This study provides the geomechanical characterization of a rock mass constituted by a mixture of blocks embedded in a sandy silt matrix. This is usually known as a bimrock (block-in-matrix rock; Medley, 1994). The characterization was performed by means of field and laboratory tests with the aim of observing the influence of the scale effect. The study also includes a comparative analysis between the results obtained in the research and the proposals made for the characterization of bimrocks and rock masses in general. The main result concludes that the shear strength parameters of the laboratory scale samples are higher than those found in the field, contrasting with the deformation modulus that normally shows higher values in the field tests.
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ISRM Conference on Rock Mechanics for Natural Resources and Infrastructure - SBMR 2014
September 9–13, 2014
Goiania, Brazil
Geomechanical Characterization for the Doán Formation Breccias, Siquirres, Costa Rica
Danilo A. Jiménez Ugalde;
Danilo A. Jiménez Ugalde
Asociación Costarricense de Geotecnia
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Carolina Gómez Méndez;
Carolina Gómez Méndez
Instituto Costarricense de Electricidad
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Fabián A. Arquín Bolaños;
Fabián A. Arquín Bolaños
Instituto Costarricense de Electricidad
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Jorge A. Salazar Chacón;
Jorge A. Salazar Chacón
Instituto Costarricense de Electricidad
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Alexis Cerdas Salas
Alexis Cerdas Salas
Instituto Costarricense de Electricidad
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Paper presented at the ISRM Conference on Rock Mechanics for Natural Resources and Infrastructure - SBMR 2014, Goiania, Brazil, September 2014.
Paper Number:
ISRM-SBMR-2014-019
Published:
September 09 2014
Citation
Ugalde, Danilo A. Jiménez, Méndez, Carolina Gómez, Bolaños, Fabián A. Arquín, Chacón, Jorge A. Salazar, and Alexis Cerdas Salas. "Geomechanical Characterization for the Doán Formation Breccias, Siquirres, Costa Rica." Paper presented at the ISRM Conference on Rock Mechanics for Natural Resources and Infrastructure - SBMR 2014, Goiania, Brazil, September 2014.
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