CN105805414B - A kind of heavy caliber flexibility socket joint concrete pipe stirs mill take-up device and tenses construction method - Google Patents
A kind of heavy caliber flexibility socket joint concrete pipe stirs mill take-up device and tenses construction method Download PDFInfo
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- CN105805414B CN105805414B CN201610313552.7A CN201610313552A CN105805414B CN 105805414 B CN105805414 B CN 105805414B CN 201610313552 A CN201610313552 A CN 201610313552A CN 105805414 B CN105805414 B CN 105805414B
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- pipe
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- bellmouth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/09—Accessories therefor, e.g. anchors for bringing two tubular members closer to each other
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The field test of comb-- pipe and repairing-- down tube-- dig interfaces hole-- cleaning barrel of pipe, cushion rubber-- top is covered on the mouth of pipe-- cleaning rubber gasket-- socket, socket mouth-- inspection center line, elevation-- with stock rod check cushion rubber position-- lock tube, accelerate project progress, it is simple with " manually stirring grain immediately mouth method " technical operation, only needing two people that drawknot crossbeam is put into tube end can drawknot, jack efficiency manually back and forth need not be carried and bundled in groove improve 1/3rd than traditional " jack tension method ", shorten the installation period of pipeline, accelerate project progress.
Description
Technical field
It the utility model is related to the take-up device of heavy caliber flexibility cushion rubber concrete pipe bell socket and its use installation side
Method.It can guarantee that engineering construction quality and improve the installation rate of concrete pipe, improve mechanization of building operation degree, reduce artificial work
Intensity.
Background technology
Pipe of concrete is used to convey the fluids such as water, oil, gas.Pipe of concrete is divided into plain concrete pipe, ordinary reinforced concrete
Pipe, seif-citing rate concrete reinforced pipe and the class of prestressed concrete pipe four.By the difference of pipe of concrete internal diameter, minor diameter pipe can be divided into
（Below 400 millimeters of internal diameter）, middle diameter tube (400~1400 millimeters) and large diameter pipe (more than 1400 millimeters).Born by pipe
The difference of hydraulic pressure ability, can be divided into low-voltage tube and pressure pipe, and the operating pressure of pressure pipe typically has 0.4,0.6,0.8,1.0,1.2
MPa etc..Pipe of concrete, by the difference of joint for pipe pattern, can be divided into flat pipe, spigot-and-socket pipe and enterprise again compared with steel pipe
Mouth formula pipe.Its interface shape has cement mortar to smear band interface, ferro-cement smears band interface, cement mortar socket joint and rubber
Cushion rubber socket joint etc..
Socket joint method referred in pipeline engineering construction, a kind of technological means for being used when being continued between pore and pore.
In pipeline engineering construction, there are two kinds of unicellular plastics pipe and porous plastics pipe respectively using socket joint method, it is used
When socket joint method continues, unicellular plastics pipe requires that the bellmouth internal diameter of bell-and-spigot pipe coincide with socket external diameter；Porous plastics pipe external diameter is with connecing
The internal diameter matches mutually of head casing tube.
Socket type pipeline is formed by connecting by many pipeline sections, and one end of pipeline section is socket, and the other end is bellmouth, bellmouth port
Footpath partial enlargement, its internal diameter are also bigger than the external diameter of socket end, and installation connection is that the socket of pipeline section is inserted holding for another pipeline section
Intraoral, annular space is tamped with interface material between two mouthfuls, and interface material is generally available rubber ring, dilatancy or asbestos cement,
It in particular cases can also use blue or green lead joint mouth.
With the development of the social economy, the shortage of water resource, Heavy-calibre Prestressed Concrete pipeline is impervious, anti-with its
Folding endurance can be good, it is anticorrosive pollution-free, cheap the advantages that replace metal pipe material in Long-distance Water Transmission Pipeline water engineering
To extensive use, traditional portal frame jack tenses concrete pipe installation method, and mechanization degree is low, efficiency is low, hand labor intensity
Greatly, the needs of the construction of modern project can not be met.
The content of the invention
In order to solve traditional portal frame jack tense concrete pipe installation method mechanization degree is low, efficiency is low, artificial labor
The problem of fatigue resistance is big.The utility model provides a kind of efficient, quick, civilization installation heavy caliber concrete pipe installation method, from
And improve engineering good economic benefit and social benefit；According to " jack tenses interface method " principle, reference is manually turned a millstone and rolled up
The working forms of machine are raised, the artificial form for stirring mill is formed by simple modifications（It is attached to stir mill machining sketch chart）.By artificial push-jump
Mill is stirred to pull concrete pipe to install concrete pipe with steel wire rope.
To achieve these goals, the technical scheme is that：
Heavy caliber flexibility socket joint concrete pipe stirs mill take-up device, including support, it is characterized in that：Being provided with support to rotate
Wiring bar, wiring bar upper end is provided with rotating bar, and wiring bar bottom is provided with gag lever post, rope is carried on gag lever post.
Heavy caliber flexibility socket joint concrete pipe according to claim 1 stirs mill take-up device, it is characterized in that：Described wiring
Bar is movably mounted in rotation support, is rotated support and is fixedly installed at frame bottom, and described support is positive prismatic table shape, on support
Quadrangle be less than lower quadrangle, connected between upper quadrangle and lower quadrangle by four fix bars, frame bottom is provided with
Rectangle collet, rectangle collet are connected with the side of bottom four.
Heavy caliber flexibility socket joint concrete pipe stirs mill take-up device and tenses construction method, it is characterized in that：Comprise the following steps
（1）Comb：The field test and repairing of pipe；
（2）Dig interfaces hole：
Before Pipe installing, working pit is dug installed in interface in pipeline, is more than or equal to 300mm before bellmouth, after bellmouth
Grown more than bell of pipe inclined-plane, both sides are more than caliber, and depth is more than or equal to 200mm, makes the operational phase bell of pipe hanging；
Lifting pipes should then put chock, or the heap loose materials on lumps of wood position if desired for stacking below bottom, upper strata with
Lower floor's bell and spigot should be inverted, and the elastic materials such as twice straw mattress are padded between two layers of tubing, two layers of pipeline is separated and does not contact with each other, put
The position of straw mattress should be with the chock consistency from top to bottom under bottom pipe.Tubing stacks the number of plies such as following table：
（3）Down tube
Using special high-strength nylon hanging belt, in order to avoid injuring pipe shaft concrete, body center of gravity should be found out before lifting, does bid
Will should be such that tube coupling bellmouth meets to current direction to meet body lifting requirements, during down tube；
（4）Mounting interface
The bellmouth and socket of tubing to be cleaned out before installation, cushion rubber is also checked and cleared up, and then slings pipe,
The cushion rubber on socket end set, cushion rubber should be enclosed on the end of socket, answer even thickness along pipe ring and must not have twisted phenomena,
After work before installation is ready, so that it may sling tubing with single rope using suspender, by bell and spigot centering such as socket joint
Mouth centering；Cushion rubber is in the initial position of installation, then tenses the chain block that both sides obtain, the socket of tubing is slowly inserted and hold
Mouthful, now cushion rubber then rolls along the outer working face direction of bellmouth inner working face and socket, until tubing is installed in place, at cushion rubber
Yu Cheng, socket working face position such as cushion rubber, first three section concrete pipe is installed with jack tension method when starting point starts tubulature,
After three-joint pipe installation is in place, middle node pipe shaft section groove position backfill is to pipe shaft above 400mm and tamps, and the present apparatus is put
Put in tube hub line position, being fixed on rear side of the present apparatus with steel wire rope on mounted pipe, so stir mill and just install in place,
Jack can be replaced to carry out drawknot Pipe installing with this；
（5）Installation
Present apparatus overhanging cable crossbeam is caught on to the bellmouth of pipe to be installed, the fixture block side between crossbeam and concrete pipe
Wood, prevent crossbeam from destroying concrete pipe, manually push rotation rotating bar, slowly pull in tube socket in bellmouth, and at any time
Check that whether uniformly cushion rubber rolls into, adjust at any time,
During installation, top, pulling rate degree uniformly slowly, and should should have special messenger to check that cushion rubber rolls into situation, as found to roll into inequality
It is even, it should stop pushing up, draw, tap adjustment cushion rubber position with chisel, be further continued for pushing up after uniform, draw, cushion rubber is reached the pre- of bell and spigot
Positioning is put,
In installation process, pipe is sling when inserting with crane parallel groove, so that socket cushion rubber is accurately to entering in bellmouth,
Slightly from bottom land when slinging,
Its bellmouth inner working face of the installing pipe period of the day from 11 p.m. to 1 a.m, the outer working face of socket clean up, and the cushion rubber being enclosed on socket is straight, nothing
Distort flop phenomenon.
The beneficial effects of the utility model are：
1 accelerates project progress
It is simple with " manually stirring grain immediately mouth method " technical operation, it is only necessary to which that drawknot crossbeam is put into tube end by two people
Can drawknot, it is not necessary to manually back and forth carry and bundle jack efficiency in groove and improve three than traditional " jack tension method "
/ mono-, the installation period of pipeline is shortened, accelerates project progress.
2 save recruitment
With " manually stirring grain immediately mouth method " crane lifting drawknot, machine is improved than traditional " portal frame jack tension method "
Tool degree, drawknot only need 3-4 people to promote to stir that grain is tight, so as to reduce the reciprocal operation for carrying jack and portal frame
Recruitment, and reduce labor intensity, that is, improve civilized construction degree reduces recruitment again.
3 improve construction quality
Compared with " manually stirring grain immediately mouth method " than traditional " portal frame jack tension method ", the layback of concrete duct two
When tight, stress and uniform force, both sides cushion rubber roll uniformity, substantially increase interface installation quality simultaneously for both sides, ensure
The total quality of Pipe installing.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the operation principle structural representation of the present invention；
Fig. 3 is the structural representation of pipe canal digging of the present invention；
Fig. 4 is the structural representation that pipe lifts in the present invention；
Fig. 5 is the structural representation of bell and spigot centering in the present invention；
Fig. 6 is the structural representation that bell and spigot is installed in place in the present invention；
Fig. 7 is the structural representation of pipeline installation in the present invention.
In accompanying drawing
1st, wiring bar；2nd, rotating bar；3rd, rope；4th, support；5th, gag lever post；6th, support is rotated；7th, base.
Embodiment
1st, installation procedure
The field test of comb-- pipe and repairing-- down tube-- dig interfaces hole-- cleaning barrel of pipe, pipe
Cushion rubber-- is covered on mouth-- cleaning rubber gasket-- socket and pushes up, socket mouth-- and check center line, elevation that-- with stock rod checks glue
Enclose position-- lock tube
2nd, the inspection repairing of the mixed mud pipe before down tube
2.1st, live tubing must carry out appearance test and have its quality of product certificate, quality certificate to meet enterprise
And the technical requirements of relevant national standard.
2.2nd, the inside and outside wall of body should be smooth, and outward appearance no significant defect is that 250g gently hammers check protection layer hollowing situation into shape with weight.
2.3 bell and spigots should not have that crackle and its working face of breach are smooth, and local camber is no more than with dipstick metering
2mm。
2.4 discovery defects will ask supplier to be repaired in time, and method for repairing and mending determines according to actual conditions.
The inspection of 3 rubber rings
3.1 all cushion rubbers should meet national standard, and cushion rubber should prevent direct sunlight, drench with rain snow during transport preserves
Lid, forbid to contact with grease type, acid-base class chemicals and other materials for being harmful to cushion rubber.
3.2 cushion rubbers should be wiped clean before, must not use the cushion rubber of adfreezing, cushion rubber typically preserves more than 5 DEG C, such as 5
When being preserved below DEG C, to avoid cushion rubber from being turned round, cushion rubber should be warming up to more than 15 DEG C before use.
3.3 cushion rubbers must be checked before by root specification and whether isolate, breakage, bubble, elephant skin, big overlap etc. it is scarce
Fall into.
3.4 storehouses are deposited, and should not be extruded.
4 channel excavation inspections
The width that 4.1 pipeline groove bottoms are excavated typically is calculated as follows：
B=D+2b
B, D, b are shown in bottom land furrow width table
Trough furrow width table（Unit mm）
| Ips | Pipe is outer through D | Operating surface width b | Excavate groove width B |
| 400 | 500 | 400 | 1300 |
| 500 | 600 | 500 | 1600 |
| 600 | 710 | 500 | 1710 |
| 800 | 920 | 500 | 1920 |
| 1000 | 1140 | 600 | 2340 |
| 1200 | 1360 | 600 | 2560 |
| 1400 | 1580 | 800 | 3180 |
The ground of 4.2 grooves should be straight, when bottom land is rock or hard ground, should be constructed by design code, designs nothing
During regulation construction, it is 200mm that the pipe lower part of the body, which should lay sand bedding course its thickness,
Never rigid foundation, stone is allowed directly to be contacted with pipe shaft.
5 dig joint working pit
Before 5.1 Pipe installings, with pipeline installation promptly and accurately dig working pit in interface, be more than before bellmouth etc.
Exceed bell of pipe inclined-plane after 300mm, bellmouth to grow, both sides are more than caliber, and depth is more than or equal to 200mm, ensures the operational phase
The bell of pipe is hanging.
5.2 lifting pipes should put chock, or the heap loose materials on lumps of wood position if desired for stacking, then bottom lower section, on
Layer should be inverted with lower floor bell and spigot, and the elastic material such as pad twice straw mattress, makes two layers of pipeline separate not phase mutual connection between two layers of tubing
Touch, the position for putting straw mattress should be with the chock consistency from top to bottom under bottom pipe.Tubing stacks the number of plies such as following table：
| Tubing specification（mm） | 400-600 | 700-800 | 900-1200 | 1400 |
| At most stack the number of plies | 5 | 4 | 3 | 2 |
6th, down tube
6.1st, using special high-strength nylon hanging belt, in order to avoid injure pipe shaft concrete.Body center of gravity should be found out before lifting, is done
Go out mark to meet body lifting requirements.During down tube tube coupling bellmouth should be made to meet to current direction.Such as pipe lifting schematic diagram Fig. 4 institutes
Show；
6.2 lifting pipes should put chock, or the heap loose materials on lumps of wood position if desired for stacking, then bottom lower section, on
Layer should be inverted with lower floor bell and spigot, and the elastic material such as pad twice straw mattress, makes two layers of pipeline separate not phase mutual connection between two layers of tubing
Touch, the position for putting straw mattress should be with the chock consistency from top to bottom under bottom pipe.Tubing stacks the number of plies such as following table：
| Tubing specification（mm） | 400-600 | 700-800 | 900-1200 | 1400 |
| At most stack the number of plies | 5 | 4 | 3 | 2 |
7 mounting interfaces
The bellmouth and socket of tubing are cleaned out before 7.1 installations, cushion rubber is also checked and cleared up, and then hangs pipe
Rise, the cushion rubber on socket end set, cushion rubber should be enclosed on the end of socket, answer even thickness along pipe ring and there must not be distortion existing
As.
7.2 installation before work it is ready after, so that it may tubing is sling with single rope using suspender, by bell and spigot centering；
7.3 cushion rubbers are in the initial position of installation, then tense the chain block that both sides obtain, the socket of tubing is slowly inserted
Enter bellmouth, now cushion rubber then rolls along the outer working face direction of bellmouth inner working face and socket, until tubing is installed in place, glue
Circle in hold, socket working face position；
First three section concrete pipe is installed with jack tension method when 7.4 starting points start tubulature, the installation of three-joint pipe is just
Behind position, middle node pipe shaft section groove position backfill is to pipe shaft above 400mm and tamps, and " will stir mill " and be placed on tube hub line position
Put, being fixed on rear side of " stirring mill " with steel wire rope on mounted pipe, so stir mill and just install in place, can be replaced down with this
Chain carries out drawknot Pipe installing.
The 7.5 overhanging cable crossbeams that " will stir mill " catch on the bellmouth of pipe to be installed, are pressed from both sides between crossbeam and concrete pipe
The block lumps of wood, prevent crossbeam destruction concrete pipe from manually push rotation " stirring mill " and slowly pulling in tube socket in bellmouth, and with
When check cushion rubber roll into whether uniformly, adjust at any time.
When the 7.6th, installing, top, pulling rate degree uniformly slowly, and should should have special messenger to check that cushion rubber rolls into situation, as found to roll into
It is uneven, it should stop pushing up, draw, tap adjustment cushion rubber position with chisel, be further continued for pushing up after uniform, draw, cushion rubber is reached bell and spigot
Precalculated position.
7.7th, in installation process, pipe is sling when inserting with crane parallel groove, so that socket cushion rubber is accurately to entering to hold
It is intraoral, slightly from bottom land when slinging.
7.8th, its bellmouth inner working face during installing pipe, the outer working face of socket clean up, the cushion rubber being enclosed on socket is straight,
Distortionless flop phenomenon.
8 check center line, elevation
8.1st, after each tube coupling installation, elevation and center line are controlled using spirit level and theodolite, after the installation of new pipe,
The installation quality of adjacent tubes is examined simultaneously, after meeting design requirement, you can carry out body axial lock and both sides are fixed.
Pipe shaft bottom after 8.2 installations should uniformly contact with basis, close with husky or earthen backfill in the range of 120 ° of duct bottom
Prevent stress concentration phenomenon below figure in fact.9th, cushion rubber position is checked with stock rod
9.1st, check whether the position of socket push-in bellmouth meets the requirements, stretched into stock rod in bell and spigot gap and check cushion rubber
Whether position is correct, and whether reviewer enters in pipe checks cushion rubber on bell and spigot working face.
10th, lock tube
10.1st, can be locked in after pipe laying to prevent the mouth of pipe movement of former section pipes of starting point installation with steel wire rope and jack
On pipe below.
Embodiment
The estimated gross investment of certain engineering (first phase) is 54,400,000 yuan.Engineering from certain eservoir diversion to certain city's indusqtrial water supply, if
The m3 of day water supply scale 70,000 is counted, the prestressed concrete pipe road that design caliber is DN1000, to ensure that engineering is smoothly implemented, is passed through
Repeatedly repeatedly practise and sum up this engineering method, and shown by engineer applied, the technology accelerates project progress, it is ensured that construction peace
Entirely, construction quality is improved, compared with traditional " portal frame jack tension method ", shortens 35 days installation periods, suppresses and once lead to
Cross, save fund input 13.5%, achieve obvious Technological Economy and social benefit.
Certain reservoir is to East Lake water supply project, more than 6,000 ten thousand yuan of Budgetary Estimates gross investment, 20.12 kilometers of pipeline installation, and day supplies
The side of outlet capacity 4.4 ten thousand, design caliber are DN1500, DN1200 reinforced concrete pipeline, by applying " manually stirring grain immediately mouth method "
Accelerate project progress, it is ensured that construction safety, construction quality is improved, compared with traditional " portal frame jack tension method ",
Shorten 30 days installation periods, suppress once by saving fund input 16.5%, achieving obvious Technological Economy and society imitates
Benefit.
Claims (1)
1. a kind of heavy caliber flexibility socket joint concrete pipe stirs mill take-up device and tenses construction method, including heavy caliber flexibility socket joint concrete pipe stirs
Take-up device is ground, it is characterized in that：Support（4）Inside it is provided with rotary wiring bar（1）, wiring bar（1）Upper end, which is provided with, to be turned
Lever（2）, wiring bar（1）Bottom is provided with gag lever post（5）, gag lever post（5）It is upper to carry rope（3）, described wiring bar（1）Can
Dynamic being arranged on rotates support（6）It is interior, rotate support（6）It is fixedly installed at support（4）Bottom, described support（4）For positive terrace with edge
Shape, support（4）On quadrangle be less than lower quadrangle, pass through four fix bars between upper quadrangle and lower quadrangle and connect, branch
Frame（4）Bottom is provided with rectangle collet, and rectangle collet is connected with the side of bottom four；
Construction method comprises the following steps：
（1）Comb：The field test and repairing of pipe；
（2）Dig interfaces hole：
Before Pipe installing, working pit is dug installed in interface in pipeline, 300mm is more than or equal to before bellmouth, is exceeded after bellmouth
Bell of pipe inclined-plane is grown, and both sides are more than caliber, and depth is more than or equal to 200mm, makes the operational phase bell of pipe hanging；
Lifting pipes then should put chock, or the heap loose materials on lumps of wood position, upper strata and lower floor if desired for stacking below bottom
Bell and spigot should be inverted, and the elastic materials such as twice straw mattress are padded between two layers of tubing, two layers of pipeline is separated and does not contact with each other, put straw mattress
Position should be with the chock consistency from top to bottom under bottom pipe；
（3）Down tube
Using special high-strength nylon hanging belt, in order to avoid injuring pipe shaft concrete, body center of gravity should be found out before lifting, make mark with
Meet body lifting requirements, tube coupling bellmouth should be made to meet to current direction during down tube；
（4）Mounting interface
The bellmouth and socket of tubing are cleaned out before installation, cushion rubber is also checked and cleared up, and then slings pipe, is being inserted
Mouth end puts cushion rubber, and cushion rubber should be enclosed on the end of socket, answer even thickness along pipe ring and must not have twisted phenomena,
After work before installation is ready, so that it may sling tubing with single rope using suspender, by bell and spigot centering such as bell and spigot pair
In；Cushion rubber is in the initial position of installation, then tenses the chain block that both sides obtain, the socket of tubing is slowly inserted bellmouth,
Now cushion rubber is then rolled along the outer working face direction of bellmouth inner working face and socket, and until tubing is installed in place, cushion rubber is in
Hold, socket working face position such as cushion rubber, when starting point starts tubulature with jack tension method install first three section concrete pipe, three
After saving pipe installation in place, middle node pipe shaft section groove position backfill is to pipe shaft above 400mm and tamps, and heavy caliber is flexible
Socket joint concrete pipe stirs mill take-up device and is placed on tube hub line position, and rear side is fixed on mounted pipe with steel wire rope
On, such heavy caliber flexibility socket joint concrete pipe stirs the installation of mill take-up device in place, and jack can be replaced to carry out drawknot pipeline peace with this
Fill；
（5）Installation
Present apparatus overhanging cable crossbeam is caught on to the bellmouth of pipe to be installed, the fixture block lumps of wood between crossbeam and concrete pipe,
Prevent crossbeam from destroying concrete pipe, manually push rotation rotating bar, slowly pull in tube socket in bellmouth, and check at any time
Uniformly whether cushion rubber roll into, and adjusts at any time,
During installation, top, pulling rate degree should uniformly slowly, and should have special messenger check cushion rubber roll into situation, as find roll into it is uneven, should
Stopping top, draw, tap adjustment cushion rubber position with chisel, be further continued for pushing up after uniform, draw, cushion rubber is reached the pre-determined bit of bell and spigot
Put,
In installation process, pipe is sling when inserting with crane parallel groove, so that socket cushion rubber is sling accurately to entering in bellmouth
When slightly from bottom land,
Its bellmouth inner working face of the installing pipe period of the day from 11 p.m. to 1 a.m, the outer working face of socket clean up, and the cushion rubber being enclosed on socket is straight, distortionless
Flop phenomenon.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610313552.7A CN105805414B (en) | 2016-05-12 | 2016-05-12 | A kind of heavy caliber flexibility socket joint concrete pipe stirs mill take-up device and tenses construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610313552.7A CN105805414B (en) | 2016-05-12 | 2016-05-12 | A kind of heavy caliber flexibility socket joint concrete pipe stirs mill take-up device and tenses construction method |
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| CN105805414B true CN105805414B (en) | 2017-12-29 |
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| CN107781550A (en) * | 2016-08-31 | 2018-03-09 | 天津市宝坻区新颐达模具厂 | Steel pipe socket joint disconnecting prevention structure |
| CN107035918A (en) * | 2017-06-07 | 2017-08-11 | 天津市源泉市政工程有限公司 | One kind feedwater pipe fitting engineering construction method |
| CN109027491A (en) * | 2017-06-12 | 2018-12-18 | 五冶集团上海有限公司 | A kind of glass reinforced plastic pipe pipe fitting connecting method |
| CN108612910B (en) * | 2018-07-23 | 2020-04-10 | 重庆建工市政交通工程有限责任公司 | Construction method for installing T-shaped nodular cast iron pipe |
| CN110242793B (en) * | 2019-04-25 | 2021-01-12 | 北京碧鑫水务有限公司 | Method for installing reinforced concrete pipeline |
| CN110285261B (en) * | 2019-07-23 | 2020-12-15 | 福建磊鑫(集团)有限公司 | Sewage pipeline laying process |
| CN117345945B (en) * | 2023-08-30 | 2025-01-17 | 中国化学工程第十四建设有限公司 | Onshore socket and spigot installation method for large diameter GRP seawater pipes |
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| CN101117203A (en) * | 2007-08-29 | 2008-02-06 | 泰安市泰山工程机械集团有限公司 | Novel pipe hanger equipped with auxiliary boom |
| CN203272790U (en) * | 2013-04-20 | 2013-11-06 | 大唐国际发电股份有限公司张家口发电厂 | Shroud ring tensioning device |
| CN203384489U (en) * | 2013-07-30 | 2014-01-08 | 中国人民解放军总后勤部油料研究所 | Pipeline wall pulley |
| JP6294627B2 (en) * | 2013-10-09 | 2018-03-14 | 株式会社クボタ | Pipe joint structure, seal member, joint state management method for pipe joint, and joint state management apparatus for pipe joint |
| CA2850647A1 (en) * | 2014-04-30 | 2015-10-30 | Kevin Adams | Apparatus for adjusting relative spacing of sections of pipe arranged in end to end relation |
| CN104100784A (en) * | 2014-05-20 | 2014-10-15 | 江苏柏诚工程股份有限公司 | Method of docking bonding of large-caliber UPVC (Ultra-high-density Polyvinyl Chloride) tubes |
| CN204569267U (en) * | 2015-04-10 | 2015-08-19 | 青岛港国际股份有限公司 | Equipment unit dismounting is with hanging pull tool |
| CN204750654U (en) * | 2015-06-05 | 2015-11-11 | 陕西北元化工集团有限公司 | Multi -functional device of binding |
| CN204749260U (en) * | 2015-06-30 | 2015-11-11 | 广船国际有限公司 | Interfacing apparatus for pipeline |
| CN205716008U (en) * | 2016-05-12 | 2016-11-23 | 山东枣建建设集团有限公司 | Heavy caliber flexibility socket joint concrete pipe stirs mill take-up device |
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Denomination of invention: A tensioning construction method of mixing and grinding tensioning device for large diameter flexible socket concrete pipe Effective date of registration: 20210929 Granted publication date: 20171229 Pledgee: Zaozhuang rural commercial bank, Limited by Share Ltd. Pledgor: SHANDONG ZAOJIAN CONSTRUCTION GROUP Co.,Ltd. Registration number: Y2021980010203 |
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Granted publication date: 20171229 Pledgee: Zaozhuang rural commercial bank, Limited by Share Ltd. Pledgor: SHANDONG ZAOJIAN CONSTRUCTION GROUP Co.,Ltd. Registration number: Y2021980010203 |