Unsaturated soil
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Recent papers in Unsaturated soil
Considerably long periods of time are required to measure soil-water characteristic curves using conventional equipment such as pressure plate apparatus or a Tempe cell. A commercially available, small-scale medical centrifuge with a... more
Leaking underground storage tanks are a worldwide problem nowadays, therefore gasoline degradation and distribution in the subsurface have been widely studied. Brazil is the only country to currently use ethanol as fuel and as an... more
The Intergovernmental Panel on Climate Change (IPCC) provides convincing evidence of global warming as a result of increased greenhouse gas production. There has been a greater occurrence of extreme climate events in recent decades. We... more
Physicochemical analyses were carried out on soil samples from four different waste dumpsites in the Federal University of Technology Akure (FUTA), Nigeria to ascertain the effects of the refuse dumpsites on soil and groundwater... more
... Lourenco, SDN, Gallipoli, D. , Toll, DG, and Evans, F. (2006) Use of Tensiometers for the Measurement of Soil Suction. In: 10th Confresso Nacional de Geotecnia, 22 - 26 May 2006, Lisboa, Portugal. ... Authors: Lourenco, SDN,... more
THIS IS NATURE SIGNALING THE END OF DUALITY THIS IS HUGE - CHANGE THE ENTIRETY OF CREATION - NO DUALITY ANYWHERE. IT IS VERY CLEARLY A PREDETERMINED ADVANCEMENT OF HUMAN CONSCIOUSNESS - THIS BUBBLE IS TOO WELL DESIGNED - EUPHORIA... more
Au cours des dernières décennies, un intérêt croissant est porté à la terre crue en tant qu'éco matériau de construction pour son caractère local, sa capacité à réguler l'hygrométrie des espaces intérieurs et la faible consommation... more
The water movements in the unsaturated zone, together with the water holding capacity of this zone, are very important for the water demand of the vegetation, as well as for the recharge of the groundwater storage. A fair description of... more
The soils of Jinka in Southern Ethiopia were studied based on the detail works on soil pit description, characterizing and classification following the FAO and USDA guidelines. For this, along with the topo-sequence and landscape, six... more
Composite geotextiles with polyester yarn reinforcement have been commonly used in combination with unsaturated soils. Both unsaturated and saturated shear strength of the interfaces were investigated between a composite geotextile and... more
“Raw earth” (“terre crue” in French) is an ancient building material consisting of a mixture of moist clay and sand which is compacted to a more or less high density depending on the chosen building technique. A raw earth structure could... more
The paper gives a brief description of double wall cell triaxial equipment for testing soil samples under unsaturated conditions and presents results of some of the calibrations necessary to achieve accurate measurements of inner cell... more
Determinations of unsaturated soil parameters using experimental procedures are time consuming and difficult. In recent years, the soil–water characteristic curve (SWCC) has become an important tool in the interpretation of the... more
Au cours des dernières décennies, un intérêt croissant est porté à la terre crue en tant qu'éco-matériau de construction pour son caractère local et la faible consommation d’énergie qui caractérise son cycle de vie global. Toutefois, sa... more
The current research has investigated the soil quality status under dryland vegetation of Yabello district, Southern Ethiopia in which we should identify the nature and extent of salinity problem of the area for further research bases.... more
Cracks along asphaltic-concrete shoulder of highways are one of the most common infrastructure damages found in the central part of Thailand where sedimentary soils of high plasticity were widely deposited and sometimes used as subgrade... more
Mounding often occurs beneath engineering structures designed to infiltrate reuse water. AQTESOLV software and a spreadsheet solution for Hantush, together with soil moisture water balance (SWAGMAN farm model), were used for... more
The water retention behaviour of soils is an essential aspect of understanding the unsaturated behaviour of soil materials. This paper looks at a relatively new method of measurement for soil water reten-tion curves, using high capacity... more
Theoretical procedures are presented in this paper to interpret the undrained shear strength of unsaturated soils in terms of two stress state variables, net normal stress, (σ - ua) and matric suction, (ua - uw). The proposed theory is... more
The importance of unsaturated soil mechanics stems from the fact that the majority of geotechnical engineering projects are taking place in unsaturated soil zones. Soil suction, especially matric suction, is controlling the unsaturated... more