1、Designation: F 1741 07An American National StandardStandard 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 F 1741; the number immediately following the design
2、ation 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 (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice describes the pro
3、cedures for the 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, whic
4、h travels along 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 insert
5、ion, the spiral 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
6、space between 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 ispressed against the interior surface of the existing pipeline,except in the corners of rectangular pipes or
7、 where obstructionsof offsets occur.Alternatively, for existing pipelines 6 to 180 in.in diameter and for similar sized existing non circular pipelinessuch as arched or oval or rectangular shapes, the spiral woundliner pipe is inserted as a fixed diameter into the existingpipeline, and the annular s
8、pace between the fixed diameterspiral wound liner pipe and the existing pipe is grouted.1.2 The values in parentheses are provided for informationpurposes only.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the use
9、r of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations 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 Docum
10、ents2.1 ASTM Standards:2C 39/C 39M Test Method for Compressive Strength of Cy-lindrical Concrete SpecimensC 109/C 109M Test Method for Compressive Strength ofHydraulic Cement Mortars(Using 2-in. or 50-mm CubeSpecimens)C 495 Test Method for Compressive Strength of Light-weight Insulating ConcreteD 88
11、3 Terminology Relating to PlasticsD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 1784 Specification for Rigid Poly(Vinyl Chloride) (PVC)Compounds and Chlorinated Poly(Vinyl Chloride)(CPVC) CompoundsF 412 Terminology Relating to Plastic Piping SystemsF 1417 Test Method for Installation
12、 Acceptance of PlasticGravity Sewer Lines Using Low-Pressure AirF 1697 Specification for Poly(Vinyl Chloride) (PVC) Pro-file Strip for Machine Spiral-Wound Liner Pipe Rehabili-tation of Existing Sewers and Conduit2.2 NASSCO Standard:Recommended Specifications for Sewer Collection SystemRehabilitatio
13、n32.3 Uni-Bell Standard:UNI-B-5-89 Recommended Practice for the Installation ofPVC Sewer Pipe41This practice is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.67 onTrenchless Plastic Pipeline Technology.Current edition appro
14、ved June 1, 2007. Published July 2007. Originally approvedin 1996. Last previous edition approved in 2005 as E174105.2For 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
15、 the standards Document Summary page onthe ASTM website.3Available from NASSCO, 140 Circle Drive, Suite 103, Maitland, FL 32751.4Available from Uni-Bell, 2655 Villa Creek Drive, Suite 155, Dallas TX 75234.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-
16、2959, United States.3. Terminology3.1 GeneralDefinitions are in accordance with Termi-nologies D 883 and F 412. Abbreviations are in accordancewith Terminology D 1600, unless otherwise indicated.3.2 Definitions of Terms Specific to This Standard:3.2.1 extruded PVC profile stripa product available in
17、various widths, consisting of a 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 method
18、s. SeeFig. 1 and Table 1 for Type 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 win
19、dingmachine field fabricates the 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 lin
20、er pipea product field fabricatedfrom 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 stiff
21、ening. (See Fig. 3 and Fig. 4.)3.2.7 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 agen
22、cies, owners, and inspection organizations 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 wit
23、hSpecification F 1697.5.2 The profile 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 mec
24、hanical locking elements should be 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 r
25、e-quires additional stiffness, such 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 f
26、lammablevapors or lack of oxygen 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,
27、or mechanically powered equipment 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 inspec
28、tion. The interior ofthe pipeline 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. Thes
29、e conditions should be notedand corrected, 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 j
30、oints of more than12.5 % of inside pipe diameter, service connections thatprotrude into the pipe more than 12.5 % of the inside pipediameter or 1-in. (25-mm), whichever is less; and otherNOTE 1For values of width, height, and waterway minimum wall, see Table 1.FIG. 1 Type A-Typical PVC Profile Strip
31、F 1741 072obstructions in cross-sectional area of more than 16 % basedon the inside diameter of the existing pipe. If inspection revealsan obstruction that cannot be removed by conventional equip-ment, then a point repair excavation should be made to uncoverand remove or repair the obstruction. The
32、angle of any bendalong the pipeline that can be negotiated by the spiral woundliner pipe depends on a combination of factors such as thecondition of the existing pipe, the location of the bend withinthe pipeline, and whether there are multiple bends. For adetermination of whether a given bend can be
33、 accommodated,or whether access will be required for termination and start ofa new insertion, consult the supplier of the liner material.Depending on the method of installation used, insertion andexpansion, or fixed diameter, some changes in pipe size alongthe insertion length of the spiral wound li
34、ner pipe can beaccommodated, and it is recommended that the spiral woundliner 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
35、bypass should be made by plugging 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
36、certain conditions, part or 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:6.3.1 A winding machine should be placed in the insertionpit and oriented so th
37、at 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 theprof
38、ile strip into the required spiral wound liner pipe diameter,TABLE 1 Type A Typical Profile Strip Moments of Inertia and Stiffness FactorsProfile TypeABMoment 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
39、. (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 ( 21.23 103)2 0.00140 ( 23.00) 0.130 (3.30) 0.314 ( 8.0) 0.146 (3.70) 561 ( 63.43 103)3 0.00537 (88.00) 0.206 (5.24) 0.511 (13.0) 0.205 (5.20) 2148 (242.7 3 103)4 0.00386 ( 63.30) 0.200 (5.08) 0.480 (12.2)
40、0.125 (3.18) 1600.0 (180.8 3 103)5 0.00400 ( 65.50) 0.180 (4.57) 0.488 (12.4) 0.125 (3.18) 1600.0 (180.8 3 103)6 0.00400 ( 65.50) 0.180 (4.57) 0.488 (12.4) 0.125 (3.18) 1600.0 (180.8 3 103)AOther profiles, possibly using supplementary stiffener elements, may be available. Consult the manufacturer.BT
41、he 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. 2 Type B-Typical PVC Profile StripTABLE 2 Type B Typical Profile Strip Moments of Inertia and Stiffness FactorsProfile Type
42、Moment 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)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
43、 93.58 0.35 8.91 0.578 14.67 0.2227 5.76 1946.3 2199004 0.01165 190.92 0.47 11.85 0.762 19.35 0.290 7.36 3971.0 4486565 0.04142 678.68 0.67 17.03 1.123 28.53 0.463 11.75 14116.0 15949006 0.00444 72.78 0.21 5.55 0.560 14.22 0.187 4.76 1513.8 171042FIG. 3 Shaped Steel Reinforcing Strip Type AFIG. 4 Sh
44、aped Steel Reinforcing Strip Type BF 1741 073which 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 bothunless alread
45、y 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 Fig. 5).6.3.2 When
46、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 the expandableinte
47、rlocked 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 be recom-menced, thereby creating a torque which is applied to therelea
48、sed 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 radially growth
49、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 point and oriented so that th
