C121技术交底C121土方开挖施工技术交底.docxVIP

施工技术质量交底记录 Construction Technology Quality Clarification Record 项目名称project 扬巴二期改造项目IPS II PROJECT 施工单位 con struct ion un it 中石化五公司 FICC 工程名称 work IB/PIB C121 交底日期 clarificati on date 2010年04月29日 2010-04-29 交底地点 locati on 现场办公室field office 交底部位及工序 process 基础 foundation--- 土方开挖 excavation 执行规范和规程 executi on procedures 《建筑地基基础工程施工质量验收规范》 GB50202-2002 "Specificati on for Foun dati on Con struct ion Quality In spect ion And Accepta nce"GB50202-2002 交底内容 clarification content : 一、施工准备 con struct ion preparatio n 1、 轴线疋位标桩已设置并保护好。 Axis positioning stake is set and protected 2、 各种土方施工机具和现场临时通道正常 ，临时设施和女全措施准备就绪。 All excavation equipme nt tools and temporary passage perform well,temporary facilities and safety measures prepared 3、 基坑周边灰线已放且验收合格。 Gray Line has been set around foundation and passes inspection 二、操作要点 key points for operati on 1、 基坑土方开挖采用履带式单斗挖掘机进行开挖，挖出的土方用自卸汽车运输到指定的弃 土地点。 Use crawler shovel for foun datio n pit excavati on, excavated earth is tran sported to desig nated site by dump truck 2、 机械挖土时设专人指挥挖掘机施工作业，机械挖土到设计底标高上 200mm的位置后用人 工清理至设计的底标咼。注意各基础底不冋标咼的控制。 Assign specialist to direct mecha ni cal excavati on. After excavator arrives 200mm above desig n elevati on, resume excavati on through manual work dow n to desig ned foun dati on elevati on .Pay atte nti on to elevati ons of differe nt foun dati on bases. 3、 在每个基坑底边设置排水沟和一个集水井。排水沟断面尺寸为 0.3 x 0.3米，沿基坑周边 设置，排水沟底坡度 5%流向集水井，集水坑尺寸为 0.8 x 0.8 x 1.0米(深)。集水坑内设 污泥泵一只，当基坑内有水时，派专人做好坑内的排水降水工作。 Set a drainage ditch and collect ing well at the hemli ne of each foun dati on pit.Secti on dime nsion of drain age ditch is 0.3 x 0.3m, with 5% bottom slope faci ng collecti ng well.Collecting dimension is 0.8 x 0.8 x 1.0m(d).Fix a slime pump in collecting well and send assig ned people for dewateri ng in case of water deposit. 二、质量标准 quality sta ndard 1、 开挖尺寸、坑底标咼符合设计和规范要求。 Excavation dimension and foundation bottom elevati on con forms with desig n requireme nts and specificati on 2、 坑底要平整，虚土清理干净，边坡符合施工方案要求。 Pit bottom shou