CN207796263U - The composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete - Google Patents
The composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete Download PDFInfo
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- CN207796263U CN207796263U CN201721437580.6U CN201721437580U CN207796263U CN 207796263 U CN207796263 U CN 207796263U CN 201721437580 U CN201721437580 U CN 201721437580U CN 207796263 U CN207796263 U CN 207796263U
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Abstract
The utility model is related to a kind of composite structures of steel pipe external wrapping concrete, more particularly to a kind of composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete, it can be used for the high-pressure water pipeline in hydraulic engineering with highway crossing, or it is embedded under road or the Special zones such as river bed, including steel pipe internal layer and concrete outer layer, soap-free emulsion polymeization layer material middle layer is additionally provided between the steel pipe internal layer and concrete outer layer, the thickness of the soap-free emulsion polymeization layer material is 0.5 centimetre 2 centimetres, the soap-free emulsion polymeization layer material middle layer be include rubber, polyethylene, or the middle layer of silica gel material.The beneficial effects of the utility model are：Compared with the adhesive structure of generally use, which reduces the thickness of steel pipe wall, reduces the thickness and quantity of reinforcement of external wrapping concrete, it to which construction investment be greatly saved, especially stands good in high-pressure water delivery, and not easy to crack and deformation, service life is long, and stability is good.
Description
Technical field
The utility model is related to a kind of composite structure of steel pipe external wrapping concrete more particularly to a kind of novel soap-free emulsion polymeization steel pipes
The composite structure of external wrapping concrete, the high-pressure water pipeline that can be used in hydraulic engineering is with highway crossing or is embedded under road
Or the Special zones such as river bed.
Background technology
In hydraulic engineering, when designing large-scale Long-distance Pipeline for Water Conveyance, is limited by landform, geological conditions, can usually be met
Need highway crossing to high-pressure water pipeline or be embedded under road or the Special zones such as river bed need use steel pipe external wrapping concrete
Structure.
In the case where water delivery pressure is not high, steel pipe and external wrapping concrete disclosure satisfy that interior usually all using pattern is bonded
External load acts on and the requirement of deformation.
But in high-pressure water delivery, if steel pipe is still used with external wrapping concrete bonds pattern, steel pipe and outsourcing coagulation
Soil will produce larger stress and radial deformation in high pressure under water ballast(ing) effect, be easy to cause external wrapping concrete cracking.In order to
Meet stress requirement, restraint crack width then needs the thickness and quantity of reinforcement that increase external wrapping concrete, greatly increases engineering and throw
Money.
For this purpose, the utility model proposes a kind of composite structures of novel soap-free emulsion polymeization steel pipe external wrapping concrete.
Utility model content
For the above deficiency, the utility model aims to solve the problem that hydraulic engineering mesohigh aqueduct highway crossing or embedded
Under road or when the Special zones such as river bed, it is easy cracking when using the structure for bonding external wrapping concrete, and is wanted to meet stress
The problem of asking, restraint crack width, needing the thickness and quantity of reinforcement that increase external wrapping concrete, increase construction investment, it is proposed that
A kind of composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete, not only meets Structural Design Requirement, but also greatly save construction investment.
The utility model reaches above-mentioned purpose by following scheme：
The composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete, including steel pipe internal layer and concrete outer layer, the steel pipe
Soap-free emulsion polymeization layer material middle layer is additionally provided between internal layer and concrete outer layer, the thickness of the soap-free emulsion polymeization layer material is
0.5 centimetre -2 centimetres, the soap-free emulsion polymeization layer material middle layer is the middle layer for including rubber, polyethylene or silica gel material.
The composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete provided by the utility model, by steel pipe internal layer, distorted pattern
The smaller soap-free emulsion polymeization layer material middle layer of amount, concrete structure outer layer three parts composition, the small nothing of middle layer deformation modulus are viscous
Knot layer material separates steel pipe and external wrapping concrete, the internal loading of high pressure water is born by steel pipe, external wrapping concrete structure is born
External load including vehicular load, soil pressure etc., the space that thin intermediate material is formed effectively receive the radial of steel pipe to become
Shape is unlikely to deform and cracks, and need not increase the thickness of external wrapping concrete structure when to realize especially high-pressure water delivery
And quantity of reinforcement, the purpose reduced investment outlay.
Preferably, the thickness of the soap-free emulsion polymeization layer material is 1 centimetre.
In a preferred embodiment, the soap-free emulsion polymeization layer material middle layer is ethylene closed cell cystosepiment.
Preferably, the outer wall of steel pipe is additionally provided with anticorrosive paint layer.
Wherein, which can be permanent anticorrosive paint layer.
It is further preferred that the anticorrosive paint layer is solvent-free epoxy heavy-duty anticorrosive coating layer.
It is further preferred that the thickness of the anticorrosive paint layer is at 600 μm or more.
Preferably, the radial-deformation of the steel pipe is less than the thickness of soap-free emulsion polymeization layer material middle layer.
The radial-deformation of the steel pipe is less than the thickness of soap-free emulsion polymeization layer material middle layer so that steel pipe will not squeeze mixed
Solidifying soil causes concrete in tension stress excessive, especially in high-pressure water delivery.
Preferably, the pipe thickness of the steel pipe is determined by internal water pressure and diameter of steel tube.
For example, in a preferred embodiment, the pipe thickness of the steel pipe is 18mm.
It should be understood that the steel pipe layer in the composite structure of the utility model no longer needs to bear to include vehicular load, soil pressure
The external loads such as power act on, especially equally applicable in high-pressure water delivery, to compared with the structure of the prior art, reduce steel
Tube wall thickness, cost saving.
Preferably, the thickness of the external wrapping concrete layer is determined by external load effect.
Wherein, the external load effect includes vehicular load, soil pressure etc..
For example, in a preferred embodiment, the thickness of the external wrapping concrete layer is 500mm.
Preferably, the quantity of reinforcement of the external wrapping concrete layer is determined by external load effect.
Wherein, the external load effect includes vehicular load, soil pressure etc..
For example, in a preferred embodiment, the quantity of reinforcement of the external wrapping concrete layer is
It should be understood that the concrete outer layer in the composite structure of the utility model no longer needs to bear the internal loading of high pressure water
Effect, it is especially equally applicable in high-pressure water delivery, to which compared with the structure of the prior art, concrete outer layer can be reduced
Thickness and quantity of reinforcement, greatly save construction investment.
To sum up, the beneficial effects of the utility model are：Compared with the adhesive structure of generally use, which reduces
The thickness of steel pipe wall, reduces the thickness and quantity of reinforcement of external wrapping concrete, to which construction investment be greatly saved, especially
It stands good in high-pressure water delivery, and not easy to crack and deformation, service life is long, and stability is good.
Description of the drawings
Fig. 1 is that the cross-section structure of the composite structure of the novel soap-free emulsion polymeization steel pipe external wrapping concrete of the utility model embodiment shows
It is intended to.
The composite structure that Fig. 2 is Fig. 1 when as water supply project high-pressure water pipeline highway crossing or under being embedded in road or
Section arrangement of reinforcement when river bed.
Fig. 3 is that the steel pipe external wrapping concrete of the prior art is worn when bonding composite structure as water supply project high-pressure water pipeline
More highway or it is embedded in section arrangement of reinforcement under road or when river bed.
Wherein, 1- steel pipes internal layer, 2- soap-free emulsion polymeization layer material middle layers, 3- concrete outer layers.
Specific implementation mode
The utility model is further described below in conjunction with specific embodiment.
As shown in Figure 1, the composite structure of the novel soap-free emulsion polymeization steel pipe external wrapping concrete for the utility model, the composite structure
It is made of three-decker, is the steel pipe internal layer 1 of innermost layer and the soap-free emulsion polymeization layer material middle layer 2 and outermost layer of centre respectively
Concrete outer layer 3 constitute, wherein the nothing between intermediate soap-free emulsion polymeization layer material middle layer 2 and steel pipe internal layer 1, intermediate is viscous
It ties all without cohesive force between layer material middle layer 2 and concrete outer layer 3, the thickness of soap-free emulsion polymeization layer material middle layer 2 is 1
Centimetre, layer material can be rubber or polyethylene or silica gel material, such as soap-free emulsion polymeization layer material middle layer 2 can be poly-
Vinyl foam plate middle layer.
In the above-described embodiments, the small soap-free emulsion polymeization layer material middle layer 2 of middle layer deformation modulus is by steel pipe internal layer 1 and outer
Packet concrete outer layer 3 separates, and the radial-deformation of steel pipe internal layer 1 is less than the thickness of soap-free emulsion polymeization layer material middle layer 2 so that steel
Inner tube layer 1 will not extruded concrete cause 3 tension stress of concrete outer layer excessive, the interior lotus of high pressure water is born by steel pipe internal layer 1
It carries, 3 structure of external wrapping concrete outer layer bears the external load including vehicular load, soil pressure etc., among thin intermediate material
The space that layer 2 is formed effectively receives the radial deformation of steel pipe to be unlikely to deform and crack in high-pressure water delivery, need not increase outer
The thickness and quantity of reinforcement of packet concrete structure, reduce investment outlay.
The composite structure use of the present embodiment is illustrated in figure 2 in highway crossing or under being embedded in road or when river bed, as
The section arrangement of reinforcement of the aqueduct composite structure, the bonding composite structure of the prior art as shown in figure 3 is as same case
Under aqueduct when section arrangement of reinforcement compare, steel pipe and external wrapping concrete thickness reduce, reinforcing bar amount reduces, and greatly reduce work
Journey is invested.
It should be understood that in embodiment, the outer wall of steel pipe internal layer 1 is additionally provided with solvent-free epoxy heavy-duty anticorrosive coating layer, it should
The thickness of anticorrosive paint layer is at 600 μm or more, and the pipe thickness of steel pipe is 18mm, and the thickness of external wrapping concrete layer is 500mm, is matched
Muscle is
The above, the only preferable specific embodiment of the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its design is subject to equivalent substitution or change, should all cover within the protection scope of the present utility model.
Claims (9)
1. the composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete, which is characterized in that including steel pipe internal layer and concrete outer layer,
Soap-free emulsion polymeization layer material middle layer is additionally provided between the steel pipe internal layer and concrete outer layer, the soap-free emulsion polymeization layer material
Thickness is 0.5 centimetre -2 centimetres, and the soap-free emulsion polymeization layer material middle layer is the middle layer for including rubber, polythene material, institute
The radial-deformation for stating steel pipe is less than the thickness of soap-free emulsion polymeization layer material middle layer.
2. the composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete according to claim 1, which is characterized in that the nothing
The thickness for bonding layer material is 1 centimetre.
3. the composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete according to claim 1 or 2, which is characterized in that institute
It is ethylene closed cell cystosepiment to state soap-free emulsion polymeization layer material middle layer.
4. the composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete according to claim 1, which is characterized in that the steel
Pipe outer wall is additionally provided with anticorrosive paint layer.
5. the composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete according to claim 4, which is characterized in that described anti-
Rotten dope layer is solvent-free epoxy heavy-duty anticorrosive coating layer.
6. the composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete according to claim 4 or 5, which is characterized in that institute
The thickness of anticorrosive paint layer is stated at 600 μm or more.
7. the composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete according to claim 1, which is characterized in that the steel
The pipe thickness of pipe is determined by internal water pressure and diameter of steel tube.
8. the composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete according to claim 1, which is characterized in that described outer
The thickness of packet concrete layer is determined by external load effect.
9. the composite structure of the novel soap-free emulsion polymeization steel pipe external wrapping concrete according to claim 1 or 8, which is characterized in that institute
The quantity of reinforcement for stating external wrapping concrete layer is determined by external load effect.
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| CN201721437580.6U CN207796263U (en) | 2017-11-01 | 2017-11-01 | The composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete |
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| CN201721437580.6U CN207796263U (en) | 2017-11-01 | 2017-11-01 | The composite structure of novel soap-free emulsion polymeization steel pipe external wrapping concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576468A (en) * | 2022-01-25 | 2022-06-03 | 华能澜沧江水电股份有限公司 | Diversion type penstock protection device |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576468A (en) * | 2022-01-25 | 2022-06-03 | 华能澜沧江水电股份有限公司 | Diversion type penstock protection device |
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