ABSTRACT In this paper, the numerical investigation of a high deck open quay wall structure, supported on piles partially embedded in a porous embankment is presented. The governing equations solved are the Reynolds Averaged Navier-Stokes (RANS) equations of motion, while the two equation RNG turbulence transport model is applied. Parametric studies have been carried out for two different wave lengths, two structure clearances and two inclinations of the porous embankment. The forces exerted on the piles and on the underside of the deck of the quay structure due to waves are computed. The forces exerted on a single cylindrical pile computed with the present numerical model are compared with those calculated through the analytical equation of Morison. The computed pressures on a deck structure are compared with the experimental results of the investigation of other researchers.
INTRODUCTION Quay walls are marine structures, generally parallel to the shore. They are broadly classified into two main types, quays with solid (closed) construction, like sheet and gravity walls with a solid vertical berthing face, and quays with an open construction, having a suspended deck supported on piles (British Standard's Institution, 1988). The type of the open quay construction is not in common use worldwide. However, in cases where there is need for wave absorption or there are favorable ground conditions, the open quay is preferable against the solid one (PIANC, 1997). The presence of the porous rubble slope in the structure of the open quay is responsible for the wave energy absorption and the reduction of the wave reflection. Furthermore, in ports with poor near surface soils but with good end bearing capacity for piles, an open pile supported quay would be most economical (Department of Defense, 2005). However, an open structure is proved to be more delicate than a solid one.