Evaluating Liquefaction Potential in an Embankment Dam Foundation Using Shear Wave Velocity Measurements

摘要

It seems that probably the most important cause of instability of embankment dams is the occurrence ofliquefaction during strong ground motions. At the present, there is a common approach to assess theliquefaction potential of soils, namely the simplified procedure using the shear wave velocity developed inthe course of following decades. In this paper, liquefaction evaluation procedure with case study of Silvehdam foundation using shear wave velocity measurements is discussed. Silveh earth-storage dam, with102 m height; is under construction in North-West of Iran. Due to numerous and various tectonicoccurrences, the area of dam site is known as one of high activity zones and earthquake-prone regions ofIran. In purposed location of dam, alluvium foundation contains mostly fine to medium sand withmaximum depth 60m. Finally the factor of safety against liquefaction was calculated. Based on outcomes,the investigated area has no potential for liquefaction.