ISO 14688-2-2004 土工学调查和试验.土壤的识别和分类.第2部分:分类原则

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【英文标准名称】:Geotechnicalinvestigationandtesting-Identificationandclassificationofsoil-Part2:Principlesforaclassification
【原文标准名称】:土工学调查和试验.土壤的识别和分类.第2部分:分类原则
【标准号】:ISO14688-2-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-07
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC182
【标准类型】:()
【标准水平】:()
【中文主题词】:土壤;土壤普查;土壤采样;描述;术语;识别;土力学;土方工程;土壤分类;土壤分类;基础工程;土壤组分;参数;结构工程;分类系统;剪切强度;土工学;粒度;定义;特性;分类;心土;粒度分布;分类(文献);土壤学;建筑;土木工程
【英文主题词】:Civilengineering;Classification;Classificationsystems;Classifying(documents);Compositionoftheground;Construction;Definitions;Descriptions;Earthworks;Foundationengineering;Geotechnics;Grainsize;Groupofsoils;Identification;Parameters;Particlesizedistribution;Properties;Shearstrength;Soilclassification;Soilmechanics;Soilsampling;Soilscience;Soilsurveys;Soils;Structuralengineering;Subsoil;Terms
【摘要】:ThispartofISO14688,togetherwithISO14688-1,establishesthebasicprinciplesfortheidentificationandclassificationofsoilsonthebasisofthosematerialandmasscharacteristicsmostcommonlyusedforsoilsforengineeringpurposes.Therelevantcharacteristicsmayvaryandtherefore,forparticularprojectsormaterials,moredetailedsubdivisionsofthedescriptiveandclassificationtermsmaybeappropriate.IdentificationanddescriptionofsoilarecoveredbyISO14688-1.TheclassificationprinciplesestablishedinthispartofISO14688permitsoilstobegroupedintoclassesofsimilarcompositionandgeotechnicalpropertiesand,withrespecttotheirsuitabilityforgeotechnicalengineeringpurposes,suchas—foundations,—groundimprovements,—roads,—embankments,—dams,and—drainagesystems.ThispartofISO14688isapplicabletonaturalsoilandsimilarman-madematerialinsituandredeposited,butitisnotaclassificationofsoilbyitself.IdentificationanddescriptionofrockarecoveredbyISO14689-1.
【中国标准分类号】:P10
【国际标准分类号】:93_020
【页数】:13P;A4
【正文语种】:英语


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【英文标准名称】:StandardPracticeforSamplingofSoilUsingtheHydraulicallyOperatedStationaryPistonSampler
【原文标准名称】:用液压操作的固定活塞采样器进行土壤取样的标准实施规程
【标准号】:ASTMD6519-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D18.02
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:hydraulicallyactivated;stationarypiston;thin-walledtube;Thin-walledtubulartestspecimen;Hydraulicstationarypistonsampler;Soilsampling;Stationarypistonsampler
【摘要】:Hydraulicallyactivatedstationarypistonsamplersareusedtogathersoilsamplesforlaboratoryorfieldtestingandanalysisforgeologicinvestigations,soilchemicalcompositionstudies,andwaterqualityinvestigations.Thesamplerissometimesusedwhenattemptstorecoverunstablesoilswiththin-walledtubes,PracticeD1587,areunsuccessful.Examplesofafewtypesofinvestigationsinwhichhydraulicstationarypistonsamplersmaybeusedincludebuildingsitefoundationstudiescontainingsoftsediments,highwayanddamfoundationinvestigationswheresoftersoilformationneedevaluation,wetlandcrossingsutilizingfloatingstructures,andhazardouswastesiteinvestigations.Hydraulicallyactivatedstationarypistonsamplersprovidespecimensnecessarytodeterminethephysicalandchemicalcompositionofsoilsand,incertaincircumstances,containedporefluids(seeGuideD6169).Hydraulicallyactivatedstationarypistonsamplerscanproviderelativelyintactsoilsamplesofsoftorlooseformationmaterialsfortestingtodetermineaccurateinformationonthephysicalcharacteristicsofthatsoil.Samplesofsoftformationmaterialscanbetestedtodeterminenumeroussoilcharacteristicssuchas;soilstratigraphy,particlesize,moisturecontent,permeability,sheerstrength,compressibility,andsoforth.Thechemicalcompositionofsoftformationsoilscanalsobedeterminedfromthesampleifprovisionsaremadetoensurethatclean,decontaminatedtoolsareusedinthesamplegatheringprocedure.Field-extrudedsamplescanbefield-screenedorlaboratory-analyzedtodeterminethechemicalcompositionofsoilandcontainedporefluids.Usingsealedorprotectedsamplingtools,casedboreholes,andproperadvancementtechniquescanhelpintheacquisitionofgoodrepresentativesamples.Ageneralknowledgeofsubsurfaceconditionsatthesiteisbeneficial.Theuseofthispracticemaynotbethecorrectmethodforinvestigationsofsofterformationsinallcases.Aswithallsamplingmethods,subsurfaceconditionsaffecttheperformanceofthesamplegatheringequipmentandmethodsused.Forexample,researchindicatesthatcleansandsmayundergovolumechangesinthesamplingprocess,duetodrainage.Thehydraulicallyactivatedstationarypistonsamplerisgenerallynoteffectiveforcohesiveformationswithunconfined,undrainedshearstrengthinexcessof2.0tonspersquarefoot,coarsesands,compactgravellytillscontainingbouldersandcobbles,compactedgravel,cementedsoil,orsolidrock.Theseformationsmaydamagethesampleorcauserefusaltopenetration.Asmallpercentageofgravelorgravelcuttingsinthebaseoftheboreholecancausethetubetobendanddeform,resultinginsampledisturbance.Certaincohesivesoils,dependingontheirwatercontent,cancreatefrictiononthethin-walledtubewhichcanexceedthehydraulicdeliveryforce.Somerockformationscanweatherintosoftorloosedepositswherethehydraulicallyactivatedstationarypistonsamplermaybefunctional.Theabsenceofgroundwatercanaffecttheperformanceofthissamplingtool.Aswithallsamplingandboreholeadvancementmethods,precautionsmustbetakentopreventcross-contaminationofaquifersthroughmigrationofcontaminatesupordowntheborehole.RefertoGuideD6286onselectingdrillingmethodsforenvironmentalsitecharacterizationforadditionalinformationaboutworkathazardouswastesites.1.1Thispracticecoversaprocedureforsamplingofcohesive,organic,orfine-grainedsoils,orcombinationthereof,usingathin-walledmetaltubethatisinsertedintothesoilformationbymeansofahydraulicallyoperatedpiston.Itisusedtocollectrelativelyintactsoilsamplessuitableforlaboratoryteststodeterminestructuralandchemicalpropertiesforgeotechnicalanden......
【中国标准分类号】:P13
【国际标准分类号】:13_080_01
【页数】:7P.;A4
【正文语种】:英语


【英文标准名称】:Householdandsimilarelectricalappliances--Safety--Part2-75:Particularrequirementsforcommercialdispensingappliancesandvendingmachines
【原文标准名称】:家用和类似用途电气设备的安全.第2-75部分:商用售货机和自动售货机的特殊要求
【标准号】:JISC9335-2-75-2004
【标准状态】:现行
【国别】:日本
【发布日期】:2004-11-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonElectricityTechnology
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:この規格は,食品,飲料及び物品の準備又は供給のための業務用ディスペンサ及び自動販売機であって.それらの定格電圧が,単相機器の場合には250V以下.その他の機器の場合には480V以下のものの安全性に関する要求事項を規定している。
【中国标准分类号】:Y60
【国际标准分类号】:13_120;55_230
【页数】:38P;A4
【正文语种】:日语