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Wyszukujesz frazę "Anthropogenic" wg kryterium: Temat


Wyświetlanie 1-12 z 12
Tytuł:
Anthropogenic sediments from facultative lagoons of the Konstancin - Jeziorna sewage treatment facility and their usability for soil recultivation
Autorzy:
Kostrz-Sikora, P.
Bojakowska, I.
Wołkiewicz, S.
Dobek, P.
Lech, D.
Narkiewicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/184200.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
anthropogenic soils
heavy metals
revitalization
Opis:
The sewage treatment facility of a paper mill at Konstancin-Jeziorna was opened to process industrial and domestic wastewater. After closure of that mill, the sewage treatment facility had to be rebuilt and modernized. Therefore, it was necessary to analyse the chemical and phase composition of the sediments from facultative lagoons used for biological treatment of wastewater. Eight samples of sediments were taken to identify a general phase composition by X-ray diffraction and ten to determine concentrations of selected main and trace elements with the use of ICP-AES and AMA methods.The analyses showed that the sediments consisted of over 90% of mineral fraction, mainly kaolinite, calcite, and quartz and also neomorphic smithsonite. They contained low quantities of Hg, Cd, Co and Mo, and elevated concentrations of Zn, Ba, Mn and Sr. Comparisons of the obtained mean values with admissible concentrations of metals, as defined by Regulation of the Minister of Environment of 9 September 2002, showed that the mean concentrations of As, Sn, Co, Mo and Ni (and also of Hg and Cr in the southern lagoon) met quality standards for soils in areas under protection (group A). Mean concentrations of Pb (both lagoons), Ba, Cu, Cd (northern lagoon) as well as Cr and Hg (southern lagoon) in sediments are higher. However, they still meet standards for areas usable for agricultural and other purposes (group B). The highest concentrations were recorded for Zn, Cd, Cu and Ba in samples from the southern lagoon. These continued to be lower than all the limits acceptable for industrial areas.
Źródło:
Geology, Geophysics and Environment; 2015, 41, 2; 177-185
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka i klasyfikacja gruntów antropogenicznych
Autorzy:
Drągowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/2074822.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
grunty antropogeniczne
utylizacja
anthropogenic soils
utilization
Opis:
Based on experience in the study of soils formed under anthropogenic influence, literature data and norms, the author defines the term anthropogenic soils, sub-divides them into three main groups depending on the conditions of their formation, chemical and physical properties, pressure on the natural environment and possibilities of further utilization. The present version of the sub-division if anthropogenic soils correlates well with the most recent norm PN-EN ISO 14688-1 and in addition, allows a more detailed classification taking into account the specific properties of soils assigned to particular groups.
Źródło:
Przegląd Geologiczny; 2010, 58, 9/2; 868-872
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Behaviour of anthropogenic soils subjected to vibration loadings
Zachowanie się gruntów antropogenicznych poddanych obciążeniom wibracyjnym
Autorzy:
Kaczyński, R.
Barański, M.
Powiązania:
https://bibliotekanauki.pl/articles/281183.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
anthropogenic soils
vibration
strength
labolatory test
Opis:
The paper presents the results of experimental investigations into the influence of dynamic loadings on the shear strenght in two chosen soils: coal ash and dump soil. The autors suggest description of the change of shear strength due to dynamic loading in terms of the Wz ratio. It shows a quantitative change of strength due to vibrations related to the initial value of strength. The functional relations have been established between the Wz ratio and frequency of the dynamic loading. The autors indicate that the tested soils respond more intensively to vibrations in the horizontal plane, as well as to distinct quantitative and qualitative changes in the soil microstructure.
W pracy zostały przedstawione wyniki badań labolatoryjnych wpływu obciążeń dynamicznych typu wibracji na wytrzymałość na ścinanie dwóch wybranych gruntów antropogenicznych: popiołu węglowego i gruntu zwałowego. Zmianę wytrzymałości na ścinanie wskutek działania drgań proponuje się określać za pomocą wskaźnika Wz. Przedstawia on ilościową zmianę wytrzymałości pod wpływem drgań w stosunku do pierwotnej wytrzymałości. Ustalono zależności funkcyjne pomiędzy wskaźnikiem Wz a prędkością obciążeń dynamicznych. Przedstawiono, że badane grunty jakościowe i ilościowe mikrostruktury gruntów poddanych obciążeniom dynamicznym.
Źródło:
Journal of Theoretical and Applied Mechanics; 1998, 2; 241-247
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Low-strength substrates and anthropogenic soils in transportation engineering
Autorzy:
Batog, A.
Stilger-Szydło, E.
Powiązania:
https://bibliotekanauki.pl/articles/178591.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
transport engineering
road embankments
soft soils
anthropogenic soils
Opis:
Road embankments, especially their slopes’ surfaces, must fulfil all the requirements concerning the exploitation criteria after the completion of construction works. This is very important while constructing or modernizing the embankments, based on the substrate including low-strength soils as well as in simple ground conditions (most convenient). The last dozen or so years of intensive construction of transport infrastructure have shown how big is the problem of ensuring the required volumes of qualified soil material for the construction of road embankments or the modernization of railway embankments. The depleting deposits of natural and easily accessible soils for the construction of embankments result in the need to use anthropogenic soils, for example, in the form of aggregates from the recycling of construction waste and other locally available waste materials, usually in the form of slag and ashes from the combined heat and power plants. In such cases, there’s a need to treat transportation earth structures individually in the scope of designing and quality control, because there are no applicable standard provisions in this scope. This work indicates some of these important contemporary problems of transport engineering, occurring in newly built and modernized road objects, such as the stability of road embankments based on a low-strength substrate, use of anthropogenic soils and materials originating from the recycling of concrete surfaces for the construction of road embankments.
Źródło:
Studia Geotechnica et Mechanica; 2018, 40, 4; 292-299
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grunty antropogeniczne w dokumentowaniu warunków geologiczno-inżynierskich dla budowli drogowych – wybrane problemy
Anthropogenic soils in documenting geological-engineering conditions for road building-selected problems
Autorzy:
Cabalski, K.
Radzikowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2074824.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
grunty antropogeniczne
inwestycje liniowe
anthropogenic soils
linear investments
Opis:
The article presents some of the problems related to the practice of documenting anthropogenic soils, focusing primarily on linear investments such as roads. It discusses the rank of anthropogenic soils in soils classification as in PN-86/B-02480: Building soils. Definition, symbols, and description of the soils classification and it elaborates on the difficulties in distinguishing anthropogenic from indigenous soils. Using the example, inter alia, of Trasa Armii Krajowej in Warsaw, the Authors present problems associated with construction on anthropogenic soils, including those soils with great thickness, and illustrate problems with assessment of the condition of old berms, predominantly consisting of ashes. In addition, the article demonstrates that the study of anthropogenic soil construction should be comprehensive and should entail indigenous soils in the immediate vicinity of the site.
Źródło:
Przegląd Geologiczny; 2010, 58, 9/2; 886-891
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laboratory investigations of compressibility of coarse-grained coal-mining wastes
Autorzy:
Dzierwa, K.
Zawisza, E.
Powiązania:
https://bibliotekanauki.pl/articles/241138.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
anthropogenic soils
colliery spoils
compressibility
middle-size oedometer tests
Opis:
Coal-mining wastes are used for engineering purposes mainly as a building material for hydraulic and road embankments, as well as land levelling. Determination of compressibility and shear strength parameters is indispensable to determine the usefulness of coal-mining wastes for the above mentioned purposes. Due to the coarse-grained character of minestone, testing their geotechnical parameters should be conducted in situ (test loads) or in the laboratory in medium and large-size apparatus. The paper presents results of compressibility tests on unburnt coal-mining waste from Anna mine in the Upper Silesian Region. They were carried out in a prototypical medium-size oedometer (h = d = 374 mm), constructed in the Geotechnical Laboratory of the Department of Soil Mechanics and Earth Structures, Agricultural University of Kraków. The tests aimed at the determination of the influence of compaction and saturation of coal-mining wastes on the process of their consolidation, as well as on the magnitudes of settlement and compression moduli. Initial moisture content of the samples (close to the optimum one) was constant and compaction index changed (from IS = 0.88 to IS = 1.00); some samples were saturated prior to the loading. As a result of the tests, it was found that the slightly compacted wastes (IS = 0.90) are significantly susceptible to saturation, whereas more compacted wastes (IS = 0.95 and 1.00) are insignificantly susceptible to it. High compaction of coal-mining wastes has significant influence on the more even course of consolidation process and decrease of settlement. It is essential in case of using wastes for construction of embankments, especially those which are subject to the influence of water, for example embankments of ash ponds or flotation slurries. In that case the wastes should be compacted to the maximum extent at the optimum moisture content.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2007, 54, 1; 37-54
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
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:
Ettringite as a factor causing structural strengthening of fluvial sand from the Praski terrace (Warsaw, Poland)
Autorzy:
Zawrzykraj, Piotr
Rydelek, Paweł
Bąkowska, Anna
Cabalski, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/24024701.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
Praski terrace
anthropogenic soils
ettringite
cementation
contamination
Taras Praski
gleby antropogeniczne
etryngit
cementowanie
zanieczyszczenia
Opis:
Engineering activity may lead to uncontrolled changes in the geological environment. This paper presents an example of structural changes in fluvial sand of the Praski terrace (in Warsaw) caused by the activity of a temporary concrete batching plant. Our investigations made it possible to identify the material responsible for the structural anomalies observed in the bottom of the trench excavation. The compound responsible for the cementation phenomenon was identified as ettringite – hydrated calcium aluminosulphate: Ca6Al2[(OH)12(SO4)3]·26H2O. The source of ettringite were most probably significant volumes of contaminants coming from the temporary concrete batching plant (e.g., from the rinsing of concrete mixers and/or installations for concrete storage and transportation). While penetrating into the ground, ettringite caused extensive cementation of the soil mass, mainly in the saturation zone. As a result, the mineral (chemical) composition of the inter-grain space changed and the structure of the sand was strengthened. The estimated zone of volumetric changes in soil properties was about 6 thousand m3. However, analysis of the chemical composition of groundwater for its potential sulphate contamination, did not reveal any anomalous concentrations of sulphates.
Źródło:
Acta Geologica Polonica; 2022, 72, 4; 519--528
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena chemizmu gleb powstałych na bazie popiołów z węgla kamiennego po dziesięciu latach ich funkcjonowania w środowisku
The assesment of chemical properties of soils made on base of ashes from hard coal after ten years of their functioning in environment
Autorzy:
Tomaszewicz, T.
Chudecka, J.
Powiązania:
https://bibliotekanauki.pl/articles/372553.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
popioły węgla kamiennego
rekultywacja
gleby antropogeniczne
właściwości chemiczne
ashes hard coal
reclamation
anthropogenic soils
chemical properties
Opis:
Celem pracy była ocena chemizmu 10-letnich gleb powstałych przez złożenie na popiołach z węgla kamiennego 5 wariantów nakładów zawierających substancję organiczną naturalnego i antropogenicznego pochodzenia. Gleby te charakteryzował odczyn zasadowy, niewielkie zasolenie, bardzo wysoka zasobność w przyswajalny fosfor, wysoka w przyswajalny mangan, cynk i miedź oraz średnia w przyswajalny magnez. Zawartość ogólna Zn, Cu, Cd, Pb i Ni nie przekraczała wartości dopuszczonych prawem, jednak wystąpiły przypadki podwyższonych ilości cynku, miedzi i ołowiu oraz powszechnie występujące słabe zanieczyszczenie kadmem.
The aim of study was to evaluate chemical properties of 10-year-old soils made by submission on ashes from hard coal 5 variants of surface layer including organic matter of natural and anthropogenic origin. These soils were characterized by alkaline reaction, low salinity, very high abundance of available phosphorus, high abundance of available manganese, zinc, copper and average abundance of available magnesium. The total content of Zn, Cu, Cd, Pb, and Ni was less than admitted by law, however reported cases of elevated amounts of zinc, copper and lead and widespread existing poor contamination of cadmium.
Źródło:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski; 2016, 163 (43); 74-85
1895-7323
Pojawia się w:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka zmian deformacyjnych gruntów antropogenicznych z osadników cukrowni
Characterization of deformation changes in anthropogenic soil from the wet dumps of sugar factories
Autorzy:
Choma-Moryl, K.
Powiązania:
https://bibliotekanauki.pl/articles/2074825.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
grunty antropogeniczne
osadniki
moduł ściśliwości pierwotnej
odkształcenie pęcznienia
skurcz liniowy
anthropogenic soils
wet dumps
swelling strain
shrinkage limit
Opis:
Sewer sludge that fills four wet dumps of the closed Małoszyn Sugar Factory in Malczyce near Środa Śląska, Lower Silesia constitutes a very specific anthropogenic soil. It is composed of grains and mineral particles transported in suspension after sugar beets pre-processing treatment. Presently the wet dumps are to be recultivated to meet the requirements of environmental protection. According to the recultivation project the wet dumps will be backfilled with suitable waste material and covered with sand and soil to stimulate soil forming processes. Finally grass, clover and shrubs will be introduced. The recultivation layer thickness will reach 3-6 m. Anthropogenic soil that fills the wet dumps is up to 2-3 m thick. The grain-size distribution is generally consistent with silty loam, silty clay loam and silty clay. Quartz, illite and chlorite dominate the mineral composition. The wet dump's bottom is formed by clays of the Poznań Formation, practically impermeable. Silt-dominated soils deposited in a water environment are highly susceptible to deformations caused by water and overload. Deformation behaviour was studied for the soil in a semi-solid state as well as in a soft-plastic state. Varying influence of water results, among others, in shrinkage (Ls) and swelling of the soils, characterized in the present study by swelling strain (p). Load-induced deformation of the soils is described basing on the modulus of primary compressibility. Basing on the results obtained it may be stated that the investigated anthropogenic soil undergoes moderate deformations under the influence of water. The swelling strain does not exceed 0.5-1.2% for the soil in a soft-plastic state and amount to 3.1-4.3% in a semi-solid state. The soil shrinkage limit varies between 3 and 5%. On the other hand load-induced deformations will be of remarkably higher importance. The soil in a soft-plastic state shows high shrinkage that is comparable with the one for organic soils. The modulus of primary compressibility is 282.3-925.9 kPa. The compressibility is markedly lower for a semi-solid state (MO =1 190.5-2 000 kPa). Characteristically, in both soft-plastic and semi-solid states the soil shows higher compressibility for lower load values 0-50 kPa than for the higher range 0-200 kPa. These compressibility values should be taken into account during backfilling of the wet dumps with various safe waste materials at recultivation. The load-induced pressure, initially low, will increase with adding consecutive layers. Thus highest soil deformations should be expected during the initial backfilling stages and their intensity may be estimated using the modulus of primary compressibility.
Źródło:
Przegląd Geologiczny; 2010, 58, 9/2; 892-897
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ warunków geologiczno-inżynierskich na zachowanie zabytków architektury centralnej części Lwowa
The influence of engineering-geological conditions on monuments’ maintenance in the central part of Lviv
Autorzy:
Wołoszyn, P.
Powiązania:
https://bibliotekanauki.pl/articles/2063097.pdf
Data publikacji:
2011
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
warunki geologiczno-inżynierskie
obiekt zabytkowy
grunty antropogeniczne
procesy morfodynamiczne
sufozja
engineering-geological conditions
anthropogenic soils
morphodynamical process
mechanical suffosion
Opis:
Na przykładzie Lwowa przedstawiono wpływ właściwości geologiczno-inżynierskich gruntów na zachowanie trwałości wybranych obiektów zabytkowych. Głównymi czynnikami obniżającymi trwałość fundamentów są: występowanie słabego podłoża, niekorzystne warunki hydrogeologiczne, deformacje filtracyjne oraz podtopienia. Pogorszenie stanu budynków jest spowodowane zastosowaniem drewnianych fundamentów, niekorzystnym wpływem obciążeń dynamicznych, wywołanych znacznym ruchem samochodowym, oraz podtopieniami obiektów w wyniku nieszczelności kanalizacji i wodociągów.
The influence of engineering-geological conditions on monuments’ stability is discussed in this article. The main factors which weaken the buildings’ foundations are weak rocks, hydrogeological conditions, mechanical suffosion and flooding. The condition of buildings is getting worse because of the usage of wooden elements instead of more durable ones, by vibrations produced by considerable car traffic and by leakages from sewage systems and waterworks.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2011, 446 (1); 157--162
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problematyka gruntów antropogenicznych w kartografii geologiczno-inżynierskiej
Aspects of anthropogenic soils in engineering-geological cartography
Autorzy:
Frankowski, Z.
Majer, E.
Majer, K.
Powiązania:
https://bibliotekanauki.pl/articles/2074818.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
grunty antropogeniczne
kartografia geologiczno-inżynierska
mapa ryzyka inwestycji
plan zagospodarowania przestrzennego
anthropogenic soils
engineering geology cartography
risk map of investment
land development plan
Opis:
The article presents some cartographic studies of urban aras where anthropogenic soils occur. Methods of presenting the anthropogenic soils on maps were described, including the forms of their occurrence and thickness. It was indicated that an engineering geological map providing information on soil usefulness (illustrating the recommended ways of economic planning) and a risk map of investment showing a good preparation of a land development plan should be created.
Źródło:
Przegląd Geologiczny; 2010, 58, 9/2; 918-925
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-12 z 12

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