Temat: soils consolidation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The influence of mineralogical composition of soil on the consolidation coefficient value
Wpływ składu mineralnego gruntów na współczynnik konsolidacji
Autorzy:: Zabłocka, K.
Lendo-Siwicka, M.
Wrzesiński, G.
Powiązania:: https://bibliotekanauki.pl/articles/2083971.pdf
Data publikacji:: 2020
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:: consolidation
consolidation coefficient
clay mineralogy
cohesive soils
Opis:: This paper involves the results of oedometric tests carried out on four model samples with different content of expansive clay minerals, subjected to different stresses. The research aimed to determine the impact of consolidation pressure on the consolidation coefficient for cohesive soils with different mineral composition. Main factors influencing correlation between consolidation coefficient and consolidation pressure (Cv–p) trends turned out to be mechanisms controlling changes in soil volume (mechanical or physicochemical), which is different for expansive and non-expansive soils.
Źródło:: Acta Scientiarum Polonorum. Architectura; 2020, 19, 3; 83-90
1644-0633
Pojawia się w:: Acta Scientiarum Polonorum. Architectura
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Geotechnical parameters in description of soft soils consolidation
Autorzy:: Gabryś, K.
Powiązania:: https://bibliotekanauki.pl/articles/115649.pdf
Data publikacji:: 2010
Wydawca:: Fundacja na Rzecz Młodych Naukowców
Tematy:: organic soils
geotechnical parameters
consolidation
deformation process
Opis:: The construction of embankments on organic soils is associated with necessary to improve subsoil conditions. Soft organic soils are often highly compressible and have low shear strengths, what causes large deformation, both vertically as well as horizontally, that may occur during and after the construction period [11]. The settlements usually appear quickly but can also continue for a very long time because of the secondary compression [6]. However, in Poland there are large areas with soft organic soils where diff erent kinds of embankments have to be constructed. In these cases, the prediction of soil behavior and the selection of a proper design method becomes an important and complex engineering task. In this paper the analysis of the soft subsoil deformation process under load is presented. The main factors that determine the consolidation of soft subsoil are described, as well as the proposition of changes in organic soils properties for better prediction of the construction’s settlements. Based on fi eld observations and laboratory test results, the characterization of organic soft soils and the results the calculation procedure are proposed.
Źródło:: Challenges of Modern Technology; 2010, 1, 1; 61-64
2082-2863
2353-4419
Pojawia się w:: Challenges of Modern Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Evaluation of consolidation parameters in CL tests; theoretical and practical aspects
Autorzy:: Dobak, P.
Powiązania:: https://bibliotekanauki.pl/articles/2059088.pdf
Data publikacji:: 2008
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: consolidation
cohesive soils
continuous loading
pore water pressure
Opis:: The paper presents theoretical solutions of the consolidation problem with respect to the different conditions of continuous loading and its application. The author introduces modified consolidation parameters and dimensionless parameters characterizing the course of the consolidation process. Therefore it is possible to calculate the theoretical pore water pressure distribution for various loading procedures in continuous loading (CL) consolidation tests occurring in constant rate loading (CRL), constant rate of strain (CRS) or controlled gradient (CG) tests. The calculation results allow presentation of the attributes that differentate CL consolidation and classical incremental loading (IL) consolidation. A new method of calculation cv (coefficient of consolidation) is proposed using theoretical diagrams of porewater pressure distribution and results of laboratory measure ments during the CL test. A comparative analysis of the methods currently used for cv calculation and the new method is presented here. The cv values estimated by means of method referring only to the seepage factor of consolidation, are usually higher than those based on the strain course. Proper projection of the seep age factor of consolidation makes it possible to shorten the time of consolidation tests in accordance with results of many field observations. The methods described herein can be useful in studying physical conditions of sedimentation, glacial geology, early diagenetic process and applied geology.
Źródło:: Geological Quarterly; 2008, 52, 4; 397-397
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Evaluation of soil permeability from consolidation analysis based on Terzaghi’s and Biot’s theory
Autorzy:: Dobak, P.
Gaszyński, J.
Powiązania:: https://bibliotekanauki.pl/articles/2060271.pdf
Data publikacji:: 2015
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: consolidation
cohesive soils
Terzaghi’s theory
Biot’s theory
permeability
geological barriers
insulation properties
Opis:: Proper evaluation of permeability parameters has a crucial signification in multi-scale prediction of consolidation. Drainage path is connected with the time of one-dimensional consolidation in Terzaghi’s theory and numerous later solutions. That is why the evaluation of permeability factor allows to model the settlement’s time of geological layers based on results obtained on a laboratory scale. Numerous tests show a difference of the consolidation degree obtained from one-dimensional strain course and pore pressure distribution. Evaluation of consolidation coefficient cv based on a newly proposed method allows better understanding of the basic reasons of unconventional behaviour of tested soils. Unparallel characteristics of strain and pore pressure distribution show important role of soil’s skeleton creep and its relation to permeability aspects. Solutions proposed by Biot’s theory allow analysing the different velocity of strain and pore pressure distribution. The article presents a new approximated method based on Terzaghi’s theory and evaluation of parameters which are necessary in application of Biot’s one–dimensional solution. These parameters are connected with compressibility and coefficient of permeability. The goal of presented methodological studies is comparison between permeability obtained from application of Terzaghi’s and Biot’s theory. It allows trying to explain physical reasons of differences between applied models and testing results, and improving the methodology of one–dimensional consolidations tests.
Źródło:: Geological Quarterly; 2015, 59, 2; 373--381
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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