Mecanica De Suelos - Juarez Badillo Tomo 2.pdf May 2026

Mecánica de Suelos, Tomo 2 by Juárez Badillo and Rico Rodríguez is a masterful application of classical soil mechanics to real-world foundation and earth retention design. Its clarity, depth, and inclusion of local soil types make it irreplaceable for Spanish-speaking geotechnical engineers. While modern engineers should complement it with texts on numerical modeling and contemporary standards (e.g., Eurocode 7, AASHTO), the fundamental principles of lateral pressure, bearing capacity, and slope stability have not changed. This volume remains a definitive reference and a model for pedagogically excellent engineering textbooks.

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Tomo 2 meticulously presents Terzaghi’s bearing capacity equation for shallow foundations: [ q_u = c N_c + \gamma D_f N_q + 0.5\gamma B N_\gamma ] Juárez Badillo provides extensive tables of bearing capacity factors (N_c, N_q, N_\gamma) for general and local shear failure modes. The authors critique Terzaghi’s assumptions (e.g., neglecting shear above the base) and introduce modifications by Meyerhof and Hansen, which account for foundation shape, load inclination, and depth factors. Consolidation Tests:

Given the authors’ Mexican background, Tomo 2 is unique in its detailed treatment of volcanic soils with high void ratios, low density, but high friction angles. Design recommendations are provided for foundations in these problematic materials.

Identification methods (free swell test, suction) and mitigation techniques (lime stabilization, moisture barriers) are outlined.

For infinite slopes, the factor of safety (FS) is derived as: [ FS = \frac\tan\phi\tan\beta + \fracc\gamma z \cos^2\beta \tan\beta ] For finite slopes, the authors focus on the Swedish Circle Method (Fellenius) and the Bishop Simplified Method. Tomo 2 includes hand-calculation templates and monographs for locating the critical slip circle.