Response of sand column under impact loading
Lim, Say Keat
Date of Issue2005
School of Civil and Environmental Engineering
Dynamic compaction (DC) has been used widely as an effective method in improving the mechanical properties of loose sand deposits often found in reclaimed land. The process involves dropping a large pounder onto the ground surface, causing a densification of the soil as the impact stress wave propagates downward. In the case of near-saturation condition in reclaimed land, this impact stress might even produce a possible liquefaction of the sand. As not much research have been done to observe the pore-water pressure response of nearly saturated sand undergoing impact loading, the occurrence of such a liquefaction phenomena remains difficult to be firmly established.
Nanyang Technological University