铁路桥梁浅基冲刷防护方案探讨

桥梁基础长期处于水环境中,在水流冲刷作用下,河床下切导致基础埋置深度减小,容易使基础产生病害进而影响结构强度和稳定性,同时降低地基基础承载力。通过分析河床冲刷对基础承载力的影响,结合铁路桥梁基础加固防护工程实践,探讨基础加固防护方案的合理性与可行性,对有效预防和整治因基础冲刷而产生的桥梁病害具有重要意义。

Discussion on Shallow Foundation Scour Protection Scheme of Railway Bridge

The bridge foundation is in the water environment for a long time. Under the action of water erosion,the bottom cut of the riverbed leads to the decrease of the buried depth of the foundation,which is easy to cause the foundation to produce diseases,thus affecting the strength and stability of the structure,and reducing the bearing capacity of the foundation. The influence of riverbed scour on foundation bearing capacity is analyzed in this paper. Combining with the practice of railway bridge foundation reinforcement and protection,the rationality and feasibility of foundation reinforcement and protection scheme are discussed. The analysis results of this paper are of great significance for effectively preventing and remediation of bridge diseases caused by foundation erosion.