Abstract: Changshao and Bamuping Qianyou River bridge is a key bridge that controls line plan of Xikang Railway. It is also one of oblique crossed multi line bridge at home at present. In this article, special hydrology around the bridge sites, hydrotechnological model tests and the designing process are to be introduced. They are helpful to the design of multi line bridges in the future.

Key words: multi line oblique crossing bridge, special hydrology, hydrotechnological mode tests, design

摘要： 长哨、八亩坪乾佑河大桥是西康线上控制线路方案的重点桥渡,也是目前国内一座斜交角度较大的多线桥 .笔者介绍了桥址处的特殊水文、水工模型试验及设计经过,对今后多线桥的设计提供帮助

关键词: 斜交多线桥, 特殊水文, 水工模型试验, 设计