A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Combined cofferdam suitable for deeply-buried bridge bearing platform foundation and construction method
The invention belongs to the field of bridge construction foundation construction, and particularly relates to a combined cofferdam suitable for a deep-buried bridge bearing platform foundation and a construction method. The combined cofferdam comprises a lower concrete cofferdam and an upper locking steel pipe pile cofferdam, and an air curtain structure for assisting the cofferdam in sinking is arranged in the combined cofferdam; a U-shaped groove is formed in the top of the concrete cofferdam, the bottoms of all the fore shaft steel pipe piles of the fore shaft steel pipe pile cofferdam are inserted into the U-shaped groove, and the whole combined cofferdam structure is more reasonable in stress and safe and reliable in structure. The construction method comprises the steps that a lock catch steel pipe pile cofferdam is installed on a concrete cofferdam through a crane, water is injected into an air curtain and lock opening steel pipe piles for ballasting to assist sinking, and finally after construction of a bridge bearing platform, a pier body and the like is completed, the lock opening steel pipe pile cofferdam is pulled out one by one through a vibration pile driver. According to the construction method, the installation speed is high, the installation precision is easy to control, operation is easy, the construction difficulty is effectively reduced, and the construction efficiency is improved.
本发明属于桥梁建设基础施工领域，具体涉及一种适用于深埋式桥梁承台基础的组合式围堰及施工方法；所述组合式围堰包括下部的混凝土围堰和上部的锁口钢管桩围堰，组合围堰内设置辅助围堰下沉的空气幕结构；所述混凝土围堰的顶部设置有U型槽，所述锁口钢管桩围堰的各锁口钢管桩底部插接在U型槽内，整个组合式围堰结构在受力更加合理，结构安全可靠。所述施工方法用吊机在混凝土围堰上安装锁扣钢管桩围堰，并用空气幕和锁口钢管桩内注水压重辅助下沉，最后待桥梁承台、墩身等施工完成，采用振动打桩机逐根拔除锁口钢管桩围堰；所述施工方法安装速度高效，安装精度易于控制，且操作简单、有效降低施工难度，提高了施工工效。
Combined cofferdam suitable for deeply-buried bridge bearing platform foundation and construction method
The invention belongs to the field of bridge construction foundation construction, and particularly relates to a combined cofferdam suitable for a deep-buried bridge bearing platform foundation and a construction method. The combined cofferdam comprises a lower concrete cofferdam and an upper locking steel pipe pile cofferdam, and an air curtain structure for assisting the cofferdam in sinking is arranged in the combined cofferdam; a U-shaped groove is formed in the top of the concrete cofferdam, the bottoms of all the fore shaft steel pipe piles of the fore shaft steel pipe pile cofferdam are inserted into the U-shaped groove, and the whole combined cofferdam structure is more reasonable in stress and safe and reliable in structure. The construction method comprises the steps that a lock catch steel pipe pile cofferdam is installed on a concrete cofferdam through a crane, water is injected into an air curtain and lock opening steel pipe piles for ballasting to assist sinking, and finally after construction of a bridge bearing platform, a pier body and the like is completed, the lock opening steel pipe pile cofferdam is pulled out one by one through a vibration pile driver. According to the construction method, the installation speed is high, the installation precision is easy to control, operation is easy, the construction difficulty is effectively reduced, and the construction efficiency is improved.
本发明属于桥梁建设基础施工领域，具体涉及一种适用于深埋式桥梁承台基础的组合式围堰及施工方法；所述组合式围堰包括下部的混凝土围堰和上部的锁口钢管桩围堰，组合围堰内设置辅助围堰下沉的空气幕结构；所述混凝土围堰的顶部设置有U型槽，所述锁口钢管桩围堰的各锁口钢管桩底部插接在U型槽内，整个组合式围堰结构在受力更加合理，结构安全可靠。所述施工方法用吊机在混凝土围堰上安装锁扣钢管桩围堰，并用空气幕和锁口钢管桩内注水压重辅助下沉，最后待桥梁承台、墩身等施工完成，采用振动打桩机逐根拔除锁口钢管桩围堰；所述施工方法安装速度高效，安装精度易于控制，且操作简单、有效降低施工难度，提高了施工工效。
Combined cofferdam suitable for deeply-buried bridge bearing platform foundation and construction method
一种适用于深埋式桥梁承台基础的组合式围堰及施工方法
REN WENHUI (author) / HE HONGSHENG (author) / FUSHIGA (author) / YANG CHENG (author) / LI BO (author) / SUN CHANGJUN (author) / SHUAI YONG (author) / LIU ZHONGQIANG (author) / ZHU CHUNLEI (author) / YANG KAI (author)
2024-12-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Construction method for steel plate pile cofferdam of deeply-buried underwater bearing platform
| European Patent Office | 2020
| European Patent Office | 2023
Construction method suitable for deepwater deeply-buried soft soil locking steel pipe pile cofferdam
| European Patent Office | 2024
Combined cofferdam suitable for offshore large-size bearing platform construction
| European Patent Office | 2021
Construction method of offshore deeply-buried weathered rock stratum non-drainage cofferdam
| European Patent Office | 2022