AN ANALYSIS OF A REAL FILL-TYPE DAM DURING CONSTRUCTION AND IMPOUNDING BY USING AN ELASTOPLASTIC MODEL FOR UNSATURATED SOILS

Abstract

  In this paper we analyzed a real fill-type dam named Minami-Aiki Dam to verify a numerical consolidation method with an elastoplastic model for unsaturated soils. The validities were conducted by comparing the analysis and measurement values during construction and first impounding. The vertical deformations calculated showed good agreements to those observed. Though the changing patterns of the measured and calculated pore water pressures were similar, the dissipation speeds were different. The earth pressures measured at the bottom of the core showed a good agreement with those calculated. This method is valid to estimate behavior of fill-type dams during construction and impounding.