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1、莆田正荣·金融财富中心A地块商业区基坑支护设计莆田正荣·金融财富中心A地块商业区基坑支护设计摘要本文的基坑支护设计是为正荣·金融财富中心A地块一期基坑支护工程设计。该基坑采用排桩咬合桩+锚杆支护，建筑采用两层地下室其开挖深度为10.5m，东南角设有一层地下室其开挖深度为4.6m，并对基坑进行降水处理。本设计是根据国家现行基坑工程设计规程和建筑基坑支护技术规程，在给定已知的勘察报告，对该工程进行深基坑的支护设计，本工程的重点在于支护形式的选择，本设计主体采用了钻孔灌注桩+锚杆的基坑支护形式。在主动土压力的计算中，运用了
2、朗肯土压力理论；在钻孔灌注桩的内力值计算中，运用了等值梁法和结构力学上的超静定梁模型；而对于各结构的配筋计算，是参照了混泥土结构设计规范；在基坑监测中，是参照了建筑基坑监测技术规范：在降水处理设计施工时参照了建筑基坑支护技术规程；整个基坑内力计算过程中，大量的计算参数根据实践经验进行修改，实现理论和实践相结合，理论促实践，实践印理论。关键词：基坑支护；钻孔灌注桩；锚杆；基坑监测；降水处理85莆田正荣·金融财富中心A地块商业区基坑支护设计Designfinancialwealth center businessdist
3、rict A plots offoundationpitsupport DaMasakaeAbstractInthispaper,thedesignoffoundationpitsupportingisRonfinancialwealthcenterAblock1FoundationPitEngineeringdesign.Theexcavationpilesecantpileandbolting,buildingthetwostoreybasementexcavationdepthis10.5m,thesouthe
4、astcornerofabasementexcavationdepthis4.6m,andthefoundationpitprecipitationprocess.Thedesignisbasedonthe specificationfordesignof currentnationalexcavationand foundationpit supportingtechnicalspecification, giveninthe surveyreport known, fordeepfoundationpit sup
5、portdesign of theproject, thefocusofthisproject isto supportform choice, the designofthemainuseof theboredpile plus anchor bracingstructureoffoundationpit. Inthe calculationofactiveearth pressure, using theRankine'searthpressuretheory; inthe internalforce ofbor
6、edpilecalculation, using the equivalentbeammethod andthestructuralmechanics of staticallydeterminate beammodel; andforthe reinforcementof the structurecalculation, isareferencetothe mixed codefordesignof soil structure inthe foundationpit monitoring;, isarefere
7、ncetothe technicalcodeforbuilding foundationpitmonitoring: inprecipitation treatmentdesignandconstruction referencefortheconstructionoffoundationpit supportingtechnicalspecification; theinternalforce calculation offoundationpit intheprocessofcalculation paramet
8、ers, aremodified accordingtotheexperienceofthepractice, toachieveacombinationoftheory andpractice, promotethepracticeoftheory, practice theoryof india.Keywords: foundationpi
