ASTM F585-2016 Standard Guide for Insertion of Flexible Polyethylene Pipe Into Existing Sewers《在现有下水道中插入挠性聚乙烯管的标准指南》.pdf

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1、Designation: F585 16Standard Guide forInsertion of Flexible Polyethylene Pipe Into Existing Sewers1This standard is issued under the fixed designation F585; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision.

2、 A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This guide describes design and selection con

3、siderationsand installation procedures for the rehabilitation of sanitary andstorm sewers by the insertion of solid wall or profile wall orcorrugated polyethylene pipe into an existing pipe and along itsexisting line and grade. The procedures in this guide areintended to minimize traffic disruption,

4、 surface damage, sur-face restoration and interruption of service.1.2 The polyethylene piping product manufacturer shouldbe consulted to determine the polyethylene piping productssuitability for insertion renewal as described in this guide.1.3 The values stated in inch-pound units are to be regarded

5、as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of

6、this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. See 6.1, 7.1, and8.1 for additional safety precautions.2. Referenced Documents2.1 ASTM Standards:2F412 Terminology Relating to Plastic Piping SystemsF1417 Prac

7、tice for Installation Acceptance of Plastic Non-pressure Sewer Lines Using Low-Pressure AirF1804 Practice for Determining Allowable Tensile Load forPolyethylene (PE) Gas Pipe During Pull-In InstallationF2620 Practice for Heat Fusion Joining of Polyethylene Pipeand Fittings2.2 Other Documents:3PPI Ma

8、terial Handling Guide3. Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nology F412, unless otherwise specified.4. Significance and Use4.1 The procedures described in this guide are intended as adesign and review aid for use by the design engineer inconjunction with manufacturers

9、recommendations for install-ing a polyethylene pipe using the insertion method.5. Design and Selection Considerations5.1 General Guidelines:5.1.1 Host Pipe Condition AssessmentPrior to the selec-tion of polyethylene pipe size and installation procedure,measures should be taken to determine in detail

10、 the conditionof the host (original) sewer piping. A detailed examinationshould determine if the host sewer piping is structurallysufficient, and that any joint offsets or other host pipe defectswill permit polyethylene pipe insertion.5.1.2 The presence of obstructions should be determined(see 6.3).

11、 Protrusions of lateral or service piping into the hostsewer pipe, root growths, sedimentation, mineral deposits, orany combination of such obstructions, may require remedialwork prior to inserting the polyethylene pipe.5.1.3 To ensure against interference during insertion, theminimum annular cleara

12、nce between the polyethylene pipe ODand the host pipe ID should be 10 % of the host pipe ID or 2in. (50 mm) whichever is less. Greater annular clearance isacceptable. Outside diameter information should be obtainedfrom the polyethylene pipe manufacturer.5.1.4 The number of insertion excavations shou

13、ld be kept toa minimum and should coincide with areas where problemshave been detected in the existing sewer (see Section 7).5.1.5 Solid wall or profile wall or corrugated polyethylenepipe may be assembled at the time of insertion using heatfusion in accordance with Practice F2620, integral bell and

14、1This guide is under the jurisdiction of ASTM Committee F17 on Plastic PipingSystems and is the direct responsibility of Subcommittee F17.62 on Sewer.Current edition approved Oct. 1, 2016. Published December 2016. Originallyapproved in 1978. Last previous edition approved in 2013 as F585 13. DOI:10.

15、1520/F0585-16.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Plastics Pipe Institute (PPI),

16、105 Decker Court, Suite 825,Irving, TX 75062, http:/www.plasticpipe.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accor

17、dance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organiziation Technical Barriers to Trade (TBT) Committee.1spigot joints, or mechanical co

18、nnections as appropriate for thepolyethylene piping product.5.1.6 In all cases, the hydraulic capacity of the pipelineshould be assessed by an engineer to insure the reduction inflow area from an inserted pipe or deterioration or deformation,or both, of the host pipe does not adversely impact thehyd

19、raulic capacity or flow characteristics of the storm orsanitary sewer.NOTE 1It should be noted, in many instances, the pipe beingretrofitted is not designed to flow at 100 percent capacity, which mayprovide additional options for downsizing of the inserted pipe.5.2 Ancillary materialsMechanical fast

20、eners, sealants,grouts and other materials that are or are likely to be exposedto sanitary sewage, sewage gases or other corrosive elementsof the sanitary sewer environment should be resistant todeleterious effects of the sanitary sewer environment. Sealants,grouts and other materials must be select

21、ed with the ability toadequately cure in underwater, sewage or other corrosiveenvironments.5.3 External LoadingAreas where the host pipe is or maybe structurally compromised, or where some or the entire hostpipe had been removed will subject the polyethylene pipe toexternal loads. Information about

22、the resistance of polyethyl-ene pipe (pipe stiffness (PS) or ring stiffness constant (RSC),and buckling resistance) to external hydrostatic and earth loadsshould be obtained from the pipe manufacturer, and is availablein some ASTM polyethylene pipe specifications. Design infor-mation about the exter

23、nal load collapse resistance of polyeth-ylene pipe is available in Handbooks and Technical Notespublished by the Plastics Pipe Institute.5.3.1 Hydraulic LoadsWhen the ground water level maybe above the polyethylene pipe, the ground water level and itsduration should be estimated by the design engine

24、er, and thepolyethylene pipe should be designed to withstand the esti-mated external hydrostatic pressure without collapsing.5.3.2 Filling the AnnulusFilling the annulus between thehost pipe and the polyethylene pipe with a cementitious groutor other structurally stable material increases the resist

25、ance ofthe polyethylene pipe to external hydrostatic or structural load,and may improve the overall external load capacity of the hostpipe. Flexible pipe such as polyethylene pipe relies in part onmaterials that surround the pipe for external structural loadresistance. Flexible pipe ring stiffness a

26、nd the stiffness ofmaterials surrounding the flexible pipe act together to supportexternal loads. Structurally stable fill materials are materialsthat remain in place and resist movement from the rise and fallof groundwater around the pipeline. Fill materials may be ableto penetrate into cracks and

27、voids in the host pipe, and incombination with the inserted polyethylene pipe provide partialstructural rehabilitation. Host pipe condition assessment per5.1.1 should identify if filling the annulus is needed forstructural reasons. Hydraulic load analysis per 5.3.1 shouldidentify if filling the annu

28、lus is needed for hydraulic loadresistance.5.3.3 Point Excavation EncasementAt all points wherethe polyethylene pipe has been exposed, such as at excavationsfor polyethylene pipe insertion, or for service connections, orexcavations at other points where structurally unsound hostpipe is removed, the

29、polyethylene pipe, fittings, and serviceconnections should be encased in embedment that providesstructural support for the polyethylene pipe. Polyethylene pipeembedment design information is available from organizationssuch as the Plastics Pipe Institute. If the annulus is not filled(5.3.2), stabili

30、zed embedment material should be used to sealthe ends of the excavation against embedment migration intothe annulus. Stabilized embedment material is at least 6 in.(150 mm) of concrete, or cement-stabilized sand, or otherstable high-density material as specified by the design engi-neer. Preparations

31、 for placing of the encasement materialinclude the removal of debris and soil along each side of thehost pipe down to the spring line. After the encasementmaterial has been placed and accepted by the design engineer,backfill is placed and compacted to the required finished gradein accordance with th

32、e design engineers specifications. Atservice connections, care should be taken to ensure compactionof earth beneath the lateral service pipe in order to reducesubsidence that can cause bending at the lateral connection.5.3.4 Host Pipe DeteriorationStructural deterioration ofthe host pipe may continu

33、e after the polyethylene pipe has beeninstalled. Uneven or concentrated point loading on the poly-ethylene pipe or subsidence of the soil above the host pipe mayoccur if the host pipe collapses or if large parts of the host pipefall into the annulus between the host pipe and the polyethylenepipe. Th

34、is can be avoided by filling the annular space betweenthe inside diameter of the host pipe and the outside diameter ofthe polyethylene pipe. See 5.3.2.5.4 Axial Bending:5.4.1 Solid wall polyethylene pipe is relatively flexible suchthat the barrel of the pipe may be curved during installation. Itwill

35、 accommodate reasonable irregularities in line and grade.Excessive pipe barrel bending during handling and installationthat may cause the pipe to kink should be avoided. Axial(longitudinal) bends induced during the insertion step, intransporting pipe lengths from assembly sites to job sites, orperma

36、nent bends to accommodate line or grade changes,should not be less than the minimum bending radius in Table1. The bending radius is the inside radius of curvature.5.4.2 Axial bending of bell and spigot joined or coupledprofile wall or corrugated polyethylene pipe is generallylimited by the allowable

37、 angular displacement of bell andspigot or spigot and coupling joints. The manufacturer shouldbe contacted for information.TABLE 1 Minimum Bending Radii for Solid Wall PipeDimension Ratio, DR Minimum Bending Radius9 to 13.5 25 x Pipe OD13.5 to 21 27 x Pipe OD21 to 26 34 x Pipe OD26 to 32.5 42 x Pipe

38、 OD32.5 52 x Pipe ODFitting, Flange or MJ Adapter inBendA100xPipeODABecause fittings, flange and MJ Adapter connections are rigid compared to thepipe, the minimum bend radius is 100 times the pipe OD when a fitting flange orMJ adapter is present in the bend. The bend radius should be limited to 100

39、x ODfor a distance of about 5 times the pipe OD on either side of the fitting, flange orMJ adapter location.F585 1625.5 Installation Force and Length:5.5.1 Butt fusion joined solid wall polyethylene pipes aretypically installed by pulling the polyethylene pipe into thehost pipe. The length of polyet

40、hylene pipe to be inserted bypulling in will seldom be limited by the strength of the pipeitself. Pulling load limitations will usually be in the loadcapacity of the winch and cable and the length of the pullingcable. Smaller diameter pipe 24 in. (610 mm) or less canusually be handled with winches h

41、aving about 12-tons-force(110-KN) pulling capacity. Higher capacity pulling equipment,or a combination of pulling and pushing may be applicable tolarger pipe, longer lengths, where the host pipe is in poorcondition, or where there are bends or offsets that restrict thepassage of the polyethylene pip

42、e being inserted.NOTE 2For pull in installation, Practice F1804 may be useful forestimating the allowable tensile load for solid wall pipe.5.5.2 Profile wall or corrugated pipe with bell and spigotjoints is inserted by pushing. Typically, the pushing distance islimited by the joints resistance to te

43、lescoping. Pipe pushingload information should be obtained from the manufacturer.6. Inspection and Cleaning6.1 Confined Space SafetyEntry manholes or the existingpipe are usually considered entry into a confined space.Observe appropriate confined space entry requirements inaccordance with local, sta

44、te and federal requirements.6.2 Preliminary InvestigationVisual inspection to deter-mine the condition of the host piping may be practical for largediameter pipes over short distances; however, closed-circuitTV inspection equipment is generally preferred to providedetails of problem areas, such as o

45、f offset joints, crushed walls,obstructions, and to locate service and other lateral connectionsand protrusions.6.3 Remove obstructions, debris, and protruding servicelines that interfere with inserting the polyethylene pipe.6.4 Before the insertion operation, it may be desirable topass a test-head

46、of the same diameter as the polyethylene pipethrough the host pipe to ensure free passage. Test-heads may bemade from a short section of the polyethylene pipe with pullingcables attached to both ends so that the test head may be pulledback out if blocked by an obstruction. After passing the testhead

47、 through the host pipe, the test head should be inspectedfor damage.7. Excavation7.1 Excavation SafetyObserve all local, state, or federalregulations for excavation safety together with other applicablelaws and ordinances covering public and private access, andthe protection and safety of the public

48、 and property.7.2 Insertion ExcavationsFor butt fused polyethylenepipes, the insertion excavation down to the springline of thehost pipe should have an entry slope grade of at least 212 to 1.The length of the level excavation should be at least 12 timesthe diameter of the polyethylene pipe being ins

49、erted. Theexcavation should be as narrow as possible, consistent with thediameter of the pipe, insitu soil, height of water table, andlength of the host sewer (see Fig. 1). For single joints beingpushed or jacked into position, the length and width of theexcavation should at least accommodate the pipe joint layinglength (typically 20 ft.) and jacking equipment if necessary,(see Fig. 2).7.3 Lateral Connection ExcavationsThese excavationsshould be located where the lateral pipe connection to the hostsewer can be exposed. These points are located during prelimi-nar