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Effect of loading and suction history on time dependent deformation of coarse crushed slate
Romero Morales, Enrique Edgar; Alvarado, Clara; Alonso Pérez de Agreda, Eduardo
Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica; Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
The paper presents the results of an experimental investigation aimed at evaluating the time-dependent compressibility of coarse crushed quartzitic slate, focusing on the effects of the previ- ous loading and hydraulic history. Long-term and large diameter compression tests under oedometer conditions were performed at different total suctions (relative humidity values) and vertical stresses but following different loading and hydraulic paths. A finding, which has practical implications in earthwork constructions, is that pre-compressing at increasing overconsolidation ratios or pre-soaking the crushed material at constant and elevated stresses leads to the progressive vanishing of long-term deformations.
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de roques
Rockfills
Rock mechanics
Soils
Compression testing
Deformation
Slate
Soil mechanics
Preses d'escollera
Mecànica de roques
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CRC Press
         

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