DIN 18807-6-1995 房屋结构用梯形型材.第6部分:铝制梯形型材及连接件.通过计算得出支承力数据
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【英文标准名称】:Trapezoidalsheetinginbuildings-Part6:Aluminiumtrapezoidalsheetingandtheirconnections;determinationofloadbearingcapacitybycalculation
【原文标准名称】:房屋结构用梯形型材.第6部分:铝制梯形型材及连接件.通过计算得出支承力数据
【标准号】:DIN18807-6-1995
【标准状态】:作废
【国别】:德国
【发布日期】:1995-09-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:金属型材;建筑物;剪切应力区;强度验证;梯形型钢;施工工程作业;施工;铝;规范(批准);设计;结构工程;梯形;外形;荷载能力;静力学;结构设计;验证;梯形槽钢;应力;结构;尺寸;数学计算;材料强度;铝结构
【英文主题词】:construction;metalsections;trapezoidalchannels;structuraldesign;structures;profile;aluminium;strengthprovings;mathematicalcalculations;loadcapacity;constructionengineeringworks;specification(approval);shearingstressfield;trapezoidalplates;trapezoidalshape;statics;verification;dimensions;structuralengineering;strengthofmaterials;aluminiumconstructions;design;buildings;stress
【摘要】:
【中国标准分类号】:P20
【国际标准分类号】:91_040_00
【页数】:15P.;A4
【正文语种】:德语
【英文标准名称】:StandardPracticeforDirectPushInstallationofPrepackedScreenMonitoringWellsinUnconsolidatedAquifers
【原文标准名称】:未固结含水土层里预制的滤网式监测井的直推式安装的标准实施规程
【标准号】:ASTMD6725-2004(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D18.21
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:aquifer;directpush;groundwater;monitoringwell;prepackedscreen;waterquality;Siteidentification/investigation/selection;Waterqualitymonitoring;Aquifers;Directpushinstallation;Ground-watermonitoring/sampling;Installation--groundwater/s
【摘要】:Thispracticeisintendedtoprovidetheuserwithinformationontheappropriatemethodsandproceduresforinstallingprepackedscreenmonitoringwellsbydirectpushmethods.Themonitoringwellsmaybeusedtoobtainrepresentativewaterqualitysamplesforaqueousphasecontaminantsorotheranalytesofinterest,eitherorganicorinorganic(Krametal.2000,McCall2000,McCalletal.1997).Themonitoringwellsmayalsobeusedtoobtaininformationonthepotentiometricsurfaceofthelocalaquiferandpropertiesoftheformationsuchashydraulicconductivityortransmissivity.Useofdirectpushmethodstoinstallmonitoringwellscansignificantlyreducetheamountofpotentiallyhazardousdrillcuttingsgeneratedduringwellinstallationatcontaminatedsites.Thismaysignificantlyreducecostofanenvironmentalsiteinvestigationandgroundwatermonitoringprogram.Minimizinggenerationofhazardouswastealsoreducestheexposurehazardstositeworkers,localresidents,andtheenvironment.Directpushmethodsformonitoringwellinstallationarelimitedtouseinunconsolidatedformationssuchasalluvial/streamsediments,glacialdeposits,andbeachtypesediments.Directpushmethodsaregenerallysuccessfulatpenetratingclays,silts,sandsandsomegravel.Depositssuchassoilswiththickcalichelayers,orglacialtillswithlargecobblesorbouldersmaybedifficultorimpossibletopenetratetothedesireddepth.Directpushmethodsarenotdesignedforpenetrationofconsolidatedbedrocksuchaslimestone,graniteorgneiss.1.1Thispracticeisbasedonrecognizedmethodsbywhichdirectpushmonitoringwellsmaybedesignedandinstalledforthepurposeofdetectingthepresenceorabsenceofacontaminant,andcollectingrepresentativegroundwaterqualitydata.Thedesignstandardsandinstallationprocedureshereinareapplicabletobothdetectionandassessmentmonitoringprogramsforfacilities.1.2Therecommendedmonitoringwelldesign,aspresentedinthispractice,isbasedontheassumptionthattheobjectiveoftheprogramistoobtainrepresentativegroundwaterinformationandwaterqualitysamplesfromaquifers.Monitoringwellsconstructedfollowingthispracticeshouldproducerelativelyturbidity-freesamplesforgranularaquifermaterialsrangingfromgravelstosiltysand.Stratahavinggrainsizessmallerthantherecommendeddesignforthesmallestdiameterfilterpackmaterialsshouldbemonitoredbyalternativemonitoringwelldesignswhicharenotaddressedinthispractice.1.3Directpushproceduresarenotapplicableformonitoringwellinstallationunderallgeologicandsoilconditions(forexample,installationinbedrock).Otherrotarydrillingproceduresareavailableforpenetrationoftheseconsolidatedmaterialsforwellconstructionpurposes(GuideD5092).Additionally,undersomegeologicconditionsitmaybeappropriatetoinstallmonitoringwellswithoutafilterpack(EPA1991).GuideD6724maybereferredtoforadditionalinformationontheseandothermethodsforthedirectpushinstallationofgroundwatermonitoringwells.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Thevaluesinparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.6Thispracticeoffersasetofinstructionsforperformingoneorm......
【中国标准分类号】:P13
【国际标准分类号】:13_060_10
【页数】:15P.;A4
【正文语种】:英语
