4 and an embedded steel plate 6 in the L-shaped prefabricated template 1 during prefabrication, curing the L-shaped prefabricated template 1 to the age, transporting to a concrete dam 5 pouring construction site, splicing the L-shaped prefabricated template 1, firstly adjusting the flatness, then welding the embedded connecting steel plates 4 on the L-shaped prefabricated template 1 together through the connecting steel plates 2, then welding positioning steel bars 3 on the embedded steel plates 6 (also welding the positioning steel bars 3 on the embedded steel plates 6 in the prefabrication factory in advance), and finally pouring the concrete dam 5.
The above-mentioned embodiments are only used for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the scope of the present invention should not be limited by the embodiment, i.e. all equivalent changes or modifications made by the spirit of the present invention are still within the scope of the present invention.
Claims (7)
1. The utility model provides a prefabricated template for concrete gravity dam backstage back slope, a serial communication port, prefabricated template is "L" type prefabricated template (1) of reinforced concrete, "the inboard vertical plane of" L "type prefabricated template (1) sets up a plurality of pre-buried steel sheets (6), the welding has positioning bar (3) on pre-buried steel sheet (6), it sets up pre-buried steel sheet (4) respectively to be close to" L "type prefabricated template (1) lateral surface both sides edge, polylith" L "type prefabricated template (1) makes up into monoblock concrete dam (5) back slope template through pre-buried steel sheet (4) on welding two adjacent" L "type prefabricated templates (1).
2. The prefabricated formwork for the background step-type back slope of the concrete gravity dam as claimed in claim 1, wherein the pre-embedded connecting steel plates (4) on the two adjacent L-shaped prefabricated formworks (1) are welded together through the connecting steel plate sheets (2).
3. The prefabricated formwork for the background step-type back slope of the concrete gravity dam as recited in claim 1, wherein the thickness of the L-shaped prefabricated formwork (1) is more than or equal to 20cm, and the strength of concrete is C30.
4. The prefabricated formwork for the back step type back slope of the concrete gravity dam as claimed in claim 3, wherein the vertical dimension of the L-shaped prefabricated formwork (1) is 3.0m × 3.0.0 m, and the width of the bottom plate of the bottom surface is more than or equal to 1.5 m.
5. The prefabricated formwork for the back step type back slope of the concrete gravity dam as recited in claim 1, wherein the diameter of the positioning steel bar (3) is more than or equal to 28 mm.
6. The prefabricated formwork for the background step-type back slope of the concrete gravity dam as recited in claim 2, wherein the size of the embedded connecting steel plate (4) is 300mm × 300mm, and the thickness is more than or equal to 5 mm.
7. The prefabricated formwork for the back step type back slope of the concrete gravity dam as claimed in claim 6, wherein the size of the connecting steel plate (2) is 400 × 250mm, and the thickness is more than or equal to 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921405955.XU CN210857129U (en) | 2019-08-27 | 2019-08-27 | Prefabricated template for background step type back slope of concrete gravity dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921405955.XU CN210857129U (en) | 2019-08-27 | 2019-08-27 | Prefabricated template for background step type back slope of concrete gravity dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210857129U true CN210857129U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921405955.XU Active CN210857129U (en) | 2019-08-27 | 2019-08-27 | Prefabricated template for background step type back slope of concrete gravity dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210857129U (en) |
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2019
- 2019-08-27 CN CN201921405955.XU patent/CN210857129U/en active Active
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