水利水电外文翻译.docx
- 文档编号:3124680
- 上传时间:2022-11-17
- 格式:DOCX
- 页数:11
- 大小:86.58KB
水利水电外文翻译.docx
《水利水电外文翻译.docx》由会员分享,可在线阅读,更多相关《水利水电外文翻译.docx(11页珍藏版)》请在冰豆网上搜索。
水利水电外文翻译
HydromechanicalanalysisofPlacingandprotectingfill
flowbehaviorindam
Abstract:
Primarysurfaceaccordingtothedesignrequirementsofexcavationandstoneprocessing,toensurethatthedense,withcertainstrengthandstabilitymeettherequirements.Quarrymining,transportintherepairoftheroadatthesametime,excavator,bulldozer,withclearreclaimerfieldcoveringlayer,toensurethatnoweedrootsandsoiltillage.Abandonthematerialpilingupintheyardrightasobstinatecultivatedmaterial,alsoprepareslopetopreventsoilerosiondamfillingshouldbedone:
regardlessofwhichpartofthefillandthefinalfoundationsurfaceexposuretimedoesnotexceed72hours.Fillmethodshouldalsopreventtheseparationofthefillingmaterial.Ifthecontractrequirementsindifferentlotsofdifferentfillingpackingandcontractingbusinessinconstructionshouldpreventofconfusionbetweenthedifferenttypesoffillers.
Keywords:
Hydromechanicalfillpermeability
Anyundesirablematerialaccumulatedonthefillsurfaceshallberemovedbeforeplaceingthenextlayeroffillmaterialshallbeplacedonapreviouslayerofthathasdriedout,becomesaturatedorinanywaydeterioratedbyexposureorbyspillingofothermaterialordisterbancebymechanicaltransportorbydepositionofwindblownparticlesorbyanyothermeans.Beforefreshfillmaterialisplacedaoosuchdeterioratedfillorforeignmaterialshallberemovedtoadepthatwhichmaterialofanacceptablestandardisexposed.ThesurfaceofeachlayeristobeapprovedbytheEngineerbeforethenextlayerisplaced.
Anyfillshallbeplacedinuniformlayersnotgreaterthantheapprovedthicknessasspecifiedhereafterandinanorderlysequenceapproximatelyhorizontalalongthecentrelineofthewherespecifiedofdirectedotherwise,noportionofanyembankmentshallbesteppedmorethan3feethigherthananyimmediatelyadjacentportionexceptwherepermittedbytheEngineerandtheslopeformedbysuchstepsshallnotexceed1V:
3Handnotlessthan1V:
4HfromoneleveltoasshownontheDrawingsorasotherwisedirected,allfillplacementsurfacesshallbeslopedatrightanglestothecenterlineoftheembankmentinboththeupstreamanddownstreamdirectionfromthedownstreamedgeofthecoresoastoallowrun-offandpreventtheaccumulationofwater.Thedrainageslopeonthetemporarysurfaceofannyzoneshallnotexceed1on30andthehighestpointshallbededownstreamedgeofthecore.
Where,duetothespecifiedgeometryoftheexcavationintothetopoftheexistingembankments,thesurfaceslopeistowardsthedownstreamedgeofthecore,theContractorshalltakesuchmeasuresannecessarytopreventerosionoffinematerialbeingwashedintothefilterzonesdownstreamofthecore.Anysurfacelayeroffiltermaterialcontaminatedbysuchdrainageorothercauseshallberemovedandreplacedwithfreshfiltermaterialbeforeplacingthenextlayerabove.
Constructionofanyoneembankmentshallbecarriedoutoverthemaximumpossiblelength,molessthan1500feet,ofthatembankmentinsuchamannerthatmotemporaryconstructionslopecrossestheaxisoftheembankmentexceptasapprovedbytheEngineer.WhereatemporaryconstrctionslopecrossingtheaxisoftheembankmentispermittedbytheEngineeritshallbeformedatagradientof1V:
5H.Whensubsequentlyplaceingmaterialagainstthisslopeitshallbecutbackinstepsequaltothelayerthicknesstoavoidfeatheredges.TheContractorshallcompleteeachlayeroffillfullyuptotheabutmentcontactsandstructuresandagainstslopingfoundationsandensurethatthefilliscompactedanspecifiedthroughout.TheContractorshallnotallowthefillinthoseareastolagbehindortogetaheadofthenormalfillplacingoperationsandformfeatheredges,exceptwherefillhasbeenplacedinadvancetocovergroutedsurface.
Shouldnotcontainhumussoilwasusedtofillthesoil,roots,orotherharmfulsubstances,tofilljobsshouldspreadinlayersshop,motorgraderleveling,eachlayerofloosepavingthicknessshouldbenotmorethan30cm.Eachfillerlayerthicknessisnotlessthan50cm,topearthworkembankmenttothepavementsurfacelayerattheendofthecompactionthicknessshouldnotlessthan10cm.
WheretheContractorisallowedtouseeithergrvelfilland/orsandstonenointermixingofthetwomaterialsinalayershallbeallowed.TheConstractormayplaceeitherofthematerialsinadjacentlayersorsectionsoftheembankment.
TheConstractorshallberesponsibleforprotectingtemporaryfillsurfacesagainstdamageoferosion.Attheendofeachworkingday,orifitstarttorain,thesurfaceofthefillshallbemadesmoothandcompactedwithasmoothdrumrollerwithadrainageslopetoinducerunofffromthefilledareasandleavenoareasthatcanretainwater.Wherenecessary,
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 水利水电 外文 翻译