Advanced Soil Mechanics (4th Edition)

The "Advanced Soil Mechanics" manual by Braja M. Das, 4th Edition, published in 2014, spans 634 pages and has an ISBN of 0415506654. This edition delves into the relationships between the maximum and minimum void ratios of granular soils and incorporates the American Association of State Highway and Transportation Officials (AASHTO) soil classification system. It covers soil compaction procedures, Proctor compaction tests, and introduces new sections on various stress scenarios. The text also discusses the compaction of clay soil for constructing clay liners in waste disposal sites, providing empirical correlations for overconsolidation ratio and compression index for clay soils. Additionally, it includes information on factors affecting friction angle of granular soils, drained failure envelopes, and secant residual friction angles of clay and clay shale. The author also introduces new correlations between field vane shear strength, preconsolidation pressure, and overconsolidation ratio of clay soils. Furthermore, the manual revises and expands information on elastic settlement of shallow foundations, precompression with sand grains, and presents parameters required for stress calculation in a three-layered flexible system. This comprehensive resource is suitable for beginning graduate students and can also serve as a reference for practicing professionals.