CN102777706A - Encased concrete nodular cast iron pipe - Google Patents
Encased concrete nodular cast iron pipe Download PDFInfo
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- CN102777706A CN102777706A CN2012102836625A CN201210283662A CN102777706A CN 102777706 A CN102777706 A CN 102777706A CN 2012102836625 A CN2012102836625 A CN 2012102836625A CN 201210283662 A CN201210283662 A CN 201210283662A CN 102777706 A CN102777706 A CN 102777706A
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- iron pipe
- cast iron
- socket
- spigot
- flange
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Abstract
The invention discloses an encased concrete nodular cast iron pipe and relates to the technical field of a socket-type nodular cast iron pipe. The encased concrete nodular cast iron pipe comprises a socket-type nodular cast iron pipe body; both ends of the socket-type nodular cast iron pipe body are respectively provided with a socket and a spigot; the outer wall of the socket-type nodular cast iron pipe body is coated with a concrete layer for ensuring the continuous lengths of the socket-type nodular cast iron pipe body equal; a cylindrical reinforcing mesh is sandwiched in the concrete layer; a connecting flange set is arranged at the outer end of the spigot; a ring-shaped boss is arranged outside the end part of the socket; and the outer diameter of the ring-shaped boss is the same with that of the concrete layer. The encased concrete nodular cast iron pipe has the advantages that (1) the concrete layer is coated on the outer wall of the socket-type nodular cast iron pipe body, so that the diameters of both ends of the socket-type nodular cast iron pipe body are ensured equal, the jacking construction is convenient to carry out, the construction period is shortened, the engineering cost is reduced, concrete on the outer layer of the socket-type nodular cast iron pipe body can also protect the socket-type nodular cast iron pipe body and the service life is prolonged; and (2) flanges and reinforcement plates are arranged at the end of the spigot of the socket-type nodular cast iron pipe coated with the concrete layer and the end of the spigot is used as a bearing end in the jacking construction, so that the construction is convenient to carry out.
Description
Technical field
The present invention relates to spigot and socket type ductile iron pipe technical field, particularly a kind of external wrapping concrete ductile iron pipe that is applied to jacking construction.
Background technique
The spigot and socket type ductile iron pipe has advantages such as mechanical property is good, interface reliability height, corrosion resistance and good, long service life, be widely used in industrial departments such as urban construction water delivery and gas transmission, but the laying of traditional spigot and socket type ductile iron pipe need be excavated groove.Along with the extensive development of urban construction, people propose higher requirement to living environment, and the laying of some pipeline need not allow the excavation groove on ground through the densely populated area; Perhaps owing to receive the restriction of execution conditions, like crossing highway, railway, river, above ground structure etc., can't be on ground the ditching and laying pipeline; Prolong construction period or increase construction cost, construct for ease, digging-free pipe jacking construction method has become the urban duct main means of constructing at present; But because existing spigot and socket type ductile iron pipe is bayonet joint; The cast tube two ends are respectively bellmouth and insertion end, and its two ends diameter is inconsistent, and bigger axial force can not be directly born in bayonet joint; Can not directly carry out jacking construction, restriction spigot and socket type ductile iron pipe Applicable scope.
Summary of the invention
The technical problem that the present invention will solve provides the external wrapping concrete ductile iron pipe, through setting up concrete layer in common spigot and socket type ductile iron pipe outside, keeps the entire body diameter identical, is convenient to carry out jacking construction; Through suitable flange and gusset being installed, bear thrust load, axial carrying problem when solving pushing tow at the socket end.Reach and conveniently be used for incremental launching construction, effectively shorten construction period, save the purpose of construction cost.
Design concept of the present invention is achieved in that existing spigot and socket type ductile iron pipe extensively quotes and fields such as urban construction water delivery and gas transmission with advantages such as its corrosion-resistant and mechanical property are good, and still pipeline need excavate groove and buries underground in work progress; Along with urban development and environmental requirement, the excavation groove is buried underground and is not allowed, and runs into need pass bridge and building the time when pipeline construction simultaneously; Do not allow to excavate groove yet; Construction for ease, a kind of jacking construction method that has been widely used at present, but spigot and socket type ductile iron pipe two ends diameter is inconsistent; Be not easy to jacking; The present invention is through on spigot and socket type spheroidal graphite cast iron tube body outer wall, coating concrete, and its outer diameter adjustment is consistent, is convenient to carry out jacking construction; Simultaneously flange and gusset are set as load-carrying construction in insertion end, bigger axial force problem can not be directly born in the solution bayonet joint.
For solving the problems of the technologies described above, the technological scheme that the present invention taked is: the external wrapping concrete ductile iron pipe, comprise spigot and socket type spheroidal graphite cast iron tube body, and its two ends are bellmouth and socket; Its key improvements is; Be coated with the concrete layer that makes its elongated diameter identical on the said spigot and socket type spheroidal graphite cast iron tube body outer wall; Accompany cylindric reinforcing bar net in the said concrete layer; Said socket outer end is provided with the adpting flange group; The outside, said bellmouth end is provided with annular boss, and the annular boss external diameter is identical with the external diameter of said concrete layer.
Said flange group comprises first flange and is located at least four first gussets on first flange and the spigot and socket type spheroidal graphite cast iron tube body outer wall; Said first gusset is evenly arranged around spigot and socket type ductile iron pipe body axis radially.
Also be provided with collar stop on the said spigot and socket type spheroidal graphite cast iron tube body outer wall, collar stop and the said first gusset end are to contacting.
Said flange group comprises from the socket outer end along axis the 3rd flange and second flange of inwardly order setting, evenly arranges at least two second gussets radially around spigot and socket type spheroidal graphite cast iron tube's axis between second flange and the 3rd flange.
Said the 3rd flange is provided with at least four through holes evenly arranging radially around its axis, and said spigot and socket type ductile iron pipe bellmouth end is provided with the tapped hole that quantity is identical with said number of openings and the position is identical.
Said spigot and socket type spheroidal graphite cast iron tube body middle part is provided with grout hole.
Said spigot and socket type ductile iron pipe inner wall is provided with inside liner, and said inside liner can be the slush inside liner.
Beneficial effect of the present invention is following:
(1) on spigot and socket type spheroidal graphite cast iron tube body outer wall, coats concrete layer, guarantee that the two ends diameter is identical, be convenient to jacking construction; Shorten construction period; Reduce engineering cost, outer field concrete can be protected spigot and socket type spheroidal graphite cast iron tube body simultaneously, increases the service life.
(2) at spigot and socket type spheroidal graphite cast iron tube faucet one end that is coated with concrete layer flange group and gusset are set, in jack-in process as load end, convenient construction.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Fig. 1 is the embodiment of the invention 1 structural representation;
Fig. 2 is the embodiment of the invention 2 structural representations;
Fig. 3 is the embodiment of the invention 3 structural representations;
In the accompanying drawings: 1, bellmouth; 2, annular boss; 3, first flange; 4, concrete layer; 5, grout hole; 6, reinforcing mesh; 7, socket; 8, first gusset; 9, second flange; 10, the 3rd flange; 11, second gusset; 12, seal ring; 13, inside liner; 14, nut; 15, stud bolt; 16, tapped hole; 17, collar stop.
Embodiment
Embodiment 1: the invention discloses the external wrapping concrete ductile iron pipe, comprise spigot and socket type spheroidal graphite cast iron tube body, its two ends are bellmouth 1 and socket 7; Its key improvements is; Be coated with on the said spigot and socket type spheroidal graphite cast iron tube body outer wall and make the identical concrete layer of its elongated diameter 4; Accompany cylindric reinforcing bar net 6 in the said concrete layer 4; Said socket 7 outer ends are provided with the adpting flange group; The outside, said bellmouth 1 end is provided with annular boss 2, and annular boss 2 external diameters are identical with the external diameter of said concrete layer 4.In concrete construction working process; Spigot and socket type spheroidal graphite cast iron tube body and cylindric reinforcing bar net are put into pre-processed mould; Concreting in mould utilizes concrete layer that its external diameter adjustment is consistent then, is convenient to carry out jacking construction; The effect of annular boss is to guarantee end concrete minimum thickness, guarantees the concrete bond strength.
Said flange group comprises first flange 3 and at least four first gussets of being located on first flange 3 and the spigot and socket type spheroidal graphite cast iron tube body outer wall 8; Said first gusset 8 is evenly arranged around spigot and socket type ductile iron pipe body axis radially.
Also be provided with collar stop 17 on the said spigot and socket type spheroidal graphite cast iron tube body outer wall, collar stop 17 and said first gusset, 8 ends are to contacting.On spigot and socket type ductile iron pipe socket end outer wall, first flange and first gusset are set; First gusset is symmetrical set four at least; Concrete quantity can be adjusted according to spigot and socket type spheroidal graphite cast iron tube body specification; First gusset and flange and collar stop 17 cooperate as the load end in the jack-in process, and convenient construction prevents to destroy in the jack-in process pipe end.Spigot and socket type ductile iron pipe female end inboard also is provided with the annular chamber that is used to hold seal ring, and the effect of seal ring is to prevent to reveal in water delivery or the gas transmission process.
Said spigot and socket type spheroidal graphite cast iron tube body middle part is provided with grout hole 5.Needs according to installation exercise etc. on the spigot and socket type spheroidal graphite cast iron tube wall can be provided with grout hole 5, so that when pushing tow, inject anti-friction agent to the pipe outer wall.Grout hole 5 can be installed sealing cover with its shutoff after the pipeline installation; Also can use other method with grout hole 5 shutoff; Will use packing (like the epoxies material) with gap and surperficial complete filling shutoff around the sealing cover after the grout hole 5 usefulness sealing cover shutoff, said sealing cover comprises seal groove and seal ring.
Said spigot and socket type ductile iron pipe inner wall is provided with inside liner 13, and said inside liner 13 can be slush inside liner 13, and inside liner can also be polyurethane lining or epoxy resin lining.The present invention is through coating concrete on spigot and socket type spheroidal graphite cast iron tube body outer wall, its outer diameter adjustment is consistent, is convenient to carry out jacking construction, and jacking for ease simultaneously is provided with flange and gusset as load-carrying construction in insertion end; The present invention is similar with common concrete duct in appearance, but it has continued the premium properties of spigot and socket type ductile iron pipe, gives full play to good mechanical property, decay resistance and the compression resistance of spigot and socket type ductile iron pipe.
Embodiment 2: the difference between present embodiment and the embodiment 1 is flange group structure; The said flange group of present embodiment inwardly comprises from socket 7 outer ends along axis evenly arranges at least two second gussets 11 around spigot and socket type spheroidal graphite cast iron tube's axis between the 3rd flange 10 of setting and second flange, 9, the second flanges 9 and the 3rd flange 10 in proper order radially.Between second flange 9 and the 3rd flange 10 the axis gusset is set, strengthens the load end.
Embodiment 3: the difference between present embodiment and the embodiment 2 is that said the 3rd flange 10 is provided with at least four through holes evenly arranging radially around its axis; Said spigot and socket type spheroidal graphite cast iron tube faucet 1 end is provided with the tapped hole 16 that quantity is identical with said number of openings and the position is identical; In the jacking construction process, the flange on the socket end of the female end of preceding pipe and back pipe is connected through stud bolt; Strengthen the rigidity that connects between two pipes; Specifically be achieved in that at first after jacking before the pipe will the back pipe socket insert before tube faucet, stud bolt 15 is passed the through hole that is provided with on the 3rd flange is screwed into tapped hole 16; And tighten, and then carry out jacking with nut 14.
In sum, key of the present invention is on spigot and socket type ductile iron pipe outer wall, to adhere to concrete layer, and its outer diameter adjustment is consistent; To be convenient to construction, to destroy concrete in the jack-in process in order preventing simultaneously, the flange group is set as the load end at spigot and socket type ductile iron pipe socket end; Conveniently carry out jacking; Widen spigot and socket type ductile iron pipe Applicable scope, improve efficiency of construction, reduce construction cost.
Claims (7)
1. an external wrapping concrete ductile iron pipe comprises spigot and socket type spheroidal graphite cast iron tube body, and its two ends are bellmouth (1) and socket (7); It is characterized in that; Be coated with the concrete layer (4) that makes its elongated diameter identical on the said spigot and socket type spheroidal graphite cast iron tube body outer wall; Accompany cylindric reinforcing bar net (6) in the said concrete layer (4); Said socket (7) outer end is provided with the adpting flange group; The outside, said bellmouth (1) end is provided with annular boss (2), and annular boss (2) external diameter is identical with the external diameter of said concrete layer (4).
2. external wrapping concrete ductile iron pipe according to claim 1 is characterized in that: said flange group comprises first flange (3) and is located at least four first gussets (8) on first flange (3) and the spigot and socket type spheroidal graphite cast iron tube body outer wall; Said first gusset (8) is evenly arranged around spigot and socket type ductile iron pipe body axis radially.
3. external wrapping concrete ductile iron pipe according to claim 2 is characterized in that: also be provided with collar stop (17) on the said spigot and socket type spheroidal graphite cast iron tube body outer wall, collar stop (17) contacts with said first gusset (8) end.
4. external wrapping concrete ductile iron pipe according to claim 1; It is characterized in that: said flange group comprises from socket (7) outer end along axis the 3rd flange (10) and second flange (9) of inwardly order setting, evenly arranges at least two second gussets (11) radially around spigot and socket type spheroidal graphite cast iron tube's axis between second flange (9) and the 3rd flange (10).
5. external wrapping concrete ductile iron pipe according to claim 4; It is characterized in that: said the 3rd flange (10) is provided with at least four through holes evenly arranging radially around its axis, and said spigot and socket type spheroidal graphite cast iron tube faucet (1) end is provided with the tapped hole that quantity is identical with said number of openings and the position is identical (16).
6. according to each described external wrapping concrete ductile iron pipe among the claim 1-5, it is characterized in that: said spigot and socket type spheroidal graphite cast iron tube body middle part is provided with grout hole (5).
7. external wrapping concrete ductile iron pipe according to claim 1 is characterized in that: said spigot and socket type ductile iron pipe inner wall is provided with inside liner (13), and said inside liner (13) is the slush inside liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102836625A CN102777706A (en) | 2012-08-10 | 2012-08-10 | Encased concrete nodular cast iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102836625A CN102777706A (en) | 2012-08-10 | 2012-08-10 | Encased concrete nodular cast iron pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102777706A true CN102777706A (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102836625A Pending CN102777706A (en) | 2012-08-10 | 2012-08-10 | Encased concrete nodular cast iron pipe |
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| CN (1) | CN102777706A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486349A (en) * | 2013-09-23 | 2014-01-01 | 河北新兴铸管有限公司 | Nodular cast iron jacking pipe and producing method thereof |
| CN104197118A (en) * | 2014-08-21 | 2014-12-10 | 山东球墨铸铁管有限公司 | Nodular cast iron top tube |
| CN104565535A (en) * | 2014-12-24 | 2015-04-29 | 安阳钢铁股份有限公司 | Nodular cast iron pipe jacking pipe and manufacturing method thereof |
| CN104960084A (en) * | 2015-07-22 | 2015-10-07 | 新兴铸管股份有限公司 | Encased concrete nodular cast iron pipe manufacturing device |
| CN106151694A (en) * | 2016-08-18 | 2016-11-23 | 新兴铸管股份有限公司 | Ductile iron pipe for jacking construction |
| CN106402493A (en) * | 2016-12-12 | 2017-02-15 | 新兴铸管股份有限公司 | Nodular cast iron jacking pipe intermediate relaying jacking device and pipe-jacking construction method utilizing nodular cast iron jacking pipe intermediate relaying jacking device |
| CN110886912A (en) * | 2019-12-31 | 2020-03-17 | 黄石新兴管业有限公司 | Pipeline device of nodular cast iron jacking pipe, jacking pipe mold and preparation method of jacking pipe mold |
| CN112411872A (en) * | 2020-11-16 | 2021-02-26 | 山东国铭球墨铸管科技有限公司 | Method for manufacturing environment-friendly engineering column beam by adopting nodular cast iron pipe waste |
| WO2021249486A1 (en) * | 2020-06-11 | 2021-12-16 | 新兴铸管股份有限公司 | Flange-less jacking pipe and casting method therefor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4808032A (en) * | 1986-05-30 | 1989-02-28 | Meyer & John Gmbh & Co. Tief- Und Rohrleitungsbau | Thrust pipe |
| US5097871A (en) * | 1989-02-10 | 1992-03-24 | Kurimoto, Ltd. | Pipe for pipe jacking |
| EP0611875A1 (en) * | 1993-02-19 | 1994-08-24 | Pont-A-Mousson S.A. | Forward thrust pipeline and corresponding forward thrust pipe |
| JPH08145253A (en) * | 1994-11-22 | 1996-06-07 | Kubota Corp | Pipe coupling for propulsion method |
| JP2000080889A (en) * | 1998-06-25 | 2000-03-21 | Kurimoto Ltd | Propulsion method and pipe joint for use therein |
| CN1442625A (en) * | 2002-12-18 | 2003-09-17 | 新兴铸管股份有限公司 | Internal setting type cast pipe interface |
| CN202708364U (en) * | 2012-08-10 | 2013-01-30 | 新兴铸管股份有限公司 | Nodular cast iron pipe provided with concrete in wrapping mode |
-
2012
- 2012-08-10 CN CN2012102836625A patent/CN102777706A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4808032A (en) * | 1986-05-30 | 1989-02-28 | Meyer & John Gmbh & Co. Tief- Und Rohrleitungsbau | Thrust pipe |
| US5097871A (en) * | 1989-02-10 | 1992-03-24 | Kurimoto, Ltd. | Pipe for pipe jacking |
| EP0611875A1 (en) * | 1993-02-19 | 1994-08-24 | Pont-A-Mousson S.A. | Forward thrust pipeline and corresponding forward thrust pipe |
| JPH08145253A (en) * | 1994-11-22 | 1996-06-07 | Kubota Corp | Pipe coupling for propulsion method |
| JP2000080889A (en) * | 1998-06-25 | 2000-03-21 | Kurimoto Ltd | Propulsion method and pipe joint for use therein |
| CN1442625A (en) * | 2002-12-18 | 2003-09-17 | 新兴铸管股份有限公司 | Internal setting type cast pipe interface |
| CN202708364U (en) * | 2012-08-10 | 2013-01-30 | 新兴铸管股份有限公司 | Nodular cast iron pipe provided with concrete in wrapping mode |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486349A (en) * | 2013-09-23 | 2014-01-01 | 河北新兴铸管有限公司 | Nodular cast iron jacking pipe and producing method thereof |
| CN103486349B (en) * | 2013-09-23 | 2015-10-28 | 河北新兴铸管有限公司 | The preparation method of spheroidal graphite cast iron push pipe |
| CN104197118A (en) * | 2014-08-21 | 2014-12-10 | 山东球墨铸铁管有限公司 | Nodular cast iron top tube |
| CN104565535A (en) * | 2014-12-24 | 2015-04-29 | 安阳钢铁股份有限公司 | Nodular cast iron pipe jacking pipe and manufacturing method thereof |
| CN104960084A (en) * | 2015-07-22 | 2015-10-07 | 新兴铸管股份有限公司 | Encased concrete nodular cast iron pipe manufacturing device |
| CN106151694A (en) * | 2016-08-18 | 2016-11-23 | 新兴铸管股份有限公司 | Ductile iron pipe for jacking construction |
| CN106151694B (en) * | 2016-08-18 | 2019-02-01 | 新兴铸管股份有限公司 | Ductile iron pipe for jacking construction |
| CN106402493A (en) * | 2016-12-12 | 2017-02-15 | 新兴铸管股份有限公司 | Nodular cast iron jacking pipe intermediate relaying jacking device and pipe-jacking construction method utilizing nodular cast iron jacking pipe intermediate relaying jacking device |
| CN110886912A (en) * | 2019-12-31 | 2020-03-17 | 黄石新兴管业有限公司 | Pipeline device of nodular cast iron jacking pipe, jacking pipe mold and preparation method of jacking pipe mold |
| WO2021249486A1 (en) * | 2020-06-11 | 2021-12-16 | 新兴铸管股份有限公司 | Flange-less jacking pipe and casting method therefor |
| CN112411872A (en) * | 2020-11-16 | 2021-02-26 | 山东国铭球墨铸管科技有限公司 | Method for manufacturing environment-friendly engineering column beam by adopting nodular cast iron pipe waste |
| CN112411872B (en) * | 2020-11-16 | 2022-03-22 | 国铭铸管股份有限公司 | Method for manufacturing environment-friendly engineering column beam by adopting nodular cast iron pipe waste |
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Application publication date: 20121114 |