A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Combined cofferdam structure and construction method
The invention provides a combined cofferdam structure. The combined cofferdam structure comprises at least three pile casings located on the same closed ring, every two adjacent pile casings are connected through a connecting assembly, each connecting assembly comprises two sliding grooves vertically extending downwards and two first sealing plates vertically arranged downwards, the two sliding grooves are located in the two corresponding pile casings correspondingly, the two end parts of each first sealing plate vertically slide in the two corresponding sliding grooves correspondingly, a precast pile extending to a riverbed is arranged between the two first sealing plates, concrete is poured between the two first sealing plates of each connecting assembly, and the invention further provides a construction method. According to the combined cofferdam structure and the construction method, the first sealing plates sink to the designated position along the sliding grooves and match with the concrete to achieve inserting, driving and positioning of a precast pile, the technical problem that underwater blasting or drilling, grooving and rooting are needed for conventional cofferdam implantation is solved, the problems of underwater splicing, welding and the like are solved, and the construction difficulty degree of cofferdam implantation and fixation under the oblique section bare rock condition is relieved.
本发明提供一种组合围堰结构，包括位于同一封闭环上的至少三个护筒，且相邻的两个护筒之间均通过连接组件连接，每一连接组件均包括竖直向下延伸的两组滑槽以及竖直向下设置的两个第一封闭板，两组滑槽分别位于对应的两个护筒上，每一第一封闭板的两个端部分别竖向滑动于对应的两组滑槽内且于两个第一封闭板之间布置延伸至河床的预制桩，且于每一连接组件的两个第一封闭板之间浇注有混凝土；还提供一种施工方法。本发明中第一封闭板沿滑槽下沉指定位置，其与混凝土配合可以实现对预制桩的插打定位，规避了常规围堰着床必须水下爆破或钻孔成槽生根的技术难题，且规避了水下拼装、焊接等问题，缓解了斜截面裸岩条件下围堰着床、固定的施工困难程度。
Combined cofferdam structure and construction method
The invention provides a combined cofferdam structure. The combined cofferdam structure comprises at least three pile casings located on the same closed ring, every two adjacent pile casings are connected through a connecting assembly, each connecting assembly comprises two sliding grooves vertically extending downwards and two first sealing plates vertically arranged downwards, the two sliding grooves are located in the two corresponding pile casings correspondingly, the two end parts of each first sealing plate vertically slide in the two corresponding sliding grooves correspondingly, a precast pile extending to a riverbed is arranged between the two first sealing plates, concrete is poured between the two first sealing plates of each connecting assembly, and the invention further provides a construction method. According to the combined cofferdam structure and the construction method, the first sealing plates sink to the designated position along the sliding grooves and match with the concrete to achieve inserting, driving and positioning of a precast pile, the technical problem that underwater blasting or drilling, grooving and rooting are needed for conventional cofferdam implantation is solved, the problems of underwater splicing, welding and the like are solved, and the construction difficulty degree of cofferdam implantation and fixation under the oblique section bare rock condition is relieved.
本发明提供一种组合围堰结构，包括位于同一封闭环上的至少三个护筒，且相邻的两个护筒之间均通过连接组件连接，每一连接组件均包括竖直向下延伸的两组滑槽以及竖直向下设置的两个第一封闭板，两组滑槽分别位于对应的两个护筒上，每一第一封闭板的两个端部分别竖向滑动于对应的两组滑槽内且于两个第一封闭板之间布置延伸至河床的预制桩，且于每一连接组件的两个第一封闭板之间浇注有混凝土；还提供一种施工方法。本发明中第一封闭板沿滑槽下沉指定位置，其与混凝土配合可以实现对预制桩的插打定位，规避了常规围堰着床必须水下爆破或钻孔成槽生根的技术难题，且规避了水下拼装、焊接等问题，缓解了斜截面裸岩条件下围堰着床、固定的施工困难程度。
Combined cofferdam structure and construction method
组合围堰结构以及施工方法
WU PENG (author) / ZHANG XIANGUO (author) / PENG HUACHUN (author) / WEN WANGQING (author) / YAN AIGUO (author) / YANG YONG (author) / FU XIAOJUN (author) / LIU BENYONG (author) / SONG ZIWEI (author) / CHEN XIAOHUI (author)
2021-05-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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