PAGE\*MERGEFORMATI摘要本设计是厦门市夏融大酒店深基坑支护与施工的设计。拟建场区属于平缓低丘地貌，该场地内土层较为简单，笼阔分为四层土，基坑矩形施工面积为1500平方米，基坑东西方向50米，南北方向30米，开挖深度为7米，地下水位按0.9米计算。结合本工程地质、周边环境、以及开挖深度等因素确定安全可靠的基坑支护类型。本设计分为两部分进行设计，即BC、CD段和AB、AD段，采用钻孔灌注桩的基坑开挖深度为7米，桩长分别为12米和11.5米。另外用锚杆作为支撑作用体系，同时本设计由于地下水位较浅，还要采用井点降水方法进行降水，并进行基坑监测以保证工程的顺利进行。关键词：深基坑支护；钻孔灌注桩；锚杆支撑；基坑监测方案；井点降水PAGE\*MERGEFORMATIVAbstractThisdesignisthedesignofthedeepfoundationpitsupportingandtheconstructionoftheLeGrandLargeHotelinXiamencity.Proposedfieldbelongtothegentlelowhilly,withinthesitesoilissimple,cagebroadpointsforfourlayerofsoil,rectangularexcavationconstructionareaof1500squaremeters,50meterseast-westdirectionoffoundationpit,30metersnorth-southdirection,excavationdepthof7meters,undergroundwaterleveliscalculatedfor0.9meters.Combinedwiththeengineeringgeology,thesurroundingenvironment,andtheexcavationdepthandotherfactorstodeterminethesafeandreliablefoundationpitsupportingtype.Thisdesignisdividedintotwoparts,namelyBC,CDsectionandAB,ADsegment,theexcavationdepthofthefoundationpitis7meters,thelengthofthepileis12metersand11.5metersrespectively..Alsowithaboltasasupportsystem,alsothedesignbecauseoftheshallowundergroundwaterlevel,butalsobywellpointdewateringmethodofprecipitation,andfoundationpitmonitoringtoensuretheprojectiscarriedoutsmoothly.Keywords:deepfoundationpitsupport,boredpiles,anchorsupport,foundationpitmonitoring,wellpointprecipitation目录TOC\o"1-3"\h\uHYPERLINK\l_Toc28020第一章绪论PAGEREF_Toc280201HYPERLINK\l_Toc216451.1问题的提出PAGEREF_Toc216451HYPERLINK\l_Toc238921.2研究状况PAGEREF_Toc238921HYPERLINK\l_Toc266841.3研究的目的与意义PAGEREF_Toc266841HYPERLINK\l_Toc311021.4本设计的主要工作和设计思路PAGEREF_Toc311021HYPERLINK\l_Toc27451.4.1计算内容PAGEREF_Toc27452HYPERLINK\l_Toc141301.4.2设计内容PAGEREF_Toc141302HYPERLINK\l_Toc173371.4.3设计思路PAGEREF_Toc173372HYPERLINK\l_Toc4349第二章原始资料PAGEREF_Toc43493HYPERLINK\l_Toc57842.1工程概况PAGEREF_Toc57843HYPERLINK\l_Toc1120