ISO TR 10465-3-2007 Underground installation of flexible glass-reinforced pipes based on unsaturated polyester resin (GRP-UP) - Part 3 Installation parameters a.pdf

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1、 Reference number ISO/TR 10465-3:2007(E) ISO 2007TECHNICAL REPORT ISO/TR 10465-3 Second edition 2007-09-01 Underground installation of flexible glass-reinforced pipes based on unsaturated polyester resin (GRP-UP) Part 3: Installation parameters and application limits Installation enterre de canalisa

2、tions flexibles renforces de fibres de verre base de rsine polyester insature (GRP-UP) Partie 3: Paramtres dinstallation et limites dapplication ISO/TR 10465-3:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or

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5、ble for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or ut

6、ilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fa

7、x + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2007 All rights reservedISO/TR 10465-3:2007(E) ISO 2007 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope 1 2 Normative references 1 3 Symbols and abbreviated terms 1 4 Parameters for d

8、eflection calculations when using an ATV-A 127 type design system10 4.1 Initial deflection10 4.2 Long-term deflection calculated using an ATV-A 127 type design system.16 5 Soil parameters, strain coefficients and shape factors for flexural strain calculations 17 5.1 For equations used in ATV-A 127 t

9、ype design systems17 5.2 Shape factor, D f 19 6 Influence of soil moduli and pipe stiffness on pipe buckling calculations using ATV-A 127 type design systems .22 6.1 Elastic buckling under internal negative pressure for depths of cover over 1 m.22 6.2 Long-term buckling under sustained external load

10、.23 6.3 Value for S O .23 7 Parameters for rerounding and combined loading calculations 23 7.1 Rerounding.23 7.2 Combined effects of internal pressure and external bending loads23 8 Traffic loads24 8.1 General24 8.2 Influence on allowable initial deflection24 8.3 Soil pressure from traffic loads24 9

11、 Influence of sheeting.24 10 Safety factors for gravity pipes and pressure pipes25 10.1 Gravity pipes 25 10.2 Pressure pipes .27 10.3 Safety factors in buckling calculations .29 Annex A (informative) Soil parameters .30 Annex B (informative) Determination of concentration factors used in ATV-A 127.4

12、2 Annex C (informative) Loading coefficients used in ATV-A 127 43 Annex D (informative) Horizontal bedding correction factors44 Annex E (informative) Selection of long-term stiffness 46 Annex F (informative) Partly residual soil friction used in ATV-A 127 type calculation systems.48 Annex G (informa

13、tive) Application limits for GRP pressure pipes installed underground .50 Bibliography 63 ISO/TR 10465-3:2007(E) iv ISO 2007 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of pr

14、eparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, i

15、n liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main tas

16、k of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. In excep

17、tional circumstances, when a technical committee has collected data of a different kind from that which is normally published as an International Standard (“state of the art”, for example), it may decide by a simple majority vote of its participating members to publish a Technical Report. A Technica

18、l Report is entirely informative in nature and does not have to be reviewed until the data it provides are considered to be no longer valid or useful. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsib

19、le for identifying any or all such patent rights. ISO 10465-3 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 6, Reinforced plastics pipes and fittings for all applications. This second edition cancels and replaces the

20、first edition (ISO 10465-3:1999), which has been technically revised to take into account changes made to methods in base documents ATV-A 127 and AWWA M-45 (see Introduction). ISO 10465 consists of the following parts, under the general title Underground installation of flexible glass- reinforced pi

21、pes based on unsaturated polyester resin (GRP-UP): Part 1: Installation procedures Technical Specification Part 2: Comparison of static calculation methods Technical Report Part 3: Installation parameters and application limits Technical Report ISO/TR 10465-3:2007(E) ISO 2007 All rights reserved v I

22、ntroduction Work in ISO/TC 5/SC 6 (now ISO/TC 138) on writing International Standards for the use of glass-reinforced plastics (GRP) pipes and fittings was approved at the subcommittee meeting in Oslo in 1979. An ad hoc group was established and the responsibility for drafting various International

23、Standards was later given to a Task Group (now ISO/TC 138/SC 6). At the SC 6 meeting in London in 1980, Sweden proposed that a working group be formed to develop documents regarding a code of practice for GRP pipes. This was approved by SC 6, and Working Group 4 (WG 4) was formed for this purpose. S

24、ince 1982, many WG 4 meetings have been held which have considered the following matters: procedures for the underground installation of GRP pipes; pipe/soil interaction with pipes having different stiffness values; minimum design parameters; overview of various static calculation methods. During th

25、e work of WG 4, it became evident that unanimous agreement could not be reached within the working group on the specific methods to be employed to address these issues. It was therefore agreed that all parts of the code of practice should be made into a type 3 Technical Report, and this was the form

26、 in which this part of ISO 10465 was first published in 1999. Since then the ISO rules dealing with the classification of document types have been revised and this has resulted in the three parts of ISO 10465 now being published as either a Technical Specification or a Technical Report. ISO 10465-1,

27、 published as Technical Report in 1993 and revised as a Technical Specification in 2007, describes procedures for the underground installation of GRP pipes. It concerns particular stiffness classes for which performance requirements have been specified in at least one product standard, but it can al

28、so be used as a guide for the installation of pipes of other stiffness classes. ISO 10465-2, published as a Technical Report in 1999 and revised in 2007, presents a comparison of the two primary methods used internationally for static calculations on underground GRP pipe installations. These methods

29、 are a) the ATV method given in ATV-A 127, Guidelines for static calculations on drainage conduits and pipelines, and b) the AWWA method given in AWWA manual M-45, Fiberglass pipe design. This part of ISO 10465, published as a Technical Report in 2007, gives additional information, which is useful f

30、or static calculations primarily when using an ATV-A 127 type design system in accordance with ISO 10465-2, on items such as: parameters for deflection calculations; soil parameters, strain coefficients and shape factors for flexural-strain calculations; soil moduli and pipe stiffness for buckling c

31、alculations with regard to elastic behaviour; parameters for rerounding and combined-loading calculations; the influence of traffic loads; the influence of sheeting; safety factors. ISO/TR 10465-3:2007(E) vi ISO 2007 All rights reservedThis Technical Report is not to be regarded as an International

32、Standard. It is proposed for provisional application so that experience may be gained on its use in practice. Comments should be sent to the secretariat of TC 138/SC 6. TECHNICAL REPORT ISO/TR 10465-3:2007(E) ISO 2007 All rights reserved 1 Underground installation of flexible glass-reinforced pipes

33、based on unsaturated polyester resin (GRP-UP) Part 3: Installation parameters and application limits 1 Scope This part of ISO 10465 gives supplementary information on parameters and application limits for the underground installation of flexible glass-reinforced pipes based on unsaturated polyester

34、resin (GRP-UP). It is particularly relevant when using an ATV-A 127 type design system. Explanations for the long-term safety factors incorporated into the GRP system standards based on simplified probabilistic methods are provided in Annex G. 2 Normative references The following referenced document

35、s are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ATV-A 127, Guidelines for static calculations on drainage conduits and pipelines,

36、3rd edition, August 2000, (German Association for Water Pollution Control) AWWA M-45, Fiberglass pipe design manual M-45, 2005 (American Water Works Association) 3 Symbols and abbreviated terms For the purposes of this document, the following symbols apply. NOTE 1 This clause also contains symbols a

37、nd abbreviations from ISO 10465-1 and ISO 10465-3 for completeness. NOTE 2 Several identical symbols are used in ATV-A 127 and AWWA M-45 to represent different quantities, and where this occurs, the origin of the symbol is given in the rightmost column. NOTE 3 The format of the symbols listed here h

38、as been aligned as far as practicable with the ISO/IEC Directives, part 2, namely they appear in Times New Roman italic font. This format may differ slightly from the format used in ATV-A 127 and AWWA M-45. Symbol Unit Meaning AQL acceptable quality level a effective relative projection a f ageing f

39、actor (ATV) a f distribution factor (AWWA) ISO/TR 10465-3:2007(E) 2 ISO 2007 All rights reservedB1, B2, B3, B4 embedment conditions b m trench width at spring-line b m distance from trench wall to pipe (see Figure 1) C n buckling scalar calibration factor c 1 , c 2 , c 3 , c 4 coefficients used to d

40、etermine c 4 reduction factor c f creep factor h,qv v,qh v,qh* h,qh h,qh* v,qv , cccccc deformation coefficients v* v,qh* h,qh* v* , cccc D mm mean pipe diameter D f shape factor D g shape adjustment factor D L deflection lag factor D pr% compaction (based on simple proctor) d em external pipe diame

41、ter d im internal pipe diameter d mm mean pipe diameter ( ) e 1000 de d vmm vertical deflection d vAmm maximum permissible long-term deflection d vRmm vertical deflection at rupture () vm permissible dd % maximum permissible relative vertical deflection ( ) vm initial dd % initial vertical deflectio

42、n ( ) vm 50 dd % long-term (50 year) vertical deflection ( ) vm ult dd % ultimate long-term vertical deflection o t,wet , p EE E E N/m 2apparent flexural moduli of pipe wall 1234sss , 2 0 , , E EEEEEEE E N/m 2soil deformation moduli E THN/m 2 tensile hoop modulus e mm pipe wall thickness e base of n

43、atural logarithms (2,718 281 8) F compaction factor F A , F EkN wheel loads ISO/TR 10465-3:2007(E) ISO 2007 All rights reserved 3 FS calculated safety factor (ATV) FS design factor = 2,5 (AWWA) FS b bending safety factor FS pr pressure safety factor f 1 reduction factor for creep f 2 reduction facto

44、r for ground water in pipe zone G1, G2, G3, G4 soil groups HDB extrapolated pressure strain at 50 years H EVDm environmental depth of cover h m depth of cover to top of pipe h int m depth at which load from wheels interact h wm height of water surface above top of pipe I m 4 /m second moment of area

45、 in longitudinal direction per unit length (of a pipe) I f impact factor (AWWA) i fN/mm 2installation factor K * coefficient for bedding reaction pressure K modulus of deformation K 1 , K 2 ratio of horizontal to vertical soil pressure in soil zones 1 and 2 K 3 ratio of horizontal to vertical soil p

46、ressures in pipe-zone backfill, when backfill is at top of pipe (see ISO 10465-3:2007, Annex A) k v2 reduction factor to take into account the elastic-plastic soil mass law and preliminary deflections k x bedding coefficient L 1m load width parallel to direction of travel L 2 m load width perpendicu

47、lar to direction of travel LLDF live load as a function of depth factor M sum of bending moments M p multiple presence factor M sN/m 2 composite constrained-soil modulus M s1N/m 2 value of composite constrained-soil modulus from ISO 10465-3:2007, Table A.3 ISO/TR 10465-3:2007(E) 4 ISO 2007 All right

48、s reservedM s100N/m 2 composite constrained-soil modulus at 100 % SPD M sbN/m 2 backfill soil constrained modulus M snN/mm 2 native soil constrained modulus qv qh qh* , mmm moment factors N sum of normal forces n 10 number of blows P N magnitude of wheel load PN nominal pressure (pipe characteristic

49、) P bar internal pressure P f probability of failure P vMPa (N/mm 2 ) internal under-pressure P wN/m 2 working pressure P(X) probability function P 50bar long-term (50 year) failure pressure p N/m 2 soil stress resulting from traffic loads p EN/mm 2 pressure due to prismatic soil load p e N/mm 2 external water pressure p FN/m 2 soil stress due to traffic load according to Boussinesq p oN/m 2 soil pressure due to uniformly