预应力螺锁式预制方桩工程施工技术研究 .pdfVIP

预应力螺锁式预制方桩工程施工技术研

究

摘要：近年来，随着我国经济突飞猛进的发展，科研创新方面较为突出，新

型预制方桩接桩工艺层出不穷，例如螺锁式连接预应力混凝土方桩、弹卡式连接

预应力混凝土方桩、销钉机械连接预应力混凝土实心方桩等等。其中螺锁式因接

桩工艺便于实际操作，施工速度快，成本低等特点，建筑桩基工程中也将会越来

越多地采用该种桩基础。目前，在钢筋混凝土预制方桩施工过程中，方桩的施工

一般采用静压法，而由于监测方法、地质条件、施工方式、桩基接头质量等多方

面的影响因素，导致桩基工程施工中面临各种潜在质量问题。为了改善钢筋混凝

土预制方桩工程施工的质量，下面结合工程实际，就螺锁式连接预应力混凝土方

桩施工质量的控制进行论述。

关键词：沿海地区；施工技术；螺锁式接头；预制桩；桩基工程；预应力混

凝土

ConstructionTechnologyofPrefabricatedPrestressed

ScrewLockSquarePileConnection

Abstract:Inrecentyears,withtherapiddevelopmentofChinas

economy,scientificresearchandinnovationhavebecomemoreprominent.

Newtypesofprefabricatedsquarepileconnectiontechniqueshave

emergedoneafteranother,suchasscrewlockconnectionprestressed

concretesquarepiles,elasticcardconnectionprestressedconcrete

squarepiles,pinmechanicalconnectionprestressedconcretesolid

squarepiles,andsoon.Thescrewlocktypepileconnection

technologyisconvenientforpracticaloperation,fastconstruction

speed,lowcostandothercharacteristics,sothiskindofPile

foundationwillbemoreandmoreusedinbuildingpilefoundation

projects.Atpresent,intheconstructionprocessofprefabricated

reinforcedconcretesquarepiles,staticpressuremethodisgenerally

usedfortheconstructionofsquarepiles.However,duetovarious

factorssuchasmonitoringmethods,geologicalconditions,

constructionmethods,andthequalityofpilefoundationjoints,

variouspotentialqualityproblemsarefacedintheconstructionof

pilefoundationengineering.Inordertoimprovethequalityofthe

constructionofreinforcedconcreteprecastsquarepiles,the

followingisadiscussiononthecontroloftheconstructionquality

ofscrewlockconnectionprestressedconcretesquarepilesbasedon

theactualengineeringsituation.

Keywords:Coastalareas;Constructiontechnology;Researchonconstructiontechnologyof

pres