Unsaturated Soils: Proceedings of the Third International Conference, UNSAT2002, Recife, Brazil, 10-13 March 2002José Fernando Thome Jucá, Tácio M. P. de Campos, Fernando A. M. Marinho Unsaturated materials comprise residua, collapsible and expansive naturally occurring soils, compacted soils and, more recently, residues of solid wastes. The engineering problems associated with unsaturated materials range from those related to conventional geotechnical works (e.g. foundations, pavements, slopes and excavations, retaining structures, earthdams, irrigation canals, tunnelling, compacted embankments) to those included in the environmental area (e.g. natural slope instability, erosion and subsidence processes, tailings, residues or solid waste disposal, contaminant transport, remediation of contaminant sites, engineered barriers for environmental protection, re-use of residues). This book, published in three separate volumes, comprises a selection of selected and invited papers presented at the Third International Conference on Unsaturated Soils – UNSAT ‘2002 – that took place in Recife, Brazil, form 10th to 13th March 2002. The book is of interest to consultants, researchers, practitioners, lecturers and students with a background in geotechnical engineering, environmental engineering and engineering geology. |
Contents
Coupled finite element analysis of infiltration into unsaturated soils | 3 |
Prediction of hydrological parameters by mechanical stress states | 9 |
Th Baumgartl R Horn B G Richards | 15 |
J R McDougall I C Pyrah A Tarantino | 21 |
A PérezGarcía D HurtadoMaldonado E RojasGonzález | 27 |
Influence of the presence of a partially saturated layer on the interpretation of field water tests | 33 |
Inverse modeling technique for determining unsaturated hydraulic properties of soils | 39 |
application to unsaturated hydraulic | 45 |
J L Briaud S Hoffmann T Posey G Woodfin | 181 |
E Rojas R Cervantes P Garnica | 195 |
Relationship between soilwater characteristic curve and void ratio | 209 |
Numerical modelling of dam using the modified Camclay extended to the unsaturated condition | 221 |
An analysis of the consolidation of unsaturated soils | 239 |
Influence of grain size distribution and mineralogy of unbound aggregates on soilwater | 255 |
Guillot J M Fleureau M AlMukhtar F Bergaya | 271 |
Courbes de retention deau dun profil dalteration | 289 |
Use of HYDRUS2D to simulate the experiment of drainage accomplished in the alluvial flow plain | 51 |
Hierarchy of physical phenomena governing the contamination of subsurface water sources | 59 |
Modelling NAPL transport in unsaturated soils | 65 |
Modeling the geochemical behaviour of an unsaturated clay subjected to heating and hydration | 71 |
Effects of heat convection and phase changes on heat and fluid transfer in unsaturated porous media | 77 |
Modelling gas migration through clays | 95 |
Role of degree of saturation on the normally consolidated behaviour of unsaturated soils | 115 |
Sheng D W Smith S W Sloan A Gens | 133 |
Anisotropic stressstrain law for wettinginduced soil collapse | 151 |
Mechanical behavior of rock materials due to wetting and their modeling | 167 |
Soil moisture profiles of unsaturated colluvial slopes in alpine regions North Eastern Italy | 307 |
Some factors that influence soil suction measurements using a thermal conductivity sensor | 325 |
Monitoring the field soil matrix potential using mercury tensiometer and granular matrix sensors | 335 |
Z Wang Y D | 351 |
Prediction of degree of saturation in unsaturated soils using image analysis technique | 369 |
Air conductivity of a heavily compacted swelling claysand mixture | 383 |
Characterization of the permeability of the loessic soils in the Center of Argentina | 401 |
A B Fourie W S Mathews R P Hattingh | 417 |
431 | |
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Common terms and phrases
air entry value Alonso analysis behaviour Campos & Marinho clay coefficient compacted compression constant Darcy's law degree of saturation density depth determined deviatoric drying effective stress Engineering equation expansive soils filter paper flow Fredlund function Genuchten Geotechnical Engineering hydraulic conductivity hysteresis infiltration initial intrinsic permeability ISBN 90 Jucá kN/m³ laboratory layer liquid Marinho eds material matric suction matrix potential measured method moisture content neutron numerical obtained oedometer tests parameters Paularo permeability phase plastic porosity porous media predicted presented profiles Rahardjo relationship residual sand saturation degree sensors shear strength shown in Figure shrinkage simulation Sivakumar slope soil samples Soil Science soil specimen soil suction soil-water characteristic curve strain Suction kPa suction values SWCC swelling Swets & Zeitlinger Table temperature tensiometer tests tion total suction unsaturated soils vapour variables variation void ratio volumetric water content water retention curve wetting yield surface
Popular passages
Page 415 - LD, and Hamilton, DA, 1970, Translocation of hydrophobic substances into soil by burning organic litter: Soil Science Society of America Proceedings, v.