A series of laboratory tests were conducted on matched rock joint samples, no larger than 16 x 16 cm2 of section, which were extracted from an artificial joint, having 4.32 m2 in area, carved in a porphyritic granite block. These tests (1200 pull tests and 200 trials conducted in a sliding machine) involved the systematic levelling of sample middle plan...
View ArticleThis paper presents a mathematical model to reproduce long term or secondary settlement of sanitary landfills. Secondary compression is assumed to be commanded by two main processes: mechanical creep compression and the biodegradation of waste. The model introduces a biodegradation parameter that relates mass loss with volumetric variations. The biodegr...
View ArticleThis work evaluates tropical soil adsorption capacity of a hydrophobic compound (benzene). With such purpose, a lateritic soil poor in organic matter and a hydromorphic soil rich in kaolinite with a higher organic content were studied. The lateritic soil, rich in Al and Fe oxides, presented a higher sorption capacity in grain size terms for having a hig...
View ArticleThe Pinalito main hydroelectric tunnel, with a length of 11 km, is located in Cordillera Central mountain range, Dominican Republic. This mountain tunnel has been mined through extremely fractured andesitic-basaltic and rhyolitic tuffs. These rocks are been subjected to shear and collisional displacements between Caribbean and North America plates since...
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