CN1323253C - Large caliber oblique stress high strength water transport pipe and its preparing process - Google Patents
Large caliber oblique stress high strength water transport pipe and its preparing process Download PDFInfo
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- CN1323253C CN1323253C CNB2005100123360A CN200510012336A CN1323253C CN 1323253 C CN1323253 C CN 1323253C CN B2005100123360 A CNB2005100123360 A CN B2005100123360A CN 200510012336 A CN200510012336 A CN 200510012336A CN 1323253 C CN1323253 C CN 1323253C
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Abstract
The present invention relates to a water transport pipe with large caliber, oblique stress and high strength and a preparation technique thereof. Three layers of frameworks made of longitudinal ribs and annular ribs are arranged in the body of the pipe, slant barrel pipes are respectively and uniformly fixed to the inner framework and the middle framework, stranded wires fixed to both ends of the body of the pipe are arranged in the slant barrel pipes, and the stranded wires can be tensioned to produce prestressing force by anchor devices; circular arc barrel pipes are wound on the outer framework, stranded wires anchored at both sides of the body of the pipe by anchor devices are arranged in the circular arc barrel pipes, and the stranded wires can be tensioned to produce prestressing force. The preparation technique of the present invention uses an upright molding technique which comprises the production of a round platform of a faucet, the installation of the three layers of frameworks and the barrel pipes on the frameworks, the anchoring of the stranded wires and the filling of concrete. The present invention can bear pulling stress generated by inner loads and outer loads, the body of a centripetal stress pipe can not crack under the action of the pulling stress, and the performance of shearing resistance and the performance of bending resistance are effectively enhanced.
Description
Technical field
The present invention relates to a kind of large caliber oblique stress high strength water transport pipe and preparation process thereof.
Background technique
The present Core type prestressed concrete pipe for water of producing with tratitional technology is because of the restriction that is subjected to technology, preparation condition can not be produced the high voltage tolerant input waterpipe that internal diameter surpasses 3 meters.The PCCP pre-stress steel cylinder conduit pipe that introduction of foreign technology is produced, be subjected to the restriction of technology, preparation condition can only produce the pipeline of 4 meters of internal diameters, because of adopting the spigot and socket type interface mode not reach totally-enclosed standard, the mouth of pipe can cause interface to leak, and axial crack appears in buried meeting, also is not suitable for big flow, extensive, the use of the water diversion project in zone greatly because of cost is high especially.Applicant (former Hengshui Taichang Prestress Co. Ltd. now changes to Changjiang Prestress Co., Ltd., Hengshui) is in April 13 calendar year 2001 application " a kind of large-aperture prestressed concrete pipe and the preparation process thereof " power that patented, the patent No. 01110638.7.
Summary of the invention
Technical problem to be solved by this invention provides the tensile stress that external load produces in a kind of the bearing, guarantee that the cracking under the action of pulling stress does not appear in the centripetal-stress body, effectively improves a kind of large caliber oblique stress high strength water transport pipe of the performance of shearing resistance, bending resistance.
The present invention adopts following technological scheme:
The present invention includes concrete tube body and be arranged on the cylindrical skeleton of making by vertical muscle and ring muscle in the body, it is characterized in that described cylindrical skeleton is by the nexine skeleton, middle level skeleton and outer skeleton constitute, on nexine skeleton and middle level skeleton, evenly be fixed with respectively with the skeleton medial axis and be vertical twisted state setting and the opposite oblique bobbin of twisted direction, be provided with in the oblique bobbin at the body two ends and produced prestressed steel strand through stretch-draw by what ground tackle was fixed, be the evenly distributed alternate circular-arc bobbin that has around the home in outer skeleton both sides, be provided with in the circular-arc bobbin and produced prestressed steel strand through stretch-draw by the ground tackle anchoring of body both sides.
The present invention intersects in outer skeleton bilateral symmetry circular-arc bobbin around the home, is provided with in the circular-arc bobbin to have produced prestressed steel strand by the ground tackle anchoring of body both sides through stretch-draw.
Oblique bobbin of the present invention can be the inboard or the outside that is uniformly arranged and fixed and is arranged on the nexine skeleton, also can be evenly inside and outside transpostion interval and arrange the interior outside that is fixedly installed on the nexine skeleton.
Oblique bobbin of the present invention can be the inboard or the outside that is uniformly arranged and fixed and is arranged on the middle level skeleton, also can be evenly inside and outside transpostion interval and arrange the interior outside that is fixedly installed on the middle level skeleton.
Circular-arc bobbin of the present invention can be the inboard or the outside that is uniformly arranged and fixed and is arranged on outer skeleton, also can be even transpostion interval and arrange the interior outside that is fixedly installed on outer skeleton.
The present invention evenly is provided with 4-24 attachment hole on body, be provided with the steel strand that are used for connecting between body in the attachment hole.
One end of body of the present invention is the convex socket, and the other end of body is the concavity bellmouth, is respectively arranged with the spill annular groove that has seal ring in socket and the bellmouth.The internal diameter of described body is a 3-7 rice.
Oblique stress high strength water transport pipe preparation process of the present invention adopts following steps:
Body of the present invention adopts vertical making moulding process:
The making of first step body bellmouth circular platform: with large size machine tool processing body bellmouth template, the bellmouth template is fixed on the circular platform, the segmentation of body bellmouth platform is arranged on the blinding layer of accomplishing fluently behind the fluting;
The second step support inner formword: the body inner formword is fixed on the circular platform;
The 3rd step carcasing: utilize nonprestressed reinforcement be made into respectively as vertical muscle and ring muscle in, in, outer three layers of drum shape frame;
The 4th step is bobbin (bellows) fixedly: the nexine skeleton is enclosed within on the inner formword, and oblique bobbin evenly distributes; The middle level skeleton is enclosed within the outside of nexine skeleton, and oblique bobbin evenly distributes; Outer skeleton is enclosed within outside even distribution circle arcuation bobbin on outer skeleton of middle level skeleton, prestress wire is penetrated respectively in oblique, the circular-arc bobbin; The letter pipe that is installed with oblique prestress wire is fixed in respectively on nexine and the middle level cylindrical skeleton equably; The bobbin (being made of bellows or plastic tube) that is installed with circular-arc prestress wire evenly is fixed on the outer cylinder frame, and its two ends are individually fixed in the anchor hole of body both sides; Three layers of skeleton are nested together, and skeleton one distal process of diameter minimum is gone out, make it form tube core socket skeleton, promptly an end of body is a socket, and the other end of body is a bellmouth.
The 5th step support outer moulding board: the body outer moulding board is fixed on above the body bellmouth platform;
The 6th step concrete is built: with the concreting that stirs in the body mould;
Moulding is smash in the shake of the 7th step: moulding is smash in shake in order, and concrete is smash moulding by process engineering requirement shake;
The 8th step stretch-draw steel strand are also used the ground tackle anchoring: when build concrete set strength in the body mould reach its standard 70% the time, be inserted in steel strand in the ground tackle hole with penetrating two ends in the oblique and hoop bellows, make it to produce centripetal-stress or longitudinal prestressing by technological requirement stretch-draw:
The grouting of the 9th step is solidified: after the power value of stretch-draw steel strand generation reaches requirement, with solidifying in the high-grade cement injection bobbin;
The form removal maintenance of the tenth step: when the high-grade cement intensity in injecting bellows reaches 95%, the template of dismantling and maintenance;
The 11 step displacement lifting: supporting the body well lifting that is shifted;
The 12 step body connects: with the steel strand in the attachment hole between body body is coupled together;
The 13 step anchor grouting: will injecting high-grade cement in the attachment hole again after the steel strand tension anchoring that connects body.
Good effect of the present invention is as follows: the present invention can optimize pipe structure by working condition requirement.Adopt the new mode of " ring-like reticular structure ", elder generation is to the concrete tube wall precharge pressure before bearing external load, make overall structure form " centripetal-stress state ", thereby can offset because all or part of tensile stress that " interior external load " produces guarantees that the cracking under tensile stress and the action of pulling stress does not appear in the centripetal-stress body.The new technology that adopts prestressing force " vertically to connect ", in conjunction with " flexible foundation theory ", utilize " bearing shock-proof device " in the work progress of pipeline, connecing working condition requirement is linked to be adjacent body and reaches hundred meters " overlength body ", strengthen the performance of shearing resistance, bending resistance, possessed the condition of whole resist displacement, antidetonation.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention
Accompanying drawing 2 is the accompanying drawing 1A-A of the present invention place cross section view vertical with the body medial axis
Accompanying drawing 3 is tube wall partial sectional view of the present invention
Accompanying drawing 4 is the B portion enlarged view of accompanying drawing 1 of the present invention
Accompanying drawing 5 is provided with schematic representation for the circular-arc bobbin of the present invention is to intersect
Accompanying drawing 6 is the accompanying drawing 5A-A of the present invention place cross section view vertical with the body medial axis
Accompanying drawing 7 is body end face External view of the present invention
In the accompanying drawings: 1 body, 2 vertical muscle, 3 ring muscle, 4 outer skeletons, 5 middle level skeletons, 6 nexine skeletons, 7 oblique bobbins, 8 oblique bobbins, 9 circular-arc bobbins, 10 steel strand, 11 attachment holes, 12 Baltimore grooves, 13 bellmouths, 14 sockets.
Embodiment
As accompanying drawing 1, shown in 2, the present invention includes concrete tube body 1 and be arranged on the nexine skeleton of making by vertical muscle 2 and ring muscle 36 in the body 1, middle level skeleton 5 and outer skeleton 4, on nexine skeleton 6 and middle level skeleton 5, be fixed with respectively with the skeleton medial axis and be twisted state setting and the opposite oblique bobbin 7 of twisted direction, 8, oblique bobbin 7, be provided with in 8 on body 1 and produced prestressed steel strand 10 through stretch-draw by what ground tackle was fixed, be the evenly distributed alternate circular-arc bobbin 9 that has around the home in outer skeleton 4 both sides, be provided with in the circular-arc bobbin 9 and produced prestressed steel strand 10 through stretch-draw by the ground tackle anchoring of body both sides.
Shown in accompanying drawing 5,6, the present invention intersects in outer skeleton 4 bilateral symmetry circular-arc bobbin 9 around the home, is provided with in the circular-arc letter pipe 9 to have produced prestressed steel strand 10 by the ground tackle anchoring of body both sides through stretch-draw.
Circular-arc bobbin 9 of the present invention can be the inboard or the outside that is uniformly arranged and fixed and is arranged on outer skeleton 4, also can be even transpostion interval and arrange the interior outside that is fixedly installed on outer skeleton 4.Shown in accompanying drawing 1,5, circular-arc bobbin 9 is the outside that parallel or cross arrangement each other is fixedly installed on outer skeleton 4.
Shown in accompanying drawing 1,7, the present invention evenly is provided with 4-24 attachment hole 11 on body 1, is provided with the steel strand that are used for connecting between body in the attachment hole 11.Shown in the accompanying drawing 7, body bilateral symmetry up and down respectively is provided with 3 attachment holes 11, and correspondence left and right sides symmetry in body 1 respectively is provided with 3 attachment holes 11.When two bodys connect, the socket 14 of a body is inserted in the bellmouth 13 of another bodys, the oblique steel strand of a body are connected with the oblique steel strand of another pipe; And with promptly vertical muscle 2 connections of vertical non-prestressing tendon of two pipeline sections; Attachment hole 11 usefulness steel strand on two bodys penetrate, and couple together, and the seal rings that are arranged in two the spill annular grooves 12 in bellmouth 13 and the socket 14 play the better seal effect.
Steel strand of the present invention are to twist the steel strand that form mutually by many steel wire plying, and described bobbin is metal bellows or the inner plastic tube that lubricant oil is arranged of irritating.Steel strand are color with Φ 13 or Φ 15 series.Described bellows is that thickness is that 0.38mm, width are that the steel band of 35mm rolls with rolling machine and forms.
The present invention adopts and to be prepared as follows technology: with the preparation internal diameter is that 5000mm, wall thickness are that 300mm, length are that the concrete water transmission pipe of 8000mm is an example:
Body of the present invention adopts vertical making moulding process:
The making of first step body bellmouth circular platform: with large size machine tool processing body bellmouth template, the bellmouth template is fixed on the circular platform, the segmentation of body bellmouth platform is arranged on the blinding layer of accomplishing fluently behind the fluting;
The second step support inner formword: the body inner formword is fixed on the circular platform;
The 3rd step carcasing: utilize nonprestressed reinforcement be made into respectively as vertical muscle 2 and ring muscle 3 in, in, outer three layers of drum shape frame;
The 4th step is bobbin (bellows) fixedly: nexine skeleton 6 is enclosed within on the inner formword, and oblique bobbin 7 evenly distributes; Middle level skeleton 5 is enclosed within the outside of nexine skeleton 6, and oblique bobbin 8 evenly distributes; Outer skeleton 4 is enclosed within outside even distribution circle arcuation bobbin 9 on outer skeleton 4 of middle level skeleton 5, prestress wire is penetrated respectively in oblique, the circular-arc bobbin; The bobbin 7,8 that is installed with oblique prestress wire is fixed in respectively on nexine and the middle level cylindrical skeleton 6,5 equably; The bobbin 9 (being made of bellows or plastic tube) that is installed with circular-arc prestress wire evenly is fixed on the outer cylinder frame 4, and its two ends are individually fixed in the anchor hole of body both sides; Three layers of skeleton are nested together, and skeleton one distal process of diameter minimum is gone out, make it form tube core socket skeleton, promptly an end of body is a socket 14, and the other end of body is a bellmouth 13.
The 5th step support outer moulding board: the body outer moulding board is fixed on above the body bellmouth platform;
The 6th step concrete is built: with the concreting that stirs in the body mould;
Moulding is smash in the shake of the 7th step: moulding is smash in shake in order, and concrete is smash moulding by process engineering requirement shake;
The 8th step stretch-draw steel strand are also used the ground tackle anchoring: when build concrete set strength in the body mould reach its standard 70% the time, be inserted in steel strand in the ground tackle hole with penetrating two ends in the oblique and hoop bellows, make it to produce centripetal-stress or longitudinal prestressing by technological requirement stretch-draw;
The grouting of the 9th step is solidified: after the power value of stretch-draw steel strand generation reaches requirement, with solidifying in the high-grade cement injection bobbin;
The form removal maintenance of the tenth step: when the high-grade cement intensity in injecting bellows reaches 95%, the template of dismantling and maintenance;
The 11 step displacement lifting: supporting the body well lifting that is shifted;
The 12 step body connects: with the steel strand in the attachment hole between body 11 body is coupled together;
The 13 step anchor grouting: will injecting high-grade cement in the attachment hole 11 again after the steel strand tension anchoring that connects body.
Claims (10)
1, a kind of large caliber oblique stress high strength water transport pipe, comprise concrete tube body (1) and be arranged in the body (1) by vertical muscle (2) and encircle the cylindrical skeleton that muscle (3) is made, it is characterized in that described cylindrical skeleton is by nexine skeleton (6), middle level skeleton (5) and outer skeleton (4) constitute, on nexine skeleton (6) and middle level skeleton (5), evenly be fixed with respectively with the skeleton medial axis and be vertical twisted state setting and the opposite oblique bobbin (7 of twisted direction, 8), oblique bobbin (7,8) be provided with at body (1) two ends and produced prestressed steel strand (10) through stretch-draw by what ground tackle was fixed, be the evenly distributed alternate circular-arc bobbin (9) that has around the home in outer skeleton (4) both sides, be provided with in the circular-arc bobbin (9) and produced prestressed steel strand (10) through stretch-draw by ground tackle (15) anchoring of body both sides.
2, a kind of large caliber oblique stress high strength water transport pipe according to claim 1, it is characterized in that intersecting circular-arc bobbin (9) is arranged around the home, be provided with in the circular-arc bobbin (9) and produced prestressed steel strand (10) through stretch-draw by ground tackle (15) anchoring of body both sides in outer skeleton (4) bilateral symmetry.
3, a kind of large caliber oblique stress high strength water transport pipe according to claim 1 and 2, it is characterized in that described oblique bobbin (7) can be to be uniformly arranged and fixed is arranged on the inboard or the outside of nexine skeleton (6), also can be evenly inside and outside transpostion interval and arrange the interior outside that is fixedly installed on nexine skeleton (6).
4, according to claim 1 or 2 or described a kind of large caliber oblique stress high strength water transport pipe, it is characterized in that described oblique bobbin (8) can be to be uniformly arranged and fixed is arranged on the inboard or the outside of middle level skeleton (5), also can be evenly inside and outside transpostion interval and arrange the interior outside that is fixedly installed on middle level skeleton (5).
5, a kind of large caliber oblique stress high strength water transport pipe according to claim 1 and 2, it is characterized in that described circular-arc bobbin (9) can be to be uniformly arranged and fixed is arranged on the inboard or the outside of outer skeleton (4), also can be even transpostion interval and arrange the interior outside that is fixedly installed on outer skeleton (4).
6, a kind of large caliber oblique stress high strength water transport pipe according to claim 1 and 2 is characterized in that evenly being provided with 4-24 attachment hole (11) on body (1), and attachment hole is provided with the steel strand that are used for connecting between body in (11).
7, a kind of large caliber oblique stress high strength water transport pipe according to claim 1 and 2, an end that it is characterized in that described body (1) is convex socket (14), the other end of body (1) is the concavity bellmouth, is respectively arranged with the spill annular groove (12) that has seal ring in socket (14) and the bellmouth (13).
8, a kind of large caliber oblique stress high strength water transport pipe according to claim 1 and 2, the internal diameter that it is characterized in that described body (1) is a 3-7 rice.
9, a kind of large caliber oblique stress high strength water transport pipe according to claim 3, the internal diameter that it is characterized in that described body (1) is a 3-7 rice.
10, a kind of large caliber oblique stress high strength water transport pipe preparation process according to claim 1 is characterized in that body adopts vertical making moulding process:
The making of first step body bellmouth circular platform: with large size machine tool processing body bellmouth template, the bellmouth template is fixed on the circular platform, the segmentation of body bellmouth platform is arranged on the blinding layer of accomplishing fluently behind the fluting;
The second step support inner formword: the body inner formword is fixed on the circular platform;
The 3rd step carcasing: utilize nonprestressed reinforcement as vertical muscle (2) and encircle muscle (3) be made into respectively in, in, outer three layers of drum shape frame;
The 4th step is bobbin fixedly: nexine skeleton (6) is enclosed within on the inner formword, and oblique bobbin (7) evenly distributes; Middle level skeleton (5) is enclosed within the outside of nexine skeleton (6), and oblique bobbin (8) evenly distributes; Even distribution circle arcuation bobbin (9) is gone up at outer skeleton (4) in the outside that outer skeleton (4) is enclosed within middle level skeleton (5), and prestress wire is penetrated respectively in oblique, the circular-arc bobbin; The bobbin (7,8) that is installed with oblique prestress wire is fixed in respectively on nexine and the middle level cylindrical skeleton (6,5) equably; The bobbin (9) that is installed with circular-arc prestress wire evenly is fixed on the outer cylinder frame (4), and its two ends are individually fixed in the anchor hole of body both sides; Three layers of skeleton are nested together, and skeleton one distal process of diameter minimum is gone out, make it form tube core socket skeleton, promptly an end of body is socket (14), and the other end of body is bellmouth (13);
The 5th step support outer moulding board: the body outer moulding board is fixed on above the body bellmouth platform;
The 6th step concrete is built: with the concreting that stirs in the body mould;
Moulding is smash in the shake of the 7th step: moulding is smash in shake in order, and concrete is smash moulding by process engineering requirement shake;
The 8th step stretch-draw steel strand are also used the ground tackle anchoring: when build concrete set strength in the body mould reach its standard 70% the time, be inserted in steel strand in the ground tackle hole with penetrating two ends in the oblique and hoop bellows, make it to produce centripetal-stress or longitudinal prestressing by technological requirement stretch-draw;
The grouting of the 9th step is solidified: after the power value of stretch-draw steel strand generation reaches requirement, with solidifying in the high-grade cement injection bobbin;
The form removal maintenance of the tenth step: when the high-grade cement intensity in injecting bellows reaches 95%, the template of dismantling and maintenance;
The 11 step displacement lifting: supporting the body well lifting that is shifted;
The 12 step body connects: with the steel strand in the attachment hole between body (11) body is coupled together;
The 13 step anchor grouting: will injecting high-grade cement in the attachment hole (11) again after the steel strand tension anchoring that connects body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100123360A CN1323253C (en) | 2005-01-28 | 2005-01-28 | Large caliber oblique stress high strength water transport pipe and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100123360A CN1323253C (en) | 2005-01-28 | 2005-01-28 | Large caliber oblique stress high strength water transport pipe and its preparing process |
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| Publication Number | Publication Date |
|---|---|
| CN1648505A CN1648505A (en) | 2005-08-03 |
| CN1323253C true CN1323253C (en) | 2007-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100123360A Expired - Fee Related CN1323253C (en) | 2005-01-28 | 2005-01-28 | Large caliber oblique stress high strength water transport pipe and its preparing process |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1811253B (en) * | 2006-02-24 | 2010-05-12 | 衡水长江预应力有限公司 | Large flow centripetal-stress sewage-treating pipeline and its production process |
| CN1811252B (en) * | 2006-02-24 | 2010-10-06 | 衡水长江预应力有限公司 | Super large flow pre-stressed water-saving pipeline and its production process |
| CN105196412B (en) * | 2015-09-22 | 2017-06-20 | 中国石油天然气集团公司 | A kind of concrete tube coupling pours mould |
| CN105855818A (en) * | 2016-04-01 | 2016-08-17 | 河北通涛管业有限公司 | Manufacturing process for ultra-large-aperture HDPE winding structure wall tube roller mold |
| CN109736351B (en) * | 2019-02-22 | 2021-04-30 | 中煤科工集团西安研究院有限公司 | Construction method for adapting large water pipeline to coal mine mining collapse deformation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2469291Y (en) * | 2001-04-13 | 2002-01-02 | 衡水泰昌预应力有限公司 | Large diameter prestress concrete water pipe |
| CN1380171A (en) * | 2001-04-13 | 2002-11-20 | 衡水泰昌预应力有限公司 | Large-aperture prestressed concrete pipe and its preparation process |
| CN1483562A (en) * | 2002-09-21 | 2004-03-24 | 厦门千秋业水泥制品有限公司 | Technology for producing reinforced concrete drain-pipe |
| CN2767798Y (en) * | 2005-01-28 | 2006-03-29 | 衡水长江预应力有限公司 | Heavy caliber oblique stress high-strength water supply pipe |
-
2005
- 2005-01-28 CN CNB2005100123360A patent/CN1323253C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2469291Y (en) * | 2001-04-13 | 2002-01-02 | 衡水泰昌预应力有限公司 | Large diameter prestress concrete water pipe |
| CN1380171A (en) * | 2001-04-13 | 2002-11-20 | 衡水泰昌预应力有限公司 | Large-aperture prestressed concrete pipe and its preparation process |
| CN1483562A (en) * | 2002-09-21 | 2004-03-24 | 厦门千秋业水泥制品有限公司 | Technology for producing reinforced concrete drain-pipe |
| CN2767798Y (en) * | 2005-01-28 | 2006-03-29 | 衡水长江预应力有限公司 | Heavy caliber oblique stress high-strength water supply pipe |
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| CN1648505A (en) | 2005-08-03 |
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Owner name: HENGSHUI FUZHONGDA PIPE CO., LTD. Free format text: FORMER OWNER: CHANGJIANG PRESTRESS CO., LTD., HENGSHUI Effective date: 20131212 |
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Effective date of registration: 20131212 Address after: Park Zhao circle of circular economy 053000 Hengshui city in Hebei province (North Taocheng District Park Road) Patentee after: Hengshui Zhongda Pipeline Company Limited Address before: 053000 No. 111 middle Daqing Road, Hebei, Hengshui Patentee before: Changjiang Prestress Co., Ltd., Hengshui |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070627 Termination date: 20180128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |