扬巴污水提升泵站压密注浆施工组织设计方案

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1、污水提升泵站压密注浆施工方案一、前言Preface污水提升泵站压密注浆主要针对其基坑底板下部的约1.8m厚的粉土，因其底板呈阶梯部，部份土体滑动，造成部份底板与其下部粉土的分离，而形成空洞，目前通过现场勘察，因破坏处为16×3×1.8m。因而要求采取注浆方式进行土体加固。Thisplanismainlyaimedatabout1.8mTHKpowdersoilinthebottomslaboffoundationpit.Asthebottomslabisinastepandpartofthesoil

2、isslided,someslabsareseparatedfromthepowdersoil.Sothehollowsturnup.Afterthesiteinvestigation,asthebrokenareais16*3*1.8m,methodofgroutingshouldbeadoptedforthesoilstrengthening.二、压密注浆方法MethodologyforCompactionandGrouting该工程基坑底板现已浇注成功，依据现场的破坏程度及以往的施工经验，先通

3、过人工方式在底板开孔，然后依据水灰比0.5~0.6的方案进行搅拌水泥浆，再将搅拌均匀的水泥浆用机械方式输入孔洞中，已达到加固地基土为目的。Thebottomslabinfoundationpithasbeensuccessfullyplaced.Accordingtothedamagedegreeandourconstructionexperience,firstlywewillmakeholebymanpower,secondlymixcementmortarinawatercementratio

4、of0.5~0.6.Thencementmortarwillbeconveyedintoholesbymachinetomeettherequirement.三、施工淮备ConstructionPreparation1、设置制浆站、加浆站尽量减少移动次数。Establishthemortarprocessstationandaddingstationtominimizethetimesofremoval.1、设备调试，检查设备运行的情况。Equipmentcommissioning.Andcheck

5、therunningstatusforequipments.2、备料、搭建水泥存放点。Materialpreparation.Andbuildthestorageforcement.一、施工计划ConstructionPlan1、施工设备：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:Onecementmortarpressurepump.Onebucketforcementmortarmixing.Onebucketforst

6、orage.Onepoleformortarfillingand50mconduit.2、人员组织：施工现场在施工项目经理部的领导下，另配压密注浆现场施工负责人1人，娴熟压密注浆工6人。StaffOrganization:AllsitestaffshallbeguidedbyP.M.,withonesiteconstructionsupervisorand6competentandexperiencedworkersforcompactionandgrouting.二、施工技术要求Construct

7、ionTechnicalRequirements1、技术要求：TechnicalRequirements因施工地块现已浇注混凝土底板，固采取风镐进行人工开孔，孔距为2.0m~1.5m，呈梅花形布孔，这样有利于浆液充填。Asthesitehasbeenplacedwithconcrete,holeswillbemadebymanpowerwithairpick.Theseholeswillbeinaplumblossomshape,withclearanceof2.0m~1.5mtofacilitat

8、ethefullfilling.压浆设备采取200型高压泵注浆，机械动力采取自备柴油机动力，此泵最大压力可达到8MPa。200typeHPpumpandselfowneddieselgeneratorwillbeused.Themaximumpressureofpumpis8MPa.注浆时应实行跳越注浆，这样可使浆液充填密实。Itwillbegroutedinskiptomeetthedensityrequirement.2、工艺流程：WorkmanshipFlowC