In this paper is presented a simplified liquefaction evaluation of coastal saturated loose sands. Dynamic excitation due to earthquakes results in relative displacements of soil grains. In conditions of water saturation and impossibility of fast drainage it is caused pore pressure increase as a result of gravity loads transferring to pore water. This process may induce the total reduction in
... [Show full abstract] initial effective stresses, which practically results in loss of soil strength frequently encountered in Adriatic coastal saturated loose sands. Such a state is defined as initial liquefaction occurrence expressed with strain levels increase causing severe consequences in touristic building structures realized in those areas. Definition of liquefaction depth, mostly influenced by relative density of saturated sands in high intensity seismic areas, it is an important factor to define the foundation type as a direct contact of structural load transmitting to the soil.