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Wyszukujesz frazę "Mlynarek, Z." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Use of functional cluster analysis of CPTU data for assessment of a subsoil rigidity
Autorzy:
Młynarek, Z.
Wierzbicki, J.
Wołyński, W.
Powiązania:
https://bibliotekanauki.pl/articles/178174.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
CPTU
cluster analysis
functional data
rigidity model
Opis:
This paper shows an example of the grouping of piezocone penetration test (CPTU) characteristics using functional data analysis, together with the results of clustering, in the form of a subsoil rigidity model. The subsoil rigidity model was constructed based on layer separation using the proposed method, as well as the k-means method. In the construction of the subsoil rigidity model, the constrained modulus M was applied. These moduli were determined from empirical relationships for overconsolidated and normally consolidated soils from Poland based on cone tip resistance.
Źródło:
Studia Geotechnica et Mechanica; 2018, 40, 2; 117-124
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geotechnical parameters of alluvial soils from in-situ tests
Autorzy:
Młynarek, Z.
Stefaniak, G.
Wierzbicki, J.
Powiązania:
https://bibliotekanauki.pl/articles/241228.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
silty soils parameters
strength
deformation
CPTU
SDMT
Opis:
The article concentrates on the identification of geotechnical parameters of alluvial soil represented by silts found near Poznań and Elbląg. Strength and deformation parameters of the subsoil tested were identified by the CPTU (static penetration) and SDMT (dilatometric) methods, as well as by the vane test (VT). Geotechnical parameters of the subsoil were analysed with a view to using the soil as an earth construction material and as a foundation for buildings constructed on the grounds tested. The article includes an analysis of the overconsolidation process of the soil tested and a formula for the identification of the overconsolidation ratio OCR. Equation 9 reflects the relation between the undrained shear strength and plasticity of the silts analyzed and the OCR value. The analysis resulted in the determination of the Nkt coefficient, which might be used to identify the undrained shear strength of both sediments tested. On the basis of a detailed analysis of changes in terms of the constrained oedometric modulus M0, the relations between the said modulus, the liquidity index and the OCR value were identified. Mayne’s formula (1995) was used to determine the M0 modulus from the CPTU test. The usefullness of the sediments found near Poznań as an earth construction material was analysed after their structure had been destroyed and compacted with a Proctor apparatus. In cases of samples characterised by different water content and soil particle density, the analysis of changes in terms of cohesion and the internal friction angle proved that these parameters are influenced by the soil phase composition (Fig. 18 and 19). On the basis of the tests, it was concluded that the most desirable shear strength parameters are achieved when the silt is compacted below the optimum water content.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2012, 59, 1-2; 63-81
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wybrane problemy uszkodzeń konstrukcji drogowej jako wynik niewłaściwego rozpoznania geologiczno-inżynierskiego
Failure of highway embankment as a result of inadequate subsoil identification.
Autorzy:
Kumor, Ł. A.
Kumor, M. K
Młynarek, Z.
Powiązania:
https://bibliotekanauki.pl/articles/2074271.pdf
Data publikacji:
2014
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
słabonośne podłoże dróg
grunty organiczne
rozpoznanie geotechniczne
uszkodzenia dróg
low-bearing road subgrade
organic soils
geotechnical diagnosis
road structure failure
Opis:
The paper presents problems connected with failure in a road section of an interchange, which geotechnical causes were manifested in the initial period of its operation. Genesis of the failure stems from the stage of investment preparation and construction. The failure was caused first of all by inadequate identification of geological and engineering conditions in the area of deposition of unconsolidated Holocene organic soils. As a result of failure damage occurred in the road embankment and in the subsoil. The paper presents an attempt at an explanation for the failure.
Źródło:
Przegląd Geologiczny; 2014, 62, 10/2; 641--644
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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