Unsaturated soil mechanics with probability and statistics
著者
書誌事項
Unsaturated soil mechanics with probability and statistics
CRC Press, c2020
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注記
Includes bibliographical references and index
内容説明・目次
内容説明
Soil is fundamentally a multi-phase material - consisting of solid particles, water and air. In soil mechanics and geotechnical engineering it is widely treated as an elastic, elastoplastic or visco-elastoplastic material, and consequently regarded as a continuum body.
However, this book explores an alternative approach, considering soil as a multi-phase and discrete material and applying basic Newtonian mechanics rather than analytical mechanics. It applies microscopic models to the solid phase and fluid phases, and then introduces probability theory and statistics to derive average physical quantities which correspond to the soil's macroscopic physical properties such as void ratio and water content.
This book is particularly focused on the mechanical behaviour of dry, partially saturated and full saturated sandy soil, as much of the physicochemical microscopic characteristic of clayey soil is still not clear. It explores the inter-particle forces at the point of contact of soil particles and the resultant inter-particle stresses, instead of the total stress and effective stress which are studied in mainstream soil mechanics. Deformation and strength behaviour, soil-water characteristic curves, and permeability coefficients of water and air are then derived simply from grain size distribution, soil particle density, void ratio and water content.
A useful reference for consultants, professional engineers, researchers and public sector organisations involved in unsaturated soil tests. Advanced undergraduate and postgraduate students on Unsaturated Soil Mechanics courses will also find it a valuable text to study.
目次
Introduction. Review of probability theory and statistics applicable to soil. Microscopic models of soil using probabilistic distributions. Microscopic physical quantities derived from void ratio and probability distributions. Inter-particle force vectors and inter-particle stress vectors. Modeling of pore water retention by elementary particulate model (EPM). Modeling of pore water and pore air flows by elementary particulate model (EPM). Stability analysis by proposed model. Deformation analysis using proposed models. Numerical simulation for saturated-unsaturated soil tests. Issues to be solved in future. Index.
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