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 of liquefaction during strong ground motions. At the present, there is a common approach to assess the liquefaction potential of soils, namely the simplified procedure using the shear wave velocity developed in the course of following decades. In this paper, liquefaction evaluation procedure with case study of Silveh dam foundation using shear wave velocity measurements is discussed. Silveh earth-storage dam, with 102 m height; is under construction in North-West of Iran. Due to numerous and various tectonic occurrences, the area of dam site is known as one of high activity zones and earthquake-prone regions of Iran. In purposed location of dam, alluvium foundation contains mostly fine to medium sand with maximum depth 60m. Finally the factor of safety against liquefaction was calculated. Based on outcomes, the investigated area has no potential for liquefaction.