A laboratory study on the behaviour of shallow foundation in vibrated marine residual soil / Tracy Anak Lawrence Ghundy

The recent earthquakes experience enhanced the important of earthquake engineering
related study. This research emphasized on the effects of vibrating on shallow
foundation in residual marine alluvial soil. Shaking table model tests are considered as
one of the best methods for simulation of seismic loading and it also provides a better
understanding of the behaviour and performance of ground during shaking. The soil
samples tested were collected from local alluvial marine soil underneath Penang Bridge
near Seberang Perai. A series of experiments was carried out on a shaking table in order
to monitor the behaviour of shallow foundation due to seismic loading and vertical
loading. Five series of model tests were performed with a square foundation and one
series of was performed with a rectangle foundation. It is found that the displacement of
the foundation during strong shaking showed a gradual accumulation. Higher load
applied on the foundation resulting a higher vertical and rotational displacement. The
mechanism of failure by rotation and vertical displacement were clearly illustrated.