基底冲刷对桥墩安全性影响研究

Research about the influence of the scouring of the foundation on the bridge pier's security

文章研究了冲刷造成桥墩倾覆和其他所有可能的破坏,针对湖南资水大桥实例,对可能的冲刷破坏进行了分析和研究,用数值积分法计算了基底冲刷对基础检算各项目的影响,包括冲刷对倾覆稳定性、墩顶弹性水平位移和基底压应力的影响3个基本部分,最终得出基底冲刷对桥墩安全性的影响。

This paper researches the overturns of the bridge the conditions of the scouring. Through the research of the pier and other all possible destructions under example of the Zi River in Hunan Province, this article carries through the analysis and research of the possible scouring destruction. The effects of the scouring of the foundation is calculated with the numerical integration, including three major components, that is the effects of the scouring on the overturns stability, elastic horizontal departure of the pier top and the basis compressed stress. At last it gives a conclusion of the effects of the scouring of the foundation on bridge pier＇s security.