AS NZS 3500 3 2-1998 National plumbing and drainage - Stormwater drainage - Acceptable solutions《国家管道和排水系统 第3 2部分 暴雨排水系统 可接受方案》.pdf

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1、AS/NZS 3500.3.2:1998BuildingCodeofAustraliaprimaryreferencedStandardAustralian/New Zealand StandardNational plumbing and drainagePart 3.2: Stormwater drainageAcceptable solutionsAccessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 22 Feb 2008 AVAILABLE SUPERSEDEDAS/NZS 3500.3.2:1998This

2、Joint Australian/New Zealand Standard was prepared by Joint TechnicalCommittee WS/20, Stormwater. It was approved on behalf of the Council ofStandards Australia on 1 May 1998 and on behalf of the Council of StandardsNew Zealand on 15 May 1998. It was published on 5 June 1998.The following interests

3、are represented on Committee WS/20:Association of Consulting Engineers, AustraliaAssociation of Hydraulic Services Consultants, AustraliaAustralasian Institute of Chartered Loss AdjustersAustralian Aluminium CouncilAustralian Chamber of Commerce and IndustryAustralian Chamber of ManufacturesBureau o

4、f Meteorology (Australia)Department of Land and Water Conservation, N.S.WDepartment of Local Government and Planning, QldLocal Government Office, Tas.Master Builders AustraliaMaster Plumbers and Mechanical Services Association of AustraliaMaster Plumbers AustraliaNew Zealand Local Government Associa

5、tionNew Zealand Manufacturers FederationNew Zealand Water and Wastes AssociationPlastics and Chemical Industries Association (Australia)Plastics Institute of New ZealandPlumbing Industry Board, VictoriaRoyal Melbourne Institute of TechnologyUniversity of Technology, SydneyDepartment of Administrativ

6、e Services - AustraliaReview of Standards. To keep abreast of progress in industry, Joint Australian/New Zealand Standards are subject to periodic review and are kept up to date by theissue of amendments or new editions as necessary. It is important therefore thatStandards users ensure that they are

7、 in possession of the latest edition, and anyamendments thereto.Full details of all Joint Standards and related publications will be found in the StandardsAustralia and Standards New Zealand Catalogue of Publications; this information issupplemented each month by the magazines The Australian Standar

8、d and StandardsNew Zealand, which subscribing members receive, and which give details of newpublications, new editions and amendments, and of withdrawn Standards.Suggestions for improvements to Joint Standards, addressed to the head office of eitherStandards Australia or Standards New Zealand, are w

9、elcomed. Notification of anyinaccuracy or ambiguity found in a Joint Australian/New Zealand Standard should bemade without delay in order that the matter may be investigated and appropriate actiontaken.This Standard was issued in draft form for comment as DR 96171.Accessed by ISONET - CHINA STATE BU

10、REAU OF TECHNICAL SUPERVIS on 22 Feb 2008 AVAILABLE SUPERSEDEDAS/NZS 3500.3.2:1998Australian/New Zealand StandardNational plumbing and drainagePart 3.2: Stormwater drainageAcceptable solutionsOriginated in Australia in part as part of AS CS3 1931.Previous editions AS 2180 1986 and AS 3500.3 1990.AS

11、2180 1986 and AS 3500.3 1990 jointly revised,amalgamated and redesignated in part as AS 3500.3.2:1998.Incorporating:Amdt 11998Published jointly by:Standards Australia1 The Crescent,Homebush NSW 2140 AustraliaStandards New ZealandLevel 10, Radio New Zealand House,155 The Terrace,Wellington 6001 New Z

12、ealandISBN 0 7337 1984 8Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 22 Feb 2008 AVAILABLE SUPERSEDEDAS/NZS 3500.3.2:1998 2PREFACEThis Standard was prepared by the Joint Standards Australia/Standards New ZealandCommittee WS/20, Stormwater, to supersede AS 21801986, Metal rainwate

13、rgoodsSelection and installation, and AS 3500.31990, National Plumbing andDrainage Code, Part 3: Stormwater drainage.This Standard is part of a series, as follows:AS 3500.3.1 Part 3.1: Stormwater drainagePerformance requirementsAS/NZS 3500.3.2 Part 3.2: Stormwater drainageAcceptable solutions (this

14、Standard)Stormwater drainageMethods for verification (Part 3.3) is in the course of preparation.The objective of this Standard is to provide installers with acceptable solutions formaterials and products and design and installation of stormwater drainage systems. Thesesolutions are not intended to e

15、xclude the use of other solutions.This edition sets out acceptable solutions for the following:(a) Roof drainage systems:(i) A general method for design incorporating recent Australian research on thefollowing:(A) Eaves gutter systemsprocedures similar to those of AS 21801986 butwith significant dec

16、reases in the ratios for the effective cross-sectional areaof eave gutter to vertical downpipes.(B) Box gutter systemsprocedures similar to those in AS 21801986 withadditional procedures for sump/side overflow and sump/high-capacityoverflow devices.(C) Valley guttersprocedures based on research publ

17、ished in 1988 by Martinand Tilley (see Paragraph A2).(ii) Installation, based on modifications and additions to AS 21801986.(b) Surface drainage systems:(i) Nominal and general methods for design.(ii) Installation, based on modifications and additions to AS 3500.31990.(c) Subsoil drainage systems de

18、sign and installation, based on modifications andadditions to AS 3500.31990.The advantage of the roof drainage general method is the relative simplicity of itsapplication. Continuing analysis of available experimental data is expected to result innew procedures for the design of(a) valley gutters; a

19、nd(b) eaves gutters with bends at various gradients for a wide range of cross-sections,sizes and depth to width ratios of 1:0.4 to 1:3.0.Statements expressed in mandatory terms in notes to figures and tables are deemed to berequirements of this Standard.The terms normative and informative have been

20、used in this Standard to define theapplication of the appendix to which they apply. A normative appendix is an integralpart of a Standard, whereas an informative appendix is only for information andguidance.Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 22 Feb 2008 AVAILABLE SUPERS

21、EDED3 AS/NZS3500.3.2:1998CONTENTSPageSECTION1SCOPEANDGENERAL1.1 SCOPEANDAPPLICATION. 61.2 REFERENCEDDOCUMENTS 61.3 DEFINITIONS 61.4 NOTATION. 81.5 STORMWATERDRAINAGEINSTALLATIONPLANS111.6 IDENTIFICATION.111.7 PROTECTIONOFWORKS111.8 POSITIONANDMANNEROFDISCHARGE.12SECTION2MATERIALSANDPRODUCTS2.1 SCOPE

22、OFSECTION132.2 SELECTIONANDUSE.132.3 ROOFDRAINAGESYSTEM.132.4 STORMWATERDRAINS(NON-PRESSURE).142.5 RISINGMAINS(PRESSURE)152.6 SUBSOILDRAINS152.7 JOINTS.152.8 VALVES162.9 CONCRETEANDMORTAR.162.10EMBEDMENTMATERIAL172.11TRENCHFILL.172.12MISCELLANEOUS172.13FILTERSFORSUBSOILDRAINS.182.14RE-USE18SECTION3R

23、OOFDRAINAGESYSTEMSDESIGN3.1 SCOPEOFSECTION193.2 GENERALMETHOD.193.3 METEOROLOGICALCRITERIA193.4 CATCHMENTAREA.203.5 EAVES-GUTTERSYSTEMS.243.6 VALLEYGUTTERS.293.7 BOXGUTTERSYSTEMS.303.8 SOAKERS.31SECTION4ROOFDRAINAGESYSTEMSINSTALLATIONS4.1 SCOPEOFSECTION384.2 TRANSPORT,HANDLINGANDSTORAGE384.3 THERMAL

24、VARIATION384.4 CORROSION384.5 INSTALLATIONANDTESTING394.6 INSPECTIONANDCLEANING.424.7 ALTERATIONSANDDISCONNECTION424.8 EAVESGUTTERS.42Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 22 Feb 2008 AVAILABLE SUPERSEDEDAS/NZS3500.3.2:1998 4Page4.9 BOXGUTTERS424.10VALLEYGUTTERS.434.11DOWN

25、PIPES.434.12OVERFLOWDEVICESORMEASURES.434.13JOINTSFORMETALCOMPONENTS444.14JOINTSFORPVCCOMPONENTS.454.15JOINTSFOROTHERCOMPONENTS454.16SUPPORTSYSTEMS.47SECTION5SURFACEDRAINAGESYSTEMSDESIGN5.1 SCOPEOFSECTION495.2 DESIGNMETHODS.495.3 LAYOUT.495.4 NOMINALMETHOD515.5 GENERALMETHOD.51SECTION6SUBSOILDRAINAG

26、ESYSTEMSDESIGN6.1 SCOPEOFSECTION626.2 PURPOSE.626.3 TYPES.626.4 LAYOUT.646.5 DESIGNCONSIDERATIONS.65SECTION7SURFACEANDSUBSOILDRAINAGESYSTEMSINSTALLATION7.1 SCOPEOFSECTION677.2 GENERALREQUIREMENTS.677.3 SITESTORMWATERDRAINS.717.4 SUBSOILDRAINS74SECTION8SURFACEANDSUBSOILDRAINAGESYSTEMSANCILLARIES8.1 S

27、COPEOFSECTION778.2 PAVEDSURFACES.778.3 POINT(S)OFCONNECTION.778.4 REFLUXVALVES778.5 INSPECTIONOPENINGS.788.6 STORMWATERPITS,INLETPITSANDARRESTERS788.7 SURCHARGEOUTLETS848.8 JUNCTIONS.848.9 JUMP-UPS858.10ANCHORBLOCKS858.11ON-SITESTORMWATERDETENTION(OSD)SYSTEMS87SECTION9PUMPEDSYSTEMS9.1 SCOPEOFSECTION

28、909.2 GENERAL909.3 WETWELLS909.4 PUMPS.919.5 RISINGMAINS.919.6 ELECTRICALCONNECTION91Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 22 Feb 2008 AVAILABLE SUPERSEDED5 AS/NZS3500.3.2:1998PageSECTION10TESTING10.1 SCOPEOFSECTION9210.2 DOWNPIPESANDDRAINSWITHINORUNDERBUILDINGS.9210.3 TES

29、TCRITERIA9210.4 PROCEDURE93APPENDICESA REFERENCEDANDRELATEDDOCUMENTS.94B SITEMIXEDCONCRETEFORMINORWORKS98C STORMWATERDRAINAGEINSTALLATIONPLANS.99D GUIDELINESFORRAINFALLINTENSITIES101E RAINFALLINTENSITIESFORAUSTRALIAFIVEMINUTESDURATION.102F RAINFALLINTENSITIESFORNEWZEALAND10MINUTESDURATION.118G EXAMP

30、LESOFACCEPTABLEOVERFLOWMEASURESFOREAVESGUTTERS123H GENERALMETHODFORDESIGNOFEAVESGUTTERSYSTEMSEXAMPLE126I BOXGUTTERSYSTEMSGENERALMETHOD,DESIGNGRAPHSANDILLUSTRATIONS131J BOXGUTTERSYSTEMSGENERALMETHOD,EXAMPLES140K SURFACEDRAINAGESYSTEMSNOMINALANDGENERALMETHODS,EXAMPLES150L EXAMPLECALCULATIONPUMPEDSYSTE

31、M.160Copyright STANDARDSAUSTRALIA/STANDARDSNEWZEALANDUsersofStandardsareremindedthatcopyrightsubsistsinallStandardsAustraliaandStandardsNewZealandpublicationsandsoftware.ExceptwheretheCopyrightActallowsandexceptwhereprovidedforbelownopublicationsorsoftwareproducedbyStandardsAustraliaorStandardsNewZe

32、alandmaybereproduced,storedinaretrievalsysteminanyformortransmittedbyanymeanswithoutpriorpermissioninwritingfromStandardsAustraliaorStandardsNewZealand.Permissionmaybeconditionalonanappropriateroyaltypayment.Australianrequestsforpermissionandinformationoncommercialsoftwareroyaltiesshouldbedirectedto

33、theheadofficeofStandardsAustralia.NewZealandrequestsshouldbedirectedtoStandardsNewZealand.Upto10percentofthetechnicalcontentpagesofaStandardmaybecopiedforuseexclusivelyin-housebypurchasersoftheStandardwithoutpaymentofaroyaltyoradvicetoStandardsAustraliaorStandardsNewZealand.Inclusionofcopyrightmater

34、ialincomputersoftwareprogramsisalsopermittedwithoutroyaltypaymentprovidedsuchprogramsareusedexclusivelyin-housebythecreatorsoftheprograms.CareshouldbetakentoensurethatmaterialusedisfromthecurrenteditionoftheStandardandthatitisupdatedwhenevertheStandardisamendedorrevised.ThenumberanddateoftheStandard

35、shouldthereforebeclearlyidentified.Theuseofmaterialinprintformorincomputersoftwareprogramstobeusedcommercially,withorwithoutpayment,orincommercialcontractsissubjecttothepaymentofaroyalty.ThispolicymaybevariedbyStandardsAustraliaorStandardsNewZealandatanytime.Accessed by ISONET - CHINA STATE BUREAU O

36、F TECHNICAL SUPERVIS on 22 Feb 2008 AVAILABLE SUPERSEDEDAS/NZS 3500.3.2:1998 6STANDARDS AUSTRALIA/STANDARDS NEW ZEALANDAustralian/New Zealand StandardNational plumbing and drainagePart 3.2: Stormwater drainageAcceptable solutionsSECTION 1 SCOPE AND GENERAL1.1 SCOPE AND APPLICATION1.1.1 Scope This St

37、andard specifies acceptable solutions for materials and products,and design and installation of roof drainage systems, surface drainage systems and subsoildrainage systems to the point(s) of connection to the external stormwater drainagenetwork.1.1.2 Application This Standard will be referenced in t

38、he Building Code of Australiaby way of BCA Amendment 3 to be published by 1 July 1998, thereby superseding theprevious editions, AS 21801986 and AS 3500.31990, which will be withdrawn12 months from the date of publication of this edition.1.2 REFERENCED DOCUMENTS The documents referred to in this Sta

39、ndard arelisted in Appendix A.1.3 DEFINITIONS For the purpose of this Standard, and unless otherwise stated, thedefinitions referenced in the following Standards apply:(a) For terms relating to Part 3, as given in AS/NZS 3500.0.(b) For terms relating to buried flexible pipes, concrete pipes and vitr

40、ified clay pipes, asgiven in AS/NZS 2566.1, AS 3725 and AS 4060, respectively.For other terms, the definitions below apply.1.3.1 Average recurrence interval (ARI)the expected or average interval betweenevents of a rainfall intensity of a given magnitude being exceeded.NOTE: The ARI is an average val

41、ue based on statistical analysis. The actual time betweenexceedances will vary.1.3.2 Box guttergraded channel, generally of rectangular shape, for the conveyance ofrainwater, located within the building. Includes a gutter adjacent to a wall or parapet. (SeeFigures I5, I7.)1.3.3 Eaves gutterchannel,

42、for the conveyance of rainwater, located along the eavesof a roof external to the fascia line. A concealed eaves gutter is located inside the fascialine and can also be called an internal eaves gutter.1.3.4 External stormwater drainage networka network that collects and conveysstormwater from indivi

43、dual properties.NOTE: The network includes easement or inter-allotment drains, and street and trunk drainagesystems.1.3.5 Freeboardthe specified minimum vertical distance between the calculated andactual depths for a gutter, site stormwater channel or the like.COPYRIGHTAccessed by ISONET - CHINA STA

44、TE BUREAU OF TECHNICAL SUPERVIS on 22 Feb 2008 AVAILABLE SUPERSEDED7 AS/NZS 3500.3.2:19981.3.6 Inert catchmenta rainwater collection area whose dominant material has littleor no effect on the chemical composition of rainwater draining from it. Such materialsinclude acrylic, fibreglass, aluminium/zin

45、c alloy-coated steel, glass, glazed tiles,unplasticized polyvinyl chloride and pre-painted metal.1.3.7 Inlet pita chamber fitted with side, grate or combination entry to permit thecollection and ingress of stormwater to a site stormwater drain (see Clauses 1.3.12, 1.3.18and 1.3.24).1.3.8 Main intern

46、al draina drain that collects stormwater from two or more sitestormwater drains within a property and(a) has a diameter greater than DN 300; or(b) drains stormwater from a roadway or accessway serving a number of buildingslocated on one property.1.3.9 Major storma storm due to rainfall events of rar

47、e occurrence which can causestormwater flows in excess of the capacity of the surface drainage system and henceoverflows along overland flow paths.NOTE: In Australia an ARI of 100 years (see the chapter on urban stormwater drainage inARR87) and in New Zealand an ARI of 50 years, are commonly adopted

48、 for a major storm.1.3.10 Minor storma storm due to rainfall events for which the surface drainagesystem is designed.NOTE: The selected ARI for a minor storm will depend on the level of nuisance and damagelikely to be caused by overflows due to rainfall events of a greater ARI, or failure of thesurf

49、ace drainage system or stormwater drainage network.1.3.11 Network utility operatorthe operator of the external stormwater drainagenetwork.1.3.12 On-grade pitan inlet pit located on a slope where stormwater that is notreadily admitted bypasses the inlet.1.3.13 On-site stormwater detention (OSD) tanka tank for the temporary storage ofstormwater to reduce the peak flow to the stormwater drainage network.1.3.14 Overflow devicea device for use with the roof drainage system to safely divertflow in the event of a bloc