The construction of the Wangzhuang hub of the Fangtang Expressway Project across the Shanghai-Shaanxi high-speed steel box girder was successfully completed
author：CREC China Railway Zhang Xin
4月26日
由中铁九局一公司承建的方唐高速项目
全标段唯一一处Ⅱ级风险施工
王庄枢纽跨沪陕高速钢箱梁顶推施工顺利完成
至此本标段控制性工程已全面攻克
项目施工将全面进入高速推进阶段
The construction of the Wangzhuang hub of the Fangtang Expressway Project across the Shanghai-Shaanxi high-speed steel box girder was successfully completed
王庄枢纽跨沪陕高速钢箱梁顶推施工
从开工至全部完成共历时51天
累计参建人员50余人
动用大型机械设备20余台（套）
公司一线建设者
累计完成钢箱梁顶推4联136节段
顶推距离356米
顶推重量2706吨
The construction of the Wangzhuang hub of the Fangtang Expressway Project across the Shanghai-Shaanxi high-speed steel box girder was successfully completed
本项钢箱梁顶推施工具有
全过程交叉施工作业
安全风险系数高
顶推过程极易发生梁体变形、偏移
以及顶推重量大、距离长
施工人员、机械设备投入多
施工组织协调复杂等特点
The construction of the Wangzhuang hub of the Fangtang Expressway Project across the Shanghai-Shaanxi high-speed steel box girder was successfully completed
The construction of the Wangzhuang hub of the Fangtang Expressway Project across the Shanghai-Shaanxi high-speed steel box girder was successfully completed
为保证钢箱梁顶推施工
顺利完成
项目第一时间成立课题攻关小组
制定出上坡顶推、增加分配梁
适时调整顶推设备吨位等专项施工方案
最大限度减少了纠偏次数
有力确保了顶推过程的安全可控
并提前5天完成了施工任务
The construction of the Wangzhuang hub of the Fangtang Expressway Project across the Shanghai-Shaanxi high-speed steel box girder was successfully completed
The construction of the Wangzhuang hub of the Fangtang Expressway Project across the Shanghai-Shaanxi high-speed steel box girder was successfully completed
1. Classification of post-wall grouting [formula] The post-wall grouting of the two-step water plugging segment can be divided into synchronous grouting and water plugging grouting according to the difference in the time and grouting purpose of the shield propulsion. 2. With...
