1、Designation: F1741 08 (Reapproved 2016)Standard Practice forInstallation of Machine Spiral Wound Poly (Vinyl Chloride)(PVC) Liner Pipe for Rehabilitation of Existing Sewers andConduits1This standard is issued under the fixed designation F1741; the number immediately following the designation indicat
2、es the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This practice describes the procedures for t
3、he rehabili-tation of sewer lines and conduits for existing pipelines 6 to180 in. in diameter by the insertion of a machine-madefield-fabricated spiral wound liner pipe into the existingpipeline using a winding machine which remains stationary inthe insertion pit or, alternatively, which travels alo
4、ng theinterior of the existing pipeline. These rehabilitation processescan be used in a variety of gravity applications such as sanitarysewers, storm sewers, culverts, and process piping.1.1.1 When using stationary installation equipment for ex-isting pipelines 6 to 48 in., after insertion, the spir
5、al woundliner pipe is expanded until it presses against the interiorsurface of the existing pipeline. Alternatively, for existingpipelines 6 to 108 in. in diameter, the spiral wound liner pipeis inserted as a fixed diameter into the existing pipeline and isnot expanded, and the annular space between
6、 the spiral woundliner pipe and the existing pipe is grouted.1.1.2 When using the traveling installation equipment forexisting pipelines 6 to 180 in. the spiral wound liner pipe isinstalled in contact with the interior surface of the existingpipeline to form a close fit liner, except in the corners
7、ofrectangular pipes or where obstructions or offsets occur.Alternatively, for existing pipelines 6 to 180 in. in diameter andfor similar sized existing non circular pipelines such as archedor oval or rectangular shapes, the spiral wound liner is installedas a fixed diameter into the exiting pipeline
8、 to form a non-closefit liner and the annular space between the spiral wound linerpipe and the existing pipe is grouted.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information o
9、nlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limit
10、ations prior to use.1.3.1 Particular attention is drawn to those safety regula-tions and requirements involving entering into and working inconfined spaces.2. Referenced Documents2.1 ASTM Standards:2C39/C39M Test Method for Compressive Strength of Cylin-drical Concrete SpecimensC109/C109M Test Metho
11、d for Compressive Strength ofHydraulic Cement Mortars (Using 2-in. or 50-mm CubeSpecimens)C495 Test Method for Compressive Strength of LightweightInsulating ConcreteD883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsF412 Terminology Relating to Plastic P
12、iping SystemsF1417 Practice for Installation Acceptance of Plastic Non-pressure Sewer Lines Using Low-Pressure AirF1697 Specification for Poly(Vinyl Chloride) (PVC) ProfileStrip for Machine Spiral-Wound Liner Pipe Rehabilitationof Existing Sewers and Conduit2.2 Uni-Bell Standard:UNI-B-5-89 Recommend
13、ed Practice for the Installation ofPVC Sewer Pipe33. Terminology3.1 GeneralDefinitions are in accordance with Terminolo-gies D883 and F412. Abbreviations are in accordance withTerminology D1600, unless otherwise indicated.1This practice is under the jurisdiction of ASTM Committee F17 on PlasticPipin
14、g Systems and is the direct responsibility of Subcommittee F17.67 onTrenchless Plastic Pipeline Technology.Current edition approved May 1, 2016. Published May 2016. Originallyapproved in 1996. Last previous edition approved in 2008 as F174108. DOI:10.1520/F1741-08R16.2For referenced ASTM standards,
15、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 Uni-Bell, 2655 Villa Creek Drive, Suite 155, Dallas TX 75234.*A Summary of Ch
16、anges section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.2 Definitions of Terms Specific to This Standard:3.2.1 extruded PVC profile stripa product available invarious widths, consisting of a
17、smooth inside surface and aribbed outer surface with mechanically locked male and femaleedges which are self interlocking, or separate locking stripswhich serve the same purpose Type A and Type B are differentprofiles and are installed by different installation methods. SeeFig. 1 and Table 1 for Typ
18、e A and Fig. 2 and Table 2 for TypeB. See Fig. 1 and Fig. 3 for installation method for Type A andFig. 2 and Fig. 4 for installation method for Type B.3.2.2 insertion pointan existing manhole, existing accessshaft, or excavated pit that serves as the point where a windingmachine field fabricates the
19、 spiral wound liner pipe andsimultaneously inserts the spiral wound liner pipe into theexisting pipeline.3.2.3 non-circular pipearched, oval or rectangular or acombination thereof.3.2.4 production runa continuous extrusion of a givenprofile type.3.2.5 spiral wound liner pipea product field fabricate
20、dfrom extruded PVC profile strip to a round shape, or noncir-cular shape, such as arched or oval or rectangular. (See Fig. 5.)3.2.6 steel reinforcement a shaped steel strip or clipinserted into the inside of the PVC profile to provide additionalreinforcement and stiffening. (See Fig. 3 and Fig. 4.)3
21、.2.7 termination pointan existing manhole, existing ac-cess shaft, or an excavated pit that serves as the point of exit ofthe spiral wound liner pipe from the existing pipe.4. Significance and Use4.1 This practice is for use by designers and specifiers,regulatory agencies, owners, and inspection org
22、anizations whoare involved in the rehabilitation of non-pressure sewers andconduits. Modifications may be required for specific jobconditions.5. Materials5.1 The extruded profile strip used for the field fabricationof spiral wound liner pipe shall be in accordance withSpecification F1697.5.2 The pro
23、file strip should be coiled onto a reel in acontinuous length for storage and shipping to the job site.Handling and storage should be in accordance with themanufacturers published recommendations.5.3 The adhesive or sealants, or both, used with the maleand female mechanical locking elements should b
24、e compatiblewith the PVC compound and the spiral wound liner pipeprocess so as not to affect the properties of the spiral woundfinished liner pipe.5.4 The steel reinforcing strips shall be used to reinforce theextruded PVC profile strip, where the design conditions re-quires additional stiffness, su
25、ch as for non-circular shapedpipes.6. Installation Recommendations6.1 Cleaning and Inspection:6.1.1 Prior to entering access areas such as manholes andperforming inspection or cleaning operations, an evaluation ofthe atmosphere to determine the presence of toxic or flammablevapors or lack of oxygen
26、must be undertaken in accordancewith local, state, or federal safety regulations .6.1.2 Cleaning of PipelineInternal debris should be re-moved from the existing pipeline. Gravity pipes should becleaned with hydraulically powered equipment, high-velocityjet cleaners, or mechanically powered equipment
27、 in accordancewith NASSCO recommended specifications.6.1.3 Inspection of PipelinesInspection of pipelinesshould be performed by experienced personnel trained inlocating breaks, obstacles, and service connections by closed-circuit television or by direct visual inspection. The interior ofthe pipeline
28、 should be carefully inspected to determine thelocation of any conditions that may prevent proper installationof the spiral wound liner pipe, such as protruding service taps,collapsed or crushed pipe, out-of-roundness, significant linesags, and deflected joints. These conditions should be notedand c
29、orrected, if necessary, prior to installation.6.1.4 Line ObstructionsThe existing pipeline should beclear of obstructions that will prevent the proper insertion, andexpansion if required, of the spiral wound liner pipe. Obstruc-tions could include dropped or offset joints of more than12.5 % of insid
30、e pipe diameter, service connections thatNOTE 1For values of width, height, and waterway minimum wall, see Table 1.FIG. 1 Type A-Typical PVC Profile StripF1741 08 (2016)2protrude into the pipe more than 12.5 % of the inside pipediameter or 1-in. (25-mm), whichever is less; and otherobstructions in c
31、ross-sectional area of more than 16 % basedon the inside diameter of the existing pipe. If inspection revealsan obstruction that cannot be removed by conventionalequipment, then a point repair excavation should be made touncover and remove or repair the obstruction. The angle of anybend along the pi
32、peline that can be negotiated by the spiralwound liner pipe depends on a combination of factors such asthe condition of the existing pipe, the location of the bendwithin the pipeline, and whether there are multiple bends. Fora determination of whether a given bend can beaccommodated, or whether acce
33、ss will be required for termi-nation and start of a new insertion, consult the supplier of theliner material. Depending on the method of installation used,insertion and expansion, or fixed diameter, some changes inpipe size along the insertion length of the spiral wound linerpipe can be accommodated
34、, and it is recommended that thespiral wound liner pipe material supplier be contacted.6.2 BypassingThe spiral wound liner pipe process doesnot require a dry pipeline and can be installed with some flowin the existing pipe or lateral connections, or both. If necessary,the bypass should be made by pl
35、ugging the line at a pointupstream of the pipe to be reconstructed and pumping the flowto a downstream point or adjacent system. The pump andbypass lines should be of adequate capacity and size to handleany extreme flows expected during the installation period.6.2.1 Under certain conditions, part or
36、 all of the installationmay be carried out with some flow in the existing pipeline orservice connections, or both.6.3 Pipe Liner Fabrication and Insertion Using StationaryInstallation Equipment:TABLE 1 Type A Typical Profile Strip Moments of Inertia and Stiffness FactorsProfile TypeABMoment of Inert
37、ia, I Depth to Neutral Axis, y Minimum Height, H Profile Area Minimum Stiffness Factor, EICin.4/in. (mm4/m) in. (mm) in. (mm) in.2/in. (mm2/mm) in.3lbf/in.2(MPamm3)1 0.00047 ( 7.70) 0.077 (1.98) 0.216 ( 5.5) 0.118 (3.00) 188.0 ( 21.2 103)2 0.00140 ( 23.00) 0.130 (3.30) 0.314 ( 8.0) 0.146 (3.70) 561
38、( 63.4 103)3 0.00537 (88.00) 0.206 (5.24) 0.511 (13.0) 0.205 (5.20) 2148 (242.7 103)4 0.00386 ( 63.30) 0.200 (5.08) 0.480 (12.2) 0.125 (3.18) 1600.0 (180.8 103)5 0.00400 ( 65.50) 0.180 (4.57) 0.488 (12.4) 0.125 (3.18) 1600.0 (180.8 103)6 0.00400 ( 65.50) 0.180 (4.57) 0.488 (12.4) 0.125 (3.18) 1600.0
39、 (180.8 103)AOther profiles, possibly using supplementary stiffener elements, may be available. Consult the manufacturer.BThe spacing of the ribs may vary for each profile type.CStiffness factors listed are the minimum values that will be provided by the manufacturer for the given profile type.FIG.
40、2 Type B-Typical PVC Profile StripTABLE 2 Type B Typical Profile Strip Moments of Inertia and Stiffness FactorsProfile TypeMoment of Inertia, I Depth to Neutral Axis, y Minimum Height, H Profile Area Minimum Stiffness Factor, EIin.4/in. (mm4/m) in. (mm) in. (mm) in.2/in. (mm2/mm) in.3lbf/in.2(MPamm3
41、)1 0.00106 (17.43) . . 0.319 (8.10) 0.132 (3.36) 362.5 409552 0.00218 (35.80) 0.26 (6.56) 0.422 (10.71) 0.150 (3.80) 745.0 841273 0.00571 (93.58) 0.58 (14.67) 0.578 (14.67) 0.227 (5.76) 1946.3 2199004 0.01165 (190.92) 0.76 (19.35) 0.762 (19.35) 0.290 (7.36) 3971.0 4486565 0.04142 (678.68 ) 1.12 (28.
42、53) 1.123 (28.53) 0.463 (11.75) 14116.0 15949006 0.00444 (72.78) 0.56 (14.22) 0.560 (14.22) 0.187 (4.76) 1513.8 171042FIG. 3 Shaped Steel Reinforcing Strip Type AFIG. 4 Shaped Steel Reinforcing Strip Type BF1741 08 (2016)36.3.1 A winding machine should be placed in the insertionpit and oriented so t
43、hat the liner pipe can be spirally wound andinserted (rotated and pushed) directly into the existing pipeline.A reel of extruded PVC profile strip should be positioned nearthe insertion point. The initial winding process begins with theprofile strip being fed into the winding machine, forming thepro
44、file strip into the required spiral wound liner pipe diameter,which is simultaneously rotated and pushed along the existingpipeline for its full length to the termination point. As theprofile strip is formed into a spiral, wound liner pipe in thewinding machine, the required sealant or adhesive, or
45、bothunless already in place, shall be placed within the primary andsecondary locks of the locking configuration at the edge of theprofile strip, and wire is placed between the primary andsecondary locks of the locking configuration when the spiralwound liner pipe is to be expanded (see Fig. 6 and Fi
46、g. 7).6.3.2 When the spiral wound liner pipe is to be expanded asshown in Fig. 6, the end of the spiral wound liner pipe at thetermination point should be torsionally restrained. A specificlength of the inserted spiral wound liner pipe is released at thetermination point by pulling the wire out of t
47、he expandableinterlocked joint, thereby severing the secondary lock (see Fig.6), thus releasing the profile strip to slide freely along theprimary rock when a torque is applied to the inserted spiralwound liner pipe. The winding operation should berecommenced, thereby creating a torque which is appl
48、ied to thereleased end, thus causing a radial growth or expansion overthe released length of the spiral wound liner pipe. The initialradial growth should be permitted to continue until the releasedend of the spiral wound liner pipe is pressed against theexisting pipeline (see Fig. 6), thus halting r
49、adially growth andtorsionally restraining the spiral wound liner pipe. Subsequentsecondary lock release and winding should continue until thespiral wound liner pipe is pressed against the full length of theexisting pipe. The annular space between the expanded spiralwound liner pipe and the existing pipeline should be sealed atthe ends with a sealing material that is compatible with thespiral wound liner pipe material.6.4 Pipe Liner Fabrication Using Traveling InstallationEquipment:6.4.1 A traveling winding machine should be placed in theinsertion poi
