Analysis of the Juturnaiba Embankment Dam Built on an Organic Soft Clay

by Roberto Q. Coutinho, (M.ASCE), Universidade Federal de Pernambuco, Recife, Brazil,
Márcio S. S. Almeida, (M.ASCE), Universidade Federal de Pernambuco, Recife, Brazil,
Jose Bernardino Borges, Universidade Federal de Pernambuco, Recife, Brazil,



Document Type: Proceeding Paper

Part of: Vertical and Horizontal Deformations of Foundations and Embankments

Abstract: The Juturnaiba Dam, located in the northern part of Rio de Janeiro State, Brazil, has 1.2 km of its length built on an organic soft clay about four meters deep. The construction of the dam was preceded by careful site investigations, including a test embankment taken to failure. This paper presents an analysis of the Juturnaiba Dam behavior by using numerical analyses (CONMULT program), classical approaches and empirical methods. The primary emphasis of the analysis is on settlement. However the study of the pore pressure increase and of the lateral displacements, both during and after construction, is shown to be relevant, and is also presented.

Subject Headings: Embankment dams | Soil analysis | Soft soils | Soil pressure | Dam failures | Soil deformation | Soil-structure interaction | Clays | Failure analysis | Brazil | South America

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