Multi-span double-arch slope-supporting corridor type quick-dismounting-mounting combined cofferdam for river channel: Fid-Bau Portal

Multi-span double-arch slope-supporting corridor type quick-dismounting-mounting combined cofferdam for river channel

ZHAO HANKUI / ZHAO CHANGWEI / ZHAO HANQING

The invention relates to a multi-span double-arch slope-supporting corridor type quick-dismounting-mounting combined cofferdam for a river channel. The repairing problem caused when multiple channel side slope lining plates in a channel side slope lining plate structure are damaged continuously in the transverse direction can be better effectively solved. An inlet section cofferdam body, a middlesection cofferdam body and a plug section cofferdam body are of a multi-span double-arch structure and are formed by connecting a left-side span cofferdam body, a middle-side span cofferdam body and aright-side span cofferdam body together through connecting plates, and the inlet section cofferdam body, the middle section cofferdam body and the plug section cofferdam body are connected together through an inlet section cofferdam body rear end steel plate, a middle section cofferdam body front and rear end flanges and flange rubber gaskets and a plug section cofferdam body front end flange, and lower parts of the cofferdam bodies are installed on supporting piers; the inlet section cofferdam body is provided with a traction operation fixing device arranged on a side slope river bank, the two sides of the inlet section cofferdam body, the middle section cofferdam body and the plug section cofferdam body are provided with hydraulic lifting traveling devices, and the lower parts of the cofferdam bodies are provided with V-shaped cavity type rubber water stopping bodies. Installation and use are convenient, the construction speed is high, the efficiency is high, and the effect is good.

本发明涉及河流渠道多跨联拱扶坡廊道式快速拆装组合围堰，可更好有效解决渠道边坡衬砌板结构发生连续横向多块损坏时的修复问题。进口段围堰体、中间段围堰体及堵头段围堰体为多跨联拱结构，由左边跨围堰体、中跨围堰体及右边跨围堰体经连接板连接在一起构成，将进口段围堰体、中间段围堰体及堵头段围堰体经进口段围堰体后端钢板、中间段围堰体前后端法兰和法兰橡胶垫片及堵头段围堰体前端法兰连接在一起，围堰体下部装在支墩上；进口段围堰体上装有置于边坡河岸上的牵拉运行固定装置进口段围堰体、中间段围堰体和堵头段围堰体两侧设置液压升降行走装置，下部设置V形空腔式橡胶止水体。本发明安装使用方便，施工速度快、效率高，效果好。

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