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109  Modelli ng of Deformations Durin g Constr uction of a Large Earth Dam.. . TECHNICAL SCIENCES  Abbrev.: Techn. Sc., No 7, Y . 2 004 MODELLING OF DEFORMATIONS DURING CONSTRUCTION OF A LARGE EARTH DAM IN THE LA GRANDE COMPLEX, CANADA  Anna Szostak-Ch rzanowsk i 1  , Michel Massiéra  2 1 Canadian Centre for Geodetic Engineering, University of New Brunswick, Fredericton N.B., P.O. Box 4400, E3B 5A3 Canada 2 Faculté d'ingénierie (génie civil), Université de Moncton, Moncton, NB, E1A 3E9, Canada Ke y w o r d s: Def ormation and str ess mo dell ing, e arth dam, geot echn ica l parameter s.  A bs t r a c t Deformation of an earth dam is a complex process in which one should consider the nonlinear behaviour of the construction material, interaction between the structure and the underlying soil and rock strata, influence of water load on the structure and on the foundation bedrock, and the effects of water saturation. The deformation process can be simulated using, for example, the finite element method with the hyperbolic model of the nonlinear behaviour of the material. Due to the uncertainty of the model parameters, care- ful monitoring of the dam and its surroundings are required in order to verify and en- hance the model. The deformations and stresses that develop in embankment dams dur- ing the construction phase are presented and illustrated by analyzing the behaviour of one of the most important structures of the La Grande Hydroelectric Complex (phase I). MODELOWANIE DEFORMACJI W CZASIE BUDOWY DU¯EJ ZAPORY ZIEMNEJ W KOMPLEKSIE LA GRANDE, KANADA  Anna Szostak-Chrzanowski 1  , Michel Massiéra  2 1 Kanadyjskie Centrum Geodezji In¿ynieryjnej, Uniwersytet w New Brunswick 2 Wydzia³ In¿ynierii, Uniwersytet Moncton, Kanada ow a kl uc zo we: modelowanie deformacji zapory ziemnej, parametry geotechniczne naprê¿eñ.

Modelling of Deformations During Construction of a Large Earth Dam in the La Grande Complex

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