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Number of results: 4
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Abstract

Approximately 30 million tons of tailings are being stored each year at the KGHMs Zelazny Most Tailings Storage Facility (TSF). Covering an area of almost 1.6 thousand hectares, and being surrounded by dams of a total length of 14 km and height of over 70 m in some areas, makes it the largest reservoir of post-flotation tailings in Europe and the second-largest in the world. With approximately 2900 monitoring instruments and measuring points surrounding the facility, Zelazny Most is a subject of round-the-clock monitoring, which for safety and economic reasons is crucial not only for the immediate surroundings of the facility but for the entire region. The monitoring network can be divided into four main groups: (a) geotechnical, consisting mostly of inclinometers and VW pore pressure transducers, (b) hydrological with piezometers and water level gauges, (c) geodetic survey with laser and GPS measurements, as well as surface and in-depth benchmarks, (d) seismic network, consisting primarily of accelerometer stations. Separately a variety of different chemical analyses are conducted, in parallel with spigotting processes and relief wells monitorin. This leads to a large amount of data that is difficult to analyze with conventional methods. In this article, we discuss a machine learning-driven approach which should improve the quality of the monitoring and maintenance of such facilities. Overview of the main algorithms developed to determine the stability parameters or classification of tailings are presented. The concepts described in this article will be further developed in the IlluMINEation project (H2020).
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Authors and Affiliations

Wioletta Koperska
1
ORCID: ORCID
Maria Stachowiak
1
ORCID: ORCID
Natalia Duda-Mróz
1
ORCID: ORCID
Paweł Stefaniak
1
ORCID: ORCID
Bartosz Jachnik
1
ORCID: ORCID
Bartłomiej Bursa
2
ORCID: ORCID
Paweł Stefanek
3
ORCID: ORCID

  1. KGHM Cuprum Research and Development Centre, gen. W. Sikorskiego 2-8, 53-659 Wrocław, Poland
  2. GEOTEKO Serwis Ltd., ul. Wałbrzyska 14/16, 02-739 Warszawa, Poland
  3. KGHM Polska Miedz S.A., M. Skłodowskiej-Curie 48, 59-301 Lubin, Poland
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Abstract

To reliably calibrate suitable partial safety factors, useful for the specification of global condition describing structural safety level in considered design case, usually the evaluation of adequate failure probability is necessary. In accidental fire situation, not only probability of the collapse of load-bearing structure, but also another probability related to the people staying in a building at the moment of fire occurence should be assessed. Those values are different one from another in qualitative sense but they are coupled because they are determined by similar factors. The first one is the conditional probability with the condition that fire has already occured, whereas the second is the probability of failure in case of a potential fire, which can take place in the examined building compartment, but its ignition has not yet appeared. An engineering approach to estimate such both probabilities is presented and widely discussed in the article.

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Authors and Affiliations

M. Maślak
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Abstract

Villa architecture after 1914 comprises a diverse and extensive group of buildings. The lack of a system of valuating them leads to their analyses being a time-consuming and complex process. Their justification can refer primarily to architectural and urban planning tendencies, including: the impact on the space of previously built estates, the assessment of the quality of their architecture in the landscape context and the continuity of design traditions, contemporary interventions associated with renovation work. The protection of villas from the interwar period, appears to be particularly important. Their cultural value and the quality of the landscape, that they co-create with their accompanying gardens is highly significant to the identity of the city.

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Authors and Affiliations

Katarzyna Łakomy
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Abstract

Contrary to the prevailing methodological consensus, this article defines autopoiesis as a synonym of autocreation, or, more precisely, discursive identity construction. The latter refers to a literary ‘existential project’ which assumes that the sense of the self, or sameness, is the product of multiple, mostly discursive, interactions. They are the tex-ture of complex cultural processes which result in the determination by an individual of what he/she would like to be or what he/she would like be perceived. This construction of the self is in a state of ongoing contextualization within two distinct identity dis-courses, the discourse of individual uniqueness (founded on the sense of one’s body) and the discourse of collective participation (as defined by politics). The article argues that the two-dimensional contextualization is essentially historical and defines a broadly understood modernity. By examining the work of Gustave Flaubert the article shows how the oscillation between these two poles shapes the image of the modern writer created by Flaubert himself.
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Authors and Affiliations

Michał Paweł Markowski
1

  1. University of Illinois, Chicago i Uniwersytet Jagielloński

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