Unsaturated Soils: Research and Applications: Volume 2

✍ Scribed by Ehsan Nikooee, Ghassem Habibagahi, S. Majid Hassanizadeh, Arsalan Ghahramani (auth.), Claudio Mancuso, Cristina Jommi, Francesca D’Onza (eds.)

• Publisher: Springer-Verlag Berlin Heidelberg
• Year: 2012
• Tongue: English
• Leaves: 437
• Edition: 1
• Category: Library

✦ Synopsis

These volumes contain the contributions to the Second European Conference on Unsaturated Soils, E-UNSAT 2012, held in Napoli, Italy, in June 2012. The event is the second of a series of European conferences, and follows the first successful one, organised in Durham, UK, in 2008. The conference series is supported by Technical Committee 106 of the International Society of Soil Mechanics and Geotechnical Engineering on Unsaturated Soils. The published contributions were selected after a careful peer-review process. A collection of more than one hundred papers is included, addressing the three thematic areas experimental, including advances in testing techniques and soil behaviour, modelling, covering theoretical and constitutive issues together with numerical and physical modelling, and engineering, focusing on approaches, case histories and geo-environmental themes. The areas of application of the papers embrace most of the geotechnical problems related to unsaturated soils. Increasing interest in geo-environmental problems, including chemical coupling, marks new perspectives in unsaturated soil mechanics. This book will provide a valuable up-to-date reference across the subject for both researchers and practitioners.

✦ Table of Contents

Front Matter....Pages 1-13
Front Matter....Pages 1-2
The Effective Stress in Unsaturated Soils: Insights from Thermodynamics....Pages 5-11
The Meaning of Stresses and Strains in Unsaturated Soils....Pages 13-21
The Yielding of Unsaturated Granular Materials....Pages 23-29
Shear Strength and Negative Water Potential in Unsaturated, Compacted Clays....Pages 31-37
Modified Grading Curve – SWCC Relations....Pages 39-46
Fractal Soil-Water Characteristics with Hysteresis....Pages 47-53
Modelling the Water Retention Domain of a Compacted Scaly Clay....Pages 55-62
Hydric Model of Unsaturated Soils....Pages 63-68
Evaluation of Various Soil-Water Characteristic Curve Models for Soils from Greece....Pages 69-76
Swelling Characteristics of Sand-Bentonite Mixtures....Pages 77-84
Elastic or Elasto-Plastic: Examination of Certain Strain Increments in the Barcelona Basic Model....Pages 85-91
A New Procedure for Determining Parameter Values in the Barcelona Basic Model....Pages 93-102
A Refined Approach to Barcelona Basic Model Using the Apparent Tensile Strength Concept....Pages 103-110
Modelling Volume Change Behaviour for Unsaturated Soils in the Stress–Saturation Space....Pages 111-118
Modelling Compacted Soil Behaviour Including Microstructural Features....Pages 119-127
Influence of Anisotropy on Yielding and Critical States of an Unsaturated Soil....Pages 129-136
Prediction of the Behavior of Loess with the Extended MRS-Lade Model....Pages 137-142
On Elastoplastic Damage Modelling in Unsaturated Geomaterials....Pages 143-149
Unsaturated Resilient Behavior of a Natural Compacted Sand....Pages 151-157
Mechanical Modeling of Frozen Soils Incorporating the Effect of Cryogenic Suction and Temperature....Pages 159-164
Front Matter....Pages 165-165
Non Monotonic Imbibition Profiles and Transition to a Perched Water Table in a Gradually Layered Soil....Pages 167-174
Hydro-Mechanical Modelling of the Development of Preferential Gas Pathways in Claystone....Pages 175-180
Simulations of Static Compaction with Soil/Water/Air Coupled F.E. Analysis....Pages 181-187
Finite Element Simulation of Strain Localization in Unsaturated Soils....Pages 189-195
Reliability Assessment of Unsaturated Soil Shear Strength Using the Jointly Distributed Random Variables Method....Pages 197-205
Elaboration of a High-Dimensional Database of Unsaturated Soils Using Artificial Neural Networks....Pages 207-214
Unsaturated Hydraulic Conductivity of a Silty Sand with the Instantaneous Profile Method....Pages 215-220
A Physical Model to Investigate the Influence of Atmospheric Variables on Soil Suction in Pyroclastic Soils....Pages 221-227
Artificial Weathering and Drying of Compacted Cohesive Fill in a Large-Scale Environmental Chamber....Pages 229-236
Effects of Grass Transpiration on Suction Induced in Near-Saturated Soil Condition....Pages 237-242
Front Matter....Pages 243-244
Effect of Partial Saturation on the Stability of Shallow Foundations above the Water Table....Pages 247-253
Estimation of the Shaft Capacity of Single Piles Using the Conventional and Modified β Method....Pages 255-262
Effect of Partial Saturation on the Stability of Retaining Diaphragms above the Water Table....Pages 263-268
Retaining Structure-Unsaturated Soil Interaction....Pages 269-274
Influence of Suction on the Behaviour of Retaining Walls in the City of Naples, Italy....Pages 275-282
Unsaturated Hydraulic Properties of Fine Particles of Fouled Ballast Layer from an Ancient Railway Track Beds....Pages 283-289
Settlement Prediction of High Speed Railway Embankments Considering the Accumulation of Wetting and Drying Cycles....Pages 291-298
Influence of Partial Saturation on the Compressibility of Foundation Soils: A Case Study....Pages 299-306
Numerical Study of Canal Lining Behavior in Expansive Soils....Pages 307-315
3-D Modeling of Soil’s Unsaturated Depth Using Artificial Neural Network (Case Study of Babol)....Pages 317-324
Front Matter....Pages 243-244
Hydro and Hydro-Mechanical Modelling of Ventilation Test in Clayey Rocks....Pages 325-332
Numerical Modeling of the In Situ "Praclay Seal Test". Comparison between Model and Measurement....Pages 333-341
The Effects of Hydraulic Properties of Bedrock on the Stability of Slopes....Pages 343-349
Effects of Plant Transpiration on Suction Distribution in a Vegetated Soil Slope....Pages 351-357
Seasonal Effects in the Groundwater Regime of Unsaturated Slopes....Pages 359-365
Suction Fluctuations in Unsaturated Slopes: Evidences from Two Test Sites in Southern Italy....Pages 367-375
Stability of Highly Overconsolidated Soil Slopes....Pages 377-382
Front Matter....Pages 383-383
Adsorption of Heavy Metals onto Bentonites Used as Buffer/Backfilling Materials....Pages 385-391
The Chemical Analysis of Soils for Identification of Dispersivity....Pages 393-399
Predicting Relative Permeability of LNAPL Based on Fractal Geometry....Pages 401-408
Water Retention Curve and Shrinkage of Sludge from a Leachate Treatment Plant....Pages 409-414
Wettability Assessment of an Oil Coated Soil....Pages 415-421
Hydraulic Behaviour of a Waste from the Fertilizer Industry and of Mixtures of This Material with a Tropical Soil....Pages 423-429
The Roles of Solute Suction and Surface Tension in the Strength of Unsaturated Soil....Pages 431-437
Hydro-Mechanical Behavior of Compacted Kaolin Considering Percolating Fluids with Different Chemical Nature....Pages 439-446
Design and Construction of Large Lysimeters for Monitoring Unsaturated Transport of Contaminants....Pages 447-453
Back Matter....Pages 0--1

✦ Subjects

Renewable and Green Energy