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A platform for research: civil engineering, architecture and urbanism
Novel underwater bottom sealing method for deepwater double-wall steel hanging box cofferdam
The invention relates to a novel underwater bottom sealing method for a deepwater double-wall steel hanging box cofferdam, which belongs to the technical field of cofferdam construction, and comprises the following steps of: 1, forming a blade foot groove at a position corresponding to a blade foot at a cofferdam setting position, cleaning the blade foot groove, fitting the outer side wall of the blade foot groove with the blade foot, and forming a gap between the inner side wall of the blade foot groove and the blade foot; meanwhile, the steel casing is buried in a riverbed; secondly, a plurality of steel casings are inserted in the corresponding positions of the surface of the riverbed, and a first concrete layer is poured; and thirdly, a blade foot is formed at the bottom of the double-wall steel cofferdam in a machining mode, the cofferdam is made to move to the position above the blade foot groove in a hoisting or floating mode, the blade foot of the cofferdam is inserted into the blade foot groove, and meanwhile a gap between the inner side wall of the blade foot groove and the blade foot forms a supplementary sealing layer through pouring. Fourthly, a second concrete layer is poured on the upper surface of the first concrete layer, and the second concrete layer is used as cofferdam bottom sealing concrete; the sealing structure has the advantage of being good in sealing performance.
本发明涉及一种新型深水双壁钢吊箱围堰水下封底方法，属于围堰施工技术领域，包括下列步骤：步骤一：以围堰设置位置对应刃脚处形成刃脚槽，并对刃脚槽进行清理，刃脚槽的外侧侧壁与刃脚贴合，刃脚槽内侧侧壁与刃脚之间形成有空隙，同时将钢护筒埋设入河床中；步骤二：在河床表面对应位置插打若干钢护筒，并浇筑第一混凝土层；步骤三：在双壁钢围堰底部通过加工的方式形成刃脚，通过吊运或浮运的方式使围堰运动至刃脚槽上方，并使围堰刃脚并插入刃脚槽中，同时，将刃脚槽内侧侧壁和刃脚之间的空隙通过浇筑形成补充密封层。步骤四：在第一混凝土层的上表面浇筑第二混凝土层，第二混凝土层用于充当围堰封底混凝土；其具有封底密封性好的特点。
Novel underwater bottom sealing method for deepwater double-wall steel hanging box cofferdam
The invention relates to a novel underwater bottom sealing method for a deepwater double-wall steel hanging box cofferdam, which belongs to the technical field of cofferdam construction, and comprises the following steps of: 1, forming a blade foot groove at a position corresponding to a blade foot at a cofferdam setting position, cleaning the blade foot groove, fitting the outer side wall of the blade foot groove with the blade foot, and forming a gap between the inner side wall of the blade foot groove and the blade foot; meanwhile, the steel casing is buried in a riverbed; secondly, a plurality of steel casings are inserted in the corresponding positions of the surface of the riverbed, and a first concrete layer is poured; and thirdly, a blade foot is formed at the bottom of the double-wall steel cofferdam in a machining mode, the cofferdam is made to move to the position above the blade foot groove in a hoisting or floating mode, the blade foot of the cofferdam is inserted into the blade foot groove, and meanwhile a gap between the inner side wall of the blade foot groove and the blade foot forms a supplementary sealing layer through pouring. Fourthly, a second concrete layer is poured on the upper surface of the first concrete layer, and the second concrete layer is used as cofferdam bottom sealing concrete; the sealing structure has the advantage of being good in sealing performance.
本发明涉及一种新型深水双壁钢吊箱围堰水下封底方法，属于围堰施工技术领域，包括下列步骤：步骤一：以围堰设置位置对应刃脚处形成刃脚槽，并对刃脚槽进行清理，刃脚槽的外侧侧壁与刃脚贴合，刃脚槽内侧侧壁与刃脚之间形成有空隙，同时将钢护筒埋设入河床中；步骤二：在河床表面对应位置插打若干钢护筒，并浇筑第一混凝土层；步骤三：在双壁钢围堰底部通过加工的方式形成刃脚，通过吊运或浮运的方式使围堰运动至刃脚槽上方，并使围堰刃脚并插入刃脚槽中，同时，将刃脚槽内侧侧壁和刃脚之间的空隙通过浇筑形成补充密封层。步骤四：在第一混凝土层的上表面浇筑第二混凝土层，第二混凝土层用于充当围堰封底混凝土；其具有封底密封性好的特点。
Novel underwater bottom sealing method for deepwater double-wall steel hanging box cofferdam
一种新型深水双壁钢吊箱围堰水下封底方法
ZHAO JIAN (author) / AN LUMING (author) / FAN LILONG (author) / ZHOU GUANNAN (author) / CHEN MEIYU (author) / WANG LEI (author) / ZHANG PENGZHI (author) / FAN MENGQI (author)
2024-08-30
Patent
Electronic Resource
Chinese
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