2023NO.4建筑与土木SCIENCE&TECHNOLOGYINFORMATION科技资讯科技资讯SCIENCE&TECHNOLOGYINFORMATION高压旋喷桩试桩专项施工方案王俊华徐铜鑫(中钢集团郑州金属制品研究院股份有限公司河南郑州450001)摘要：高压旋喷桩加固是利用水泥浆喷至土层并与土体融合，采用水泥作为固化剂加固土体，形成搭接连续的水泥加固体，以增加地基的承载力，具有振动小、设备体积小、噪音较低等优势。高压旋喷桩施工技术具有自身显著特点，其在市政工程中的应用范围包括公路、铁路、市政道路，房建地基处理、工程加固、基坑处理等。施工中应做好施工准备工作，水泥土配合比设计，对钻机就位、钻进成孔、插管及水泥浆配置、喷射作业及清孔等各环节加强质量控制。关键词：高压旋喷桩市政工程施工方案地基处理试桩选择中图分类号：TU753.3文献标识码：A文章编号：1672-3791(2023)04-0056-04TheSpecialConstructionSchemeforPileTestingofHigh-PressureJetGroutingPileWANGJunhuaXUTongxin(SinosteelZhengzhouMetalProductsResearchInstituteCo.,Ltd.,Zhengzhou,HenanProvince,450001China)Abstract:Thereinforcementofhigh-pressurejetgroutingpileistousecementslurrytosprayintothesoillayerandfusewiththesoil,usescementasthecuringagenttostrengthenthesoilandformsalapcontinuouscementso‐lidifiedbodytoincreasethebearingcapacityofthefoundation,whichhastheadvantagesofsmallvibration,smallequipmentvolumeandlownoise.High-pressurejetgroutingpileconstructiontechnologyhasitsownremarkablecharacteristics,anditsapplicationscopeinmunicipalengineeringincludeshighways,railways,municipalroads,housingfoundationtreatment,engineeringreinforcement,foundationpittreatment,etc.Duringtheconstruction,itisnecessarytopreparefortheconstructionanddesignthemixratioofcementandsoil,andstrengthenthequalitycontrolofbothdrillingriginposition,drillinghole,intubationandcementslurryconfiguration,jettingoperationandholecleaning.KeyWords:High-pressurejetgroutingpile；Municipalengineering；Constructionscheme；Foundationtreatment；Selectionoftestpiles1编制依据（1）中交第四航务工程勘察设计院有限公司提交的《设计图纸（详勘阶段）》；（2）甲方提供的“施工总承包单位选聘项目施工图”；（3）《建筑桩基技术规范》（JGJ106-2014）；...
