CN210013190U - Rock-fill concrete stacked structure and rock-fill concrete dam body - Google Patents
Rock-fill concrete stacked structure and rock-fill concrete dam body Download PDFInfo
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- CN210013190U CN210013190U CN201920679046.9U CN201920679046U CN210013190U CN 210013190 U CN210013190 U CN 210013190U CN 201920679046 U CN201920679046 U CN 201920679046U CN 210013190 U CN210013190 U CN 210013190U
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- 239000004567 concrete Substances 0.000 title claims abstract description 82
- 230000003014 reinforcing effect Effects 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 12
- 238000010276 construction Methods 0.000 abstract description 14
- 239000010410 layer Substances 0.000 description 21
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000009415 formwork Methods 0.000 description 4
- 239000011376 self-consolidating concrete Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a rock-fill concrete stacked structure and rock-fill concrete dam body relates to hydraulic and hydroelectric engineering rock-fill concrete dam body filling construction technical field, has solved the rock-fill concrete dam body that exists among the prior art and has warp and lead to the technical problem of dam body surface unevenness because of the template. The rock-fill concrete stacking structure comprises a bin body and rock-fill concrete, wherein the bin body comprises at least two walls formed by stacking prefabricated modules, a plurality of walls surround to form the bin body, or the walls surround with a mountain or the outer wall surface of a building to form the bin body; and when the rock-fill concrete is poured into the bin body, the outer wall surface of the wall body forms a smooth dam body surface without deformation. The utility model is used for a rock-fill concrete dam body that surfacing, construction are simple, the cost is lower.
Description
Technical Field
The utility model belongs to the technical field of hydraulic and hydroelectric engineering rock-fill concrete dam body filling construction technique and specifically relates to a rock-fill concrete stacked structure and rock-fill concrete dam body are related to.
Background
The rock-fill concrete technology is a novel large-volume concrete construction technology invented by a hydro-power engineering system of Qinghua university and authorized by a national invention patent (the patent publication number is CN 1521363A). The construction process includes enclosing forms to form bin, directly feeding stone blocks or pebbles of grain size greater than 300mm into the bin to form rockfill with natural gaps, and filling the gaps with rockfill by means of the Self weight of High Self-Compacting Concrete (HSCC) without need of vibrating to form complete and compact Concrete. The method has the characteristics of low carbon, environmental protection, low hydration heat, high compactness, good stability, strong interlayer shearing resistance, high construction speed and the like.
In the construction of the built and built rockfill concrete dam in China, the form of the template generally adopts an internal pulling template or a cantilever template. The internal pulling template is mostly formed by alternately erecting light steel moulds and is fixed by an external binding steel pipe and a bin internal pulling steel bar. The cantilever template is an integral steel panel and is fixed through an embedded system, an inclined strut, a stressed tripod and the like.
The applicant finds that due to the fact that high self-compaction performance concrete in rock-fill concrete is good in flowability, the lateral pressure of the concrete to a template is larger than that of common concrete, the splicing seams of the existing inner pull template are multiple, the number of steel bars of the inner pull template in a cabin is multiple, slurry leakage is easy to occur at the seams, the template is deformed due to the fact that the template collides with the steel bars of the pull template in the warehouse surface market-removing process, construction progress and appearance quality are affected, the inner pull template is affected by the structure of the inner pull template, rock-fill cannot be carried out in a certain range on the upstream side and the downstream side of a dam body, the rock-fill rate of the dam body is reduced, gel materials near the template. The cantilever formwork has high installation accuracy and technical requirements, needs to be provided with special hoisting equipment and technical personnel, is limited by the height of each layer of rockfill, has large construction interference and high use cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rock-fill concrete stacked structure and rock-fill concrete dam body to the rock-fill concrete dam body that exists among the solution prior art is because of warping and leading to the technical problem of dam body surface unevenness in the template. The following explains various technical effects that can be produced by the preferred technical scheme in the technical schemes of the utility model.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the embodiment of the utility model provides a rock-fill concrete stacking structure, including storehouse body and rock-fill concrete, the rock-fill concrete pours into in the storehouse body; wherein,
the bin body comprises at least two walls formed by piling up prefabricated modules, a plurality of walls surround to form the bin body, or the walls surround with a mountain or the outer wall surface of a building to form the bin body; the wall body comprises at least two layers of laminated structures, each layer of laminated structure is formed by splicing at least three prefabricated modules, and a gap between two adjacent prefabricated modules of the laminated structure positioned at the lower layer and a gap between two adjacent prefabricated modules of the laminated structure positioned at the upper layer are staggered with each other; the gaps between different prefabricated modules are bonded by using a cementing material; and when the rock-fill concrete is poured into the bin body, the outer wall surface of the wall body forms a smooth dam body surface without deformation.
In a preferred or alternative embodiment, a reinforcing structure is provided between each two adjacent prefabricated modules in the layered structure, and the reinforcing structure spans the gap between each two adjacent prefabricated modules.
In a preferred or alternative embodiment, adjacent two of said reinforcing structures are staggered.
In a preferred or alternative embodiment, the reinforcing structure is a mounting groove provided on the prefabricated module and a reinforcing bar installed in the mounting groove.
In a preferred or alternative embodiment, the prefabricated modules in each layer of the layered structure are arranged in a one-in-one or two-in-one arrangement.
In a preferred or optional embodiment, the prefabricated modules are of a cuboid structure, the height size of the prefabricated modules ranges from 25cm to 35cm, and the wall comprises a layered structure with 3 layers to 5 layers.
In a preferred or alternative embodiment, the prefabricated modules have length, width and height dimensions of 50cm x 30cm, and the wall comprises a 4-ply laminated structure.
In a preferred or alternative embodiment, the precast modules are made of concrete.
In a preferred or alternative embodiment, the outer surface of each of the preformed modules is treated with bristles.
The embodiment of the utility model provides a rock-fill concrete dam body, including at least two the utility model discloses the rock-fill concrete stacked structure that any technical scheme provided, rock-fill concrete stacked structure arranges according to the length and the high extending direction of dam body, and cementitious material bonds for the gap between two adjacent rock-fill concrete stacked structure's the wall body.
The utility model provides a rock-fill concrete stacking structure, which comprises a bin body and rock-fill concrete, wherein the bin body is formed by the wall body in a surrounding way, or is formed by the wall body in a surrounding way and the mountain body or the outer wall of a building; the wall body comprises at least two layers of layered structures, the layered structures are formed by splicing at least three prefabricated modules, gaps among the prefabricated modules are different and are bonded by cementing materials, the wall body is adopted to replace a template in the prior art, and the rigidity and the thickness of the wall body formed by stacking the prefabricated modules are larger than those of the template in the prior art, so that the wall body is not easy to deform, and the flatness of the outer surface of the dam body is kept.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or 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 these drawings without creative efforts.
Fig. 1 is a schematic view of a rock-fill concrete stacking structure according to an arrangement mode provided in an embodiment of the present invention;
FIG. 2 is a schematic view of the wall shown in FIG. 1;
fig. 3 is a schematic view of a two-in-one arrangement mode of a rock-fill concrete stacking structure provided by an embodiment of the present invention;
FIG. 4 is a schematic view of the wall shown in FIG. 3;
FIG. 5 is a schematic view of the precast module shown in FIG. 1;
FIG. 6 is a graph showing the pressure distribution of the rockfill concreting pattern against the wall side.
In the figure, 1, a cabin body; 11. a wall body; 12. a layered structure; 13. prefabricating a module; 14. a reinforcing structure; 141. mounting grooves; 142. reinforcing ribs; 2. and (5) rock-fill concrete.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides a can prevent because the deformation of the storehouse body leads to the rock-fill concrete stacked structure of dam body surface unevenness.
The technical solution provided by the present invention will be explained in more detail with reference to fig. 1 to 6.
As shown in fig. 1 to 6, the rock-fill concrete stacking structure provided by the embodiment of the present invention comprises a bin body 1 and rock-fill concrete 2, wherein the rock-fill concrete 2 is poured into the bin body 1; wherein,
the bin body 1 comprises at least two walls 11 formed by piling up prefabricated modules 13, a plurality of walls 11 surround to form the bin body 1, or the walls 11 surround with the outer wall of a mountain or a building to form the bin body 1; the wall body 11 comprises at least two layers of laminated structures 12, each layer of laminated structure 12 is formed by splicing at least three prefabricated modules 13, and a gap between two adjacent prefabricated modules 13 of the laminated structure 12 at the lower layer and a gap between two adjacent prefabricated modules 13 of the laminated structure 12 at the upper layer are staggered; the gaps between different prefabricated modules 13 are bonded by using a cementing material; when the rock-fill concrete 2 is poured into the bin body 1, the outer wall surface of the wall body 11 forms a smooth dam body surface without deformation.
In particular, the cementitious material may be cement; the utility model provides a rock-fill concrete stacking structure, which comprises a bin body 1 and rock-fill concrete 2, wherein the bin body 1 is formed by enclosing a wall body 11, or is formed by enclosing the wall body 11 and a mountain body or the outer wall of a building; the wall body 11 comprises at least two layers of layered structures 12, the layered structures 12 are formed by splicing at least three prefabricated modules 13, gaps among the different prefabricated modules 13 are bonded by cementing materials, the wall body 11 is adopted to replace a formwork in the prior art, and the rigidity and the thickness of the wall body 11 formed by stacking the prefabricated modules 13 are both larger than those of the formwork in the prior art, so that the wall body is not easy to deform, and the flatness of the outer surface of the dam body is kept.
When the construction of arched dam body, because arched dam both sides land form is steep, can't use the big storehouse face car to go into the storehouse and pour, consequently the utility model discloses the construction of mainly suitable for arched dam body adopts the tower crane to go into the storehouse and pours.
As a preferred or alternative embodiment, a reinforcing structure 14 is provided between each two adjacent prefabricated modules 13 in the layered structure 12, and the reinforcing structure 14 spans the gap between the two adjacent prefabricated modules 13.
By adopting the reinforcing structure 14 to span the gap between two adjacent prefabricated modules 13, the lateral force applied to one of the prefabricated modules 13 can be transmitted to the adjacent prefabricated module 13, and meanwhile, the deformation caused by the weak gap can be prevented, and the flatness of the surface of the wall body 11 is further ensured.
In a preferred or alternative embodiment, two adjacent reinforcing structures 14 are staggered.
As a preferred or alternative embodiment, the reinforcing structure 14 is a mounting groove 141 provided on the prefabricated module 13 and a reinforcing bar 142 mounted in the mounting groove 141.
Specifically, the reinforcing ribs 142 are reinforcing steel bars, the two adjacent prefabricated modules 13 are provided with mounting grooves 141, the outer surfaces of the reinforcing ribs 142 are not higher than the outer surfaces of the prefabricated modules 13 when the reinforcing ribs 142 are placed in the mounting grooves 141, and a gap between the reinforcing ribs 142 and the mounting grooves 141 can be filled with a cementing material to fix the relative positions of the reinforcing ribs 142 and the mounting grooves 141.
In a preferred or alternative embodiment, the prefabricated modules 13 in each layer of the layered structure 12 are arranged in a one-to-one or two-to-one arrangement. The overall performance is better.
As a preferred or alternative embodiment, the prefabricated modules 13 are rectangular parallelepiped structures, the height dimension of the prefabricated modules 13 ranges from 25cm to 35cm, and the wall 11 comprises a number of layer structures 12 ranging from 3 layers to 5 layers.
In a preferred or alternative embodiment, the prefabricated modules 13 have a length, width and height dimension of 50cm x 30cm, and the wall comprises a 4-layer laminated structure.
Specifically, when the size is too large, the construction is not facilitated, and when the self weight is too small, the self weight cannot bear the lateral pressure of the self-compacting concrete, and the maximum lateral pressure and the lateral pressure of the concrete precast block template are calculated, the calculation formula and the lateral pressure distribution diagram (shown in fig. 4) in appendix A (A.1.6-2) of the hydropower formwork construction specification (DL/T5110-2013) are referred to:
F＝γcH，
wherein F is the maximum side pressure kN/m2 of the newly poured self-compacting concrete to the template;
γctaking 2300kN/m3 as the gravity density of the self-compacting concrete;
h is the total height of the concrete side pressure calculation position to the top surface of the newly cast concrete, 1.28 m.
Wherein Kc is the stability coefficient of the concrete precast block template;
G1the weight of the concrete precast block template is kN;
e, the sum F is the total side pressure of the concrete precast block template, kN;
f1taking the shearing resistance friction coefficient between the concrete precast block layers as 0.45;
C1shearing resistance and bonding force between concrete precast block layers are 0.40 Mpa;
A1unit wide force area, m2。
The calculation results are shown in the following table:
as can be seen from the above-mentioned calculation results and referring to fig. 6, in the two modes, except that the acting points of the side pressure of the rock-fill concrete 2 on the wall body 11 are different, the total side pressure and the stability factor of the wall body 11 are consistent, and the 4 concrete precast block combined templates meet the safety and stability requirements.
In a preferred or alternative embodiment, the precast modules are made of concrete.
Specifically, the prefabricating module 13 is prefabricated by adopting concrete with the same strength grade as the rock-fill concrete 2, and after the rock-fill concrete 2 is poured into the cabin body 1 to be solidified, the wall body 11 can be used as a part of a dam body, so that the process of removing a conventional template is omitted, and the construction time is shortened.
As a preferred or alternative embodiment, the outer surface of each prefabricated module 13 is treated with bristles.
Specifically, the surface roughness of the outer surface of the prefabricated module 13 becomes large after the brushing treatment, and after the prefabricated module is bonded by using a cementing material, the bonding strength is higher, and the deformation resistance is stronger.
The embodiment of the utility model provides a rock-fill concrete dam body, including at least two the utility model discloses the rock-fill concrete stacked structure that any technical scheme provided, rock-fill concrete stacked structure arranges according to the length and the high extending direction of dam body, and cementitious material bonds for the gap between two adjacent rock-fill concrete stacked structure's the wall body 11.
Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.
Also, above-mentioned the utility model discloses if disclose or related to mutually fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connection (such as riveting and welding), of course, the mutual fixed connection can also be an integral structure (for example, the mutual fixed connection is manufactured by casting and integral forming instead (except that the integral forming process can not be adopted obviously).
In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated. The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (10)
1. A rock-fill concrete stacking structure is characterized by comprising a bin body and rock-fill concrete, wherein the rock-fill concrete is poured into the bin body; wherein,
the bin body comprises at least two walls formed by piling up prefabricated modules, a plurality of walls surround to form the bin body, or the walls surround with a mountain or the outer wall surface of a building to form the bin body; the wall body comprises at least two layers of laminated structures, each layer of laminated structure is formed by splicing at least three prefabricated modules, and a gap between two adjacent prefabricated modules of the laminated structure positioned at the lower layer and a gap between two adjacent prefabricated modules of the laminated structure positioned at the upper layer are staggered with each other; the gaps between different prefabricated modules are bonded by using a cementing material; and when the rock-fill concrete is poured into the bin body, the outer wall surface of the wall body forms a smooth dam body surface without deformation.
2. The rock-fill concrete stack structure of claim 1, wherein a reinforcing structure is disposed between each adjacent two of the precast modules in the layered structure, the reinforcing structure spanning a gap between the adjacent two precast modules.
3. The rock-concrete stack structure of claim 2, wherein adjacent two of the reinforcing structures are staggered.
4. The rock-fill concrete stacking structure of claim 2, wherein the reinforcing structure is a mounting groove provided on the precast module and a reinforcing bar installed in the mounting groove.
5. The rock-fill concrete stacking structure of claim 1, wherein the precast modules in each layered structure are arranged in a one-in-one or two-in-one arrangement.
6. The rock-fill concrete stacking structure of claim 5, wherein the precast modules are rectangular parallelepiped structures, the height dimension of the precast modules ranges from 25cm to 35cm, and the wall includes a number of layered structures ranging from 3 layers to 5 layers.
7. The rock-fill concrete stacking structure of claim 6, wherein the precast modules have a length, width, and height dimension of 50cm x 30cm, and the wall body comprises a 4-layer laminated structure.
8. The rock-fill concrete stacking structure of claim 1, wherein the precast modules are made of concrete.
9. The rock-concrete stack structure of claim 8, wherein each of the prefabricated module outer surfaces is brushed.
10. A rock-fill concrete dam comprising at least two rock-fill concrete stacking structures as claimed in any one of claims 1 to 9, said rock-fill concrete stacking structures being arranged in a direction extending along the length and height of the dam, and the gaps between the walls of two adjacent rock-fill concrete stacking structures being bonded together by a cementitious material.
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| CN201920679046.9U CN210013190U (en) | 2019-05-13 | 2019-05-13 | Rock-fill concrete stacked structure and rock-fill concrete dam body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897912A (en) * | 2021-10-16 | 2022-01-07 | 浙江钱塘江水利建筑工程有限公司 | Rock-fill concrete masonry structure and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897912A (en) * | 2021-10-16 | 2022-01-07 | 浙江钱塘江水利建筑工程有限公司 | Rock-fill concrete masonry structure and construction method thereof |
| CN113897912B (en) * | 2021-10-16 | 2022-07-26 | 浙江钱塘江水利建筑工程有限公司 | Rock-fill concrete masonry structure and construction method thereof |
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Address after: 563000 No. 167, Ximu Road, Huichuan District, Zunyi City, Guizhou Province Patentee after: Zunyi water resources and Hydropower Survey, design and Research Institute Co.,Ltd. Address before: 563000 No. 167, Ximu Road, Huichuan District, Zunyi City, Guizhou Province Patentee before: ZUNYI SURVEY AND DESIGN INSTITUTE OF WATER CONSERVANCY AND HYDROPOWER |