1、Designation: F1741 08 (Reapproved 2016)F1741 18Standard 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
2、 indicates 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 procedur
3、es for the rehabilitation of sewer lines and conduits for existing pipelines 6 to 180 in.in diameter by the insertion of a machine-made field-fabricated spiral wound liner pipe into the existing pipeline using a windingmachine which remains stationary in the insertion pit or, alternatively, which tr
4、avels along the interior of the existing pipeline.These rehabilitation processes can be used in a variety of gravity applications such as sanitary sewers, storm sewers, culverts, andprocess piping.1.1.1 When using stationary installation equipment for existing pipelines 6 to 48 in., after insertion,
5、 the spiral wound liner pipeis expanded until it presses against the interior surface of the existing pipeline. Alternatively, for existing pipelines 6 to 108 in. indiameter, the spiral wound liner pipe is inserted as a fixed diameter into the existing pipeline and is not expanded, and the annularsp
6、ace between the spiral wound liner pipe and the existing pipe is grouted.1.1.2 When using the traveling installation equipment for existing pipelines 6 to 180 in. the spiral wound liner pipe is installedin contact with the interior surface of the existing pipeline to form a close fit liner, except i
7、n the corners of rectangular pipes orwhere obstructions or offsets occur. Alternatively, for existing pipelines 6 to 180 in. in diameter and for similar sized existing noncircular pipelines such as arched or oval or rectangular shapes, the spiral wound liner is installed as a fixed diameter into the
8、 exitingpipeline to form a non-close fit liner and the annular space between the spiral wound liner pipe and the existing pipe is grouted.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provide
9、d for information only and are not considered standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and
10、 determine theapplicability of regulatory limitations prior to use.1.3.1 Particular attention is drawn to those safety regulations and requirements involving entering into and working in confinedspaces.1.4 This international standard was developed in accordance with internationally recognized princi
11、ples on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C39/C39M Test Method for Compressiv
12、e Strength of Cylindrical Concrete SpecimensC109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube Specimens)C495 Test Method for Compressive Strength of Lightweight Insulating ConcreteD883 Terminology Relating to PlasticsD1600 Terminology for Abbrevia
13、ted Terms Relating to PlasticsF412 Terminology Relating to Plastic Piping Systems1 This practice is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.67 on Trenchless PlasticPipeline Technology.Current edition approved May 1,
14、2016April 1, 2018. Published May 2016July 2018. Originally approved in 1996. Last previous edition approved in 20082016 asF1741F174108(2016).08. DOI: 10.1520/F1741-08R16.10.1520/F1741-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceas
15、tm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becau
16、seit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appear
17、s at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1F1216 Practice for Rehabilitation of Existing Pipelines and Conduits by the Inversion and Curing of a Resin-Impregnated TubeF1417 Practice for Installation A
18、cceptance of Plastic Non-pressure Sewer Lines Using Low-Pressure AirF1697 Specification for Poly(Vinyl Chloride) (PVC) Profile Strip for Machine Spiral-Wound Liner Pipe Rehabilitation ofExisting Sewers and Conduit2.2 Uni-Bell Standard:UNI-B-5-89 Recommended Practice for the Installation of PVC Sewer
19、 Pipe33. Terminology3.1 GeneralDefinitions are in accordance with Terminologies D883 and F412. Abbreviations are in accordance withTerminology D1600, unless otherwise indicated.3.2 Definitions of Terms Specific to This Standard:3.2.1 extruded PVC profile stripa product available in various widths, c
20、onsisting of a smooth inside surface and a ribbed outersurface with mechanically locked male and female edges which are self interlocking, or separate locking strips which serve thesame purpose Type A and Type B are different profiles and are installed by different installation methods. See Fig. 1 a
21、nd Table 1for Type A and Fig. 2 and Table 2 for Type B. See Fig. 1 and Fig. 3 for installation method for Type A and Fig. 2 and Fig. 4 forinstallation method for Type B.3.2.2 insertion pointan existing manhole, existing access shaft, or excavated pit that serves as the point where a windingmachine f
22、ield fabricates the spiral wound liner pipe and simultaneously inserts the spiral wound liner pipe into the existing pipeline.3.2.3 non-circular pipearched, oval or rectangular or a combination thereof.3.2.4 production runa continuous extrusion of a given profile type.3.2.5 spiral wound liner pipea
23、product field fabricated from extruded PVC profile strip to a round shape, or noncircular shape,such as arched or oval or rectangular. (See Fig. 5.)3.2.6 steel reinforcement a shaped steel strip or clip inserted into the inside of the PVC profile to provide additionalreinforcement and stiffening. (S
24、ee Fig. 3 and Fig. 4.)3.2.7 termination pointan existing manhole, existing access shaft, or an excavated pit that serves as the point of exit of thespiral wound liner pipe from the existing pipe.4. Significance and Use4.1 This practice is for use by designers and specifiers, regulatory agencies, own
25、ers, and inspection organizations who areinvolved in the rehabilitation of non-pressure sewers and conduits. Modifications may be required for specific job conditions.5. Materials5.1 The extruded profile strip used for the field fabrication of spiral wound liner pipe shall be in accordance with Spec
26、ificationF1697.5.2 The profile strip should be coiled onto a reel in a continuous length for storage and shipping to the job site. Handling andstorage should be in accordance with the manufacturers published recommendations.5.3 The adhesive or sealants, or both, used with the male and female mechani
27、cal locking elements should be compatible withthe PVC compound and the spiral wound liner pipe process so as not to affect the properties of the spiral wound finished liner pipe.3 Available from Uni-Bell, 2655 Villa Creek Drive, Suite 155, Dallas TX 75234.NOTE 1For values of width, height, and water
28、way minimum wall, see Table 1.FIG. 1 Type A-Typical PVC Profile StripF1741 1825.4 The steel reinforcing strips shall be used to reinforce the extruded PVC profile strip, where the design conditions requiresadditional stiffness, such as for non-circular shaped pipes.6. Installation Recommendations6.1
29、 Cleaning and Inspection:6.1.1 Prior to entering access areas such as manholes and performing inspection or cleaning operations, an evaluation of theatmosphere to determine the presence of toxic or flammable vapors or lack of oxygen must be undertaken in accordance with local,state, or federal safet
30、y regulations .TABLE 1 Type A Typical Profile Strip Moments of Inertia and Stiffness FactorsProfile TypeAB Moment of Inertia, 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
31、.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 ( 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
32、) 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 (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.
33、CStiffness factors listed are the minimum values that will be provided by the manufacturer for the given profile type.FIG. 2 Type B-Typical PVC Profile StripTABLE 2 Type B Typical Profile Strip Moments of Inertia and Stiffness FactorsProfile Type Moment of Inertia, I Depth to Neutral Axis, y Minimum
34、 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)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.
35、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 (28.53) 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
36、 Steel Reinforcing Strip Type BF1741 1836.1.2 Cleaning of PipelineInternal debris should be removed from the existing pipeline. Gravity pipes should be cleaned withhydraulically powered equipment, high-velocity jet cleaners, or mechanically powered equipment in accordance with NASSCOrecommended spec
37、ifications.6.1.3 Inspection of PipelinesInspection of pipelines should be performed by experienced personnel trained in locating breaks,obstacles, and service connections by closed-circuit television or by direct visual inspection. The interior of the pipeline shouldbe carefully inspected to determi
38、ne the location of any conditions that may prevent proper installation of the spiral wound linerpipe, such as protruding service taps, collapsed or crushed pipe, out-of-roundness, significant line sags, and deflected joints. Theseconditions should be noted and corrected, if necessary, prior to insta
39、llation.6.1.4 Line ObstructionsThe existing pipeline should be clear of obstructions that will prevent the proper insertion, andexpansion if required, of the spiral wound liner pipe. Obstructions could include dropped or offset joints of more than 12.5 % ofinside pipe diameter, service connections t
40、hat protrude into the pipe more than 12.5 % of the inside pipe diameter or 1-in. (25-mm),whichever is less; and other obstructions in cross-sectional area of more than 16 % based on the inside diameter of the existingpipe. If inspection reveals an obstruction that cannot be removed by conventional e
41、quipment, then a point repair excavation shouldbe made to uncover and remove or repair the obstruction. The angle of any bend along the pipeline that can be negotiated by thespiral wound liner pipe depends on a combination of factors such as the condition of the existing pipe, the location of the be
42、ndwithin the pipeline, and whether there are multiple bends. For a determination of whether a given bend can be accommodated, orwhether access will be required for termination and start of a new insertion, consult the supplier of the liner material. Dependingon the method of installation used, inser
43、tion and expansion, or fixed diameter, some changes in pipe size along the insertion lengthof the spiral wound liner pipe can be accommodated, and it is recommended that the spiral wound liner pipe material supplier becontacted.6.2 BypassingThe spiral wound liner pipe process does not require a dry
44、pipeline and can be installed with some flow in theexisting pipe or lateral connections, or both. If necessary, the bypass should be made by plugging the line at a point upstream ofthe pipe to be reconstructed and pumping the flow to a downstream point or adjacent system. The pump and bypass lines s
45、houldbe of adequate capacity and size to handle any extreme flows expected during the installation period.6.2.1 Under certain conditions, part or all of the installation may be carried out with some flow in the existing pipeline or serviceconnections, or both.6.3 Pipe Liner Fabrication and Insertion
46、 Using Stationary Installation Equipment:6.3.1 A winding machine should be placed in the insertion pit and oriented so that 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 near theins
47、ertion point. The initial winding process begins with the profile strip being fed into the winding machine, forming the profilestrip into the required spiral wound liner pipe diameter, which is simultaneously rotated and pushed along the existing pipeline forits full length to the termination point.
48、 As the profile strip is formed into a spiral, wound liner pipe in the winding machine, therequired sealant or adhesive, or both unless already in place, shall be placed within the primary and secondary locks of the lockingconfiguration at the edge of the profile strip, and wire is placed between th
49、e primary and secondary locks of the lockingconfiguration when the spiral wound liner pipe is to be expanded (see Fig. 6 and Fig. 7).6.3.2 When the spiral wound liner pipe is to be expanded as shown in Fig. 6, the end of the spiral wound liner pipe at thetermination point should be torsionally restrained. A specific length of the inserted spiral wound liner pipe is released at thetermination point by pulling the wire out of the expandable interlocked joint, thereby severing the secondary lock (see Fig. 6), thusFIG. 5 Typical Spiral Wound Liner Pip
