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涪陵乌江大桥200米主拱拱箱,已于1988年7月11日转体合拢。本文就该桥采用的双箱对称同步转体施工工艺的设计与研究,进行简明扼要的介绍。一、概况涪陵乌江大桥位于乌江与长江汇合处上游3公里、河床断面为典型的“V”形河槽,两岸基岩裸露,为石英砂岩、厚层状,其中夹层(砂页岩、粉砂岩、砂岩等)多属薄层状。石英砂岩允许承载力[R]=400t/m~2,地质情况良好。由于两岸引道工程及城市发展需要,桥
Fuling Wujiang River Bridge 200 meters arch arch, was July 11, 1988 swivel closed. In this paper, the bridge used in the design and research of double box symmetrical synchronous swivel construction process, a concise introduction. I. Overview Fuling Wujiang River Bridge is located 3 km upstream of the confluence of the Yangtze River and the Yangtze River, the riverbed section is a typical “V” shaped channel. The exposed basement rocks are quartz sandstone and thick layer. Sandstone, etc.) are mostly thin layer. The allowable bearing capacity of quartz sandstone [R] = 400t / m ~ 2, the geological conditions are good. As cross-strait approach engineering and urban development needs, bridge