CN104482298B - HDPE (high-density polyethylene) steel-plastic composite spiral winding drainage pipe installation construction method - Google Patents
HDPE (high-density polyethylene) steel-plastic composite spiral winding drainage pipe installation construction method Download PDFInfo
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- CN104482298B CN104482298B CN201410705825.3A CN201410705825A CN104482298B CN 104482298 B CN104482298 B CN 104482298B CN 201410705825 A CN201410705825 A CN 201410705825A CN 104482298 B CN104482298 B CN 104482298B
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- drainpipe
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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
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
- F16L1/036—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides an HDPE (high-density polyethylene) steel-plastic composite spiral winding drainage pipe installation construction method which includes the steps: performing construction preparation: removing dirt and sundries inside and outside HDPE drainage pipes and pipes connected with the drainage pipes, checking tolerances of connectors of the drainage pipes, and measuring the temperature of the drainage pipes and the pipes; excavating a ditch for placing the drainage pipes on the ground; placing the drainage pipes into the ditch, and adjusting the lengths and end faces of the drainage pipes; connecting the drainage pipes into one drainage pipe by the aid of composite connection of the pipes, an electrical hot melt tape and a hot melting contraction tape; performing a water filling test for checking whether the connected drainage pipe leaks water or not; symmetrically and fully backfilling the ditch from two sides of a pipeline. The temperature of the drainage pipes and the pipes is consistent with that of a construction environment. By the aid of composite connection of the electrical hot melt tape and the hot melting contraction tape, connecting strength is ensured, and zero leakage of a pipeline system can be realized.
Description
Technical field
The present invention relates to engineering field, more specifically, it is related to a kind of hdpe steel plastic compount spiral winding drainpipe and installs
Construction method.
Background technology
In Drainage System Outside Building, the drainpipe of application mainly has reinforced concrete pipe, pvc pipe, cast iron pipe, fiberglass at present
Pipe and hdpe steel plastic compount spiral winding drainpipe.Wherein, hdpe steel plastic compount spiral winding drainpipe is a kind of new acidproof
Alkali, anti-corrosion, resistance to compression, erosion resistant, nontoxic, environmental protection energy-saving high-tech product, service life reaches 50 years, and therefore it is extensive
It is used in municipal blowdown, highway, rainwater discharge, field irrigation, also can be used as buried cable pipe fitting.Drainpipe transportation loading and unloading
Convenient, simple and convenient of constructing, connection sealing is good, is the preferable substitute products of pipe of cement, cast iron pipe, glass reinforced plastic pipe.
Connection between hdpe drainpipe generally adopts Electric thermal smelting belt or shrink belt to connect.Electric melting connection: utilize
Electric melting unit is heated to melt temperature drainpipe two ends, pipe fitting is placed on the two ends of drainpipe, drainpipe is docked, in interface
On ring, the Electric thermal smelting belt as mother metal, is heated to melt temperature, so that pipe fitting is closely connected with joint.Electric thermal smelting belt connects
The disadvantage interface that is to expand with heat and contract with cold crisp and connect that crackle easily insecure, seepage easily occurs.
In prior art, shrink belt interconnection technique is that shrink belt is wrapped at drain interface, is baked using liquefied gas
Rifle is heated upwards by bottom circumferential weld, makes shrink belt reach the purpose of contraction, thus two drainpipes are connected, its main lacking
Point is to be also easy to produce bubble and crackle under high temperature, and resistance to water is poor, particularly alkaline-resisting aqueous not good enough, seepage easily.
Content of the invention
The present invention is in order to solve above-mentioned technical problem present in prior art and to make, and its object is to provide one kind
The hdpe steel plastic compount spiral winding drainpipe construction method of installation of zero seepage.
To achieve these goals, hdpe steel plastic compount spiral winding drainpipe construction method of installation bag of the present invention
Include: preparation of construction: the inside and outside dirt of elimination hdpe drainpipe and its connection pipe fitting and debris, check the tolerance of drain connection,
The temperature of the pipe fitting of measurement drainpipe and connection drainpipe is so as to consistent with construction environment temperature；Cut the earth and slot: dig on the ground
Native open channels are used for placing described drainpipe；Down tube is installed: described drainpipe and groove kept being horizontally placed in above-mentioned groove,
Distance according to bilge well in groove or catch-basin adjusts the length of drainpipe, and its ends cutting is become perpendicular to the ground；
Drainpipe connects: shrinks band composite joint mode using pipe fitting using Electric thermal smelting belt and hot melt and described drainpipe is connected into one
Drainpipe；Pour water experiment: drainpipe is blocked with catch-basin or bilge well junction preformed hole,；The row connecting
Pour into water in water pipe, check the whether leak of the drainpipe that connects；Backfill: from pipeline both sides are symmetrically inserted in groove, slightly
Sand, stone fragment or original soil, described groove is filled up.
The present invention adopts Electric thermal smelting belt and shrink belt composite joint, both ensure that the intensity of connection, can achieve pipeline again
Zero seepage of system.
Brief description
By reference to the explanation below in conjunction with accompanying drawing, other purposes of the present invention and result will be more apparent and be easy to manage
Solution.In the accompanying drawings:
The flow chart that Fig. 1 shows hdpe steel plastic compount spiral winding drainpipe construction method of installation of the present invention；
Fig. 2 shows the flow chart that the present invention adopts Electric thermal smelting belt and heat-shrinkable tube composite joint hdpe drainpipe.
Specific embodiment
Come below with reference to accompanying drawings each embodiment of the present invention is described in detail.
Fig. 1 shows that the flow chart meeting spiral winding drainpipe construction method of installation moulded by hdpe steel of the present invention, as schemed institute
Show, methods described comprises the steps:
First, in step s100, preparation of construction, specifically, before hdpe steel plastic compount spiral winding drainpipe is installed, right
The tolerance of its outward appearance and joint cooperation is checked, eliminates the dirt inside and outside drainpipe and pipe fitting and debris, job site and material
When the material storing place temperature difference is larger, before installing, drainpipe and pipe fitting should be placed certain time at the scene so as to temperature is close applies
The environment temperature of work.
After preparation of construction is good, in step s110, fluting of cutting the earth, control substrate elevation, the above 0.2-0.3 of substrate elevation
The surface dust of rice will be cleared up to designed elevation.If backbreaking or disturbance, the interchangeable sand filling out particle diameter 10-15mm prototype gradation occur in local
Stone or in, coarse sand tamping；When channel bottom is if any objects such as block stone, rubble, bricks, 0.2 meter of below designed elevation should be rooted out,
And mix prototype gradation sand material, surface layer spreads sand compacting；Rainy season construction, by the way of " dig and fill out ", it is to avoid groove
Open-assembly time is long；Once occur bubble groove, water should be excluded, substrate is removed by the topsoil of maceration, change back-up sand building stones or
In, coarse sand, carry out based process, then down tube install.
After the groove of placement drainpipe digs, in step s120, down tube is installed, and down tube can use manually or crane enters
OK, pipe shaft to be kept and groove are placed in parallel in groove, are adjusted according to the distance between bilge well or catch-basin in groove
The length of entire row water pipe simultaneously adjusts smooth and perpendicular to the ground to its end face, can cut with a chainsaw and complete said process.
After drainpipe is placed into groove, in step s130, the connection of drainpipe, multiple using Electric thermal smelting belt and shrink belt
Close connected mode to be attached adjacent row water pipe, i.e. using pipe fitting by adjacent two drainpipe hot-melt adhesive paste, at two formed
Around Electric thermal smelting belt between connector position, it is heated to melt temperature, between two joints, be then wound around shrink belt, therefrom
Between so that contraction band is combined closely with drainpipe and pipe fitting to surrounding heating, wherein said pipe fitting is threeway, directly first-class, specifically
Connection procedure will describe in detail in the description of fig. 2.
After drainpipe connects, in step s140, experiment of pouring water is carried out to the drainpipe connecting, prevent leak from oozing
Water, specifically, the pre- closure of leaving a blank of drainpipe and catch-basin or bilge well junction is separated by well spacing, sampling is chosen, band
Well is tested, and water is poured into the drainpipe that sampling is chosen, no ponding in pipeline end backfill and groove；Pipe ends closure plate bearing capacity
Making a concerted effort of water pressure should be not more than through adjusting, in addition to reserved turnover drainpipe, should block firm, must not seep water.
After Pipe installing and laying finish, in step s150, backfill, the debris in groove are cleaned out, and should be first
From the structures such as pipeline, inspection shaft both sides are symmetrically inserted, coarse sand, stone fragment or original soil, described groove is filled up.Pipeline two
Backfill in side and the above 0.5m in pipe top, must not be containing the big rubble of particle diameter, fragment of brick, frozen soil block and other miscellaneous hard objects.Pipe
After road lays, build high grade pavement immediately or other require road surface.Backfill soil compactness will meet following requirements: pipeline is effective
In backfilling in the range of strut angle, coarse sand, every 100m measures a compactness, all compactnesss 95；Every two wells in pipeline both sides it
Between backfill in, coarse sand, stone fragment, maximum particle diameter be less than the grit of 40mm or satisfactory original soil, compactness 95；Pipe top with
Upper 500mm, in backfill, coarse sand, stone fragment, maximum particle diameter is less than the grit of 40mm or satisfactory original soil, compactness 90；
Pipe top 500-1000mm, backfills original soil, compactness 90.
The flow chart that Fig. 2 is Electric thermal smelting belt of the present invention and shrink belt composite joint hdpe steel-plastics composite pipe, as illustrated,
The method of Electric thermal smelting belt and shrink belt composite joint hdpe steel-plastics composite pipe includes:
First in step s 200, drainpipe is placed on sleeper or bracing frame, by the center line of drainpipe and groove
Center line overlap, the gradient of drainpipe is 0.8 ‰, and the pipeline opening alignment of two adjacent drainpipes stretches out 80 respectively
The length of 100mm.
After drainpipe places according to above-mentioned requirements, in step s210, will have identical melting with drainpipe and refer to
The pipe fitting of number inserts the mouth of pipe of two drainpipes, using electric melting unit, drainpipe two ends is heated to melt temperature, is entered with the power of 4mpa
Row drainpipe is docked to pipe fitting two ends.
Two drainpipes are docked to two joints of formation behind pipe fitting two ends, in step s220, check joint after hot melt
The quality at place, docking unfitness of butt joint is not more than the 10% of draining thickness of pipe wall, and no more than 3mm, should be formed convex after melting connection
Edge, and flange shape is uniform in size consistent, pore-free, bubbling and crack, joint has and smooths symmetrical turning up along tube coupling circumference
Side, the depth of flanging lowest part is not less than tube coupling outer surface, evens in-flanges out.
Then, in step s230, Electric thermal smelting belt on ring between two joints, it is heated to melt temperature, make electric heating
Molten band is closely connected with joint.
After electric melting connection completes, in step s240, by shrink belt on ring between two joints, from centre
Toward surrounding by shrink belt heating one circle, gently smoothed with hand, sturdy.
In order to ensure that shrink belt is closely pasted at drain interface it is preferable that heating toward surrounding according to from middle again
One time, still press and comfort an annulus, so that contraction band and drainpipe is combined closely.
Furthermore it is preferred that caliber >=φ 500mm, in step s210, before pipe fitting insertion drainpipe, adjacent two
One layer of shrink belt is wound around on the port inner wall of individual drainpipe, according in step s240, toward surrounding, the heat of inner side is received from middle
Contracting band heating one circle, the thermal contraction of inwall takes up liner effect, and after step s240, forms inside and outside two layers thermal contraction
Band, increased the bearing capacity of joint, extends service life.
The present invention solves the crisp easy generation of independent Electric thermal smelting belt interface by winding heat-shrinkable tube outside Electric thermal smelting belt and splits
The problem of line, by heating shrink belt from central authorities toward surrounding, solves the problems, such as that shrink belt produces bubble, using electric heating melting
Band and shrink belt duplicate protection, make the joint life-span be up to 50 years and improve resistance to water.
Although content disclosed above shows the exemplary embodiment of the present invention, it should be noted that without departing substantially from power
On the premise of profit requires the scope of the present invention limiting, may be many modifications and change.Real according to invention described herein
Function, step and/or the action of applying the claim to a method of example are not required to execute with any particular order.Although additionally, the present invention
Element with the description of individual form or can require, it is also contemplated that multiple, unless explicitly limited for odd number.
Claims (5)
1. a kind of hdpe steel plastic compount spiral winding drainpipe construction method of installation, comprises the steps:
Preparation of construction: the inside and outside dirt of elimination hdpe drainpipe and its connection pipe fitting and debris, check the tolerance of drain connection,
The temperature of the pipe fitting of measurement drainpipe and connection drainpipe is so as to consistent with construction environment temperature；
Cut the earth and slot: shoveling open channels are used for placing described drainpipe on the ground；
Down tube is installed: described drainpipe and groove is kept being horizontally placed in above-mentioned groove, according to bilge well in groove or rain
The distance of well adjusts the length of drainpipe, and its ends cutting is become perpendicular to the ground；
Drainpipe connects: shrinks band composite joint mode using pipe fitting using Electric thermal smelting belt and hot melt and connects into described drainpipe
A piece drainpipe；
Pour water experiment: drainpipe is blocked with catch-basin or bilge well junction preformed hole,；The drainpipe connecting
Inside pour into water, check the whether leak of the drainpipe that connects；
Backfill: from pipeline both sides are symmetrically inserted in groove, coarse sand, stone fragment or original soil, described groove is filled up,
Wherein, the method that described drainpipe connects includes:
Drainpipe is placed on sleeper or bracing frame according to status requirement and slope requirement；
The pipe fitting with drainpipe with identical melt index is inserted the mouth of pipe of adjacent two drainpipes, using electric melting unit draining
Pipe two ends are heated to melt temperature, carry out drainpipe with the power of 4mpa and are docked to connecting pipe two ends, form two joints；
The quality of joint after inspection hot melt, docking unfitness of butt joint is not more than the 10% of draining thickness of pipe wall, and no more than 3mm, hot melt
Docking should form flange after connecting, and flange shape is uniform in size consistent, pore-free, bubbling and crack, and joint has along tube coupling
Circumference smooths symmetrical flanging, and the depth of flanging lowest part is not less than tube coupling outer surface, evens in-flanges out；
Electric thermal smelting belt on ring between above-mentioned two joint, is heated to melt temperature, makes Electric thermal smelting belt close with joint
Connect；
Shrink belt heating one is enclosed toward surrounding, with hand gently by shrink belt on ring between above-mentioned two joint from middle
Smooth, sturdy.
2. construction method according to claim 1, wherein, described status requirement and slope requirement include: by drainpipe
Center line is overlapped with the center line of groove, and the gradient of drainpipe is 0.8 ‰.
3. construction method according to claim 1, wherein, described status requirement also includes: by two adjacent drainpipes
Pipeline opening alignment, stretch out the length of 80 100mm respectively.
4. construction method according to claim 1, wherein, when the diameter of described drainpipe is not less than 500mm, inserts in pipe fitting
Before entering two neighboring drainpipe, one layer of shrink belt is wound around on two drainpipe port inner walls respectively, from middle toward surrounding
Shrink belt heating one circle by inwall.
5. construction method according to claim 1, wherein, the position of described backfill and material and its compaction requirement are such as
Under:
In backfill in pipeline effective support angular region, coarse sand, every 100m measures a compactness, all compactnesss 95；Pipeline
In backfilling between every two wells in both sides, coarse sand, stone fragment, maximum particle diameter be less than the grit of 40mm or satisfactory original soil, compacting
Degree 95；The above 500mm in pipe top, in backfill, coarse sand, stone fragment, maximum particle diameter is less than the grit or satisfactory former of 40mm
Soil, compactness 90；Pipe top 500-1000mm, backfills original soil, compactness 90.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705825.3A CN104482298B (en) | 2014-07-14 | 2014-11-26 | HDPE (high-density polyethylene) steel-plastic composite spiral winding drainage pipe installation construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410334938 | 2014-07-14 | ||
| CN2014103349387 | 2014-07-14 | ||
| CN201410705825.3A CN104482298B (en) | 2014-07-14 | 2014-11-26 | HDPE (high-density polyethylene) steel-plastic composite spiral winding drainage pipe installation construction method |
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| CN104482298A CN104482298A (en) | 2015-04-01 |
| CN104482298B true CN104482298B (en) | 2017-01-18 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782625B (en) * | 2016-05-10 | 2018-10-02 | 河北有容管业有限公司 | The oversleeve electric smelting attachment device of winding structure pipe and connection method |
| CN106926470A (en) * | 2017-03-13 | 2017-07-07 | 神华集团有限责任公司 | Connection method and water-carriage system for HDPE pipelines |
| CN106969198B (en) * | 2017-05-24 | 2019-05-03 | 浙江明通建设工程有限公司 | Major diameter HDPE plastic-steel winding pipeline construction technique |
| 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 |
| CN107763306A (en) * | 2017-09-26 | 2018-03-06 | 安徽省中阳管业有限公司 | A kind of polyethylene winding structure pipe construction method |
| CN108692101B (en) * | 2018-07-20 | 2021-01-29 | 四川瑞通工程建设集团有限公司 | Construction method of HDPE plastic steel winding drain pipe |
| CN114059642A (en) * | 2021-11-25 | 2022-02-18 | 中铁建设集团华东工程有限公司 | Construction method for flexibly connecting HDPE (high-density polyethylene) drain pipe by ABS (acrylonitrile butadiene styrene) compression ring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2491683Y (en) * | 2000-08-22 | 2002-05-15 | 张义刚 | Heat contracting tubing |
| CN2682264Y (en) * | 2004-01-19 | 2005-03-02 | 金雪花 | Pipeline capable of being connected by thermal contraction mode |
| CN1779312A (en) * | 2004-11-17 | 2006-05-31 | 特变电工股份有限公司 | Plastic pipe joint and production thereof |
| CN102486246A (en) * | 2010-12-06 | 2012-06-06 | 上海伙隆实业有限公司 | Polyethylene pipeline hot-melt conjunction construction method |
| CN103883797A (en) * | 2014-03-26 | 2014-06-25 | 乌海市公路工程有限公司 | Construction method of steel wire mesh framework plastic composite pipe |
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Address after: 110179 Liaoning province Shenyang Hunnan voyage No. 3 West only information Park IT international 10 floor Applicant after: China Metallurgical transportation (Shenyang) Construction Engineering Co., Ltd. Applicant after: MCC COMMUNICATION CONSTRUCTION GROUP CO., LTD. Address before: 110179 Liaoning province Shenyang Hunnan voyage No. 3 West only information Park IT international 10 floor Applicant before: China Metallurgical transportation (Shenyang) Construction Engineering Co., Ltd. Applicant before: MCC Communication Engineering Technology Co., Ltd. |
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