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The Siah Bishe Pumped Storage Dam is located in the northern part of the Alborz mountain range. The investigation results and the effect of brittle deformation of two fault sets in the left pressure shaft of Siah Bisheh Dam are discussed in this paper. The shaft is arranged in sedimentary and volcanic rocks of Triasic and Jurasic ages. The length of the shaft is 450m and its diameter is 6m with 65 degree inclination relatively south-north trend. The results of geo-engineering surveys using boreholes and statistica...

The Saghez shear zone is part of metamorphic belt of the Sanandaj-Sirjan zone in northwest Iran that uplifted during continental collision between the Afro-Arabian continent and the Iranian microcontinent. The mine is being exploited by open-pits mining, with present reserves estimated at 3.2gr/t gold. The currently favored genetic model is an example of porphyry system, with mineralization being closely to shear bands and emplacement of granit and pegmatitic veins. Rocks from Sagez shear zone consist of metavolca...

Landslide Hazard Zonation (LHZ) is a method to evaluate the risk where there is the potential for landslides. Therefore, many terrain factors affecting the landslides have been exposed firstly. The factors contributing to the hazard in an area can usually be identified, results of the investigations frequently being presented as a landslide hazard zonation map indicating zones of similar risk of the occurrence of a landslide. North railway track is one of the areas susceptible to landslides in Iran, consist of sev...