The Influence of Railway Bridge Vehicle Vibration on Sand Liquefaction in a Dam Foundation

Saturated sandy soil liquefaction of a dam foundation caused by vehicle vibration was studied by using the QUAKE/W finite element software combined with a concrete project example. Two high-speed trains were used to simulate vibration under driving conditions. The results showed that foundation soil liquefaction occurred with increased depth and narrowed pile foundation design. When the pile foundation was established throughout the sand into the bedrock, the scope of liquefaction decreased, and the foundation basically remained stable. KeywordsEmbankment foundation; Vehicle vibration; Liquefaction ; Finite element