Ground surveys are the studies carried out to determine the conditions of the underground layers, their locations, what type of geological structure they are composed of, their depth, thickness, densities, electrical resistivity, seismic velocities, acceleration, groundwater depth and other dynamic parameters of these layers, and their behavior in the face of earthquakes. .

Why is Soil Investigation Done?

Soil surveys are the reports calculated according to the results of the experiments carried out on the ground and in the laboratories in order not to exceed the bearing capacity of the project site as the ground, not to cause sudden and excessive settlement and not to resonate. It has been observed that the loss of life and property after the 1999 earthquake was caused by the wrong housing. The illegal structures built here, the houses built on the wrong grounds and lands were destroyed and thousands of people lost their lives. According to the earthquake regulation issued after the 1999 earthquake; Soil survey studies have become mandatory on the land and plots where the structures will be built. According to the results of these studies, it is seen whether the land is suitable for which type of structure or not. Soil survey still maintains its importance today.

How is Soil Investigation Made?

First of all, the land is examined by making a ground survey. The geological-geophysical and geotechnical properties of the land are determined. Afterwards, drilling and geophysical studies are carried out. During this study, fill thickness, groundwater level and soil profile properties are determined. Underground structures are examined.

Which Parameters Are Determined During Soil Investigation?

1. Transport power
2. Sitting
3. Soil safety stress
4. Ground dominant vibration period
5. Seismic shear wave and compression wave
6. Ground acceleration spectrum coefficients
7. Earthquake acceleration that may occur on the construction floor in a possible earthquake
8. Dynamic elastic parameters
9. groundwater level
10. Local soil classification