CN208169729U - A kind of low pressure Prestressed concrete cylinder pipe and defeated drainage pipeline - Google Patents
A kind of low pressure Prestressed concrete cylinder pipe and defeated drainage pipeline Download PDFInfo
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- CN208169729U CN208169729U CN201820758547.1U CN201820758547U CN208169729U CN 208169729 U CN208169729 U CN 208169729U CN 201820758547 U CN201820758547 U CN 201820758547U CN 208169729 U CN208169729 U CN 208169729U
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Abstract
The utility model discloses a kind of low pressure Prestressed concrete cylinder pipe and defeated drainage pipelines, are related to pipe technology field.The low pressure Prestressed concrete cylinder pipe includes tube core concrete layer and protective layer.In the range of 90 millimeters to 245 millimeters, protective layer is sheathed on outside the first concrete layer the thickness of tube core concrete layer, and the first concrete layer is sheathed on outside steel cylinder, and steel cylinder is sheathed on outside the second concrete layer, and the thickness of steel cylinder is in the range of 1 millimeter to 1.2 millimeters.Compared with pipe of concrete in the prior art, low pressure Prestressed concrete cylinder pipe provided by the utility model is due to using steel cylinder and thickness tube core concrete layer 90 millimeter to 245 millimeter within the scope of of thickness within the scope of 1 millimeter to 1.2 millimeters, so can guarantee to reduce thickness while impervious and intensity in certain circumstances, to reduce the usage amount of steel and concrete, it is light-weight, it economizes on resources, high production efficiency.
Description
Technical field
The utility model relates to pipe technology field, in particular to a kind of low pressure Prestressed concrete cylinder pipe with
And defeated drainage pipeline.
Background technique
Low pressure Prestressed concrete cylinder pipe, abbreviation PCCP are a kind of to be made of sheet metal, high tensile steel wire and concrete
Compound pipeline complex pipeline.Ring orientation prestress steel wire, then the water of the densification of spray on it are wound on the high-strength concrete tube core with steel cylinder
Cement mortar protective layer, so that this water-supply-pipe be made.
It being found in many years use, the gravity stream that the height difference that concrete drain tile passes through topography mostly is formed is applied,
There are trench groove depths, and project amount is big, and construction cost is high, and destructible environment, sealing joint is not tight, and pipe shaft leak influences environmental protection
And other issues, use scope is restricted.Though present low pressure Prestressed concrete cylinder pipe has high leakproofness, high-strength
Degree, high permeability resistant, long service life, conveyance power of water are strong, pipe fitting mating the advantages that facilitating, but when being entirely used for drainage pipe
There are function excess phenomenons for some aspects, are unfavorable for resource-effective, high production cost.
In view of this, designing and manufacturing a kind of low pressure Prestressed concrete cylinder pipe and defeated drainage pipeline to economize on resources
Especially it is particularly important in pipeline production.
Utility model content
The purpose of this utility model is to provide a kind of low pressure Prestressed concrete cylinder pipes, and structure is simple, can be in spy
Determine to guarantee to reduce thickness while impervious and intensity under environment, so that the usage amount of steel and concrete is reduced, light-weight, section
About resource, high production efficiency.
The another object of the utility model is to provide a kind of defeated drainage pipeline, and structure is simple, can be in certain circumstances
Guarantee to reduce thickness while impervious and intensity, so that the usage amount of steel and concrete is reduced, it is light-weight, it economizes on resources,
High production efficiency, it is economical and practical.
The utility model is that it is realized by adopting the following technical scheme.
A kind of low pressure Prestressed concrete cylinder pipe, including tube core concrete layer and protective layer, the thickness of tube core concrete layer
For degree in the range of 90 millimeters to 245 millimeters, tube core concrete layer includes the first concrete layer, steel cylinder and the second concrete layer,
Protective layer is sheathed on outside the first concrete layer, and is fixedly connected with the first concrete layer, and the first concrete layer is sheathed on outside steel cylinder,
And be fixedly connected with steel cylinder, steel cylinder is sheathed on outside the second concrete layer, and is fixedly connected with the second concrete layer, the thickness of steel cylinder
In the range of 1 millimeter to 1.2 millimeters.
Further, steel cylinder with a thickness of 1.2 millimeters, tube core concrete layer with a thickness of 245 millimeters.
Further, tube core concrete layer further includes socket ring and socket hoop, and socket ring and socket hoop are installed on steel relatively
The both ends of cylinder, and welded with steel cylinder, socket ring stretches out the first concrete layer, and concordant with the end face of the second concrete layer, holds
Choma stretches out the second concrete layer, and concordant with the end face of the first concrete layer.
Further, socket hoop is provided with the first auxiliary section, and socket ring is provided with the second auxiliary section, the first auxiliary section it is interior
Diameter is greater than the outer diameter of the second auxiliary section.
Further, it is provided with annular groove on the second auxiliary section, rubber ring is installed in annular groove.
Further, the quantity of annular groove and rubber ring is two, and two annular grooves are parallel and are positioned apart from the
On two auxiliary sections, a rubber ring is installed in each annular groove.
Further, the thickness of socket hoop is in the range of 6 millimeters to 8 millimeters.
Further, it is wound outside the first concrete layer and is provided with compressor wire.
Further, protective layer is made of mortar material.
A kind of defeated drainage pipeline, including multiple low pressure Prestressed concrete cylinder pipes, multiple low pressure pre-stress steel cylinder coagulations
Native pipe joins end to end, and low pressure Prestressed concrete cylinder pipe includes tube core concrete layer and protective layer, the thickness of tube core concrete layer
For degree in the range of 90 millimeters to 245 millimeters, tube core concrete layer includes the first concrete layer, steel cylinder and the second concrete layer,
Protective layer is sheathed on outside the first concrete layer, and is fixedly connected with the first concrete layer, and the first concrete layer is sheathed on outside steel cylinder,
And be fixedly connected with steel cylinder, steel cylinder is sheathed on outside the second concrete layer, and is fixedly connected with the second concrete layer, the thickness of steel cylinder
In the range of 1 millimeter to 1.2 millimeters.
Low pressure Prestressed concrete cylinder pipe provided by the utility model and defeated drainage pipeline have the advantages that：
Low pressure Prestressed concrete cylinder pipe provided by the utility model, the thickness of tube core concrete layer at 90 millimeters extremely
In the range of 245 millimeters, tube core concrete layer includes that the first concrete layer, steel cylinder and the second concrete layer, protective layer are sheathed on
It outside first concrete layer, and is fixedly connected with the first concrete layer, the first concrete layer is sheathed on outside steel cylinder, and is fixed with steel cylinder
Connection, steel cylinder is sheathed on outside the second concrete layer, and is fixedly connected with the second concrete layer, and the thickness of steel cylinder is at 1 millimeter to 1.2
In the range of millimeter.Compared with pipe of concrete in the prior art, low pressure prestress steel cylinder concrete provided by the utility model
Pipe is due to using model of steel cylinder and thickness of the thickness within the scope of 1 millimeter to 1.2 millimeters at 90 millimeters to 245 millimeters
Tube core concrete layer within enclosing, so can guarantee to reduce thickness while impervious and intensity in certain circumstances, thus
The usage amount of steel and concrete is reduced, it is light-weight, it economizes on resources, high production efficiency.
Defeated drainage pipeline provided by the utility model, including low pressure Prestressed concrete cylinder pipe, structure is simple, Neng Gou
Guarantee to reduce thickness while impervious and intensity under specific environment, so that the usage amount of steel and concrete is reduced, it is light-weight,
It economizes on resources, high production efficiency is economical and practical.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the perspective view of the explosion of defeated drainage pipeline provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of defeated drainage pipeline provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of low pressure Prestressed concrete cylinder pipe provided by the embodiment of the utility model；
Fig. 4 is socket hoop in two neighboring low pressure Prestressed concrete cylinder pipe provided by the embodiment of the utility model and inserts
The structural schematic diagram of choma connection.
Icon：The defeated drainage pipeline of 10-；100- low pressure Prestressed concrete cylinder pipe；110- tube core concrete layer；120- is protected
Sheath；130- steel cylinder；140- socket ring；The second auxiliary section 141-；142- annular groove；143- rubber ring；150- socket hoop；151-
First auxiliary section；160- compressor wire；The pre-buried anchorage of 170-；The first concrete layer of 180-；The second concrete layer of 190-.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term "inner", "outside", "upper", "lower", "horizontal" etc. refer to
The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings or when utility model product uses is used
The orientation or positional relationship often put, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and should not be understood as indicating
Or imply relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connected ", " installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
With reference to the accompanying drawing, it elaborates to some embodiments of the utility model.In the absence of conflict, under
The feature in embodiment stated can be combined with each other.
Embodiment
Incorporated by reference to referring to Figures 1 and 2, the utility model embodiment provides a kind of defeated drainage pipeline 10, is used for defeated draining.
Its structure is simple, can guarantee to reduce thickness while impervious and intensity in certain circumstances, to reduce steel and coagulation
The usage amount of soil, it is light-weight, it economizes on resources, high production efficiency is economical and practical.The defeated drainage pipeline 10 includes that multiple low pressure are answered in advance
Power cylinder concrete pipe 100.Multiple low pressure Prestressed concrete cylinder pipes 100 join end to end, and form a channel, and water energy enough exists
It is flowed in the channel, realizes the function of defeated draining.In the present embodiment, what specific environment referred to is the operation work of defeated drainage pipeline 10
Make pressure or hydrostatic head pressure is no more than 0.4 megapascal and the tube top thickness of earth-fill cover of defeated drainage pipeline 10 is low no more than 10 meters
Defeated draining environment is pressed, in this context, the defeated drainage pipeline 10 in the present embodiment, which passes through, utilizes material more less than national standard
Achieve the effect that guarantee impervious and intensity, to economize on resources, improves production efficiency, and can reduce low pressure pre-stress steel cylinder
The weight of pipe of concrete 100, convenient for the transport and installation of low pressure Prestressed concrete cylinder pipe 100.
Referring to figure 3., low pressure Prestressed concrete cylinder pipe 100 includes tube core concrete layer 110 and protective layer 120.It protects
Sheath 120 is sheathed on outside tube core concrete layer 110, and is fixedly connected with tube core concrete layer 110, to tube core concrete layer
110 are protected.
In the present embodiment, protective layer 120 is made of mortar material.In actual production, by mortar spraying in tube core coagulation
Outside soil layer 110, one layer of fine and close protective layer 120 is formed, to protect to tube core concrete layer 110.
Tube core concrete layer 110 includes the first concrete layer 180, steel cylinder 130, the second concrete layer 190, socket ring 140
With socket hoop 150.Protective layer 120 is sheathed on outside the first concrete layer 180, and is fixedly connected with the first concrete layer 180.First
Concrete layer 180 is sheathed on outside steel cylinder 130, and is fixedly connected with steel cylinder 130.Steel cylinder 130 is sheathed on the second concrete layer 190
Outside, and with the second concrete layer 190 it is fixedly connected.Socket ring 140 and the opposite both ends for being installed on steel cylinder 130 of socket hoop 150, and
It is welded with steel cylinder 130, with the relative position fixed between socket ring 140 and socket hoop 150 and steel cylinder 130.In the present embodiment,
First concrete layer 180 and the second concrete layer 190 are staggered, and socket ring 140 stretches out the first concrete layer 180, and with the
The end face of two concrete layers 190 is concordant, and socket hoop 150 stretches out the second concrete layer 190, and the end with the first concrete layer 180
Face is concordant.The socket ring 140 of one low pressure Prestressed concrete cylinder pipe 100 and an adjacent low pressure prestress steel cylinder concrete
The socket hoop 150 of pipe 100 cooperates, and realizes joining end to end for multiple low pressure Prestressed concrete cylinder pipes 100.
It is worth noting that, the thickness of steel cylinder 130 is in the range of 1 millimeter to 1.2 millimeters, tube core concrete layer 110
Thickness is in the range of 90 millimeters to 245 millimeters.In the present embodiment, steel cylinder 130 with a thickness of 1.2 millimeters, tube core concrete layer
110 with a thickness of 245 millimeters.It should be noted that in the low pressure Prestressed concrete cylinder pipe 100 for producing identical nominal diameter
When, in standard GB/T/T19685-2017, steel cylinder 130 with a thickness of 1.5 millimeters, the thickness of tube core concrete layer 110 exists
In the range of 90 millimeters to 260 millimeters, and in the present embodiment, the thickness of steel cylinder 130 and tube core concrete layer 110 is rationally subtracted
It is small, guarantee that impervious and intensity is enough, so that low pressure Prestressed concrete cylinder pipe 100 reduces by 4% to 10% self weight, is convenient for
Transport and installation, are suitable for specific environment.
In the present embodiment, winding is provided with compressor wire 160 outside the first concrete layer 180, in construction period to pipe
Compression is previously applied in core concrete layer 110.Specifically, the number of plies that compressor wire 160 is wound is one layer, it is not limited to
This, in other embodiments, the number of plies that compressor wire 160 is wound may be two layers, and two layers of compressor wire 160 is wound
Outside the first concrete layer 180, it is spaced apart between two layers of compressor wire 160 by mortar spraying, the effect of precompressed is more preferable.
It is worth noting that, being provided with pre-buried anchorage 170 outside the first concrete layer 180, it is wound on the first concrete
The end of compressor wire 160 outside layer 180 is fixedly connected with pre-buried anchorage 170.The quantity of pre-buried anchorage 170 is two, and
The both ends of the first concrete layer 180 are relatively arranged on, one end of compressor wire 160 is connect with a pre-buried anchorage 170, another
End is connect with another pre-buried anchorage 170.Specifically, each pre-buried anchorage 170 is apart from its corresponding first concrete layer 180
The distance between end face is 25 millimeters, so that minimum range is between compressor wire 160 and the end face of the first concrete layer 180
25 millimeters.
In the present embodiment, socket ring 140 and socket hoop 150 are welded on the inner sidewall of steel cylinder 130, it is not limited to
This, socket ring 140 and socket hoop 150 can also be welded on the lateral wall of steel cylinder 130, to socket ring 140 and socket hoop 150
Welding position is not especially limited, as long as socket ring 140 and socket hoop 150 can be fixedly installed in the welding on steel cylinder 130
Position is within the protection scope of the present utility model.
Referring to figure 4., it is notable that socket hoop 150 is provided with the first auxiliary section 151, and socket ring 140 is provided with
Two auxiliary sections 141, the internal diameter of the first auxiliary section 151 are greater than the outer diameter of the second auxiliary section 141.It is mixed in multiple low pressure pre-stress steel cylinders
During solidifying soil pipe 100 joins end to end, the socket hoop 150 of a low pressure Prestressed concrete cylinder pipe 100 is sheathed on adjacent
Outside the socket ring 140 of one low pressure Prestressed concrete cylinder pipe 100, i.e. low pressure Prestressed concrete cylinder pipe 100
First auxiliary section 151 is sheathed on outside the second auxiliary section 141 of an adjacent low pressure Prestressed concrete cylinder pipe 100, and with this
Second auxiliary section, 141 clearance fit, with the relative position of the two neighboring low pressure Prestressed concrete cylinder pipe 100 of fixation.
In the present embodiment, it is provided with annular groove 142 on the second auxiliary section 141, rubber ring 143 is installed in annular groove 142,
Second auxiliary section 141 of one low pressure Prestressed concrete cylinder pipe 100 passes through rubber ring 143 and an adjacent low pressure prestressing force
First auxiliary section 151 of cylinder concrete pipe 100 abuts, and rubber ring 143 can seal the first auxiliary section 151 and the second auxiliary section
Gap between 141 prevents outside water entrance or internal water outflow.
Specifically, the quantity of annular groove 142 and rubber ring 143 is two, and two annular groove 142 is parallel and compartment of terrain is set
It is placed on the second auxiliary section 141, a rubber ring 143, a low pressure pre-stress steel cylinder coagulation is installed in each annular groove 142
Second auxiliary section 141 of native pipe 100 passes through two rubber rings 143 and an adjacent low pressure Prestressed concrete cylinder pipe 100
First auxiliary section 151 abuts, practical and efficient to increase sealing effect.
It is worth noting that, the thickness of socket hoop 150 is in the range of 6 millimeters to 8 millimeters, and in the present embodiment, socket hoop
150 with a thickness of 8 millimeters.It should be noted that in the low pressure Prestressed concrete cylinder pipe 100 for producing identical nominal diameter
When, in standard GB/T/T19685-2017, the thickness of socket hoop 150 is in the range of 8 millimeters to 10 millimeters, and in this reality
It applies in example, the thickness of socket hoop 150 is rationally reduced, guaranteeing to reduce certain interface rigidity while leakproofness is installed, just
Cooperate in local deformation, improves installation effectiveness.
Low pressure Prestressed concrete cylinder pipe 100 provided by the embodiment of the utility model, the thickness of tube core concrete layer 110
In the range of 90 millimeters to 245 millimeters, tube core concrete layer 110 includes that the first concrete layer 180, steel cylinder 130 and second are mixed
Solidifying soil layer 190, protective layer 120 is sheathed on outside the first concrete layer 180, and is fixedly connected with the first concrete layer 180, and first is mixed
Solidifying soil layer 180 is sheathed on outside steel cylinder 130, and is fixedly connected with steel cylinder 130, and steel cylinder 130 is sheathed on outside the second concrete layer 190,
And be fixedly connected with the second concrete layer 190, the thickness of steel cylinder 130 is in the range of 1 millimeter to 1.2 millimeters.With the prior art
In pipe of concrete compare, low pressure Prestressed concrete cylinder pipe 100 provided by the utility model due to use thickness 1 milli
Rice is to the tube core concrete of steel cylinder 130 and thickness within the scope of 90 millimeters to 245 millimeters within the scope of 1.2 millimeters
Layer 110, so can guarantee to reduce thickness while impervious and intensity in certain circumstances, to reduce steel and concrete
Usage amount, it is light-weight, economize on resources, high production efficiency so that 10 production cost of defeated drainage pipeline is low, installation and transporter
Just.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of low pressure Prestressed concrete cylinder pipe, which is characterized in that including tube core concrete layer and protective layer, the tube core
For the thickness of concrete layer in the range of 90 millimeters to 245 millimeters, the tube core concrete layer includes the first concrete layer, steel cylinder
With the second concrete layer, the protective layer is sheathed on outside first concrete layer, and is fixed and connected with first concrete layer
It connects, first concrete layer is sheathed on outside the steel cylinder, and is fixedly connected with the steel cylinder, and the steel cylinder is sheathed on described
It outside two concrete layers, and is fixedly connected with second concrete layer, model of the thickness of the steel cylinder at 1 millimeter to 1.2 millimeters
In enclosing.
2. low pressure Prestressed concrete cylinder pipe according to claim 1, which is characterized in that the steel cylinder with a thickness of
1.2 millimeters, the tube core concrete layer with a thickness of 245 millimeters.
3. low pressure Prestressed concrete cylinder pipe according to claim 1, which is characterized in that the tube core concrete layer is also
Including socket ring and socket hoop, the opposite both ends for being installed on the steel cylinder of the socket ring and the socket hoop, and with it is described
Steel cylinder welding, the socket ring stretch out first concrete layer, and concordant with the end face of second concrete layer, described to hold
Choma stretches out second concrete layer, and concordant with the end face of first concrete layer.
4. low pressure Prestressed concrete cylinder pipe according to claim 3, which is characterized in that the socket hoop is provided with
One auxiliary section, the socket ring are provided with the second auxiliary section, and the internal diameter of first auxiliary section is greater than second auxiliary section
Outer diameter.
5. low pressure Prestressed concrete cylinder pipe according to claim 4, which is characterized in that set on second auxiliary section
It is equipped with annular groove, rubber ring is installed in the annular groove.
6. low pressure Prestressed concrete cylinder pipe according to claim 5, which is characterized in that the annular groove and the rubber
The quantity of cushion rubber is two, and two annular grooves are parallel and are positioned apart from second auxiliary section, each described
One rubber ring is installed in annular groove.
7. low pressure Prestressed concrete cylinder pipe according to claim 6, which is characterized in that the thickness of the socket hoop exists
In the range of 6 millimeters to 8 millimeters.
8. low pressure Prestressed concrete cylinder pipe according to claim 1, which is characterized in that outside first concrete layer
Winding is provided with compressor wire.
9. low pressure Prestressed concrete cylinder pipe according to claim 1, which is characterized in that the protective layer is by mortar material
Material is made.
10. a kind of defeated drainage pipeline, which is characterized in that including multiple low pressure Prestressed concrete cylinder pipes, multiple low pressure
Prestressed concrete cylinder pipe joins end to end, and the low pressure Prestressed concrete cylinder pipe includes tube core concrete layer and protection
Layer, for the thickness of the tube core concrete layer in the range of 90 millimeters to 245 millimeters, the tube core concrete layer includes first mixed
Solidifying soil layer, steel cylinder and the second concrete layer, the protective layer are sheathed on outside first concrete layer, and with first coagulation
Soil layer is fixedly connected, and first concrete layer is sheathed on outside the steel cylinder, and is fixedly connected with the steel cylinder, the steel cylinder set
Be fixedly connected outside second concrete layer, and with second concrete layer, the thickness of the steel cylinder at 1 millimeter extremely
In the range of 1.2 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820758547.1U CN208169729U (en) | 2018-05-21 | 2018-05-21 | A kind of low pressure Prestressed concrete cylinder pipe and defeated drainage pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820758547.1U CN208169729U (en) | 2018-05-21 | 2018-05-21 | A kind of low pressure Prestressed concrete cylinder pipe and defeated drainage pipeline |
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| Publication Number | Publication Date |
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| CN208169729U true CN208169729U (en) | 2018-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483171A (en) * | 2021-07-02 | 2021-10-08 | 中山大学 | Novel prestressed steel cylinder concrete pipe |
-
2018
- 2018-05-21 CN CN201820758547.1U patent/CN208169729U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483171A (en) * | 2021-07-02 | 2021-10-08 | 中山大学 | Novel prestressed steel cylinder concrete pipe |
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Address after: 751600 Hexi, Qingtongxia City, Wuzhong City, Ningxia Hui Autonomous Region Patentee after: Ningxia Qinglong Pipe Group Co.,Ltd. Address before: 751600 Hexi, Qingtongxia City, Wuzhong City, Ningxia Hui Autonomous Region Patentee before: NINGXIA QINGLONG PIPES INDUSTRY Co.,Ltd. |