Location

St. Louis, Missouri

Session Start Date

4-2-1995

Session End Date

4-7-1995

Abstract

Prior to 1970, the majority of earth and rockfill dams were constructed with little regard for earthquake resistant design- especially in the Pacific Northwest which, at that time, was considered an area of low to moderate seismic activity. Since the early 1970's, and in particular since the near-catastrophic failure of the Lower San Fernando Dam in 1971, the vulnerability of hydraulic fill dams to pore pressure build-up and loss of strength as a result of earthquake shaking is well documented. In contrast, very few case histories exist on the liquefaction susceptibility of saturated gravel filters in zoned embankments. This paper summarizes a detailed finite-element, seismic stability analysis for a dam which has a saturated gravel filter of unknown relative density under the entire downstream shell of the embankment.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Third Conference

Publisher

University of Missouri--Rolla

Publication Date

4-2-1995

Document Version

Final Version

Rights

© 1995 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Gravel Liquefaction Analysis of an Embankment Dam

St. Louis, Missouri

Prior to 1970, the majority of earth and rockfill dams were constructed with little regard for earthquake resistant design- especially in the Pacific Northwest which, at that time, was considered an area of low to moderate seismic activity. Since the early 1970's, and in particular since the near-catastrophic failure of the Lower San Fernando Dam in 1971, the vulnerability of hydraulic fill dams to pore pressure build-up and loss of strength as a result of earthquake shaking is well documented. In contrast, very few case histories exist on the liquefaction susceptibility of saturated gravel filters in zoned embankments. This paper summarizes a detailed finite-element, seismic stability analysis for a dam which has a saturated gravel filter of unknown relative density under the entire downstream shell of the embankment.