CN104482298A - 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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- CN104482298A CN104482298A CN201410705825.3A CN201410705825A CN104482298A CN 104482298 A CN104482298 A CN 104482298A CN 201410705825 A CN201410705825 A CN 201410705825A CN 104482298 A CN104482298 A CN 104482298A
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- Prior art keywords
- waste pipe
- pipe
- pipes
- waste
- drainage
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Classifications
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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
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, relate to a kind of HDPE steel plastic compount spiral winding waste pipe construction method of installation.
Background technique
The waste pipe applied in current Drainage System Outside Building mainly contains reinforced concrete pipe, pvc pipe, cast iron tube, Glass Steel Tube and HDPE steel plastic compount spiral winding waste pipe.Wherein, HDPE steel plastic compount spiral winding waste pipe is the energy-saving high-tech product of a kind of novel acid resistant alkali, anticorrosion, resistance to compression, wear-corrosion resistance, nontoxic, environmental protection, reach 50 years service life, therefore it is widely used in municipal blowdown, expressway, storm-water drainage, field irrigation, also can be used as buried cable pipe fitting.Waste pipe transportation loading and unloading is convenient, and construction simple and convenient, connection sealing is good, is the desirable substitute products of cement pipe, cast iron tube, Glass Steel Tube.
Connection between HDPE waste pipe adopts Electric thermal smelting belt or shrink belt to connect usually.Electric melting connection: utilize electric melting unit that waste pipe two ends are heated to melt temperature, pipe fitting is placed on the two ends of waste pipe, docked by waste pipe, Electric thermal smelting belt the same with mother metal on jointing ring, is heated to melt temperature, and pipe fitting is connected closely with joint.The disadvantage that Electric thermal smelting belt the connects jointing that is to expand with heat and contract with cold is crisp and connect and easily occur that crackle is insecure, easily occurs seepage.
In prior art, shrink belt interconnection technique is that shrink belt is wrapped in drain interface place, liquid gas grilled gun is utilized upwards to be heated by bottom circumferential weld, shrink belt is made to reach the object of contraction, thus two waste pipes are connected, its main shortcoming easily produces bubble and crackle under high temperature, water resistence is poor, and particularly alkaline-resisting water-based is not good enough, easily occurs seepage.
Summary of the invention
The present invention is to solve the above-mentioned technical problem that exists in prior art and make, its object is to the HDPE steel plastic compount spiral winding waste pipe construction method of installation providing a kind of zero seepage.
To achieve these goals, HDPE steel plastic compount spiral winding waste pipe construction method of installation of the present invention comprises: preparation of construction: inside and outside dirt and the foreign material of eliminating HDPE waste pipe and connection pipe fitting thereof, check the tolerance of drain connection, measure waste pipe and the temperature of pipe fitting being connected waste pipe, make it consistent with construction environment temperature; Cut the earth and slot: shoveling open channels is on the ground for placing described waste pipe; Lower pipe is installed: be put in above-mentioned groove by described waste pipe and groove maintenance level, adjusts the length of waste pipe, and its ends cutting is become perpendicular to the ground according to the distance of bilge well in groove or catch-basin; Waste pipe connects: utilize pipe fitting to adopt Electric thermal smelting belt and hot melt contraction bands composite joint mode that described waste pipe is connected into a waste pipe; To pour water experiment: waste pipe and catch-basin or bilge well joint preformed hole are carried out shutoff; Pour into water in the waste pipe connected, check whether the waste pipe connected leaks; Backfill: from pipeline bilateral symmetry is inserted in groove, coarse sand, stone fragment or original soil, fills up described raceway groove.
The present invention adopts Electric thermal smelting belt and shrink belt composite joint, both ensure that the intensity of connection, can realize again zero seepage of pipe-line system.
Accompanying drawing explanation
By reference to the content below in conjunction with the description of the drawings and claims, other object of the present invention and result will be understood and easy to understand more.In the accompanying drawings:
Fig. 1 shows the flow chart of HDPE steel plastic compount spiral winding waste pipe 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 waste pipe.
Embodiment
Come below with reference to accompanying drawings to be described in detail each embodiment of the present invention.
Fig. 1 shows HDPE steel of the present invention and moulds the flow chart meeting spiral winding waste pipe construction method of installation, and as shown in the figure, described method comprises the steps:
First, in the step s 100, preparation of construction, particularly, before HDPE steel plastic compount spiral winding waste pipe is installed, the tolerance that its outward appearance and joint coordinate is checked, eliminate the dirt inside and outside waste pipe and pipe fitting and foreign material, job site and the material storing place temperature difference larger time, should in installation before waste pipe and pipe fitting are placed certain hour at the scene, make the ambient temperature of its temperature approach construction.
After preparation of construction is good, in step s 110, fluting of cutting the earth, control substrate elevation, the surface dust of the above 0.2-0.3 rice of substrate elevation will be cleared up to designed elevation.If backbreak or disturbance occur in local, interchangeable fill out particle diameter 10-15mm prototype gradation sandstone or in, coarse sand tamping; When channel bottom is if any objects such as block stone, rubble, bricks, should roots out below designed elevation 0.2 meter, and mix prototype gradation sand material, surface layer spreads sand compacting; Rainy season construction, adopts the mode of " namely dig and namely fill out ", avoids groove open-assembly time long; Once there is bubble groove, water should be got rid of, the topsoil of substrate by maceration is removed, change back-up sand building stones or in, coarse sand, carry out based process, then the installation of lower pipe.
Place after the groove of waste pipe digs, in the step s 120, lower pipe is installed, the available artificial or hoist of lower pipe carries out, keep that pipe shaft is parallel with groove to be placed in groove, smooth and perpendicular to the ground to the adjustment of its end face according to the length of the distance adjustment waste pipe between bilge well in groove or catch-basin, said process can be cut with a chainsaw.
After waste pipe is placed into groove, in step s 130, which, the connection of waste pipe, Electric thermal smelting belt is adopted to be connected by adjacent drainage channel pipe with shrink belt composite joint mode, namely, utilize pipe fitting by adjacent two waste pipe hot-melt adhesive paste, around Electric thermal smelting belt between two connector positions formed, be heated to melt temperature, then between two joints, shrink belt is wound around, from centre to surrounding, heating makes contraction bands and waste pipe and pipe fitting combine closely, and wherein said pipe fitting is threeway, directly first-class, and connection procedure will describe in detail in the description of fig. 2 particularly.
After waste pipe connects, in step S140, the waste pipe connected is poured water experiment, prevents infiltration of leaking, particularly, by the shutoff of leaving a blank in advance of waste pipe and catch-basin or bilge well joint, separate by well spacing, sampling is chosen, the test of band well, water is poured into the waste pipe chosen of sampling, pipeline end backfill and without ponding in groove; Pipe ends closure plate bearing capacity should be not more than making a concerted effort of water pressure through adjusting, and except reserved turnover waste pipe, answers shutoff firm, must not seep water.
Pipe installing with lay after, in step S150, backfill, the foreign material in groove are cleaned out, and should first from the structure such as pipeline, inspection shaft bilateral symmetry is inserted, coarse sand, stone fragment or original soil, described raceway groove is filled up.Backfill in pipeline both sides and the above 0.5m in pipe top, must not containing large rubble, fragment of brick, frozen soil block and other the assorted hard object bodies of particle diameter.After pipe laying, immediately build high grade pavement or other require road surface.Backfill degree of compaction will meet following requirement: within the scope of the effective strut angle of pipeline backfill in, coarse sand, every 100m measures a degree of compaction, all pressure reality degree≤95; Between every two wells in pipeline both sides in backfill, coarse sand, stone fragment, maximum particle diameter be less than the grit of 40mm or satisfactory original soil, Ya Shi Du≤95; The above 500mm in pipe top, in backfill, coarse sand, stone fragment, maximum particle diameter is less than the grit of 40mm or satisfactory original soil, Ya Shi Du≤90; Pipe top 500-1000mm, backfill original soil, Ya Shi Du≤90.
Fig. 2 is the flow chart of Electric thermal smelting belt of the present invention and shrink belt composite joint HDPE steel-plastic composite pipe, and as shown in the figure, the method for Electric thermal smelting belt and shrink belt composite joint HDPE steel-plastic composite pipe comprises:
First in step s 200, be placed on by waste pipe on sleeper or supporting frame, overlapped by the center line of waste pipe with the center line of groove, the gradient of waste pipe is 0.8 ‰, the pipeline opening of adjacent two waste pipes is alignd, stretches out the length of 80-100mm respectively.
After waste pipe places according to above-mentioned requirements, in step S210, insert the mouth of pipe of two waste pipes by with the pipe fitting that waste pipe has an identical melt index, utilize electric melting unit that waste pipe two ends are heated to melt temperature, carry out waste pipe by the power of 4Mpa and be docked to pipe fitting two ends.
Two joints are formed after two waste pipes being docked to pipe fitting two ends, in step S220, the quality of joint after inspection hot melt, docking alignment tolerance is not more than 10% of waste pipe wall thickness, and is not more than 3mm, flange should be formed after melting connection, and flange shape size uniformity, pore-free, bubbling and crack, joint has along the level and smooth symmetrical flanging of tube coupling circumference, the degree of depth of flanging lowest part is not less than tube coupling outer surface, evens in-flanges out.
Then, in step S230, between two joints, Electric thermal smelting belt on ring, is heated to melt temperature, and Electric thermal smelting belt is connected closely with joint.
After treating that electric melting connection completes, in step S240, by shrink belt on ring between two joints, toward surrounding, shrink belt heating one is enclosed from middle, dab with have gentle hands flat, sturdy.
In order to ensure that shrink belt is closely pasted in drain interface place, preferably, heat one time according to from middle again toward surrounding, still pressure comforts an endless belt, and contraction bands and waste pipe are combined closely.
In addition, preferably, caliber >=Φ 500mm, in step S210, before pipe fitting inserts waste pipe, the port inner wall of adjacent two waste pipes is wound around one deck shrink belt, according in step S240, the shrink belt of inner side heating one is enclosed from middle toward surrounding, the thermal shrinkage of inwall takes up liner effect, and after step S240, forms inside and outside two-layer shrink belt, add the bearing capacity of joint, extend working life.
The present invention solves the crisp problem easily cracked of independent Electric thermal smelting belt interface by being wound around heat-shrinkable tube outward at Electric thermal smelting belt; by from central authorities toward surrounding heat hot contraction bands; solve the problem that shrink belt produces bubble; adopt Electric thermal smelting belt and shrink belt duplicate protection, make the joint life-span reach 50 years and improve water resistence.
Although disclosed content shows exemplary embodiment of the present invention above, it should be noted that under the prerequisite not deviating from the scope of the present invention that claim limits, can multiple change and amendment be carried out.Need not perform with any particular order according to the function of the claim to a method of inventive embodiments described herein, step and/or action.In addition, although element of the present invention can describe or requirement with individual form, also it is contemplated that multiple, is odd number unless explicitly limited.
Claims (6)
1. a HDPE steel plastic compount spiral winding waste pipe construction method of installation, comprises the steps:
Preparation of construction: inside and outside dirt and the foreign material of eliminating HDPE waste pipe and connection pipe fitting thereof, check the tolerance of drain connection, measures waste pipe and the temperature of pipe fitting being connected waste pipe, makes it consistent with construction environment temperature;
Cut the earth and slot: shoveling open channels is on the ground for placing described waste pipe;
Lower pipe is installed: be put in above-mentioned groove by described waste pipe and groove maintenance level, adjusts the length of waste pipe, and its ends cutting is become perpendicular to the ground according to the distance of bilge well in groove or catch-basin;
Waste pipe connects: utilize pipe fitting to adopt Electric thermal smelting belt and hot melt contraction bands composite joint mode that described waste pipe is connected into a waste pipe;
To pour water experiment: waste pipe and catch-basin or bilge well joint preformed hole are carried out shutoff; Pour into water in the waste pipe connected, check whether the waste pipe connected leaks;
Backfill: from pipeline bilateral symmetry is inserted in groove, coarse sand, stone fragment or original soil, fills up described raceway groove.
2. method of construction according to claim 1, wherein, the method that described waste pipe connects comprises:
Waste pipe is placed on sleeper or supporting frame according to status requirement and slope requirement;
Insert the mouth of pipe of adjacent two waste pipes by with the pipe fitting that waste pipe has an identical melt index, utilize electric melting unit that waste pipe two ends are heated to melt temperature, carry out waste pipe by the power of 4Mpa and be docked to connection pipe fitting two ends, form two joints;
The quality of joint after inspection hot melt, docking alignment tolerance is not more than 10% of waste pipe wall thickness, and be not more than 3mm, flange should be formed after melting connection, and flange shape size uniformity, pore-free, bubbling and crack, joint has along the level and smooth symmetrical flanging of tube coupling circumference, the degree of depth of flanging lowest part is not less than tube coupling outer surface, evens in-flanges out;
Between above-mentioned two joints, Electric thermal smelting belt on ring, is heated to melt temperature, Electric thermal smelting belt is connected closely with joint;
Shrink belt on ring between above-mentioned two joints, encloses shrink belt heating one toward surrounding from middle, dabs flat with have gentle hands, sturdy.
3. method of construction according to claim 2, wherein, described status requirement and slope requirement comprise: overlapped with the center line of groove by the center line of waste pipe, and the gradient of waste pipe is 0.8 ‰.
4. method of construction according to claim 2, wherein, described status requirement also comprises: the pipeline opening of adjacent two waste pipes alignd, stretch out the length of 80-100mm respectively.
5. method of construction according to claim 2, wherein, when the diameter of described waste pipe is not less than 500mm, before pipe fitting inserts adjacent two waste pipes, two waste pipe port inner walls are wound around one deck shrink belt respectively, toward surrounding, the shrink belt of inwall heating one are enclosed from middle.
6. method of construction according to claim 1, wherein, the position of described backfill and material and its compaction requirement as follows:
Within the scope of the effective strut angle of pipeline backfill in, coarse sand, every 100m measures a degree of compaction, all pressure reality degree≤95; Between every two wells in pipeline both sides in backfill, coarse sand, stone fragment, maximum particle diameter be less than the grit of 40mm or satisfactory original soil, Ya Shi Du≤95; The above 500mm in pipe top, in backfill, coarse sand, stone fragment, maximum particle diameter is less than the grit of 40mm or satisfactory original soil, Ya Shi Du≤90; Pipe top 500-1000mm, backfill original soil, Ya Shi Du≤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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| 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 true CN104482298A (en) | 2015-04-01 |
| CN104482298B CN104482298B (en) | 2017-01-18 |
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Cited By (7)
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| CN105782625A (en) * | 2016-05-10 | 2016-07-20 | 河北有容管业有限公司 | Sleeve electrofusion joint device and method of winding structure wall pipe |
| 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 |
| CN106969198A (en) * | 2017-05-24 | 2017-07-21 | 浙江明通建设工程有限公司 | Major diameter HDPE plastic-steel winding pipeline construction techniques |
| 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 |
| CN108692101A (en) * | 2018-07-20 | 2018-10-23 | 四川瑞通工程建设集团有限公司 | A kind of construction method of HDPE plastic-steel-wound drainage pipes |
| 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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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782625A (en) * | 2016-05-10 | 2016-07-20 | 河北有容管业有限公司 | Sleeve electrofusion joint device and method of winding structure wall pipe |
| 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 |
| CN106969198A (en) * | 2017-05-24 | 2017-07-21 | 浙江明通建设工程有限公司 | Major diameter HDPE plastic-steel winding pipeline construction techniques |
| 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 |
| CN108692101A (en) * | 2018-07-20 | 2018-10-23 | 四川瑞通工程建设集团有限公司 | A kind of construction method of HDPE plastic-steel-wound drainage pipes |
| 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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