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A platform for research: civil engineering, architecture and urbanism
Fabricated cofferdam suitable for rock foundation abrupt slope and construction method
The invention discloses a fabricated cofferdam suitable for a rock foundation abrupt slope. The fabricated cofferdam is characterized in that a plurality of pairs of L-shaped reinforced concrete baffles which are oppositely arranged are placed on an excavated flat rock foundation bed to form a U-shaped reinforced concrete tank bin, bagged soil is stacked in the U-shaped reinforced concrete tank bin to form the cofferdam, reserved holes are formed in vertical baffles of the L-shaped reinforced concrete baffles, each pair of L-shaped reinforced concrete baffles is connected through split bolts,and the two ends of each split bolt are fixed through steel channel surrounding purlins. The novel gravity type cofferdam structure is safe, reliable, high in practicability, convenient to construct and capable of being recycled, the application limitation of a conventional cofferdam form on a rock-based steep slope riverway is overcome, a dry land condition is created for construction in a foundation pit on a riverway slope, and the influence of cofferdam engineering on the surrounding environment is reduced.
本发明公开了一种适用于岩基陡坡的装配式围堰，其特征在于：在开挖出的平整岩基基床上放置若干对相向摆放的L型钢筋混凝土挡板形成U型钢筋混凝土槽仓，U型钢筋混凝土槽仓内堆叠袋装土形成围堰，L型钢筋混凝土挡板的竖直挡板上设有预留孔洞，每对L型钢筋混凝土挡板之间通过对拉螺杆连接，对拉螺杆两端采用槽钢围檩固定。本发明的新型重力式围堰结构安全可靠，实用性强，施工便利，可重复回收利用。克服了常规围堰形式在岩基陡坡河道上应用的局限性，为河道边坡上基坑内施工创造干地条件，减小围堰工程对于周边环境的影响。
Fabricated cofferdam suitable for rock foundation abrupt slope and construction method
The invention discloses a fabricated cofferdam suitable for a rock foundation abrupt slope. The fabricated cofferdam is characterized in that a plurality of pairs of L-shaped reinforced concrete baffles which are oppositely arranged are placed on an excavated flat rock foundation bed to form a U-shaped reinforced concrete tank bin, bagged soil is stacked in the U-shaped reinforced concrete tank bin to form the cofferdam, reserved holes are formed in vertical baffles of the L-shaped reinforced concrete baffles, each pair of L-shaped reinforced concrete baffles is connected through split bolts,and the two ends of each split bolt are fixed through steel channel surrounding purlins. The novel gravity type cofferdam structure is safe, reliable, high in practicability, convenient to construct and capable of being recycled, the application limitation of a conventional cofferdam form on a rock-based steep slope riverway is overcome, a dry land condition is created for construction in a foundation pit on a riverway slope, and the influence of cofferdam engineering on the surrounding environment is reduced.
本发明公开了一种适用于岩基陡坡的装配式围堰，其特征在于：在开挖出的平整岩基基床上放置若干对相向摆放的L型钢筋混凝土挡板形成U型钢筋混凝土槽仓，U型钢筋混凝土槽仓内堆叠袋装土形成围堰，L型钢筋混凝土挡板的竖直挡板上设有预留孔洞，每对L型钢筋混凝土挡板之间通过对拉螺杆连接，对拉螺杆两端采用槽钢围檩固定。本发明的新型重力式围堰结构安全可靠，实用性强，施工便利，可重复回收利用。克服了常规围堰形式在岩基陡坡河道上应用的局限性，为河道边坡上基坑内施工创造干地条件，减小围堰工程对于周边环境的影响。
Fabricated cofferdam suitable for rock foundation abrupt slope and construction method
一种适用于岩基陡坡的装配式围堰及施工方法
DONG XUEGANG (author) / MA RUBIN (author) / ZOU HENG (author) / LIU HUAGEN (author) / GU WEI (author) / CAO KUN (author) / WANG HONGYUAN (author)
2021-02-19
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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