A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Land island cofferdam supporting large-span tied-arch bridge dismantling and building mechanism and construction method
The invention discloses a land island cofferdam supporting large-span tied arch bridge dismantling and building mechanism which comprises a cofferdam facility and a supporting support, the cofferdam facility is defined by a steel-wood enclosure structure in a river channel, and the steel-wood enclosure structure comprises two parallel double-row timber pile structures composed of a plurality of outer side timber piles and inner side timber piles. Waterproof geotechnical cloth is laid in the cofferdam facility, river sludge is filled, and drainage and ground hardening are conducted in the cofferdam facility; the supporting support comprises a plurality of supporting pipe piers and transverse joints, the supporting pipe piers are evenly distributed on the two sides of an arch rib of the tied-arch bridge, and every two adjacent supporting pipe piers are fixed through the corresponding transverse joint. The invention further discloses a dismounting and building construction method for the land island cofferdam supporting large-span tied-arch bridge. The problems that when the tied-arch bridge is dismantled, the erection difficulty of the dismantling support is large, and the installation and dismantling steps are tedious are solved, precise control and safety of construction are guaranteed, the dismantling efficiency is high, the cost is low, pollution to water is small, and operation is convenient.
本发明公开了一种陆岛围堰支撑大跨度系杆拱桥拆建机构，包括围堰设施和支撑支架，围堰设施由钢木围护结构于河道内围设而成，钢木围护结构包括由若干个外侧木桩、内侧木桩组成的两个相互平行的双排木桩结构，内部铺设防水土工布并填充河道淤泥，围堰设施内部进行排水及地面硬化；支撑支架包括支撑管墩、横向联结，支撑管墩设置有若干个并均布在系杆拱桥的拱肋两侧，相邻两支撑管墩通过横向联结固定。本发明还公开了一种陆岛围堰支撑大跨度系杆拱桥拆建施工方法。本发明解决了系杆拱桥拆除时拆除支架架设难度大、安装拆除步骤繁琐的问题，不仅保证了施工的精准控制和安全性，而且拆卸效率高，成本较低，对水体污染较小，操作方便。
Land island cofferdam supporting large-span tied-arch bridge dismantling and building mechanism and construction method
The invention discloses a land island cofferdam supporting large-span tied arch bridge dismantling and building mechanism which comprises a cofferdam facility and a supporting support, the cofferdam facility is defined by a steel-wood enclosure structure in a river channel, and the steel-wood enclosure structure comprises two parallel double-row timber pile structures composed of a plurality of outer side timber piles and inner side timber piles. Waterproof geotechnical cloth is laid in the cofferdam facility, river sludge is filled, and drainage and ground hardening are conducted in the cofferdam facility; the supporting support comprises a plurality of supporting pipe piers and transverse joints, the supporting pipe piers are evenly distributed on the two sides of an arch rib of the tied-arch bridge, and every two adjacent supporting pipe piers are fixed through the corresponding transverse joint. The invention further discloses a dismounting and building construction method for the land island cofferdam supporting large-span tied-arch bridge. The problems that when the tied-arch bridge is dismantled, the erection difficulty of the dismantling support is large, and the installation and dismantling steps are tedious are solved, precise control and safety of construction are guaranteed, the dismantling efficiency is high, the cost is low, pollution to water is small, and operation is convenient.
本发明公开了一种陆岛围堰支撑大跨度系杆拱桥拆建机构，包括围堰设施和支撑支架，围堰设施由钢木围护结构于河道内围设而成，钢木围护结构包括由若干个外侧木桩、内侧木桩组成的两个相互平行的双排木桩结构，内部铺设防水土工布并填充河道淤泥，围堰设施内部进行排水及地面硬化；支撑支架包括支撑管墩、横向联结，支撑管墩设置有若干个并均布在系杆拱桥的拱肋两侧，相邻两支撑管墩通过横向联结固定。本发明还公开了一种陆岛围堰支撑大跨度系杆拱桥拆建施工方法。本发明解决了系杆拱桥拆除时拆除支架架设难度大、安装拆除步骤繁琐的问题，不仅保证了施工的精准控制和安全性，而且拆卸效率高，成本较低，对水体污染较小，操作方便。
Land island cofferdam supporting large-span tied-arch bridge dismantling and building mechanism and construction method
一种陆岛围堰支撑大跨度系杆拱桥拆建机构及施工方法
PENG JIANYONG (author) / XIA FENG (author) / PENG BO (author) / WANG XIANGFENG (author) / LIU WENSHENG (author) / WANG YIXIAN (author) / XI JIANAN (author) / QIAN YOUWEI (author) / ZHU LIRONG (author) / DAIZY (author)
2024-01-09
Patent
Electronic Resource
Chinese
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