DBJ46-026-2021 海南省螺杆灌注桩技术标准（中英文双语版）

海南省工程建设地方标准海南省螺杆灌注桩技术标准TechnicalstandardforpartGscrewpileinHainanDBJ46—026—2021主编部门:海南省住房和城乡建设厅批准部门:海南省住房和城乡建设厅海南省住房和城乡建设厅关于发布«海南省螺杆灌注桩技术标准》的通知工、监理单位,其他有关单位及个人:理、安全适用、保证质量、保护环境,我厅组织相关单位对原«螺杆灌注桩技术规程»DBJ46—026—2013进行了修订.修订后标准名称为«海南省螺杆灌注桩技术标准»,并经专家评审通过,作废.海南省住房和城乡建设厅1螺杆灌注桩技术是在吸收了AJ桩(一种由混凝土和钢纤维预制而成的全螺纹桩)、全螺纹灌注桩等技术优点的基础上,由我国自主创新的一种涵盖桩、成桩设备、成桩工法于一体的异型灌注桩专利技术.该技术对传统桩工艺技术进行了关键性变革,具有以下技术特征:(1)成孔成桩均一次性完成,杜绝了因孔壁塌方造成的安全质量事故;(2)桩身带有螺纹形构造,显著提高了基桩承载力;(3)施工高效,用材节约,可有效降低工程造价;(4)施工微取土、无须泥浆护壁、噪声和震动较小.本标准是在«螺杆灌注桩技术规程»(DBJ46—026—2013)的基础上进行补充、修改和完善的.在修订过程中,总结了全国各地螺杆灌注桩的设计、施工经验,并广泛征求了勘察、设计、施查定稿.本次修订的主要内容包括:总则、术语和符号、基本规定、勘本次修订增加的内容主要有:带扩大体螺杆灌注桩设计、嵌岩时螺杆灌注桩设计、抗拔承载力设计等.本标准的某些内容涉及“半螺丝桩及其成桩工法”(专利号2问题,使用者可直接与专利权人协商处理,本标准的发布机构不承担识别这些专利的责任.本标准由海南省住房和城乡建设厅负责管理,由海南省建解释.本标准在执行过程中如有意见和建议,请随时将有关意见和建议反馈至海南省建设标准定额站(地址:海南省海口市美EQ\*jc3\*hps20\o\al(\s\up6(兰区),邮箱)EQ\*jc3\*hps20\o\al(\s\up6(白),b)EQ\*jc3\*hps20\o\al(\s\up6(龙),zk)EQ\*jc3\*hps20\o\al(\s\up6(南),d)EQ\*jc3\*hps20\o\al(\s\up6(邮),g)EQ\*jc3\*hps20\o\al(\s\up6(电话),今后)主编单位:海南有色工程勘察设计院海南卓典高科技开发有限公司参编单位:海南柏森建筑设计有限公司主要起草人员:杨武彭桂皎冯春燕杨永康谭燕姬张明周中刘德华陈海同主要审查人员:唐建中刘焕存邢启民黄雪峰魏武卫宏李社青1 2术语和符号 3基本规定 5桩基设计 5.3单桩竖向极限承载力 5.4桩身承载力 5.5单桩竖向抗拔承载力 5.6单桩水平承载力 6复合地基设计 8质量检验与验收 8.2施工前检验 8.3施工过程检验 8.4施工后检验 28.5工程质量验收 附录A螺杆灌注桩示意图 附录B螺杆灌注桩桩型 附录C组合式齿状螺纹钻具 附录D螺杆灌注桩成桩工艺过程示意图 附录E螺杆灌注桩扩大体工艺示意图 附录F消除挤土效应的屏障技术示意图 附录G螺杆灌注桩施工记录表 附录H螺杆灌注桩设计说明 本标准用词用语说明 引用标准名录 条文说明 ofHainanProvincePDBJ46—026—2021TechnicalstandardforpartGscrewpileinHainan(ShouldtherebeanyinconsistenciesbetweenChineseandEnglishversions,theChineseversionshallpIssuebyHainanProvincialDepartmentofEngineeringconstructionstandardofHainanProvinceTechnicalstandardforpartGscrewpileinHainanDBJ46—026—2021Chiefdevelopmentdepartment:HainanProvincialDepartmentofHousingandUrbanGRuralDevelopmentApprovaldepartment:HainanProvincialDepartmentofHousingandUrbanGRuralDevelopmentImplementationdate:March1,2022ForwardBasedonthetechnicaladvantagesofAJpile(akindoffullythreadedpileprefabricatedwithconcreteandsteelfibers)patenttechnologyofspecialGshapedfillingpilepatenttechnologyofspecialGshapedfillingpilecoveringthepileproduct,thepileformingequipmentandthepileformingmethod,whichisinnovatedindependentlyinChina．Ithasmadekeychangestothetraditionalpiletechnologyandhasthefollowingtechnicalcharacteristics:(1)Holeformingandpileformingcanbecompletedatonetime,preventingsafetyandqualityaccidentscausedbythecollapseoftheholewall;(2)Thepilebodyhasathreadedstructure,whichsignificantlyimprovesthebearingcapacityofthepile;(3)Theconstructionisefficient,thematerialissaved,andtheprojectcostiseffectivelyreduced;(4)Intheconstructionprocess,theworkloadofsoilwithdrawingissmall,nomudwallprotectionisrequired,andthenoiseandvibrationarewellcontrolled.Thisstandardissupplemented,modified,andimprovedon026—2013)．Inthedevelopmentprothebasisof＂TechnicalCodeforHalfG026—2013)．InthedevelopmentproscrewpileinChina．AndithasextensivelysolicitedtheopinionsscrewpileinChina．Andithasextensivelysolicitedtheopinionsofrelevantunitssuchassurvey,design,construction,scientificresearchanrevisions,thefinaldraftwasreviewedandfinalized.Themaincontentsoftherevisionofthisstandardinclude:generalprovisions,termsandsymbols,basicrequirements,TherevisedandaddedcontentsofthisstandardmainlypartGscrewpileembeddedinrock,designofupliftpartGscrewpileembeddedinrock,designofupliftcapacity,etc.EQ\*jc3\*hps20\o\al(\s\up0(a),＂)EQ\*jc3\*hps20\o\al(\s\up0(a),＂)Equipmentnegotiatewiththepatenteesforspecifictechnicalproblemsinvolvingpatentsmentionedabove,andtheissuingbodyofthisstandardshallnotbeheldresponsibilityforidentifyinganyorallsuchpatentrights.DepartmentofHousingandUrbanGRuralDevelopmentofHainanProvinceisinchargeoftheadministrationofthisstandard．ConstructionStandardandQuotaStationofHainanProvinceoverseestheroutinemanagement,andthechiefdevelopmentorganizationisresponsibleforthespecificexplanationofspecifictechnicalcontents．Duringtheprocessofimplementingthisstandard,therelevantopinionsandadvice,whenevernecessary,canbepostedorpassedontoConstructionStandardandQuotaStationofHainanProvince(Address:No.77BailongSouthRoad,MeilanDistrict,HaikouCity,HainanEQ\*jc3\*hps20\o\al(\s\up3(Pro),dez)EQ\*jc3\*hps20\o\al(\s\up3(v),＠)EQ\*jc3\*hps20\o\al(\s\up3(nce),hai)EQ\*jc3\*hps20\o\al(\s\up3(zi),n)EQ\*jc3\*hps20\o\al(\s\up2(p),g)EQ\*jc3\*hps20\o\al(\s\up3(co),ov)EQ\*jc3\*hps20\o\al(\s\up3(e),c)ChiefDevelopmentOrganizations:EQ\*jc3\*hps20\o\al(\s\up6(Ha),Par)EQ\*jc3\*hps20\o\al(\s\up6(nanZh),ticipati)EQ\*jc3\*hps20\o\al(\s\up6(u),n)EQ\*jc3\*hps20\o\al(\s\up6(o),g)EQ\*jc3\*hps20\o\al(\s\up6(d),D)EQ\*jc3\*hps20\o\al(\s\up6(an),ev)EQ\*jc3\*hps20\o\al(\s\up6(H),lo)EQ\*jc3\*hps20\o\al(\s\up5(g),p)EQ\*jc3\*hps20\o\al(\s\up6(h),m)EQ\*jc3\*hps20\o\al(\s\up6(ec),nt)EQ\*jc3\*hps20\o\al(\s\up6(h),O)EQ\*jc3\*hps20\o\al(\s\up6(D),r)EQ\*jc3\*hps20\o\al(\s\up6(e),g)EQ\*jc3\*hps20\o\al(\s\up6(velopmen),anizations)HainanBosenArchitecturalDesignCo．,LtdChiefDraftingStaff:YanjiTan,MingZhang,ZhongZhou,DehuaLiu,HaitongChenChiefExaminers:JianzhongTang,HuancunLiu,QiminXing,XuefengHuang,WuWei,HongWei,SheqingLiContents1Generalprovisions 2Termsandsymbols 2.1Terms 3Basicrequirements 4Geotechnicalinvestigations 5DesignofpartGscrewpilefoundations 5.1Generalrequirements 5.2Structuralmeasureoffoundationpile 5.3Ultimateverticalbearingcapacityofasinglepile 5.4Pilebearingcapacity 5.5Verticalupliftcapacityofasinglepile 5.6Lateralloadcapacityofasinglepile 6Designofcompositefoundation 7Construction 7.1Basicrequirements 7.2Constructionpreparation 7.3Constructionprocess 7.4Constructioncontrol 8Qualityinspectionandacceptance 8.1Generalrequirements 8.2PreGconstructioninspection 8.3Inspectionduringconstruction 8.4PostGconstructioninspection 8.5Acceptanceofengineeringquality APPENDIXCAssembledtoothedthreaddrillingtools EQ\*jc3\*hps20\o\al(\s\up7(APPENDIXA),APPENDIXB)EQ\*jc3\*hps20\o\al(\s\up7(D),P)EQ\*jc3\*hps20\o\al(\s\up7(et),le)EQ\*jc3\*hps20\o\al(\s\up7(il),ty)EQ\*jc3\*hps20\o\al(\s\up7(