Soil is not a manufactured material like steel or concrete. It is heterogeneous. Consequently, textbook problems often involve interpreting site conditions. The Holtz and Kovacs text is famous for its practical, scenario-based problems. The solution manual clarifies the authors' intent. Did they assume the water table was at the ground surface or 5 feet deep? The manual elucidates these assumptions, teaching students how to interpret real-world data.
First published in 1981 and now in its 2nd edition (Pearson, 2011), An Introduction to Geotechnical Engineering by Robert D. Holtz, William D. Kovacs, and later Thomas C. Sheahan is widely regarded as one of the most rigorous and practical textbooks in civil engineering. Unlike more introductory texts, this book emphasizes: Soil is not a manufactured material like steel or concrete
This is where the becomes invaluable.
Holtz & Kovacs have embedded in each chapter. Before searching for a solution manual, rework those examples with the book closed. The Holtz and Kovacs text is famous for
Using this only to copy is useless. Instead, cover the solution, solve yourself, then compare — and if your answer differs, find your mistake (e.g., forgetting to subtract pore pressure). cover the solution