A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Longitudinal cofferdam structure
The invention belongs to the technical field of water conservancy and hydropower engineering, and particularly relates to a longitudinal cofferdam structure. The longitudinal cofferdam structure comprises a longitudinal cofferdam body of a concrete structure, a U-shaped groove is formed in the middle of the longitudinal cofferdam body in the length direction of the longitudinal cofferdam body, and a rock ballast backfilling structure is arranged in the U-shaped groove. The U-shaped groove is formed in the center of the longitudinal cofferdam body in the width direction. The width of the U-shaped groove is not larger than 50% of the width of the longitudinal cofferdam body. The depth of the U-shaped groove is not larger than 60% of the height of the longitudinal cofferdam body. The two side walls of the top of the U-shaped groove are connected through concrete precast beams which are transversely arranged, and the concrete precast beams are arranged at intervals in the length direction of the U-shaped groove. And the top of the U-shaped groove is sealed by a clay clamping geomembrane structure. The longitudinal cofferdam structure can be used for normal diversion of a conventional longitudinal cofferdam in the construction period, and can be reconstructed into a permanent flood discharge gate for flood discharge in the operation period; the required work amount is relatively small, and the construction period is also shortened.
本发明属于水利水电工程技术领域，具体涉及一种纵向围堰结构。该纵向围堰结构包括混凝土结构的纵向围堰本体，纵向围堰本体的中部沿其长度方向布置有U形槽，U形槽内设置有石渣回填结构。U形槽设于纵向围堰本体的宽度方向中心位置；U形槽的宽度不大于纵向围堰本体宽度的50％；U形槽的深度不大于纵向围堰本体高度的60％。U形槽顶部的两侧壁之间通过横向布置的混凝土预制梁相连接，混凝土预制梁沿着U形槽的长度方向间隔布置。U形槽的顶部通过粘土夹土工膜结构封闭。本发明中的纵向围堰结构在施工期可作为常规的纵向围堰正常导流，运行期可改建为永久泄洪闸泄洪；所需工程量相对较小，也缩短了施工工期。
Longitudinal cofferdam structure
The invention belongs to the technical field of water conservancy and hydropower engineering, and particularly relates to a longitudinal cofferdam structure. The longitudinal cofferdam structure comprises a longitudinal cofferdam body of a concrete structure, a U-shaped groove is formed in the middle of the longitudinal cofferdam body in the length direction of the longitudinal cofferdam body, and a rock ballast backfilling structure is arranged in the U-shaped groove. The U-shaped groove is formed in the center of the longitudinal cofferdam body in the width direction. The width of the U-shaped groove is not larger than 50% of the width of the longitudinal cofferdam body. The depth of the U-shaped groove is not larger than 60% of the height of the longitudinal cofferdam body. The two side walls of the top of the U-shaped groove are connected through concrete precast beams which are transversely arranged, and the concrete precast beams are arranged at intervals in the length direction of the U-shaped groove. And the top of the U-shaped groove is sealed by a clay clamping geomembrane structure. The longitudinal cofferdam structure can be used for normal diversion of a conventional longitudinal cofferdam in the construction period, and can be reconstructed into a permanent flood discharge gate for flood discharge in the operation period; the required work amount is relatively small, and the construction period is also shortened.
本发明属于水利水电工程技术领域，具体涉及一种纵向围堰结构。该纵向围堰结构包括混凝土结构的纵向围堰本体，纵向围堰本体的中部沿其长度方向布置有U形槽，U形槽内设置有石渣回填结构。U形槽设于纵向围堰本体的宽度方向中心位置；U形槽的宽度不大于纵向围堰本体宽度的50％；U形槽的深度不大于纵向围堰本体高度的60％。U形槽顶部的两侧壁之间通过横向布置的混凝土预制梁相连接，混凝土预制梁沿着U形槽的长度方向间隔布置。U形槽的顶部通过粘土夹土工膜结构封闭。本发明中的纵向围堰结构在施工期可作为常规的纵向围堰正常导流，运行期可改建为永久泄洪闸泄洪；所需工程量相对较小，也缩短了施工工期。
Longitudinal cofferdam structure
纵向围堰结构
LI JIANHUI (author) / SHI TAIJUN (author) / ZHANG DAN (author) / WANG FENG (author) / DOU XIANGXIAN (author)
2023-04-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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