CN111005353A - A precast concrete movable formwork subassembly for construction of concrete dam back slope - Google Patents
A precast concrete movable formwork subassembly for construction of concrete dam back slope Download PDFInfo
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- CN111005353A CN111005353A CN201911376580.3A CN201911376580A CN111005353A CN 111005353 A CN111005353 A CN 111005353A CN 201911376580 A CN201911376580 A CN 201911376580A CN 111005353 A CN111005353 A CN 111005353A
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- template
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- 239000004567 concrete Substances 0.000 title claims abstract description 35
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 239000011178 precast concrete Substances 0.000 title claims abstract description 16
- 238000009415 formwork Methods 0.000 title claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 238000003780 insertion Methods 0.000 claims abstract description 10
- 230000037431 insertion Effects 0.000 claims abstract description 10
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/08—Wall dams
- E02B7/10—Gravity dams, i.e. those in which the weight of the structure prevents overturning
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
Abstract
The invention discloses a precast concrete movable template assembly for construction of a back slope of a concrete dam, wherein a rectangular main template and a rectangular auxiliary template are reinforced concrete slabs, a groove towards the outer side of a side edge is formed in the length direction of the side edge of one side of the main template, through holes for installing a rotating shaft are reserved at end plugs at two ends of the groove, end notches just inserted into the end plugs on the main template are respectively formed at two ends of the lower side of one side of the auxiliary template, a movable insertion hole communicated with the two end notches is formed between the two end notches, the end notches of the auxiliary template are inserted through the end plugs on the main template, the rotating shaft is inserted into the through holes, the movable insertion holes and the through holes, the auxiliary template is hinged onto the main template, an embedded steel plate is arranged on the surface of the auxiliary template on the same plane as the end notches, positioning steel bars are welded on the embedded steel plate, and sealing rubber strips. The invention avoids the apparent quality problem of the rolling drum surface caused by the erection of a large-scale template, has adjustable template inclination angle, convenient installation, no need of maintenance and no need of disassembly in the later period, and can fully exert the advantage of quick construction of the concrete gravity dam.
Description
Technical Field
The invention relates to a template for pouring concrete, in particular to a prefabricated concrete movable template component for constructing a back slope of a concrete dam.
Background
Traditional gravity concrete, the normality or roll dam back slope is mostly smooth slope, need large-scale movable mould board to erect the construction, large-scale movable mould board erects and wastes time and energy, and it is all possible differently to different dam back slope angles, lack the commonality, in addition the template vibrates, when rolling, bubble is difficult to emerge in the concrete, cause concrete surface honeycomb pitted surface often, the poor requirement that is difficult to reach of apparent mass, use the template in turn can cause the shortage in the time of time limit for a project tight, and large-scale template still need dismantle in addition, it wastes time and energy to tear the form open, often stretch out concrete intermittent type time, influence the combination of next layer of concrete, lead to horizontal crack's production, and then influence construction quality.
Therefore, how to find a template which has strong universality and simple construction procedures and does not need to be disassembled in the construction process of the slope behind the dam is a problem to be solved urgently, and the engineering quality can be improved and the construction efficiency can be improved.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the precast concrete movable template component for the back slope construction of the concrete dam, which has the advantages of simple field hoisting and installation, easy dam concrete rolling and vibrating, no need of disassembly in the later period, construction cost saving and full play of the advantage of quick construction.
In order to solve the problems, the technical scheme adopted by the invention is as follows: a prefabricated concrete movable template assembly for constructing a back slope of a concrete dam comprises a main template positioned on a horizontal plane, an auxiliary template positioned on the side surface and hinged with the main template, and a rotating shaft, wherein the rectangular main template and the rectangular auxiliary template are reinforced concrete slabs, a groove towards the outer side of the side edge is formed in the length direction of the side edge of one side of the main template, through holes for mounting the rotating shaft are reserved in plugs at two ends of the groove, end notches just inserted into plugs on the main template are respectively formed in two ends of the lower side of one side of the auxiliary template, a movable insertion hole which is communicated with the two end notches and is parallel to the bottom edge of the auxiliary template is formed between the two end notches, the end notches of the auxiliary template are inserted into the end notches of the auxiliary template through the plugs on the main template, the rotating shaft is sequentially inserted into the through hole at one side, the movable insertion hole and the through hole at the other side to hinge the auxiliary template to the main template, an, sealing rubber strips are arranged at the peripheral edges of the main template and the auxiliary template.
The thickness of the main template and the auxiliary template is 20-30 cm, the main template and the auxiliary template are made of reinforced concrete with the concrete strength higher than C30,
the size of the main template and the auxiliary template is 3.0 multiplied by 3.0m, and the length of the groove is 1.5-2 m.
The diameter of the positioning steel bar is larger than 28 mm.
The width of the embedded steel plate is 30-50 cm, the length of the embedded steel plate is equal to that of the transverse edge of the auxiliary template, and the thickness of the embedded steel plate is larger than or equal to 5 mm.
The thickness of the sealing rubber strip is 1-2 cm.
The diameter of the rotating shaft is 1/3 of the thickness of the movable template plate, and the rotating shaft is made of high-strength steel.
The invention has the beneficial effects that: the installation of on-spot handling, according to dam back slope angular adjustment movable mould board angle that opens, the commonality is good, can mass production be used for different concrete gravity dams, reduces the template cost, and 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 quick construction.
Drawings
Fig. 1 is a schematic view of a main formwork of a precast concrete movable formwork assembly for construction of a back slope of a concrete dam according to the present invention.
Fig. 2 is a schematic view of a sub-formwork of the precast concrete movable formwork assembly for construction of a back slope of a concrete dam according to the present invention.
Fig. 3 is a perspective view illustrating a state in which the precast concrete movable formwork assembly for construction of a back slope of a concrete dam according to the present invention is used.
Fig. 4 is a plan view illustrating a state in which the precast concrete movable formwork assembly for construction of a back slope of a concrete dam according to the present invention is used.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
as shown in figures 1 and 2, the precast concrete movable template assembly for construction of the back slope of the concrete dam of the invention comprises a main template 1 positioned on a horizontal plane, an auxiliary template 4 positioned on a side surface and hinged with the main template 1, and a rotating shaft 3, wherein the rectangular main template 1 and the rectangular auxiliary template 4 are reinforced concrete slabs, a groove 10 towards the outer side of the side edge is formed in the length direction of the side edge of one side of the main template 1, through holes 13 for installing the rotating shaft 3 are reserved in plugs 11 at two ends of the groove 10, end notches 12 just inserted into the plugs 11 on the main template 1 are respectively formed at two ends of the lower side of one side of the auxiliary template 4, a movable insertion hole 7 which is communicated with the two end notches 12 and is parallel to the bottom edge of the auxiliary template 4 is formed between the two end notches 12, the rotating shaft 3 is sequentially inserted into the through hole 13 at one side, the movable insertion hole 7 and the through hole 13 at the other side to hinge the auxiliary template 4 to the main template 1, and an embedded steel plate 6 is arranged on the surface of the auxiliary template 4 which is coplanar with the end notch 12, positioning steel bars 5 are welded on the embedded steel plate 6, and sealing rubber strips 2 are arranged on the edges of the main template 1 and the auxiliary template 4.
The thickness of the main template 1 and the auxiliary template 4 is 20-30 cm, the main template 1 and the auxiliary template 4 are made of reinforced concrete with concrete strength higher than C30, the size of the main template 1 and the size of the auxiliary template 4 are 3.0 multiplied by 3.0m, and the length of the groove 10 is 1.5-2 m. The diameter of the positioning steel bar 5 is larger than 28 mm. The width of the embedded steel plate 6 is 30-50 cm, the length of the embedded steel plate is equal to that of the transverse edge of the auxiliary template 4, and the thickness of the embedded steel plate is larger than or equal to 5 mm. The thickness of the sealing rubber strip 2 is 1-2 cm.
The diameter of the rotating shaft 3 is 1/3 of the thickness of the movable mould plate 5, and the material is high-strength steel.
As shown in fig. 3 and 4, firstly prefabricating a prefabricated main template 1 and an auxiliary template 4 according to the size in a prefabrication workshop, embedding steel plates 6 in the auxiliary template 5 during prefabrication, reserving movable jacks 7, respectively maintaining two templates to the age, then carrying out hinge connection on the main template with a rotating shaft 3 and the auxiliary template 4 with the movable jacks 7, transporting to a concrete dam 9 pouring construction site, firstly adjusting the flatness, placing on the concrete dam 9, rotating the auxiliary template 4 to be consistent with the dam back slope angle through the rotating shaft 3 according to the dam back slope angle, then welding positioning steel bars 5 on the embedded steel plates 6 to play a role of fixing the templates, and then welding the embedded steel plates 6 on the auxiliary templates 4 spliced side by side through connecting steel plates 8 to form a whole template, thereby finishing the implementation of the whole invention.
The rotating shaft 3 and the movable insertion holes 7 jointly play a role in connecting the two templates, the two templates can rotate to different included angles simultaneously, and the notches reserved at the ends of the movable insertion holes 7 can ensure that the templates with certain thicknesses can rotate freely.
The positioning steel bars play a role in fixing the templates, and the connecting steel plates play a role in connecting and fixing the two templates to form the whole template. The size of the connecting steel plate is 500 multiplied by 300mm, and the thickness is more than or equal to 5 mm.
The above-mentioned embodiments are only 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 carry out the same, and the present invention should not be limited to the embodiments, i.e. the equivalent changes or modifications made in the spirit of the present invention are still within the scope of the present invention.
Claims (7)
1. A precast concrete movable template assembly for construction of a back slope of a concrete dam comprises a main template (1) positioned on a horizontal plane, an auxiliary template (4) positioned on a side surface and hinged with the main template (1), and a rotating shaft (3), and is characterized in that the rectangular main template (1) and the rectangular auxiliary template (4) are reinforced concrete plates, a groove (10) towards the outer side of a side edge is formed in the length direction of the side edge of one side of the main template (1), through holes (13) for mounting the rotating shaft (3) are reserved in plugs (11) at two ends of the groove (10), end notches (12) just inserted into the plugs (11) on the main template (1) are respectively formed at two ends of the lower side of one side of the auxiliary template (4), movable insertion holes (7) which are communicated with the two end notches (12) and are parallel to the bottom edge of the auxiliary template (4) are formed between the two end notches (12), the end notches (12) on the main template (1) are inserted into the end notches (4), the rotating shaft (3) is sequentially inserted into the through hole (13) in one side, the movable insertion hole (7) and the through hole (13) in the other side, the auxiliary template (4) is hinged to the main template (1), the surface of the auxiliary template (4) on the same surface with the end notch (12) is provided with an embedded steel plate (6), positioning steel bars (5) are welded on the embedded steel plate (6), and sealing rubber strips (2) are arranged on the edges of the periphery of the main template (1) and the periphery of the auxiliary template (4).
2. The precast concrete movable formwork assembly for the construction of the back slope of the concrete dam as claimed in claim 1, wherein the main formwork (1) and the sub formwork (4) have a thickness of 20-30 cm and are reinforced concrete having a concrete strength higher than C30.
3. The precast concrete movable formwork assembly for the construction of the back slope of the concrete dam as claimed in claim 2, wherein the size of the main formwork (1) and the sub formwork (4) is 3.0 x 3.0m, and the length of the groove (10) is 1.5 to 2 m.
4. Precast concrete movable formwork assembly for construction of a back slope of a concrete dam according to claim 2, characterized in that the positioning bars (5) have a diameter greater than 28 mm.
5. The precast concrete movable formwork component for the back slope construction of the concrete dam as recited in claim 2, characterized in that the width of the embedded steel plate (6) is 30-50 cm, the length is equal to the transverse side of the auxiliary formwork (4), and the thickness is more than or equal to 5 mm.
6. The precast concrete movable formwork assembly for construction of the back slope of the concrete dam as claimed in claim 2, wherein the thickness of the sealing rubber strip (2) is 1-2 cm.
7. The precast concrete movable formwork assembly for the construction of the back slope of the concrete dam as claimed in claim 1, wherein the diameter of the rotation shaft (3) is 1/3 of the thickness of the movable formwork (5) and the material is high strength steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376580.3A CN111005353A (en) | 2019-12-27 | 2019-12-27 | A precast concrete movable formwork subassembly for construction of concrete dam back slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376580.3A CN111005353A (en) | 2019-12-27 | 2019-12-27 | A precast concrete movable formwork subassembly for construction of concrete dam back slope |
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| Publication Number | Publication Date |
|---|---|
| CN111005353A true CN111005353A (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911376580.3A Pending CN111005353A (en) | 2019-12-27 | 2019-12-27 | A precast concrete movable formwork subassembly for construction of concrete dam back slope |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202849994U (en) * | 2012-05-28 | 2013-04-03 | 中国水利水电第七工程局有限公司 | Slope hydraulic pressure self-propelled hidden rail dragging mould |
| CN203668894U (en) * | 2014-01-21 | 2014-06-25 | 葛洲坝集团第五工程有限公司 | Concrete prefabricated form structure allowing rapid installation |
| CN203821347U (en) * | 2014-05-08 | 2014-09-10 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Reinforced concrete prefabricated gallery structure of roller compacted concrete dam |
| CN108505500A (en) * | 2018-05-19 | 2018-09-07 | 中水电第十工程局（郑州）有限公司 | It is a kind of to tilt seamless spliced prefab-form and its installation method |
| CN109404013A (en) * | 2018-11-26 | 2019-03-01 | 蓝传雯 | Concrete mould spraying side form mechanism |
| CN209195437U (en) * | 2018-11-26 | 2019-08-02 | 蓝传雯 | Concrete mould spraying side form mechanism |
| CN209308409U (en) * | 2018-12-21 | 2019-08-27 | 杭州德洋钢构有限公司 | It is a kind of for pouring the quick assembling steel form of steel reinforced concrete rectangular column |
| CN209466414U (en) * | 2018-08-31 | 2019-10-08 | 林延晖 | A kind of cast-in-place column construction template structure of assembled architecture |
| CN110424337A (en) * | 2019-08-27 | 2019-11-08 | 中水北方勘测设计研究有限责任公司 | Precast Gallery for RCC dam |
| CN212000921U (en) * | 2019-12-27 | 2020-11-24 | 中水北方勘测设计研究有限责任公司 | A precast concrete movable formwork subassembly for construction of concrete dam back slope |
-
2019
- 2019-12-27 CN CN201911376580.3A patent/CN111005353A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202849994U (en) * | 2012-05-28 | 2013-04-03 | 中国水利水电第七工程局有限公司 | Slope hydraulic pressure self-propelled hidden rail dragging mould |
| CN203668894U (en) * | 2014-01-21 | 2014-06-25 | 葛洲坝集团第五工程有限公司 | Concrete prefabricated form structure allowing rapid installation |
| CN203821347U (en) * | 2014-05-08 | 2014-09-10 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Reinforced concrete prefabricated gallery structure of roller compacted concrete dam |
| CN108505500A (en) * | 2018-05-19 | 2018-09-07 | 中水电第十工程局（郑州）有限公司 | It is a kind of to tilt seamless spliced prefab-form and its installation method |
| CN209466414U (en) * | 2018-08-31 | 2019-10-08 | 林延晖 | A kind of cast-in-place column construction template structure of assembled architecture |
| CN109404013A (en) * | 2018-11-26 | 2019-03-01 | 蓝传雯 | Concrete mould spraying side form mechanism |
| CN209195437U (en) * | 2018-11-26 | 2019-08-02 | 蓝传雯 | Concrete mould spraying side form mechanism |
| CN209308409U (en) * | 2018-12-21 | 2019-08-27 | 杭州德洋钢构有限公司 | It is a kind of for pouring the quick assembling steel form of steel reinforced concrete rectangular column |
| CN110424337A (en) * | 2019-08-27 | 2019-11-08 | 中水北方勘测设计研究有限责任公司 | Precast Gallery for RCC dam |
| CN212000921U (en) * | 2019-12-27 | 2020-11-24 | 中水北方勘测设计研究有限责任公司 | A precast concrete movable formwork subassembly for construction of concrete dam back slope |
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