Slope failure at the Paraná shoreline, Argentina

Author(s): 
Alejo Sfriso
Date: 
Thursday, June 26, 2003
First presented: 
12th Panamerican Conference on Soil Mechanics and Geotechnical Engineering, Cambridge, Mass.
Type: 
Published paper
Category: 
Geotechnical

A 80000 m2, 3.5 m high embankment for a container yard was constructed on the right margin of the Paraná de las Palmas River in Zárate, Argentina. An aditional temporary embankment, 3.5 m high, was put on top of it to speed up the consolidation process of underlaying soft Postpampeano clays and organic soils. The construction of the preload embankment took about four months. The preload was delayed in a small area of 6000 m2 because of harbour activities. Several months later, and using the same equipment, the contractor completed the preload embankment of this small area within ten days. One day after completion of the preload, a massive slope failure occurred. In this paper, the results of the analyses of the slope failure, the remediation action undertaken and some comments on the behavior of the soils at the Paraná shoreline are presented.

Feature Author

Alejo Oscar Sfriso

Alejo O. Sfriso is a Principal Engineer with 25 years of experience in geotechnical engineering for infrastructure and mining works. He is an expert in the application of numerical methods for geotechnical design and analysis. In addition to his activity at SRK, he is the Director of AOSA - Geotechnical Laboratory, Professor of Soil Mechanics and Geology of the University of Buenos Aires, Vice President for South America of the International Society of Soil Mechanics and Geotechnical Engineering for the period 2017 - 2021, former Professor of Geotechnics at the National University of La Plata and former President of the Argentinean Society of Geotechnical Engineering.

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