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通过工程实例,对钢浮筒浮平台拼装双壁钢围堰施工技术进行阐述,钢浮筒浮平台是利用钻孔桩钢护筒制做拼装而成,围堰拼装下水后,钢浮筒修整复原后再用于钻孔桩施工。该技术在新井口嘉陵江特大桥首次成功应用表明该方法是对大型钢围堰施工技术的创新,具有技术先进、设备简单、操作简易、安全可靠、钢耗降低等特点,且有广泛的应用前景。
Through the engineering example, the construction technology of the double-ply steel cofferdam assembling the steel floating pontoon platform is described. The steel pontoon floating platform is assembled by using the bored piles steel casing. After the cofferdam is assembled and put in the water, For drilling pile construction. The successful application of this technology for the first time at Jiao Ling River Bridge in Xinjikou shows that this method is an innovation of construction technology for large steel cofferdam. It has the characteristics of advanced technology, simple equipment, simple operation, safety and reliability, reduced steel consumption, and has broad application prospects.