Document Type : Research Paper

Authors

• Ebrahim Asgari Kalajahi ¹
• Fatemeh Namakchi ²
• Abdolreza Vaezi Hir ¹

¹ Department of Earth Sciences, University of Tabriz

² Environmental Geology

Abstract

Landslide is one of the natural hazards which affects mountainous
areas and destroys residential areas, farms and basic facilities each
year. In addition to the damages caused by landslides on roads in
towns and villages, the natural environments are also affected by soil
erosion. The study area with an area of about 80,000ha is located in
the west of Khoy city, northwest of Iran. Some landslides have
occurred on the southern slopes which verge on the roads and
frequently damage the main road, Iran-Turkey railway and several
villages, such as Gougerd and upper Kalt village. Due to the proximity
of the study area to the main roads and residential areas and the
existence of several historical mass slides, evaluation of landslide
hazard and preparing a risk map is necessary. In this research, the
potential landslide zoning map was developed by evaluation of each
parameter influencing landslide including lithology, slope geometry,
geological structures, relative elevation, land use and coverage and
ground-water. Final zoning map was produced through overlaying of
the maps developed by scoring of the mentioned parameters. The
study area was divided in to 5 zones from potential landslide view of
point, including safe, low, medium, risk and very high risk zones.
About 23 and 5.6 percent of the total area are subjected to high risk
and very high risk landslide hazards, respectively.

Keywords

• Landslide
• Zoning
• Anbalagan method
• Khoy County

Main Subjects

• Geomorphology