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1、技术交底记录表C2-1编号工程名称交底日期施工单位分项工程名称交底提要污水管加固交底内容:一、旋喷桩施工1、旋喷桩施工原理高压旋喷桩是利用钻机把带有特殊喷嘴的注浆管钻进至土层的预定位置后,用高压脉冲泵,将水泥浆液通过钻杆下端的喷射装置,向四周以高速水平喷入土体,借助液体的冲击力切削土层,使喷流射程内土体遭受破坏,与此同时钻杆一面以一定的速度(15-30r/min)旋转,一面低速((35±2)cm/min)徐徐提升,使土体与水泥浆充分搅拌混合,胶结硬化后即在地基中形成直径比较均匀具有一定强度(不小于0.8Mpa)的圆柱体(称为旋喷桩),从而使地基得到加固。二
2、重管法施工就是用同轴双通道二重注浆管复合喷射高压水泥浆和压缩空气二种介质,以浆液作为喷射流,但在其外围裹着一圈空气流成为复合喷射流。本加固段设计桩直径为0.8m,设计桩间距为0.65m,二重管法施工完全满足设计要求。二重管高压旋喷桩施工流程框图施工准备钻机就位调节垂直度钻孔、插管旋喷提升清理机具喷射高压空气喷射高压泥浆转入下一孔位浆液拌制审核人交底人接受交底人1、本表由施工单位填写,交底单位与接受交底单位各保存一份。2、当做分项工程施工技术交底时,应填写“分项工程名称”栏,其他技术交底可不填写。dslopetofacilitateemptying.(1)d
3、uringtheexcavationprocess,feelfreetocheckthestatusofsideslope,verticaldigdepthisgreaterthan1.5M,accordingtothechangesofsoil,excavation(Groove)ortrenchsupportpreparation,topreventcollapse.(2)excavation(Groove)andwhenthetrenchshouldnotdigtothedesignheightofthefollowing,ifnotexactlyd
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5、avationonarainyday,theirworkshouldnotbetoolarge,shouldbedonepiecemeal,bystaging.(2)therainatthetimeofconstructionintheexcavationandearth-movingrequiredgreatattentiontoslopestability.Ifnecessary,theappropriateslowslope,orbraces,whileinthepits(Groove)outsidesurroundedbyEarthenbermso
6、rdiggingditches,preventsurfacewaterfromentering.Alwayscheckontheslope,support,anembankment,identifyproblemsanddealwith.II,backfillEngineering(a)constructionpreparationresearchfieldsiteformation,earthfillconstructionplan,determinethefillline,order,range,slope,drainagelevels,andsoon
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