The most existing pier-scour equations mainly apply to uniformly shaped piers. However, pier footings may often project above the streambed because of scour. This may be caused by either long-term bed degradation or local scour. In such cases, the computation of the local bridge scour depth becomes complicated because of the difficulty in choosing an appropriate pier dimension. Referring to piers founded on piles, in previous papers some outcomes were achieved, mainly on the quasi-equilibrium scour depth. Based on additional experiments, this paper would like to come up with a deepening of the previous findings and provide new insights on the temporal evolution of the river-bed morphology around the complex pier-plinth-piles.
Effects of pile caps on local scour at bridge piers
OLIVETO, Giuseppe;
2006-01-01
Abstract
The most existing pier-scour equations mainly apply to uniformly shaped piers. However, pier footings may often project above the streambed because of scour. This may be caused by either long-term bed degradation or local scour. In such cases, the computation of the local bridge scour depth becomes complicated because of the difficulty in choosing an appropriate pier dimension. Referring to piers founded on piles, in previous papers some outcomes were achieved, mainly on the quasi-equilibrium scour depth. Based on additional experiments, this paper would like to come up with a deepening of the previous findings and provide new insights on the temporal evolution of the river-bed morphology around the complex pier-plinth-piles.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
