上海长江大桥主墩吊箱一次封底施工技术

Constructing skill of one-time sealing main pier lifted trunk of Shanghai Yangtze River Bridge

结合上海长江隧桥工程的实际情况,简述了钢吊箱的总体施工工艺流程,从封底施工难点、施工工艺确定、施工工艺流程及封底混凝土施工等方面详细介绍了钢吊箱封底施工,通过对封底效果的研究提出了相应的改进措施。

Combined with the actual condition of Shanghai Yangtze River tunnel project, elaborates the general constructing crafts and procedure of steel lifted trunk. From constructing difficulties in sealing, fix of constructing crafts, constructing crafts and procedure as well as sealing concrete construction, it introduces sealing construction by steel lifted trunk. Through research of sealing effect, it brings forward relative improving measures.