弯曲河道桥区河段航道整治研究

Waterway Regulation Scheme for Curved River Section with Bridge

在弯曲河道建设桥梁后,由于桥区河段水流与桥轴线法线夹角、航线流速较大、通航净宽不足等原因,常导致船舶撞击桥墩等海损事故的发生,同时由于弯道的演变也会对桥区航道维护产生不利的影响;研究此类桥梁碍航问题具有重要的工程现实意义。结合工程实际,研究了弯曲河道桥区河段桥梁碍航成因,提出了整治方法与整治措施,可供类似工程参考。

After construction of bridge over curved river, due to large angle between flow to the normal of bridge′s axis,high flow speed and not wide enough clear span of bridge, ships may hit the bridge pier when passing the bridge. At the same time, the evolution of the bed of curved river can produce unfavorable influence on navigation. So, it is of great significance to study the navigation-obstructing problem of this kind of bridge. Combining the engineering practice, this paper studies the reasons of navigation obstruction at bridge section of curved river and puts forward regulation measures, which may serve as a reference for similar projects.