9月26日,由中铁四局上海公司承建的上海轨道交通市域线机场联络线张江站一区底板顺利浇筑完成,标志着张江站一区深基坑施工度过风险期,为一区主体结构施工奠定了坚实基础。

机场联络线张江站一区基坑长165.8米,净宽24.1米,面积约4730平方米,一区基坑底板设计混凝土浇筑方量7390方。项目部仅用时20天便完成了7块底板结构段的施工。项目团队总结四区施工经验,严控风险源,把控好土方开挖与支撑支护衔接关口,随挖随撑,加强基坑稳定和地面沉降监测,有效控制了基坑变形失稳等施工风险。项目部建立工期责任制,狠抓关键工序节点落实,加大各类资源的投入,加快底板的施工进度,以实现阶段工期节点顺利完成,保障施工进度,推进机场联络线工程建设。
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