涵洞加宽施工方案.docx

涵洞加宽施工方案
目录
一、前言....................................................3
1.1编制依据.............................................3
1.2工程概况.............................................4
二、施工准备................................................5
2.1材料准备.............................................6
2.2施工设备.............................................7
2.3劳动力组织...........................................7
三、涵洞加宽施工流程........................................9
3.1基础处理............................................10
3.2模板安装............................................11
3.3混凝土浇筑..........................................12
3.4钢筋加工与安装......................................13
3.5模板拆除............................................15
3.6检查与验收..........................................16
四、涵洞加宽施工技术要点...................................17
4.1基础处理............................................18
4.1.1扩大基础........................................20
4.1.2加固基础........................................21
4.2模板安装............................................22
4.2.1模板设计........................................23
4.2.2模板安装质量控制................................24
4.3混凝土浇筑..........................................25
4.3.1混凝土配合比....................................26
4.3.2浇筑方法........................................27
4.3.3浇筑速度控制....................................28
4.4钢筋加工与安装......................................29
4.4.1钢筋加工........................................30
4.4.2钢筋连接........................................32
4.4.3钢筋安装质量控制................................33
4.5模板拆除............................................34
4.5.1拆模时间........................................35
4.5.2拆模方法........................................36
4.6检查与验收..........................................37
4.6.1检查项目........................................39
4.6.2验收标准........................................39
五、安全及环保措施.........................................41
5.1安全生产保证措施....................................42
5.2环保措施.......................................