CN204358276U - Concrete ceiling coil - Google Patents
Concrete ceiling coil Download PDFInfo
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- CN204358276U CN204358276U CN201420574335.XU CN201420574335U CN204358276U CN 204358276 U CN204358276 U CN 204358276U CN 201420574335 U CN201420574335 U CN 201420574335U CN 204358276 U CN204358276 U CN 204358276U
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- ceiling coil
- concrete ceiling
- concrete
- paraffin
- tube coupling
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Abstract
The utility model relates to a kind of concrete ceiling coil, and described concrete ceiling coil comprises: concrete tube coupling and the drag-reducing coating be formed on described concrete tube coupling outer wall.In the concrete ceiling coil that the utility model provides, by forming drag-reducing coating on the outer wall of concrete tube coupling, not only can avoid the erosion of underground water, and then improve the working life of described concrete ceiling coil, and the frictional resistance that can reduce between the outer surface of described concrete ceiling coil and the soil body, to facilitate the operation of push pipe jacking construction.
Description
Technical field
The utility model relates to construction engineering technical field, particularly a kind of concrete ceiling coil.
Background technique
Along with the development of urban economy and the expansion of urban size, the construction of the various municipal engineering such as subway, cross-river tunnel, sewage conduct also gets more and more.Push pipe jacking construction method is as a kind of method of construction of laying under ground piping of no-dig technique, and the little and advantage of lower cost to surrounding environment influence, is therefore widely used.In push pipe jacking construction process, by means of the jacking force from oil cylinder or jack etc., concrete ceiling coil is passed soil layer, and the pipeline buried underground following closely, its maximum superiority is to adopt the tunneling mode of not slotting, thus avoids the direct impact on above-ground structures or structure.
But, inevitably frictional resistance is there is between the outer surface of concrete ceiling coil and the soil body in push pipe jacking construction process, the particularly concrete ceiling coil of rectangle, the frictional resistance between its outer surface and soil body is very large, therefore needs very large jacking force just can construct.
Model utility content
The purpose of this utility model is to provide a kind of concrete ceiling coil, affects too greatly the problem of push pipe jacking construction operation with the frictional resistance solved between the outer surface of existing concrete ceiling coil and the soil body.
For solving the problems of the technologies described above, the utility model provides a kind of concrete ceiling coil, and described concrete ceiling coil comprises: concrete tube coupling and the drag-reducing coating be formed on described concrete tube coupling outer wall.
Optionally, in described concrete ceiling coil, the material of described drag-reducing coating comprises paraffin.
Optionally, in described concrete ceiling coil, described paraffin is No. 52 paraffin, and described No. 52 melting point of paraffin wax scopes are between 52 DEG C to 54 DEG C.
Optionally, in described concrete ceiling coil, the thickness range of described drag-reducing coating is between 3mm to 5mm.
Optionally, in described concrete ceiling coil, described concrete tube coupling is the concrete tube coupling of rectangle.
In the concrete ceiling coil that the utility model embodiment provides, by forming drag-reducing coating on the outer wall of concrete tube coupling, not only can avoid the erosion of underground water, and then improve the working life of described concrete ceiling coil, and the frictional resistance that can reduce between the outer surface of described concrete ceiling coil and the soil body, to facilitate the operation of push pipe jacking construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the concrete ceiling coil of the utility model embodiment;
Fig. 2 is the schematic flow sheet of the making method of the concrete ceiling coil of the utility model embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the concrete ceiling coil that the utility model proposes is described in further detail.According to the following describes and claims, advantage of the present utility model and feature will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, aid illustration the utility model embodiment lucidly.
[embodiment one]
Please refer to Fig. 1, it is the structural representation of the concrete ceiling coil 10 of the utility model embodiment.As shown in Figure 1, described concrete ceiling coil 10 comprises: concrete tube coupling 11 and the drag-reducing coating 12 be positioned on described concrete tube coupling 11 outer wall.
Concrete, the material of described drag-reducing coating 12 comprises paraffin, paraffin is the hydrocarbon mixture that carbon number is about 18 ~ 30, can be obtained, normally white, water insoluble, to have faint odor waxy solid by the waxy distillate cold press of natural or artificial petroleum or the method such as solvent dewaxing, sweating.The main component of paraffin is linear paraffin, and contains the monocyclic naphthenes of a small amount of branched paraffin and belt length side chain.Wherein, the content of linear paraffin is from 45% to close to 90% not etc.
The outer wall of described concrete tube coupling 11 is formed the drag-reducing coating 12 formed by paraffin brushing; on the one hand can the outer surface of concrete ceiling coil 10 described in available protecting by the erosion of underground water; thus improve the working life of described concrete ceiling coil 10; the outer surface of described concrete ceiling coil 10 is made to become smooth and smooth in the extreme on the other hand; therefore, it is possible to reduce the frictional resistance between described concrete ceiling coil 10 and the soil body, push pipe jacking construction is allowed to be more prone to.
The primary quality measure of paraffin is fusing point and oil content, and fusing point represents temperature resistant capability, and oil content represents purity.Paraffin is divided into different kinds according to fusing point usually, the general paraffin kind being just divided into different number plate every 2 DEG C, the paraffin of such as melting range between 52 DEG C to 54 DEG C is No. 52 paraffin, the paraffin of melting range between 54 DEG C to 56 DEG C is No. 54 paraffin, the paraffin of melting range between 56 DEG C to 58 DEG C is No. 56 paraffin, by that analogy.
For the ease of brushing, the paraffin of the present embodiment selects No. 52 paraffin, and described No. 52 melting point of paraffin wax scopes are between 52 DEG C to 54 DEG C.
Preferably, the thickness range of described drag-reducing coating 12 is between 3mm to 5mm.Such as, the thickness of described drag-reducing coating 12 is 3.5mm, 4mm or 4.5mm.
Accordingly, the present embodiment additionally provides a kind of making method of concrete ceiling coil.Incorporated by reference to reference to figure 1 and Fig. 2, the making method of described concrete ceiling coil comprises the following steps:
S10: anti-drag paint is provided, and be heated as liquid condition;
S11: a concrete tube coupling 11 is provided;
S12: the anti-drag paint of liquid condition is painted on the outer wall of described concrete tube coupling 11, to form drag-reducing coating 12.
Concrete, first, provide anti-drag paint, and be heated as liquid condition.In the present embodiment, described draft reduction material is No. 52 paraffin, puts No. 52 paraffin into metal bucket, and is heated to 60 ~ 65 DEG C with electric furnace and makes it melt and be rendered as liquid condition.
Then, a concrete tube coupling 11 is provided, is lain on place.In the present embodiment, described concrete tube coupling 11 is the concrete tube coupling 11 of rectangle.
Then, the anti-drag paint being in liquid condition is painted on the outer wall of described concrete tube coupling 11.
In the present embodiment; the brushing of anti-drag paint is carried out at twice; No. 52 paraffin of first time brushing condense into solid-state second time of carrying out again afterwards and brush; No. 52 paraffin of each brushing condensed into solid-state in 1 ~ 2 minute; described first time brushing is identical with the technique of second time brushing; all adopt roll coating process, after twice brushing at the outer wall of Rectangular Concrete tube coupling 11 by paraffin-protected layer smooth and smooth for formation 3 ~ 5mm.
Wherein, the brushing number of times of anti-drag paint is not limited to twice.Can be single also can be repeatedly that brushing number of times can be decided according to the actual requirements, such as: the thickness requirement of described drag-reducing coating 12, the quality etc. of first time brushing.
So far, define described concrete ceiling coil 10, the outer surface of described concrete ceiling coil 10 has paraffin-protected layer.
In other embodiments of the present utility model, described concrete tube coupling 11 can be the concrete tube coupling 11 of other shapes, forms the concrete ceiling coil 10 of other shapes after the outer wall of the concrete tube coupling 11 of other shapes is formed drag-reducing coating 12.
To sum up, in the concrete ceiling coil that the utility model embodiment provides, by forming drag-reducing coating on the outer wall of concrete tube coupling, not only can avoid the erosion of underground water, and then improve the working life of described concrete ceiling coil, and the frictional resistance that can reduce between the outer surface of described concrete ceiling coil and the soil body, to facilitate the operation of push pipe jacking construction.
Foregoing description is only the description to the utility model preferred embodiment; any restriction not to the utility model scope; any change that the those of ordinary skill in the utility model field does according to above-mentioned disclosure, modification, all belong to the protection domain of claims.
Claims (4)
1. a concrete ceiling coil, is characterized in that, comprising: concrete tube coupling and the drag-reducing coating be formed on described concrete tube coupling outer wall, the material of described drag-reducing coating comprises paraffin.
2. concrete ceiling coil as claimed in claim 1, it is characterized in that, described paraffin is No. 52 paraffin, and described No. 52 melting point of paraffin wax scopes are between 52 DEG C to 54 DEG C.
3. concrete ceiling coil as claimed in claim 1, it is characterized in that, the thickness range of described drag-reducing coating is between 3mm to 5mm.
4. concrete ceiling coil as claimed in claim 1, it is characterized in that, described concrete tube coupling is the concrete tube coupling of rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420574335.XU CN204358276U (en) | 2014-09-30 | 2014-09-30 | Concrete ceiling coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420574335.XU CN204358276U (en) | 2014-09-30 | 2014-09-30 | Concrete ceiling coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204358276U true CN204358276U (en) | 2015-05-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420574335.XU Active CN204358276U (en) | 2014-09-30 | 2014-09-30 | Concrete ceiling coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204358276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329516A (en) * | 2014-09-30 | 2015-02-04 | 上海市政建设有限公司 | Concrete jacking pipe and manufacturing method of concrete jacking pipe |
| CN107216079A (en) * | 2017-06-23 | 2017-09-29 | 成都市容德建筑劳务有限公司 | A kind of processing method of high intensity push pipe |
-
2014
- 2014-09-30 CN CN201420574335.XU patent/CN204358276U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329516A (en) * | 2014-09-30 | 2015-02-04 | 上海市政建设有限公司 | Concrete jacking pipe and manufacturing method of concrete jacking pipe |
| CN107216079A (en) * | 2017-06-23 | 2017-09-29 | 成都市容德建筑劳务有限公司 | A kind of processing method of high intensity push pipe |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |