Analysis of a failed basal reinforced embankment

Smita Narayan, Shobha K. Bhatia, Brian W. Corcoran, Ted R. Nabavi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An interesting failure involving geosynthetic basal reinforcement for embankments constructed on soft soil occurred at the Fresh Kills Landfill located on Staten Island, New York. The failure occurred in two stages, in May 1997 and April 1998, respectively. In this study, an attempt has been made to model the embankment from this case history using finite differenc software - FLAC (Fast Lagrangian Analysis of Continua, Itasca Consulting Group, 1996). The goal of such a study is to develop the Finite Difference model as an approximate design tool for future reinforced embankments. FLAC is a two-dimensional finite-difference code that uses an explicit time-marching method to solve governing field equations. The paper presents the results of such an analysis and compares them to the field results. Various stages of construction are simulated by applying different model loading conditions at different stages of the analysis. The development of excess pore water pressures with staged construction are captured by using the undrained mode of analysis. The limits of failure and zone of movement are found to be strikingly similar to the field observations. It is expected that the proposed research will contribute to the state of the art of analyzing and designing embankments reinforced with geosynthetics in basal layers.

Original languageEnglish (US)
Title of host publicationProceedings of Sessions of Geo-Denver 2000 - Advances in Transportation and Geoenvironmental Systems Using Geosynthetics, GSP 103
Pages398-417
Number of pages20
DOIs
StatePublished - Dec 1 2000
EventSessions of Geo-Denver 2000 - Advances in Transportation and Geoenvironmental Systems Using Geosynthetics, GSP 103 - Denver, CO, United States
Duration: Aug 5 2000Aug 8 2000

Publication series

NameProceedings of Sessions of Geo-Denver 2000 - Advances in Transportation and Geoenvironmental Systems Using Geosynthetics, GSP 103
Volume291

Other

OtherSessions of Geo-Denver 2000 - Advances in Transportation and Geoenvironmental Systems Using Geosynthetics, GSP 103
CountryUnited States
CityDenver, CO
Period8/5/008/8/00

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Transportation

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    Narayan, S., Bhatia, S. K., Corcoran, B. W., & Nabavi, T. R. (2000). Analysis of a failed basal reinforced embankment. In Proceedings of Sessions of Geo-Denver 2000 - Advances in Transportation and Geoenvironmental Systems Using Geosynthetics, GSP 103 (pp. 398-417). (Proceedings of Sessions of Geo-Denver 2000 - Advances in Transportation and Geoenvironmental Systems Using Geosynthetics, GSP 103; Vol. 291). https://doi.org/10.1061/40515(291)27