A review of Beliche Dam

Beliche Dam, a zoned earthdam with rockfill shoulders and a central clay core, experienced large collapse settlements due to reservoir impounding and direct action of rainfall. Long-term field records of vertical and horizontal displacements are available as well as a set of large-scale laboratory tests on rockfill specimens. It has been the subject of several numerical analyses that failed to capture the relevant effect of weather conditions on the behaviour of the dam. Recent developments in the constitutive modelling of rockfill allow a substantial improvement of modelling capabilities, and this is illustrated in the paper. Laboratory test results under dry and flooded conditions were interpreted, and material parameters were identified. The complete history of dam construction, impoundment and rainfall was then simulated by means of a coupled flow–deformation model. Deformations during construction and impoundment have been reproduced. Long-term deformations have consistently been related to rainfall r...

[1]  J. Carrera,et al.  Numerical formulation for a simulator (CODE_BRIGHT) for the coupled analysis of saline media , 1996 .

[2]  A. Gens,et al.  Nonisothermal multiphase flow of brine and gas through saline media , 1994 .

[3]  P. Perzyna.  Fundamental Problems in Viscoplasticity , 1966 .

[4]  J. Saura,et al.  Three‐dimensional analysis of Infiernillo dam during construction and filling of the reservoir , 1983 .

[5]  E. Maranha das Neves,et al.  Prediction of construction performance of Beliche Dam , 1986 .

[6]  Eduardo Alonso,et al.  A CONSTITUTIVE MODEL FOR CRUSHED GRANULAR AGGREGATES WHICH INCLUDES SUCTION EFFECTS , 2003 .

[7]  Lidija Zdravković,et al.  Finite element analysis in geotechnical engineering , 1999 .

[8]  Y. Mualem.  A New Model for Predicting the Hydraulic Conductivity , 1976 .

[9]  E. Maranha das Neves,et al.  A back-analysis of Beliche Dam , 1997 .

[10]  Antonio Gens,et al.  Modern issues in non-saturated soils , 1995 .

[11]  Eduardo Alonso Pérez de Agreda,et al.  A model for rockill compressibility , 2001 .

[12]  E. Alonso,et al.  Construction and Impoundement of an Earthdam , 1995 .

[13]  Antonio Gens,et al.  A constitutive model for partially saturated soils , 1990 .

[14]  Eduardo Alonso,et al.  Suction effects on rockfill compressibility , 2003 .

[15]  J. L. Justo,et al.  Settlement-time behaviour of granular embankments , 2000 .

[16]  James L. Sherard,et al.  Concrete‐Face Rockfill Dam: I. Assessment , 1987 .

[17]  O. C. Zienkiewicz,et al.  VISCO-PLASTICITY--PLASTICITY AND CREEP IN ELASTIC SOLIDS--A UNIFIED NUMERICAL SOLUTION APPROACH , 1974 .

[18]  Eduardo Alonso,et al.  A model for rockfill compressibility , 2001 .