Advanced Unsaturated Soil Mechanics and Engineering ebook is available to be downloaded here.
- Title: Advanced Unsaturated Soil Mechanics and Engineering
- A[uthor: Charles W. W. Ng, Bruce Menzies
- Publisher: Taylor & Francis
- Pages: 710
Civil engineers build on or in the earth’s surface. Most of the earth’s land surface comprises notoriously hazardous geomaterials called ‘unsaturated soils’. These soils are a hazard to earth structures and earth-supported structures because on wetting, by rain or other means, they can expand or collapse with serious consequences for cost and safety. This book puts the mechanics and engineering of unsaturated soils into a logical framework for civil engineering analysis and design. It also explains the laboratory and field testing and research that are the logical basis of this modern approach to safe construction in these hazardous geomaterials.
This state-of-the-art book is written in four parts as follows:
- Physical and flow characteristics of unsaturated soils;
- Collapse, swelling, shear strength and stiffness of unsaturated soils;
- State-dependent elasto-plastic modelling of unsaturated soils;
- Field trials and numerical studies in slope engineering of unsaturated soils.
This book is unique because:
- it illustrates the importance of state-dependent soil–water characteristic curves;
- highlights modern soil testing of unsaturated soil behaviour, including accurate measurement of total volume changes and the measurement of anisotropic soil stiffness at very small strains;
- introduces an advanced state-dependent elasto-plastic constitutive model for both saturated and unsaturated soil;
- demonstrates the power of numerical analysis which is at the heart of modern soil mechanics;
- studies and simulates the behaviour of loose fills from unsaturated to saturated states, explains the difference between strain-softening and static liquefaction, and describes real applications in unsaturated soil slope engineering;
- includes purpose-designed field trials to capture the effects of two independent stress variables, and reports comprehensive measurements of soil suction, water contents, stress changes and ground deformations in bare slopes;
- introduces a new conjunctive surface and subsurface transient flow model for realistically analysing rainfall infiltration in unsaturated soil slopes, and illustrates the importance of the flow model in slope engineering.