资源描述：
《筏板基础大体积混凝土降温施工》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、筏板基础大体积混凝土浇筑降温施工方案一、编制依据 《建筑工程施工质量验收统一标准》GB50300-2001 《建筑地基基础工程施工质量验收规范》GB50202-2002 《混凝土结构工程施工规范》GB50666-2011 《普通混凝土用砂质量标准及检验方法》JGJ52－92 《普通混凝土用碎石和卵石质量标准及检验方法》GJ53－92 《混凝土膨胀剂》GB23439-2009 《混凝土外加剂应用技术规范》GB50119－2003 《普通混凝土配合比设计规程》JGJ55－2011 《大体积混凝土施工规范》GB5049
2、6-2009 《高层建筑筏形及箱形基础技术规范》JGJ6-2011 二、工程概况 本工程3#主楼基础为筏板基础，板厚1.8m，属于大体积混凝土。筏板整体混凝土工程量约为3400m3，混凝土强度等级C30；挡水板和挡土墙砼为C30.P6。外加膨胀抗裂防水剂。这种大体积混凝土底板施工具有水化热高、收缩量大、容易开裂等特点，故底板大体积混凝土浇筑应作为一个施工重点和难点认真对待。大体积混凝土施工重点主要是将温度应力产生的不利影响减少到最少，防止和降低裂缝的产生和发展。因此我项目部考虑采取如下施工措施。三、混凝土配合比
3、 superiortorecruitfull-timepeacevolunteers,andtheCountyBureauofPingAnzhiMayTownshipPeacevolunteersintegrationanddevelopment,jointlycarryoutthevolunteerserviceactivities.ActivitiesandpicturestotimelysubmitcommandcenterandthePropagandaDepartment,convenientforin
4、ternalandexternalpublicityandcommunication.ThePropagandaDepartmentofthecountybureautodovolunteerworkinstructionschedulingandcoordination,andsummarizeandpopularizeadvancedexperience,tofacilitatethemtolearnfromeachother,andtimelyorganizationofeducationandtraini
5、ng,publicityandevaluationandaward.Atthesametime,onamonthlybasisvolunteerssafeconstructionandactivitieswereinformedonline,organizationconstructionincludedintheglobalperformanceappraisal,paycloseattentiontoimprovingthemanagementsystem,establishassessmentincenti
6、ves,theworkofaseriousandresponsible,outstandingachievementsPersonneltogiverecognition,andgivesomespiritualandmaterialincentives,fullymobilizetheenthusiasmofthemajorityofthevolunteers,attachimportancetocreatepeacevolunteerwork,respectthepeacevolunteers,praises
7、ecurityvolunteersbehavioroftheatmosphereandsparenoefforttopromotethesmoothdevelopmentoftheconstructionofsafetyvolunteers.Fourth,insistondifferentiatedprinciple.Peacevolunteersjusttheauxiliarypowerofpublicsecurityorgans,intheworkofthedeploymentandassignedtheta
8、sklearning,traininganddailycontact,toabidebytheprincipleofconfidentiality,andregulatetheirbehavior,notthevolunteersdothingsneverletvolunteerstodo,resolutelyput15考虑水泥水化热引起的温度应力和温度变形，在混凝土级配
