The Effect Of Varying Geometry On The Amplification Of Ground Motion On Zoned Earthen Dams

Stability and safety are very important issues for embankment dams built in seismicrnregions. Earthquakes impose additional loads on to embankment dams over thosernexperienced under static conditions that could cause settlement and longitudinal andrntransverse cracking of the embankment, particularly near the crest of the dam. Thernmain objective of this study is to conduct seismic analysis of a zoned earth dam tornobserve the effect of dam geometry on the amplification of ground motion within thernbody of the dam. This can be done using GeoStudio which is a finite element basedrnsoftware. A typical dam cross section with fixed slope and different geometric sizesrnon top of different foundations have been analyzed. Thus real earthquake records arernused as input motion with varying peak ground acceleration. The results obtainedrnfrom the study show that varying the geometry together with the ground motion andrnpeak ground acceleration values have significant effect on the ground motionrnamplification within the dam body.

Get Full Work

Report copyright infringement or plagiarism