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Influence of variables related to soil weathering on the geomechanical performance of tropical soils

Journal of Rock Mechanics and Geotechnical Engineering 2023年第9期15卷 2423-2440页

作者： rodrigo cesar pierozan Gregorio Luís Silva Araújo Ennio Marques Palmeira Celso Romanel Department of Civil Engineering Federal Institute of EducationScienceand Technology of RondoniaPorto VelhoROBrazil Department of Civil and Environmental Engineering University of BrasiliaBrasiliaDFBrazil Department of Civil and Environmental Engineering Pontifical Catholic University of Rio de JaneiroRio de JaneiroRJBrazil

This paper presents an experimental and analytical investigation of the influence of variables related to soil weathering on the geomechanical performance of sand-silt mixtures containing lateritic soils,*** weathered tropical soils with the influence of interparticle *** sand-silt mixtures containing different relative proportions between uniform sand and lateritic soil were produced,and geomechanical soil characterization tests were *** on the results,a transition from a primarily coarse-to a fine-grained prevailing soil structure was found to cause considerable impact on the geomechanical performance of these soils,as evidenced by design variables related to soil mineralogy and size distribution ***,fines contents of both individual soil particles and soil aggregations were found to correlate with experimental results,while the relative proportion between sesquioxides(aluminum,and iron oxides),and silica,***-silica ratios(SSR^(-1)),facilitated estimates concerning changes in geomechanical ***,the application of the sandsilt mixtures containing lateritic soil on soil walls reinforced with polymeric strips was also evaluated,further emphasizing the potential advantages of adopting variables related to soil weathering on design guidelines concerning tropical soils.

关键词： Sesquioxides-silica ratio Tropical soils Sand-silt mixtures Lateritic soil Reinforced soil walls

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