1、污水晋升泵站压密注浆施工方案一、 媒介Preface污水晋升泵站压密注浆要紧针对其基坑底板下部的约厚的粉土，因其底板呈路径部，部份土体滑动，构成部份底板与其下部粉土的别离，而构成空泛，如今通过现场勘探，因破害处为163。因而恳求采纳注浆方法进展土体加固。ThisplanismainlyaimedataboutTHKpowdersoilinthebottomslaboffoundationpit.Asthebottomslabisinastepandpartofthesoilisslided,someslabsareseparatedfromthepowdersoil.Sothehollowst
2、urnup.Afterthesiteinvestigation,asthebrokenareais16x3x,methodofgroutingshouldbeadoptedforthesoilstrengthening.二、 压密注浆方法MethodologyforCompactionandGrouting该工程基坑底板现已浇注成功，依照现场的毁坏水平及以往的施工经历，先通过人工方法在底板开孔，而后依照水灰比0.50.6的方案进展搅拌水泥浆，再将搅拌平均的水泥浆用机器方法输出孔洞中，已到达加固地基土为目的。Thebottomslabinfoundationpithasbeensuccessfu
3、llyplaced.Accordingtothedamagedegreeandourconstructionexperience,firstlywewillmakeholebymanpower,secondlymixcementmortarinawatercementratioof0.50.6.Thencementmortarwillbeconveyedintoholesbymachinetomeettherequirement.三、 施工淮备ConstructionPreparation1、 设置制浆站、加浆站只管增加挪动次数。Establishthemortarprocessstation
4、andaddingstationtominimizethetimesofremoval.2、 装备调试，反省装备运转的情况。Equipmentcommissioning.Andchecktherunningstatusforequipments.3、 备料、搭建水泥存放点。Materialpreparation.Andbuildthestorageforcement.四、 施工方案ConstructionPlan1、 施工装备：水泥浆压力泵一台；泥浆搅拌桶一台；储浆桶一只；注浆杆一根；注浆管50m。ConstructionEquipments:Onecementmortarpressurepu
5、mp.Onebucketforcementmortarmixing.Onebucketforstorage.Onepoleformortarfillingand50mconduit.2、 职员构造：施工现场在施工工程司理部的指导下，另配压密注浆现场施工担任人1人，纯熟压密注浆工6人。StaffOrganization:AllsitestaffshallbeguidedbyP.M.,withonesiteconstructionsupervisorand6competentandexperiencedworkersforcompactionandgrouting.五、 施工技巧恳求Constru
6、ctionTechnicalRequirements1、技巧恳求：TechnicalRequirements因施工地块现已浇注混凝土底板，固采纳风镐进展人工开孔，孔距为2.0m，呈梅花形布孔，如此有利于浆液充填。Asthesitehasbeenplacedwithconcrete,holeswillbemadebymanpowerwithairpick.Theseholeswillbeinaplumblossomshape,withclearanceof2.0m1.5mtofacilitatethefullfilling.压浆装备采纳200型高压泵注浆，机器能源采纳自备柴油机能源，此泵最年夜压
7、力可到达8MPa。200typeHPpumpandselfowneddieselgeneratorwillbeused.Themaximumpressureofpumpis8MPa.注浆时应采纳跳越注浆，如此可使浆液充填密实。Itwillbegroutedinskiptomeetthedensityrequirement.2、 工艺流程：WorkmanshipFlowChart人工依尺寸成孔搅拌水泥浆液小压力注浆待初凝后再度注浆封孔。ManualHolesMakingAsSizedCementMortarMixingGroutingwithLPSecondGrouting(Afteritisg
8、enerallyconsolidated.)SealHoles3、 注浆技巧恳求：TechnicalRequirementsforGrouting1) 水泥浆液配制水灰比0.50.6；初次注浆时压力操纵在0.20.3之间；待12小时后，再次注浆，二次注浆压力不得超越0.5MPa。以防止压力过年夜，构成基坑底板的毁坏，注浆时可依照现场施工情况下调剂注浆压力。Thewatercementratiois0.50.6.Intheinitialgrouting,thepressureshouldbecontrolledwithin0.20.3.Itwillbesecondlygroutedafter12
9、h.Thesecondtimepressurecannotexceed0.5MPatoavoidthedamageforbottomslab.Thepressurecanbeadjustedaccordingtotheactualcondition.2) 浆液配制采纳425#一般硅酸盐，注浆量以浆满出底板为止。425#Portlandcementwillbeusedformixing,withthewatercementratioof0.50.6.Theareamustbefilledtillthemortarexceedsthebottomslab.3) 注浆管采纳高压注浆管，讨论处应保障可
10、接受1.0MPa的压力。HPgroutingconduitshallbeused.Pressureintheendshouldbear.4) 二次注浆后，应实时进展无效封孔，同时在泥浆搅拌时应进展充分搅拌，搅拌时间不小于五分钟。Afterthesecondgrouting,holesshouldbeblockedinatimelymanner.Andcementmortarmustbecompletelymixed,nolessthan5minutes.5) 注浆进程中应时辰不雅看现场情况，以便操纵注浆量与注浆压力，免得对根底底板构成不用要的毁坏。Intheperiodofgrouting,t
11、akecareofthesiteconditionforthequantityandpressurecontrol.六、 质量保障方法QualityAssuranceMeasures1、 树破以工程担任为主的质量治理系统，严峻落实各工序质量责作任制。Establishthequalitymanagementsystemandcarryouttheresponsibilitysystemforeachprocedure.2、 细心不雅看现场施工情况，并做好现场施工记载。Carefullyinvestigatetheconstructionconditionandmakerecords.3、 坚决
12、履行质量反对权轨制，分歧格的分项任务坚决返工，加强分项工序的反省。Strictlyinsistonthequalityvetosystem.Theunacceptableworkmustbeproperlydoneagain.Strengthenthecheckforsub-items.4、 工程全体完毕后，提交施工材料。Constructiondocumentswillbesubmittedoncompletion.七、 平安方法SafetyMeasures1、 以工程担任工资首，各施工职员坚决履行现场施工治理人的治理，遵守厂规及各项轨制。HeadedbyProjectResponsible,allsitestaffwillbesticktothecompanyregulationandallsafetysystems.2、 各工序、工种严峻按响应的平安规那么功课，严禁“三违施工。Allcraftsandproceduresshouldstrictlyfollowsafetyrules.“ThreeDisobeyedConstructionsareforbidden.说明G以上。联络：