VOLKANİK ALANLARDA YAPILACAK ŞEHİR PLANLAMASINDA ÖNCELİK NE OLMALI
5th International GAP MATHEMATICS-ENGINEERING-SCIENCEAND HEALTH SCIENCES Congress, Şanlıurfa, Türkiye, 4 - 06 Aralık 2020, ss.1, (Özet Bildiri)
- Yayın Türü: Bildiri / Özet Bildiri
- Basıldığı Şehir: Şanlıurfa
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.1
- Süleyman Demirel Üniversitesi Adresli: Evet
Özet
Since our country is located in the earthquake zone,
earthquake should be considered primarily in urban planning and appropriate settlement
site selections should be made. As is known, earthquake waves are divided into
two as body and surface waves. Body waves are divided into two as P and S waves
and surface waves as R and L waves. Of these waves, S and surface waves are
destructive waves. Earthquake waves propagate in rock environments with faster,
higher frequency and smaller amplitudes. In addition, surface waves are not
effective in rock environments. On the other hand, earthquake waves progress
slower in areas saturated with water and have low frequency and large
amplitudes. In such water-saturated soft fill areas, surface waves are
extremely effective and damaging. Under normal conditions, settlement site
selection for urban buildings should be made by taking into consideration
earthquake waves. However, determination of the natural radioactivity level
should be the priority for settlement site selection in volcanic areas that are
the subject of this study. A settlement site suitable for earthquake may not be
suitable for natural radioactivity. In this case, people in settlements that
are not damaged by the earthquake will be damaged by radioactive radiation.
Isparta-Çünür region was chosen as the study area in order to reveal this
situation. Geologically, there are limestone, trachy-andesite belonging to
Gölcük volcano in the region, old and new alluvial units. Süleyman Demirel and
Isparta Applied Sciences universities and Çünür district settlement areas are
located on and around these units. Approximately forty thousand people live in
this region. Both radioactive elements with gamma-ray spectrometer and
earthquake waves with multi-sources seismic refraction studies were measured so
as to create a map on the geological units roughly specified. As a result of
the studies, external hazard index values that reveal the radiological risk
were mapped in addition to the propagation velocities of earthquake waves and
ground classifications for suitability the settlement. As a result, it was
determined that the andesite hill, which is a suitable settlement in terms of
earthquake waves, is not suitable in terms of radiological risk. For this
reason, this study suggests firstly determining the natural radiological risk,
especially for settlement site selection in volcanic areas.