Author(s): Giancarlo Chiaia; Leonardo Damiani; Gennaro Ranieri
Linked Author(s): Leonardo Damiani
Keywords: Beach protection; Drainage; Water Table; Physical model; Wave runs
Abstract: The results of the experiments carried out on a two-dimensional physical model (in a Froude scale 1: 10) of a beach equipped with a drainage system are shown in this paper. The study has been carried out to investigate thoroughly some aspects emerged from previous tests. The problem concerns the system efficiency when there are wave runs having different characteristics and beach profile changes. The experimental facilities, fully described in a previous paper (Chiaia et al., 2004), are made up of four drains arranged in parallel with the shoreline and at different intervals from it. The W. T. monitoring system, which was originally made up of 8 piezometers put upstream and downstream from each drain, has been considerably improved by inserting 8 more pressure probes and an electronic system of level reading. The new experimental configuration has allowed to get some useful information on the hydraulics of the draining pipes. The experiments have been carried out by using 5 different wave runs representative of summer and winter sea states (Darlymple, 1992). The use of the “depression ratio” parameter introduced in a previous paper has allowed to confirm the system efficiency in different configurations.
Year: 2005