静压PHC管桩施工挤土效应的机理分析及防治措施

20106144FujianArchitecture&ConstructionNo62010Vol144PHC1,2(1361004;2361005):本文首先分析了静压PHC管桩施工挤土效应的产生杌理及影响范围等,然后结合某工程实例,详细地阐述了静压PHC管桩施工挤土效应的防治措施及其效果检验,并作出相关总结,可供广大工程技术人员参考应用:静压PHC管桩施工挤土效应机理分析防治措施:TU753.3:B:1004-6135(2010)06-0078-03ConstructionofPHCPileStaticSoilcompactioneffectofthemechanismandpreventionmeasuresLinYezhen1,2(1XiamenGaoChengXinConstructionSupervisionCo.Ltd.,361004;2BuildingandCivilEngineering,XiamenUniversity361005)Abstract:ThispaperanalyzestheconstructionofstaticPHCPileSoilcompactioneffectandimpactofhandlingtheproductionRongjiscope,then,anexample,detaileddescriptionofthestaticpressurepipeconstructionPHCSoilcompactioneffectofcontrolmeasuresandtheireffectstest,andtomaketherelevantsum,fortheengineersandtechnicianstitlesKeywords:StaticPHCpileconstructionCompactingeffectMechanismcontrolmeasures:,,1971,,,::2010-04-28090,(PHC),,,PHC,,,PHC:,;;;,PHC,,PHC,,(),,1PHC11PHC,,,,,,,,,,,,,,,,,,,,:1),,,();2),,,;3),,,;4),,,,,;,,,,12,,,,;,4~5;,10~15,20106144PHC79,,1~2;,,,,,50m,,,,221311~15,PHC,:500,425,:15~30m:4m,510m,20057,3:22,,,:12~53m:(m)(MPa)(cm/s)51~8235210-473~10623110-6125~16863510-7134~17070810-3206~25960510-5-221~303255~35023,,,3~10cm,,,40m24,,PHC:1),,,,,,,,,,,,2),,,,,,,,3),,:,,,,3,,(),,,,31:,,;,1/3~1/2,,,,32,;,,,:1),1~2m,1m,2),:400~600,:10~15m,:05~10m,33,,,,:100~200,1/3~1/2,,34,,,,,,,,70%,1/3~1/2,(:300~400mm,:10~20m),,,20106144PHC8035,,,,,,:,;,,;(),()36,,,,,,,,,,():,,,10,,,,37,PHC,,:,,:1)();2);3);4)4,(),,PHC,,,,,,,,,,1)(),,(),,;,;,2),,,,,,,,3),(),,,,,,,,,,,,4),,,,,,,,5),,;,,6),(),,(),;(),,,,(),,,7),,5PHC,,PHC,,,[1].[J].,2002(2):61~62.[2],[M].:,2005,7:42~47.[3]DBJ13-86-2007,[S][4]GB5007-2002,[S].[5]JGJ79-2002,[S].[6]GB50202-2002,[S].[7]GB13476-2009,[S]