Sağlık District Landslide (Ordu, Turkey)


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HATİPOĞLU İ. K., UZUN A., ZEYBEK H. İ., HATİPOĞLU Ş. C.

Jeomorfolojik Araştırmalar Dergisi (Online), cilt.0, sa.6, ss.56-66, 2021 (Hakemli Dergi) identifier

Özet

Landslides cause loss of life and property from time to time. In Turkey, the Black Sea Regionis the region where landslides are seen most frequently. In this study, Sağlık DistrictLandslide that occurred on May 15th, 2019 in the Central Black Sea Region was examined.This study aims to investigate the occurrence of landslide and its consequences. For thispurpose, area was visited and measurements were performed, soil samples and photos weretaken. The region which has a rough terrain, receives precipitation throughout the year. Thesite has volcanic bedrock and thick debris and ground cover on it. The liquefaction limit ofthe soil is between 45.7 and 47.8 and the plasticity limit is between 20.51 and 22. Snowmeltis the main factor that triggers landslides in the work area. Also, turning forests intoagricultural areas, opening roads crossing the slopes, additional weights created by houses,water leaking from the sewer network to the ground among preparative conditions oflandslides. Stress cracks that started to occur in the crown part of the landslide three yearsago started to expand on the day of the incident. The authorities who realized this evacuatedthe houses being under threat. Despite this, 22 buildings were destroyed and 8 hectares ofagricultural land were damaged. It has been proposed to establish new settlements far fromthe landslide zone and the people in the landslide zone be moved to safe areas.