BS EN 1536-2000 特殊土工工作的实施.螺旋钻孔桩

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【英文标准名称】:Executionofspecialgeotechnicalwork.Boredpiles
【原文标准名称】:特殊土工工作的实施.螺旋钻孔桩
【标准号】:BSEN1536-2000
【标准状态】:作废
【国别】:英国
【发布日期】:2000-01-15
【实施或试行日期】:2000-01-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:挖掘;高聚物;膨润土;镗削;集料;记录品(文献);施工作业;开挖;水泥;现场勘测;打桩工程;打桩;圆形;高炉水泥;结构体系;硅酸盐水泥;金属型材;桩;灌浆;负荷;基础;加筋;土力学;公差(测量);设计;混凝土;钢
【英文主题词】:Boredpiles;Care;Checks;Civilengineering;Construction;Constructionmaterials;Definitions;Design;Diaphragmwalls;Dimensioning;Geotechnics;Piling;Production;Siteinvestigations;Specialgeotechnicalwork;Surveillance(approval)
【摘要】:1ThisEuropeanStandardestablishesgeneralprinciplesfortheconstructionofpiles.—whichareformedinthegroundbyexcavationand—whichcontainastructuralmembertotransferloadsandorlimitdeformations.2ThisEuropeanStandardcovers—pileswithcircularshape(seeFigure1)and—pileswithbarretteshape,providedthesectionisconcretedinasingleoperation.3Thebarretteshapescoveredarerectangular,T-orLshapedinplanoranyothersimilarconfiguration(seeFigure2).4ThisEuropeanStandardcoverspileswith:—uniformcross-section(straightshaft);—telescopicallychangingshaftdimensions;—excavatedbaseenlargements;or—excavatedshaftenlargements(seeFigure3).NOTE:Theshapeofthepilebaseandofanenlargementcandependonthetoolusedfortheexcavation.5TheprovisionsofthisEuropeanStandardapplytopileswiththefollowingdimensions:—shaftdiameter:0,3≤D≤3,0m(seeFigure1andFigure3);—dimensionforcast-in-placebarrettepiles:—Wi.=0,4m(seeFigure2);—ratiobetweenthedimensions:Li/Wi≤6where:Liisthelargestdimensionofacast-in-placebarrettepileandWiistheleastdimensionofacast-in-placebarrettepile(seeFigure2);—leastdimension≥0,3mforprecastelementsusedinbarrettepilesorpiles:DP≥0,3mandWP≥0,3mrespectivelywhere:DPisthediameterofacircularprecastelement;WPisthethicknessofarectangularprecastelement;—rakegenerally:n≥4(≥76°)(seeFigure4);—rakeforpermanentlycasedpiles:n≥3(≥72°);—baseenlargementsorcross-sectionalareaofbarrettepiles:A≤10m;6ShaftorbaseenlargementscoveredbythisEuropeanStandardare:—baseenlargementsinnon-cohesiveground:—DB/D≤2and—incohesiveground:DB/D≤3;—shaftenlargementsinanyground:DE/D≤2;—slopeoftheenlargementinnon-cohesiveground:m≥3and—incohesiveground:m≥1,5(seeFigure3).7TheprovisionsofthisEuropeanStandardapplyto:—singlepiles;—pilegroups(seeFigure5);—wallsformedbypiles(seeFigure6).8ThepileswhicharethesubjectofthisEuropeanStandardcanbeexcavatedbycontinuousordiscontinuousmethodsusingsupportmethodsforstabilizingtheexcavationwallswhererequired.9ThisEuropeanStandardappliesonlytoconstructionmethodsthatallowthedesignedcross-sectionstobeproduce.10Theprovisionsapplytopileswherethebearingmemberisconstructed:—ofunreinforced(plain)concrete;—ofreinforcedconcrete;—ofconcretereinforcedbymeansofspecialreinforcementsuchassteeltubes,steelsectionsorsteelfibres;—ofprecastconcrete(includingprestressedconcrete)elementsorsteeltubeswheretheannulargapbetweentheelementortubeandthegroundisfilledbyconcrete,cementorcement-bentonitegrout(seeFigure7).11Micropiles,mixed-in-placecolumns,columnsconstructedbyjetgrouting,groundimprovementforpiling,mixed-in-placepilebasesanddiaphragmwallsarenotcoveredbythisEuropeanStandard.
【中国标准分类号】:P97
【国际标准分类号】:93_020
【页数】:83P.;A4
【正文语种】:英语