国道 353 大岩洞至雷波县城改建工程 B 合同段 K46+780～K80+000排水边沟首件施工方案 编辑： 审核：河南中原路桥建设(集团）有限公 司国道 353 改建工程 B 合段项目部二○一六年五月七日目 录一、编制依据及目的............................................................................................- 1 —1。1 编制依据...............................................................................................- 1 —1.2 首件目的....................................................................................................- 1 -二、工程概况......................................................................................................— 1 —1、工程简介.................................................................................................— 1 —2。1 主要技术指标.........................................................................................- 1 —三、 施工组织安排...............................................................................................- 1 —3。1 首件工程人员分工...............................................................................—2—3.2 材料、设备及人员安排...........................................................................- 2 —四、 C20 砼排水边沟首件主要施工工艺............................................................— 3 -4.1 施工工艺流程............................................................................................- 3 -4.2 施工场地准备.........................................................................................- 3 —4.3 基槽开挖.................................................................................................— 3 -4.4 C20 砼底板施工.......................................................................................— 3 -4.5 C20 砼墙身浇筑.......................................................................................- 3 —4。6 沉降缝设置.................................................................
