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DYNA

versão impressa ISSN 0012-7353

Resumo

MARTINEZ-ROJAS, Eliana; MOLINA-GOMEZ, Fausto  e  RUGE, Juan Carlos. Shear modulus of mining tailings from resonant column tests. Dyna rev.fac.nac.minas [online]. 2018, vol.85, n.205, pp.310-318. ISSN 0012-7353.  http://dx.doi.org/10.15446/dyna.v85n205.68760.

This article presents the results of seventy-two resonant column tests performed in two types of materials from the waste deposits of the Riotinto mines (Huelva - Spain). Methodology test included different conditions of effective consolidation pressure and torsional excitation level. The equipment used was a fixed-free resonant-column system. The effective consolidation pressures were established within a range between 50 - 300 kPa and the torsional excitations were equal to 0.025, 0.05, 0.1, 0.2, 0.4 and 0.8 V. It was found that such test combinations lead to angular deformations between 0.003% and 0.148%. The results indicate that it is possible to establish simple empirical functions of the stiffness module as a function of the angular deformation and the effective consolidation pressure.

Palavras-chave : resonant frequency; shear modulus; effective consolidation pressure; angular deformation.

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