Civil and Environmental Engineering

This manual presents extensive advances in methods of investigation, measurement, and analysis in the specialized field of sedimentation engineering. A supplement to the classic Sedimentation Engineering (Manual 54), this new volume not only documents the evolution of the field over a 50-year period, but also reports on the state of the practice. This manual addresses new topics in physical processes, measurements, modeling, and practice, mainly in the context of rivers and inland water bodies. With contributions from internationally recognized experts in various fields, this book will benefit hydrologists, geomorphologists, sedimentologists, land-use planners, and soil conservation specialists, as well as environmental, hydraulic, and agricultural engineers.

The definitive guide to unsaturated soil- from the world's experts on the subject. This book builds upon and substantially updates Fredlund and Rahardjo's publication, Soil Mechanics for Unsaturated Soils, the current standard in the field of unsaturated soils. It provides readers with more thorough coverage of the state of the art of unsaturated soil behavior and better reflects the manner in which practical unsaturated soil engineering problems are solved. Retaining the fundamental physics of unsaturated soil behavior presented in the earlier book, this new publication places greater emphasis on the importance of the "soil-water characteristic curve" in solving practical engineering problems, as well as the quantification of thermal and moisture boundary conditions based on the use of weather data. Topics covered include:

- Theory to Practice of Unsaturated Soil Mechanics
- Nature and Phase Properties of Unsaturated Soil
- State Variables for Unsaturated Soils
- Measurement and Estimation of State Variables

This textbook discusses the fundamental principles of sediment transport in the geophysical context of rivers. It is intended as both a course textbook and as a guide for the practical engineer.

We begin by describing phenomena such as bed load and suspension transport from a classical perspective by applying the mean wall shear stress approach while additionally incorporating a statistical description of the inherent wall shear stress fluctuations.

Concepts from turbulent flow regime are introduced to address the limitations of the classical approach to various aspects of sediment transport, such as the Newtonian description of dense suspensions, or the description of the self-organization processes for developing bed forms, or the prediction of transport in very rough bed conditions.

In this context coherent structures and flow separation mechanisms are developed as important new elements, which allow using topological rules for the formulation of transport especially for developing bed forms.