《φ850三轴搅拌桩施工工艺及质量保证措施》由会员分享，可在线阅读，更多相关《φ850三轴搅拌桩施工工艺及质量保证措施（11页珍藏版）》请在金锄头文库上搜索。
1、ndoverallleadershipresponsibilityforsafety.AdministrativeDeputyiswithinthescopeoftheirrespectiveresponsibilitiesatvariouslevelsofsecurityresponsibility,inchargeofsecurityworkinthecontextofleadership,responsibletotheChief.Fifthopenpitproductionsafetyaccidentinvestigationsystem,performedonaproductions
2、afetyaccident“fourno“principle.Imposedonproductionsafetyaccidentreportstepbystepreportingthreechannels,namely,UnitChief,administrationandsafetysupervisionsystemcounterparttosuperiorleadership,reportsinatimelymanner.Sixthpitmustimplementthe“whoisinchargeofwhosincharge“and“hosemustbesafe“principlesinp
3、lanning,layout,checkproductionwork,summarizedandevaluatedatthesametime,plans,features,review,summary,ratingsafetywork.Firmlyestablishing“safetyistheeffectiveness,safetyisthecredibility,safetyisthecompetitiveness“awareness,tomakesafetywork.Seventhminingtradeunionorganizationaccordingtolawtheworkersto
4、participateintheworksafetyofdemocratic managementanddemocraticsupervision,safeguardworkerslegitimaterightsandinterestsinrespectofsafety.PersonaldeathandaTradeUnionhastherighttoparticipateinthemajoraccidentinvestigations,relyonthemassestodoproductionsafetywork.Eighthpitmustbebasedonrelevantlawsandreg
5、ulations,industrystandardsandcompanyandGodsstandards,rulesandregulationsissuedbythecompany,developingrulesandregulationsforcoalproduction,institutionalizationan850SMW 工法施工工艺及质量保证措施工法施工工艺及质量保证措施1、施工工艺、施工工艺1.1 施工流程施工流程施工流程应根据施工场地大小、周围环境等因素，施工时不得出现冷缝，搭接施工的相邻桩的施工间歇时间应不超过 1016 小时，合理设计施工流程，确保安全、优质完成本工程。开挖
6、沟槽设置导向定位型钢SMW 搅拌机就位，校正 复核桩机水平和垂直度拌制水泥浆液，开启空 压机，送浆至桩机钻头钻头喷浆、气并切割土 体下沉至设计桩底标高钻头喷浆、气并提升至 设计桩顶标高H 型钢垂直起吊，定位SMW 搅拌机架设下一施工循环型钢进场，质量检验 型钢涂减磨擦材料测量放样ndoverallleadershipresponsibilityforsafety.AdministrativeDeputyiswithinthescopeoftheirrespectiveresponsibilitiesatvariouslevelsofsecurityresponsibility,incharge
7、ofsecurityworkinthecontextofleadership,responsibletotheChief.Fifthopenpitproductionsafetyaccidentinvestigationsystem,performedonaproductionsafetyaccident“fourno“principle.Imposedonproductionsafetyaccidentreportstepbystepreportingthreechannels,namely,UnitChief,administrationandsafetysupervisionsystem
8、counterparttosuperiorleadership,reportsinatimelymanner.Sixthpitmustimplementthe“whoisinchargeofwhosincharge“and“hosemustbesafe“principlesinplanning,layout,checkproductionwork,summarizedandevaluatedatthesametime,plans,features,review,summary,ratingsafetywork.Firmlyestablishing“safetyistheeffectivenes
9、s,safetyisthecredibility,safetyisthecompetitiveness“awareness,tomakesafetywork.Seventhminingtradeunionorganizationaccordingtolawtheworkerstoparticipateintheworksafetyofdemocratic managementanddemocraticsupervision,safeguardworkerslegitimaterightsandinterestsinrespectofsafety.PersonaldeathandaTradeUn
10、ionhastherighttoparticipateinthemajoraccidentinvestigations,relyonthemassestodoproductionsafetywork.Eighthpitmustbebasedonrelevantlawsandregulations,industrystandardsandcompanyandGodsstandards,rulesandregulationsissuedbythecompany,developingrulesandregulationsforcoalproduction,institutionalizationan
11、2附图：附图：SMW 工法施工流程图工法施工流程图为保证 850 三轴水泥搅拌桩的连续性和接头的施工质量，达到设计要求的防渗要求，主要依靠重复套钻来保证，下图阴影部分为重复套钻。、-2、-1、-3、-4、-53001324型钢附图：附图：850850 水泥搅拌围护桩施工顺序图水泥搅拌围护桩施工顺序图1.2 施工技术参数施工技术参数1.2.1SMW工法水泥土搅拌桩的施工采用三轴搅拌设备，桩型采用850600水泥土搅拌桩。1.2.2水泥土搅拌桩采用P32.5普通硅酸盐水泥, 水灰比1.5,水泥掺入比20%，外加剂木质素用量为水泥用量的0.2%。1.2.3为保证水泥土搅拌均匀,必须控制好钻具下沉及提
12、升速度,钻机钻进搅拌速度一般在1m/min，提升搅拌速度一般在1.01.5m/min。施工时应保证水泥土能够充分搅拌混合均匀。提升速度不宜过快，避免孔壁塌方等现象。桩施工时，不得冲水下沉。相邻两桩施校核 H 型钢垂直度插入型钢 固定型钢施工完毕搅拌桩机械退场ndoverallleadershipresponsibilityforsafety.AdministrativeDeputyiswithinthescopeoftheirrespectiveresponsibilitiesatvariouslevelsofsecurityresponsibility,inchargeofsecurityw
13、orkinthecontextofleadership,responsibletotheChief.Fifthopenpitproductionsafetyaccidentinvestigationsystem,performedonaproductionsafetyaccident“fourno“principle.Imposedonproductionsafetyaccidentreportstepbystepreportingthreechannels,namely,UnitChief,administrationandsafetysupervisionsystemcounterpart
14、tosuperiorleadership,reportsinatimelymanner.Sixthpitmustimplementthe“whoisinchargeofwhosincharge“and“hosemustbesafe“principlesinplanning,layout,checkproductionwork,summarizedandevaluatedatthesametime,plans,features,review,summary,ratingsafetywork.Firmlyestablishing“safetyistheeffectiveness,safetyist
15、hecredibility,safetyisthecompetitiveness“awareness,tomakesafetywork.Seventhminingtradeunionorganizationaccordingtolawtheworkerstoparticipateintheworksafetyofdemocratic managementanddemocraticsupervision,safeguardworkerslegitimaterightsandinterestsinrespectofsafety.PersonaldeathandaTradeUnionhastheri
16、ghttoparticipateinthemajoraccidentinvestigations,relyonthemassestodoproductionsafetywork.Eighthpitmustbebasedonrelevantlawsandregulations,industrystandardsandcompanyandGodsstandards,rulesandregulationsissuedbythecompany,developingrulesandregulationsforcoalproduction,institutionalizationan工间隔不得超过12个小时。1.2.4H型钢必须在搅拌桩施工完毕后3小时内插入，要求桩位偏差不大于20mm，标高误差不大于100mm，垂直度偏差不大于0.5%。1.2.5型钢须保持平直，若有焊接接头，接头处须确保焊接可靠。1.2.6 H型钢在地下结构完成后予以回收，故在成桩及浇筑围檩混凝土时施工单位应考虑相应回收措施。1.3 测量放线测量放线1.3.1 施工前，先
