Geotechnical Zoning of Municipal Districts 4 and 22 of Great Tehran

With increasing the growth of population and urbanization the importance of developing zoning maps and geological engineering maps becomes further clear. Due to the development of construction in cities and inadequate attention to geological and geotechnical issues, many technical and engineering problems were occurred in events such as earthquakes. The first step to understanding the environmental phenomena is collecting data about them and on next steps it is possible to expand knowledge about that phenomenon by data processing. In this paper an attempt is made to achieve a clear vision and comprehensive understanding of underground condition of municipal districts 4 and 22 of Great Tehran and an effort was made to draw practical geotechnical geological maps of these districts. Results indicate that subsurface soils of districts 4 and 22 have low Liquid Limit (LL) and Plastic Limit (PL) and they are non-swelling materials. With regards to the coarse-grained soil of these districts there is no possibility of liquefaction in the earthquake

Keywords:

Geotechnical zoning , Geotechnical parameters , Geophysics , GIS