Local Site Effects Evaluation Using Geophysical Methods

Innovations in Engineering and Food Science, Shilpa Mehta,Fakhar Islam,Ali Imran, Editör, IGI Global, Isparta, ss.23-56, 2024

The waves that occur in an earthquake affect the behavior of the soil and the building

due to the structural condition of the bedrock and the physical properties of the soil

near the surface. To predict this interaction, the deep underground structure models

of the areas considered as settlements should be determined and how the earthquake

waves will be directed (macro-zoning) depending on this should be revealed. Since the

near surface features of the ground can increase the effect of earthquake waves, it is

necessary to determine the near surface properties and create their maps (micro-zoning).

Earthquake waves are formed in thick sediments compared to the rock environment

and cause great damage to both the ground and the buildings. In order to be protected

from these damages, it is necessary to determine focusing and scattering conditions

arising from the deep underground base topography. Therefore, parameters such as

maximum horizontal ground acceleration, soil liquefaction, soil dominant vibration

period, soil amplification, and near-surface soil properties should be determined.