Investigating of Geotechnical Parameters of Alluvial Foundation in Zaram-Rud Dam Site, North Iran
Kobra Poorbehzadi1, Abdollah Yazdi2*, Ebrahim Sharifi Teshnizi3, Rahim Dabiri4
1Department of Geology, Kahnooj branch, Islamic Azad University, Kahnooj, Iran.
2*Assistant Professor, Department of Geology, Kahnooj branch, Islamic Azad University, Kahnooj, Iran.
3PhD, Engineering Geology, Department of Geology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
4Associate Professor, Department of Geology, Mashhad branch, Islamic Azad University, Mashhad, Iran.
Geological parameters and engineering geology play a key role in the design and construction of dams. In this regard, the role of natural factors is never more important than the geological factors and engineering geology. However, this does not mean that only the characteristics of the formation should be obtained. Rather, the available materials and elements are more important than other materials. There are numerous examples of neglecting the geology of the site and the conditions to build the dam that have led to serious problems and financial losses during the construction. The Zaram-Rud Dam is located in Northern Iran in Mazandaran Province, about 20 km east of Sari over the Zaram-Rud River. In this site, based on the excavated boreholes, the geomechanical and geotechnical properties of the site are extracted, using the engineering geology and geotechnical conditions of the dam site, the depth texture, compaction texture, and permeability texture are investigated. The results indicated that the highest depth texture was of clay with low plasticity type in the site. Moreover, based on the compaction texture, it is in the “Hard” to “Very Dense” classes. Finally, based on the permeability texture of the alluvial foundation site in the riverside, the study area is in the “permeable” to the “semipermeable” classes.
Key words: Engineering Geology, Geotechnical Parameters, Zaram-Rud Dam Site, Alluvial Foundation, North Iran.