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Wyszukujesz frazę "Kowalczyk, S" wg kryterium: Autor


Wyświetlanie 1-8 z 8
Tytuł:
Ocena doświadczalnych rozkładów ciśnienia porowego w badaniach konsolidometrycznych typu CL
The assessment of pore pressure experimental distributions during continuous loading (CL) consolidation tests
Autorzy:
Kowalczyk, S.
Powiązania:
https://bibliotekanauki.pl/articles/2074386.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
konsolidacja gruntów
ciśnienie wody w porach
parametr ciśnienia porowego
consolidation
CL consolidation test
variability of pore water pressure
parameter C_CL
Opis:
The pore pressure variations that were obtained during CL consolidation tests are discussed in this paper. The comparative analysis was made on the base of observed changes to confront information on experimen-tal soil behavior with theoretical solutions of the primary (filtration) consolidation process. On the basis of obtained experimental data, the factors resulting in the incompatibility with the theoretical models, were identified and discussed in this paper. This incompatibility results from degree of saturation, conditions of dispersion of pore water pressure and load rate path.
Źródło:
Przegląd Geologiczny; 2005, 53, 2; 162-167
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena właściwości izolacyjnych iłów beidellitowych z KWB "Bełchatów" metodą badań konsolidacji
Evaluation of beidellite clay insulation properties from brown coal mine "Bełchatów" by using consolidation tests.Evaluation of beidellite clay insulation properties from brown coal mine "Bełchatów" by using consolidation tests
Autorzy:
Kowalczyk, S.
Powiązania:
https://bibliotekanauki.pl/articles/2074365.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
iły beidellitowe
właściwości izolacyjne
przepuszczalność
grunt spoisty
badania konsolidacyjne
coefficient of permeability
permeability
consolidation
beidellite clay
Opis:
Beidellite clay from brown coal mine "Bełchatów" is a potential material for use in insulation geo-barriers. The characteristic feature of this type of soils is its significant variability, which requires testing of permeability parameters before application as an insulation geo-layer. Coefficient of permeability of cohesive soils can be effective define on the basis of consolidation tests, which are carried out at a constant rate of loading (CL) with a simultaneous measurement of a pore water pressure. Obtained results allow specifying permeability changes related to decreasing soil porosity. Permeability analysis of green clay samples, which were taken in the area of Kleszczow Trough, is presented in this paper. Tests were carried out on natural structured samples (NNS) and prepared soil pastes. Impact of structural factors and soil saturation on obtained permeability coefficient profiles is shown and discussed in this paper on the basis of obtained consolidation test results.
Źródło:
Przegląd Geologiczny; 2005, 53, 9; 776-780
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zachowania konsolidacyjne past gruntowych jako potencjalnego materiału izolacyjnego
Consolidation behavior of soil paste applied as an potential insulating material
Autorzy:
Dobak, P.
Kowalczyk, S.
Powiązania:
https://bibliotekanauki.pl/articles/2074812.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
glinka zielona
Bełchatów
przepuszczalność gruntu spoistego
bariery izolacyjne gleby
Neogene green clay
permeability of cohesive soil
insulating soil barriers
Opis:
The paper presents the application of consolidation tests for coefficient permeability evaluation in cohesive soils. The insulating property of Neogene green clays from overburden of Bełchatów lignite mine are subject to study. These soils are potentially fine material to construct barriers for insulating of contaminations. The results of paste samples tests are compared with behavior of non disturbed structure. The difference of natural and artificial formed structure affect on physical properties and permeability behavior too. The continuous loading consolidation tests let to obtain effective seepage of pore water in short time but head gradient is higher than in natural conditions. It caused contraction effects and may decrease the permeability, when pore water pressure is not dissipate. The consolidation stress and pore water pressure is mainly factor of tests results variability. Differences between permeability of samples formed from paste and natural structure samples may depend on mineral composition and compaction of paste. Consolidation tests let quickly evaluate permeability of cohesive soil with respect for the different factors considered in optional barriers designs.
Źródło:
Przegląd Geologiczny; 2010, 58, 9/2; 903-911
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geologia obszarów miejskich : przykłady z aglomeracji warszawskiej
Urban geology : a case study of Warsaw agglomeration
Autorzy:
Radzikowski, M.
Cabalski, K.
Kowalczyk, S.
Powiązania:
https://bibliotekanauki.pl/articles/2075714.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
geologia miejska
badanie geologiczno-inżynierskie
gleby antropogeniczne
urban geology
geological-engineering investigation
anthropogenic soils
Opis:
The article presents the attempt to systematize the problems of urban geology using the example of Warsaw agglomeration. The introduction discusses the available literature, both domestic and foreign. It was noted that many authors understand this concept in various ways, defining it differently. This is the result of diverse interests of researchers, whose common point is that their works and research were located in or associated with urban areas. It also presents, in general, the range of subjects and the set of tools related to Earth sciences, which help in solving research tasks. The article makes reference to the constraints associated with availability of the land and problems related to the applicability of methods. It presents the thesis stating that the needs of users of geoinformation in the urban environment are different from the current ones, which were mainly focused on natural resources, rather than on interaction or coexistence of natural resources and development. The recipients of geoinformation in the urban environment, in relation to the presented conceptual scheme, are mainly people or institutions that do not have an appropriate knowledge of geology. Hence, it is necessary to present geoinformation in a clear and accessible manner, as conclusions or guidelines for use. The examples presented in the article prove that geology of urban areas is now becoming a very important part of knowledge necessary for proper, sustainable development of our cities. Over the last few years a significant part of the population moved to urban areas. This trend is noticeable in Poland and around the world.
Źródło:
Przegląd Geologiczny; 2017, 65, 10/2; 883--889
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena stateczności wybranych fragmentów skarpy warszawskiej w świetle badań geofizycznych metodą tomografii elektrooporowej
The stability evaluation of Warsaw slope selected pieces based on Electrical Resistivity Tomography survey (ERT)
Autorzy:
Kowalczyk, S.
Mieszkowski, R.
Pacanowski, G.
Powiązania:
https://bibliotekanauki.pl/articles/2074252.pdf
Data publikacji:
2014
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
stateczność skarpy
skarpa warszawska
metoda tomografii elektrooporowej
ERT
slope stability
Warsaw Slope
electrical resistivity tomography
Opis:
In this paper there are presented application of Electrical Resistivity Tomography method (ERT) for the evaluation of slope stability on the example of four pieces of Warsaw slope. The survey was conducted on Bielany at Farysa street, downtown close to Academic Church St. Anne, on Ursynów at Kiedacza Street and at Kokosowa Street. Selected pieces of Warsaw slope differ between therself with soil-water conditions, geometry (a slope angle and height), an urbanized terrain and hazard of landslide. In this paper there are geological cross-section for selected slop pieces, the slop stability index was calculated (F) and ERT measurements. The purpose of this paper is presentation of the processing and interpretation of data received in ERT measurements for more exact description of slop stability.
Źródło:
Przegląd Geologiczny; 2014, 62, 10/2; 634--640
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Obraz falowy w miastach
Wave image in urban areas
Autorzy:
Krynicki, T.
Kowalczyk, S.
Mieszkowski, R.
Wojas, A.
Powiązania:
https://bibliotekanauki.pl/articles/2074776.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
sejsmika
fale powierzchniowe
pomiary fal
miasta
zagrożenia
seismics
surface waves
measurements of waves
cites
menace
Opis:
The paper presents analysis of factors influencing intensity of surface waves recorded in urban areas and methodology worked out for their measurement. Several examples of records of surface waves induced by different sources of vibrations are presented. The results of measurements show omnipresence of such waves. The wave record was executed using three-component geophones. The results of measurements show that induced vibrations may represent some hazard for buildings situated in distance up to 150 metres from their source.
Źródło:
Przegląd Geologiczny; 2010, 58, 5; 401-407
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie metody obrazowania elektrooporowego do rozpoznania podłoża Południowej Obwodnicy Warszawy
Application of electrical resistivity imaging to ground recognition of the Warsaw Southern Ring-Road
Autorzy:
Kowalczyk, S.
Cabalski, K.
Radzikowski, M.
Jędrzejewski, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075720.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
metoda obrazowania elektrooporowego
ERI
warunki glebowe
inwestycje drogowe
electrical resistivity imaging
complex soil conditions
road investment
Opis:
The article presents the usage of electrical resistivity imaging (ERI) in ground recognition for linear constructions such as the Warsaw Southern Ring-Road. Measurements were performed in a gradient array, on five segments of the route, with previously researched geological conditions. Measurement method intended to probe the soil matrix on different depths. Therefore, the electrode array was set to 2 to 5 meters. The resulting image of resistivity differed in resolution. Resistivity images were correlated with geological data from boreholes in geology-engineering documentation and other widely available geological information from databases and literature. This allowed to limit ambiguity of interpretation of two-dimensional model of near surface soil matrix resistivity. Thereby, individual ranges of resistivity were assigned to geological content. The measurements allowed to identify geological horizontal variability. Electrical resistivity imaging research confirmed its utility in the recognition of spatial distribution of geological media in foundation soil. The analysis of completed surveys allowed to designate the following areas: locations where anthropogenic and organic soils occur, probable location of the edge of the upland on the eastern side of Vistula River and upper relief of local Neogene clays.
Źródło:
Przegląd Geologiczny; 2017, 65, 10/2; 772--778
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
What Polish mining owes to Polish hydrogeology?
Autorzy:
Kowalczyk, A.
Witkowski, A.
Różkowski, A.
Szczepański, A.
Rogoż, M.
Przybyłek, J.
Staśko, S.
Powiązania:
https://bibliotekanauki.pl/articles/2066343.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
hydrologia
górnictwo
wody kopalniane
ryzyko
oddziaływanie na środowisko
likwidacja kopalń
hydrogeology
mining
mine water
mine water risk
environmental impact
mine closure
Opis:
Poland is endowed with the wealth of mineral resources, especially resources of coal and lignite, metal ores and mineral rawmaterials for chemical industry. Exploitation of these resources as a rule leads to inflow of water to mine workings and thus to various technical problems which have to be solved. Such problems arise at all the stages of management of mineral deposits, from reconnaissance and prospecting and exploration to preparing of a deposit for exploitation and exploitation and closing of mines. The water can have significant negative influence on prospecting and exploration and preparation of deposits to exploitation and creates a risk for mining operations and miners.Water inflow also results in environmental changes and increases extraction costs. The arising problems are technical and economic in character and the key for their solution is hydrogeology or, more precisely speaking, one of its more specialized branches - that is mining hydrogeology. The aim of this paper is to show the role and significance of hydrogeological works in management of mineral resources. A special attention is paid to the major achievements of Polish hydrology, which contributed to the developments in mining in our country and the world. Moreover, significance of contribution of hydrogeology at all the stages of mineral resources management, from reconnaissance and prospecting to exploitation of mineral deposits and closing of mines, is discussed. The presentation is of the review type and comprises examples of contributions of hydrogeology to exploration and documentation of individual mineral deposits, including assessments of mine water inflow and risks, environmental impact of mining operations and water management issues. It is worth to note that achievements of the mining hydrogeology from the last twenty years were mainly connected with working out methods for forecasting and assessments of environmental impact of closing the mines. In short, it may be stated that the actual contribution of Polish hydrogeology to the developments of mining sector is well shown by the presented examples concerning practically all the major mineral resources and the whole process of their management.
Źródło:
Przegląd Geologiczny; 2010, 58, 9/1; 774-786
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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