Author(s): Kai Wei; Fang Qiu; Qiqi Xiang
Linked Author(s):
Keywords: Local scour; Caisson; Construction; Suspended caisson
Abstract: Caisson and caisson-pile foundations are widely used to support long-span bridges, whose local scour has been extensively studied. However, most of the research has focused on the local scour of the foundations fully settled into the sediment, and research on the local scour of foundations during settlement construction is lacking. During construction, the caisson will undergo the process of suspended positioning and sinking, and the caisson section of the caisson-pile foundation will suspend due to the process of pile sinking. When the caisson suspends in water, the flow under the caisson will accelerate, which impacts the scour of the riverbed and increases the settlement difficulty and risk of the caisson. Therefore, it is very necessary to study the local scour of the suspended caisson.
Year: 2023