大直径钢筋混凝土桩抗拔试验方案的研究和应用

1、GUANGDONGARCHITECTURECIVILENGINEERING201411JAN2014No．1ResearchandApplicationinPulloutTestSchemeofLarge-diameterReinforcedConcretePileLiaoJianjun（GuangzhouRailway（Group）CorporationGuangzhou510088，China）Abstract：Becausepulloutforceoflargediameterreinforcedconcretepileisoftenlarge，matureandsecurityschemesofpullouttestrelativelyarecomplexandexpensive.Bywayoftheactualprojectcases，introducesarelativelysimple，safeandinexpensivetestscheme，andtheschemehasthesignificanceofgeneralizedapplying.Keywords：largediameterpile；pullouttestscheme；applying廖建军（广州铁路集团公司广州510088）：大直径钢筋混凝土桩抗拔力值往往很大，常见安全成熟的抗拔试验方案比较复杂且成本较高，文中通过实际工程案例，介绍一种相对简单、安全和成本低廉的试验方案，该方案具有普遍推广运用意义。大直径桩；抗拔试验方案；运用。、、、。1DK50+360～720f120035m4m2800kN。22.1①、、②、、③。2.21。2、。3645kNmm02605207801040130015603120286026002340208018200246810121416115.21mm8.83mm58.1%。kNminmm0000.000.005601201200.670.678401202400.641.3111201203600.772.0814001204800.973.0516801206001.564.6119601207201.606.2122401208401.707.9125201209602.4610.37280012010804.8415.212240601140-0.9814.231680601200-1.5912.6401801500-2.296.381120601260-2.2310.41560601320-1.748.67JAN2014No．12014112.32～3。①、、②1、、③④。⑴。⑵。⑶《》［1］《》［2］。⑷。2.420125DK50+360～7202800kN4。15。33.1。3.2、、、。3.3。1GB50010-2010S2JGJ18-2012S23、②②②①①37