2-D NON-LINEAR FINITE ELEMENT ANALYSIS OF FOLSOM DAM: SEISMICALLY INDUCED SEPARATION AND PORE PRESSURE ALONG THE SOIL-CONCRETE INTERFACE

<p>The seismic soil-concrete interface stability of composite dams has been an area of interest to many researchers. However, the true interface behavior during a seismic event has not been well understood. During a ground shaking, bonding and de-bonding action along the interface may cause significant separation of soil and concrete surfaces, and such a separation may take place at any depth along the interface creating a stability concern for the overall dam. Moreover, the repetitive nature of bonding/debonding behavior may induce excess pore pressure along the interface, which in turn, may trigger a liquefaction failure or a hydraulic fracture in the soil. This study evaluates the potential for separation and excess pore pressure generation at the soil-concrete interface of Folsom Dam - located north-east of Sacramento, CA -using 2D Finite Element analysis software, GeoStudio-Quake/W. The separation and excess pore pressure distributions along the interface are investigated using nonlinear soil models with pore pressure generation capability and Koyna Dam and El-Centro earthquake ground motions.</p>

Name thesis:degree_name

Master of Science in Construction Engineering

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Construction Engineering

Year dc:date.available

2020

Author dc:creator

• Amoussou, Grace

Contributors dc:contributor

• Dr Adam Kaplan

• Civil Engineering
• Geotechnical Engineering
• Hydraulic Engineering
• Other Civil and Environmental Engineering
• Structural Engineering
• Transportation Engineering

Repository record dc:identifier

https://digitalcommons.kennesaw.edu/msce_etd/6

OAI identifier oai:identifier

oai:digitalcommons.kennesaw.edu:msce_etd-1004