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1、WORD格式整理版摘要本设计主要讲兰州翠庭大厦深基坑支护工程。该基坑建筑面积53628m2,开挖深度分别为12米,5米,8米,根据场地的土层条件及兰州市类似基坑工程的经验,为保证基坑的稳定性及尽量节省投资,经方案比选,拟采用土钉墙技术联合排桩+锚杆对该基坑进行支护。 首先根据实际工程,选取了5个典型部位并根据建筑基坑支护规程及其他文献对分别对土钉支护和排桩支护进行了定量分析计算,绘制了设计成果图。其次在整个设计过程中,结合了理论研究、工程实例经验和理正深基坑设计软件来分析确定设计参数,并进行了复核验算。对土钉支护结构主要进行了内部稳定性验算和外部稳定性验算,外部
2、稳定性验算包括抗滑稳定性验算和抗倾覆稳定性验算。对排桩支护结构主要进行了整体稳定性验算、抗倾覆稳定性验算和抗隆起稳定性验算。再次,针对整个基坑工程进行了施工组织设计和概预算,确定了合理的施工方案和资源配置的组织。最后,对该基坑范围内选择一个12层建筑进行了基础处理的设计,并绘制了桩基础平面布置图,确定了桩基础方案为桩径为0.8m,桩长18m,桩间距为1.75m,桩数量为40个。关键词:基坑支护;土钉墙;排桩支护;施工组织设计;桩基础学习参考好帮手WORD格式整理版AbstractThisdesignismainlyaboutdeepfoundationpitsu
3、pportingprojectofLanzhouCuitingmansion.Thefoundationpitconstructionareaof53628m2,theexcavationdepthwas12meters,5meters,8meters,accordingtothesiteandsoilconditionssimilarexcavationworksexperienceofLanzhouCity,toensurethestabilityofthepitandsavinginvestment,afterschemescomparison,plans
4、tousethetechnologyofsoilnailingwallandpilesandanchoronthefoundationpitsupport.Firstly,accordingtotheactualengineering,selected5typicalpartsaccordingtotheconstructionoffoundationpitsupportingproceduresandotherdocumentsofsoilnailingandpilesupportisanalyzedandcalculatedquantitatively,dr
5、awingthedesignresultmap.Secondly,inthewholeprocessofdesign,combinedwiththetheoreticalresearch,engineeringpracticeandLizhengdeepfoundationpitdesignsoftwaretoanalysistodeterminethedesignparameters,andthechecking.Onthestructureofsoilnailingischeckingthestabilityandexternalstabilityofint
6、ernal,externalstabilitycheckingincludingantislidingstabilitycalculationandcheckingthestabilityofantioverturning.Therowpileretainingstructuremainlyhascarriedontheoverallstabilitychecking,antioverturningstabilitycheckingandantiheavestabilitychecking.Thirdly,accordingtothefoundationpite
7、ngineeringdesignoftheconstructionorganizationandbudget,determineareasonableconstructionplanandtheallocationofresourcesorganization.Finally,thechoiceofan12storeybuildingofthefoundationpitscopeofthedesignoffoundationtreatment,andthepilefoundationlayout,thepilefoundationschemesforthepil
8、ediameteris0