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ID:67634538
大小:26.50 KB
页数:5页
时间:2021-09-15
《扬巴污水提升泵站压密注浆施工组织设计方案》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
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
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