基坑面積約8004.38周長(zhǎng)為470.71msmw工法樁加內(nèi)支撐結(jié)合復(fù)合土釘墻深支護(hù)設(shè)計(jì)計(jì)算書(shū)、cad任務(wù)書(shū)開(kāi)題報(bào)告

河西地塊基坑支護(hù)設(shè) ，擬建工程主體結(jié)構(gòu)：建筑物下設(shè)有一層室室墊層底標(biāo)高為-5.8m，局部機(jī)械停車車庫(kù)墊層底標(biāo)高為-7.2m。擬采用預(yù)應(yīng)力管樁基礎(chǔ)?；用娣e約8004.38m2470.71m。本基坑工程以自然地面為假定±0.00，所注，土方開(kāi)挖和室施工創(chuàng)造一個(gè)安全干燥的施工環(huán)境考慮到鄰近坑邊有建筑和LMNO、WXYZA1A段采用SMW支護(hù)樁加一層鋼筋砼支撐作為支護(hù)結(jié)構(gòu)其余段采用三軸攪拌樁1:1；基坑外側(cè)采用管井降低止水帷幕外側(cè)水頭，坑內(nèi)采用管井降低水位SMW SMW工 復(fù)合土 鋼筋混凝土支撐三 攪拌ThedesignforfoundationpitofshijiazhuangblockinTheproposedbuildingincludsabasement.thebottomelevationofthebasementcushionis-5.8meters,forsomepartialmechanicalparkinggarage,thebottomelevationis-7.2meters.Pre-stressedpipepilefoundationsaretobeadopted.Theareaofthefoundationpitisapproximay8004.38squaremeters,theperimeterofwhich470.71meters.Thisfoundationpitprojecttakesthenaturalgroundasthehypothesis±0.00,whichisrelativelyNoteelevationofthiselevation.Theaveragelevelofthenaturalgroundis+6.2meters.Consideringofthegeologicenvironment,excavationdepthofthefoundationpit,tocreateansafeanddrysurroundingsfortheearthworkandbasement,wecarryoutthedesignincontrolofdisplacementdeformation,inordertokeepthemaintrafficroadsandbuildingssafeandtoarrangepipelinesofwater,electricityandcoalgasbelowthesurface.Accordingwithfundamentaltechnicalstandard,approachingsafereliability,theeconomical-reasonableandconvenientconstructionandguaranteeingprojecttimelimit，weuseSMWguardstakesasretainingstructure,reinforcedconcretebracingasbracingstructureforLMNO,WXYZA1Asectionandusetriaxialdeepmixingpilescombinedwithcompositesoilnailwallasasupportstructureforothersections.slopetreatmentisusedinthedeeppitboundaries.Thegradientis1:1.Withthepurposeofdewatering,weusetubewells.Beforethedesign,IimakessomeintroductionaboutthetwonewformsofwhichareSMWmethodandCompositesoilnailingthencarrysonwiththetwoshoringformsindetailrespectivelybyhandandbycomputer。Italsocarrysouttherequestofconstructionandtheprojectofsurveyanddrawsichnography,sectionaldrawing,thedrawing.SincethereisnosoftwarecanconsiderthefunctionofthemixingpileintheCompositesoilnailing,itueseanotherdesign