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A platform for research: civil engineering, architecture and urbanism
Double-wall steel cofferdam construction method
The invention relates to a double-wall steel cofferdam construction method. The double-wall steel cofferdam construction method comprises the following steps that a plurality of steel cofferdam bottomjoints are assembled and formed; the formed steel cofferdam bottom joints are subjected to floating transportation in position and then lifted to enter water, so that the steel cofferdam bottom joints are stably and vertically floated at a preset construction pier position, locked and positioned; the formed steel cofferdam bottom joints are jointed and sunk so as to be stably implanted; after mudsuction and foundation cleaning, a steel casing is hoisted and inserted into the formed steel cofferdam bottom joints; underwater concrete for the steel cofferdam bottom joints is poured for bottom sealing; a bearing platform is poured on the bottom-sealing concrete, and a default construction pier body is poured on the bearing platform, so that the pier body is higher than the water surface. When used for construction of a double-wall steel cofferdam, the method has the characteristics that the method is safe, reliable and capable of meeting the requirements for the stability, the permeability resistance and the shock resistance, the structure is simple, convenience is brought to construction and disassembly, a cofferdam base is easy to dispose, and a cofferdam body is easily connected with a bank slope.
本发明涉及一种双壁钢围堰施工方法，包括以下步骤：将多节钢围堰底节拼装成型；浮运就位并起吊下水，使其稳定垂直地自浮于预设施工墩位处后进行锁紧定位；接高后下沉并使其稳定着床；吸泥清基后，在成型的钢围堰底节内吊插钢护筒；浇筑钢围堰底节水下混凝土进行封底；在封底混凝土上浇筑承台，在所述承台上浇筑预设施工墩身，且使墩身高于水面。利用该方法施工双壁钢围堰，具有安全可靠，能满足稳定性、抗渗及抗冲要求，同时结构简单，施工方便，便于拆除，堰基易于处理，堰体便于与岸坡连接的特点。
Double-wall steel cofferdam construction method
The invention relates to a double-wall steel cofferdam construction method. The double-wall steel cofferdam construction method comprises the following steps that a plurality of steel cofferdam bottomjoints are assembled and formed; the formed steel cofferdam bottom joints are subjected to floating transportation in position and then lifted to enter water, so that the steel cofferdam bottom joints are stably and vertically floated at a preset construction pier position, locked and positioned; the formed steel cofferdam bottom joints are jointed and sunk so as to be stably implanted; after mudsuction and foundation cleaning, a steel casing is hoisted and inserted into the formed steel cofferdam bottom joints; underwater concrete for the steel cofferdam bottom joints is poured for bottom sealing; a bearing platform is poured on the bottom-sealing concrete, and a default construction pier body is poured on the bearing platform, so that the pier body is higher than the water surface. When used for construction of a double-wall steel cofferdam, the method has the characteristics that the method is safe, reliable and capable of meeting the requirements for the stability, the permeability resistance and the shock resistance, the structure is simple, convenience is brought to construction and disassembly, a cofferdam base is easy to dispose, and a cofferdam body is easily connected with a bank slope.
本发明涉及一种双壁钢围堰施工方法，包括以下步骤：将多节钢围堰底节拼装成型；浮运就位并起吊下水，使其稳定垂直地自浮于预设施工墩位处后进行锁紧定位；接高后下沉并使其稳定着床；吸泥清基后，在成型的钢围堰底节内吊插钢护筒；浇筑钢围堰底节水下混凝土进行封底；在封底混凝土上浇筑承台，在所述承台上浇筑预设施工墩身，且使墩身高于水面。利用该方法施工双壁钢围堰，具有安全可靠，能满足稳定性、抗渗及抗冲要求，同时结构简单，施工方便，便于拆除，堰基易于处理，堰体便于与岸坡连接的特点。
Double-wall steel cofferdam construction method
一种双壁钢围堰施工方法
WU JING (author) / WU XIAOQING (author) / HAN LIBIN (author) / LI ZHIBO (author) / YAO NING (author) / GAO FENG (author) / LI MEIRUI (author) / WANG XUEHAO (author) / SHI YANRUI (author)
2020-05-15
Patent
Electronic Resource
Chinese
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