摘要
南京长江隧道工程右汊大桥为独塔自锚式悬索桥,主塔基础(10号)在水中,为142.5 m钻孔桩,桩长87 m,主塔承台为八角形,横桥向总宽度20.7 m,顺桥向总宽度19.226 m,厚5 m。结合工程实际,主塔承台采用圆形钢板桩围堰施工,圆满完成了承台的施工。
The right-branching bridge of Nanjing Yangtze River Tunnel is a self-anchored suspension bridge with single tower. The main tower base is in water with 14φ2.5 m bored piles and 87-meter piles. The main tower has an octagonal cap, whose cross-bridge width is 20.7 meters, cis-bridge width 19. 226 meters and thickness 5 meters. In light of engineering practice, a round steel sheet pile cofferdam was used in the main tower caps and the construction of pile cap was successfully completed.
出处
《铁道建筑技术》
2009年第10期45-50,共6页
Railway Construction Technology
关键词
水中承台
圆形钢板桩
围檩
钢支撑
合龙
封底
underwater caps
round steel sheet pile
cofferdam
steel bracing
closure
back cover
