Browsing by Subject "soil compressibility"

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Access status: Open Access ,
Charakterystyka ściśliwości gruntu pylastego, na przykładzie lessu z rejonu Wrocławia
(Wydawnictwa AGH, 2009) Stróżyk, Joanna
The results of laboratory examinations, of silty soil compressibility were presented. The soil sample have been taken from Wrocław area. Silty soil are creating a number of problems in geoengineering. The soil structure is characterized by a great sensitivity to changes water content what causes fast changes of engineering properties caused among others with change of the state from the unsaturated to saturated. In the paper a silty soil structure sensitivity was examined for the water content changes. The assessment were done by comparing of the oedometer curve get from test of soil about the natural structure, at first saturated as well as unsaturated with water, with oedometer curve gets from soil sample about the structure prepared in laboratory.
Access status: Open Access ,
Ciśnienia prekonsolidowania - wykorzystanie w praktyce inżynierskiej
(Wydawnictwa AGH, 2009) Suchnicka, Hanna Barbara
In the opinion of some scientists and engineers the knowledge of the preconsolidation pressure [formula] is a requisite for the evaluation of subsoil subsidence. The aim of the present paper is to demonstrate that such knowledge is not required in every instance. The problem is discussed taking as examples several compressibility curves for soils exhibiting different types of overconsolidation (due to unloading or aging, or of a structural nature) which is related to the stress value. It seems worth remembering that the compressibility of normally consolidated soils decreases when stresses increase. This means that the stress interval where the relations ([formula]) are linear becomes wider.