Borecka, Aleksandra
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inżynieria środowiska, górnictwo i energetyka
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Item type:Article, Access status: Open Access , Osiadanie gruntów zwałowanych w poeksploatacyjnym wyrobisku odkrywkowym w wyniku odbudowy zwierciadła wody gruntowej(Wydawnictwa AGH, 2008) Woźniak, Henryk; Borecka, Aleksandra ; Kaczmarczyk, RobertCommon remediation method of inactive open pits is a partial or complete infilling with dump soil derived from removed overburden. A problems which rises during such remediation is a significant settlement of soils caused by its high compressibility. Recognition of compressibility and settlement enables the proper design of both required and final depths of the fill and allows to balance the required and existing volumes of dumped material. Authors proposed a calculation method for settlement of dumped fill deposited in an inactive open pit, which includes self-weight settlement and collapse settlement caused by recovery of groundwater table. The proposed calculation is based upon solution given by Nwabuokei & Lovell (1985) for settlement of fills composed of compacted soil. Examples of calculations are presented in which both the compressibility and collapse potential parameters were determined from authors' own studies.Item type:Article, Access status: Open Access , ISMOP Project (IT System of Levee Monitoring) as an example of integrated monitoring of levee(Wydawnictwa AGH, 2015) Stanisz, Jacek; Korzec, Klaudia; Borecka, AleksandraThe technical condition of levees is decides on the safety of property and persons residing in the protected areas. Monitoring is an important issue.Item type:Article, Access status: Open Access , Smart levee in Poland. Full-scale monitoring experimental study of levees by different methods(Wydawnictwa AGH, 2017) Sekuła, Klaudia; Borecka, Aleksandra ; Kessler, Daniel; Majerski, PatrykThis paper presents two types of control and measurement networks used in the levee built as part of the ISMOP project. The first control and measurement network based on pore pressure and temperature sensors. Additionally, it contains the fiber-optic technology. The second network include design experimental sensors, constructed for the development of solutions that can be used in existing flood embankments.Item type:Article, Access status: Open Access , Characteristics of soil of »Józefka« deposit overlay, Kielce District(Wydawnictwa AGH, 2016) Pawlikowski, Maciej ; Manecki, Maciej; Kozień, Dawid; Waluś, Edyta; Borecka, Aleksandra ; Stanisz, Jacek; Pękala, Michał; Kiecana, MonikaThe aim of this article is to describe and characterize the properties of the overburden overlying rocks of »Józefka« mine, with an attempt to demonstrate a dependence of diversified mineral composition on geotechnical characteristics of the tested material.Item type:Article, Access status: Open Access , Czynniki wpływające na parametry wytrzymałości na ścinanie w strefach zagrożeń osuwiskowych na przykładzie odkrywek węgla brunatnego(Wydawnictwa AGH, 2008) Borecka, Aleksandra ; Kaczmarczyk, RobertThe recently observed development into possibilities of calculation programs for calculations of stability and numerous results of laboratory investigations help to obtain a more and more perfect simulation of rockmass behaviour. Nevertheless, a problem of landslides has not been fully solved as they still originate. The analysis of slope stability requires consideration of a number of factors connected with a degree of complexity of geological structure and parameters of soils. One of the most essential problems is still a choice of reliable calculating parameters, especially in the zones of complicated geological structure. In the paper factors influencing shear strength parameters in the zones of landslide threats have been discussed while basing on the results of investigations and observations in the brown coal mines »Turów« and »Bełchatów«. Mass movements of soils in open pit mines due to their exploitation, outcrop of slops, current monitoring and technical possibilities of mines help to observe in a relatively easy way certain phenomena accompanying the processes occurring on the surfaces of a landslides. There exists a possibility of applying some results for the evolution of slope stability also in the places where observations of phenomena occurring on the slide surfaces are considerably more complicated, e.g. in the Carpathian landslides.Item type:Article, Access status: Open Access , Integration of MASW and ERT methods for site characterisation: a case study from Czernichów (Southern Poland)(Wydawnictwa AGH, 2026) Cichostępski, Kamil; Bania, Grzegorz; Borecka, AleksandraThe paper presents an integrated use of multichannel analysis of surface waves (MASW) and electrical resistivity tomography (ERT) to characterise the physical properties of near-surface materials, identify subsurface structures, and estimate the depth to bedrock in a planned construction area near Czernichów, close to Krakow (southern Poland). The study shows that integrating MASW and ERT provides a cost-effective and complementary approach to subsurface characterisation, delivering more reliable and less ambiguous interpretations than when the methods are applied independently, thereby reducing the need for expensive and invasive in situ geotechnical investigations. Particular emphasis is also placed on the methodological aspects of both methods. The study site is located on an alluvial plain composed of alluvial soils, sands, sand–gravel mixtures, and silty clays overlying limestone bedrock. Geophysical data were collected along five profiles. The resulting shear wave velocity models and the inverse model resistivity sections show good agreement with borehole data. The study area is characterised by a wide range of physical parameters derived from both methods. The MASW survey enabled recognition of the subsurface down to the bedrock, revealing four seismic layers differing in S-wave velocity. Nevertheless, the MASW inversion did not provide reliable estimates of the limestone S-wave velocity, although it successfully delineated its depth and morphology. The ERT survey identified three geoelectrical layers and proved to be more effective in resolving shallow geological structure, particularly in identifying the boundaries between alluvial soils and sand–gravel mixtures, whereas the depth and morphology of the limestone bedrock were constrained primarily by MASW.Item type:Article, Access status: Open Access , Description and evaluation of the landslide hazard. A case study in a landslide in Radziszow(2012) Borecka, AleksandraW artykule przedstawiono wstępne wyniki badań jednego z 275 zarejestrowanych, a zarazem jednego z największych osuwisk zlokalizowanych w gminie Skawina, zajmującego powierzchnie prawie 100 ha, a znajdującego się w miejscowości Radziszów. Jest to stare osuwisko, które daje znać o sobie zwłaszcza w okresach długotrwałych i intensywnych opadów, o czym świadczą dosyć dobitnie charakterystyczne formy morfologiczne tj. spękania, garby, progi, spłaszczenia i zagłębienia, które niekiedy wypełnione są wodą. Obszar przekształcany przez procesy geodynamiczne stanowi znaczne zagrożenie dla ludności i zabudowy mieszkaniowo-zagrodowej - na terenie osuwiska zlokalizowanych jest ponad 30 budynków mieszkalnych i gospodarczych - widoczne spękania na budynkach i fundamentach, popękane nawierzchnie betonowe wokół budynków oraz uszkodzone ogrodzenia posesji i poprzekrzywiane słupy energetyczne. Dodatkowo rozwojowi osuwiska sprzyja budowa geologiczna. Osuwisko ze względu na swoją wielkość będzie bardzo trudne do ustabilizowania, w związku z tym brak jest możliwości stabilizacji całości osuwiska. Zastosowanie systemu monitoringu powierzchniowego i wgłębnego, pozwoli określić tempo i kierunki najintensywniejszych ruchów, zbadać dynamikę wgłębną osuwiska oraz stwierdzić wielkość i głębokość przemieszczeń. System będzie jednocześnie stanowił rodzaj alarmu dla ludności zamieszkującej teren osuwiska.