商业广场水泥搅拌桩基础施工技术交底(含示意图)

'施工技术交底通知单单位名称：和县金宝乌江商业广场编号：工程项目水泥搅拌桩工程部位基础接受班组及有关人员水泥搅拌桩施工队工程数量3166根进度要求按项目部要求质量标准参见《建筑地基处理规范》1.桩位偏差：不大于50mm；2.桩径偏差：+0.04D（即：+40mm）；3.桩底标高：+200mm；4.桩顶标高：+100mm，-50mm（桩顶部50cm不计入）；5.垂直度：不大于1.5%；6.桩身强度28天龄期无侧限单轴抗压强度达到1MPa。施工程序及操作要点施工步骤：1施工准备；2桩位放样；3钻机就位；4调整钻架角度；5制备水泥浆；6正循环钻至设计桩底深度；7反循环提钻并喷水泥浆；8重复上下搅拌9桩机移位，下一个循环；操作要点：1施工准备清除施工范围内的障碍物，平整施工场地，做到“三通一平”；合理布置施工现场的水泥库、泥浆罐等位置；检查各种设备机械性能，满足使用要求；提前送检水泥等原材料；根据配合比确定每罐水泥浆拌合量，做好标记；桩机钻杆标记尺度（或安装深度刻盘），便于控制钻进深度；2桩位放样根据搅拌桩的桩位布置图的中心坐标，采用全站仪坐标法进行桩位放样，精确放出中心桩位并打好护桩，用钢尺测放小桩位；水泥搅拌桩打桩顺序详见平面图见附图一。3钻机就位constructionoflifting...Pressuregauges,usinganinstalledsparkarrestorforacetylenecylinders,illegalcarrying,usinggascylinders,eachoperatorfined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment. 施工要点及操作程序钻机导轨垂直于驳岸前沿线方向定位，采用倒退式施工方式。钻机通过导向拉索和移动导轨到达指定位置，对中桩位。当地面起伏不平时，采取措施使桩机设备保持水平。导轨下面需要加垫枕木或钢板，以保持钻机稳定。（钻机移位打桩顺序见示意图三）。4调整钻架角度测量人员利用经纬仪或线锤垂吊交叉测量桩架垂直度，桩机操作人员通过铰拉钢丝绳调整桩架角度，使桩架垂直度达到规范要求。5制备水泥浆开始钻进之前先制备水泥浆，水泥浆按照设计配合比制备，并将水泥浆倒入集料斗备喷。6正循环钻至设计深度（一搅一喷）地面标高约为8.7m。搅拌机冷却水循环正常后，启动搅拌机电机，放松起重机或桩架的钢丝绳，使搅拌机沿导向架切土搅拌下沉，使土搅松，借设备自重和链条拉力正循环进行钻进。下沉速度由电机的电流监测表控制，不同的土层采取不同的转速钻进。根据设计桩长，在钻杆上面做出标记，以控制钻进深度。在搅拌桩钻进到比设计桩顶标高高50cm时，开启泥浆泵，开始喷水泥浆。搅拌头边下沉钻进边喷浆到设计深度后，在桩底停留30s，进行磨桩端；7反循环提钻并喷水泥浆至设计桩顶标高（二搅二喷）搅拌机完成“一搅一喷”之后，边喷浆边旋转边提升（即二搅二喷），提升时用桩机低档位运行，以使水泥浆搅拌尽量充分，直至达到设计要求桩顶标高（比设计要求桩顶标高高出50cm，高出50cm至地面部分不喷水泥浆）。8重复上、下搅拌，完成“四搅四喷”采用“四搅四喷’工艺，为使已喷入土中的水泥浆与土充分搅拌均匀，再次将搅拌头边旋转边喷浆边沉入土中，至设计要求深度后，再将搅拌头边提升边旋转边喷浆，重复搅拌直至完成设计要求的搅拌次数和喷浆量，上升至地面，制桩完毕。自桩顶到地面部分提升时，钻机仍然反循环空钻，直至上升至地面。9桩机移位，下一个循环成桩完毕之后，钻机沿着导轨移动至下一个桩位，重复以上施工。constructionoflifting...Pressuregauges,usinganinstalledsparkarrestorforacetylenecylinders,illegalcarrying,usinggascylinders,eachoperatorfined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment. 质量标准及检测方法质量标准：参见《建筑地基处理技术规范》1．水泥搅拌桩桩体现场取样的取芯率和芯样试件的无侧限抗压强度必须符合有关规定（钻孔取样数量为总桩数的10％，且不少于十根；钻孔取样的取芯率不少于85%，芯样的无侧限抗压强度平均值不低于设计抗压强度标准值）。2.水泥搅拌桩复合地基单桩承载力必须满足设计要求。（检验数量为总桩数的0.5％—1％，且不少于三根；）3.水泥搅拌桩所用水泥的质量应符合国家现行标准的有关规定。4.水灰比和每立方水泥搅拌桩拌合体的水泥用量应满足设计要求和经试验段施工所确定的配合比参数。5.搅拌头的转速、贯入及提升速度、着底电流和水泥浆流量等应符合试验段施工所确定的参数。6.水泥搅拌桩施工的允许偏差、检验数量和方法应符合下表的规定。序号检查项目允许偏差检验单元和数量单元测点检查方法1桩位偏差50mm每根桩（逐根检查）1拉线，用钢尺量纵横方向，取大值2桩径+0.04D每根桩（抽查10%）1用钢尺量3桩底标高+200mm每根桩（逐根检查）1测机头深度4桩顶标高+100mm-50mm每根桩（逐根检查）1用水准仪检查（最上部500mm不计入）5垂直度0.5%每根桩（抽查10%）1用经纬仪或吊线检查注：D为水泥搅拌桩的直径，单位mm。7.水泥搅拌桩钻进至第5层卵石夹粘土，难以继续钻进时，以进入卵石夹粘土层1～3m为宜。constructionoflifting...Pressuregauges,usinganinstalledsparkarrestorforacetylenecylinders,illegalcarrying,usinggascylinders,eachoperatorfined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment. 施工控制措施和注意事项控制措施：1.成桩7d内用轻便触探器钻取桩身加固土样，观测搅拌均匀程度，同时根据轻便触探击数用对比法判断桩身强度。检验桩数量不少于已完成桩数的5%；2.如经触探检验对桩身强度有怀疑的桩，应钻取桩身芯样，制取试块并测定桩身强度；3.地质条件有较大变化处要做单桩静载试验；4.桩的垂直度偏差不得大于0.5%，桩位偏差不得大于50mm；5.对不合格的桩，应采取补桩或加强相邻桩等措施。注意事项1.水泥搅拌桩开钻之前，应用水清洗整个管道并检验管道中有无堵塞现象，待水排尽后方可下钻。2.为保证水泥搅拌桩桩体垂直度满足规范要求，在主机上悬挂一吊锤，通过控制吊锤与钻杆上、下、左、右距离相等来进行控制。桩机桩位必须对中，对中偏差不得大于2cm。3.对每根成型的搅拌桩质量检查重点是水泥用量、水泥浆拌制的罐数、压浆过程中是否有断浆现象、喷浆搅拌提升时间以及复搅次数。4.为了确保桩体每米掺合量以及水泥浆用量达到设计要求，每台机械均配备电脑自动记录仪。同时现场配备水泥浆比重测定仪，以备监理工程师和项目经理部质检人员随时抽查检验水泥浆水灰比是否满足设计要求。5.水泥搅拌桩施工采用“四喷四搅”工艺。第一次下钻和提钻时一律采用低档操作，复搅时可提高一个档位，每根桩的正常成桩时间应不少于40分钟。水泥浆不得离析，停置时间不得超过2小时，若停置时间过长，不得使用。6.为保证水泥搅拌桩桩端、桩顶及桩身质量，第一次喷浆时应在桩底部停留30秒，进行磨桩端，余浆上提过程中全部喷入桩体，且在桩顶部位进行磨桩头，停留时间为30秒。7.施工时应严格控制喷浆时间和停浆时间。每根桩开钻后应连续作业，不得中断喷浆。施工时因故停喷浆，宜将搅拌机下沉至停浆点以下0.5m，待恢复供浆后再喷浆提升。若停机时间超过3h，应清洗管路。严禁在尚未喷浆的情况下进行钻杆提升作业。储浆罐内的储浆应不小于一根桩的用量加50kg。constructionoflifting...Pressuregauges,usinganinstalledsparkarrestorforacetylenecylinders,illegalcarrying,usinggascylinders,eachoperatorfined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment. 安全注意事项1、进入现场必须带安全帽，桩机操作人员等特殊工种应持证上岗；2、注意施工车辆交通安全；3、随时检查钻机钻进情况，观察钻进机身稳定情况，发现危险及时处理，防止事故发生；4、严禁酒后上岗作业，工作期间严禁喝酒；5、开钻区动工前布置好安全防护栏和警示彩旗，严禁无关人等进入桩机作业区；6、钻进过程中始终保证人员不能离开钻机，必须有值班人员；7、夜间施工要有足够的灯光，保证现场视线清晰；8、要定期对设备等进行检修及保养，以保证机械设备的正常使用；9、服从监理、业主及项目部提出的安全要求；10、桩基施工过程中须注意保护施工范围内的电缆和通讯设施，在危险地带设置明显的标志；11、雨季施工中，跟踪收听天气预报，以便及时准备，加强桩机、水泥库的安全围护措施。12、施工现场必须统一指挥，施工过程中不能忙乱，事先做好准备工作好开始施工。主要附件设计图纸结施—02其他施工草图见附件其他配料单见配合比通知单其他水泥搅拌桩施工记录表格项目负责人项目技术负责人安全员质量员交底人交底时间工段长班组签认constructionoflifting...Pressuregauges,usinganinstalledsparkarrestorforacetylenecylinders,illegalcarrying,usinggascylinders,eachoperatorfined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment. 安全技术交底通知单编号：单位工程名称和县金宝乌江商业广场施工内容水泥搅拌桩交底单位中国核工业芜湖基础工程公司接受交底单位水泥搅拌桩施工队一、施工准备阶段1、施工人员必须接受入场安全教育，严格执行项目部的规章制度及安全要求；树立“安全第一”的思想。2、施工人员必须提高安全意识，定时进行安全教育。3、上班时间按规定佩戴安全防护用品，进入工地戴安全帽，高空作业戴安全带，上班时间严禁喝酒。4、组装桩机时，作业人员必须服从统一指挥；吊装设备时，吊机臂下禁止站人；高空作业时必须佩戴安全带，电器操作必须由电工持证上岗。5、水泥库等临时设施必须选择场平地势高的地方搭设，并注意防雨防潮。制拌水泥浆筒埋设坑必须防护到位，避免伤人。6、桩机行进过程中，要注意及时平整场地，操作人员搬运物品时注意避让及协作，避免重物坠落伤人。7、作业区范围要布置好防护栏和警示彩旗等，严禁无关人员进入桩机作业区。二、施工阶段1、施工阶段必须带好安全帽、防滑鞋等安全保护措施。2、严禁酒后上岗作业，工作期间严禁喝酒。3、钻进过程中始终保证人员不能离开钻机，必须有人值班。4、随时检查钻机钻进情况，观察钻进机身稳定情况，发现危险及时处理，防止事故发生；5、夜间施工要有足够的灯光，保证现场视线清晰6、要定期对设备等进行检修及保养，以保证机械设备的正常使用7、桩基施工过程中须注意保护施工范围内的电缆和通讯设施，在危险地带设置明显的标志constructionoflifting...Pressuregauges,usinganinstalledsparkarrestorforacetylenecylinders,illegalcarrying,usinggascylinders,eachoperatorfined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment. 8、雨季施工中，跟踪收听天气预报，以便及时准备，加强桩机、水泥库的安全围护措施。雷雨季节，一定要注意防雷。9、施工期间要注意用电安全，事先检查所有用电设施是否安全。10、施工操作人员必须持证上岗。11、所有施工人员必须经过安全交底后方能进入现场作业。12、施工现场必须统一指挥，施工过程中不能忙乱，事先做好准备工作好开始施工。各班组严格质量意识，必须按技术交底书要求进行控制及施工，严格执行施工程序，严肃工艺纪律。项目负责人主管工程师主办技术员安全员接受交底单位负责人说明：本交底通知单由该主办技术人员制定签发，一式三份，主办技术人员、安全员、接受交底单位负责人各一份。constructionoflifting...Pressuregauges,usinganinstalledsparkarrestorforacetylenecylinders,illegalcarrying,usinggascylinders,eachoperatorfined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment. 图三constructionoflifting...Pressuregauges,usinganinstalledsparkarrestorforacetylenecylinders,illegalcarrying,usinggascylinders,eachoperatorfined20Yuan.Gasbottlewithoutthehotsunexposuremeasures,responsibilitiesofteamafineof50Yuan.(7)atheightandtheopeningandprovisionalprotectivemeasureshavebeentaken,theresponsibleunitfined200Yuan,constructionpersoninchargeafineof50Yuan.(8)nopermittoworkandthejobinaccordancewiththeprovisions,onthejobunitfined300yuan,theunitwillchargeafineof100Yuan.7.5.3accidentpenalties(1)injuriesfatalitiesdirectlypunished1~2million.Directresponsibilityfortheaccidentandhavethecorrespondingresponsibilityofleadership,suchasconcerningadministrativesanctions,shouldbebroughttothecompanyortherelevantDepartment.(2)personalinjuryaccidentoccurred,thedirectpunishment0.5-10,000yuan,responsibleforthedirectresponsibilityfortheaccidentandtheresponsibilityofleadership,suchasconcerningadministrativesanctionsshouldbedealtwithbythepersonnelDepartmentofthecompany.(3)personalinjuryaccidentoccurs,thedirectpunishment500-1000,whoisdirectlyresponsiblefortheaccidentresponsibility,givenoticeofcriticismand50-100economicsanctionsagainstthem.(4)toconcealtheaccident,reportedwithoutunduedelayorfalse,toinformtheadministrativeleadershipofthecriticism,resultinginseriousconsequences,thepursuitofleadership,alongwith500-1000punishment.'