Artykuły (CN-jge)
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Artykuły czasopisma Journal of Geotechnology and Energy
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Ostatnie wpływy
- ArtykułOtwarty dostępDeformation bands – migration pathways or barriers for hydrocarbons in sedimentary rocks – mini review(Wydawnictwa AGH, 2023) Solecki, Marek LeszekA mini review of the topic of deformation bands is presented in the paper. The concept of deformation bands is defined and their impact on the flow of fluids in porous sedimentary rocks is determined. Deformation bands are mm-thick low-displacement deformation zones which have intensified cohesion and lower permeability compared with ordinary fractures. This term was introduced in 1968 in material science, ten years later it appeared in the geological context. This microstructures can occur as barriers or migration pathways for hydrocarbons. Their role depends mainly on microstructural features, and they are also considered in reservoir modeling. The occurrence of deformation bands in Poland is also outlined and discussed - they have been described in Western Outer Carpathians (Magura and Silesia nappes).
- ArtykułOtwarty dostępA geotechnical characterization for wind turbine construction(Wydawnictwa AGH, 2024) Sharma, SagarikaThis paper explores the critical role of geotechnical aspects in optimizing the performance and resilience of wind turbine foundations. It emphasizes the importance of comprehensive geotechnical investigations, including soil borings, in-situ testing, geophysical surveys, and laboratory analysis, to inform foundation design parameters. Remote sensing techniques aid in optimizing turbine layout design, while the collaboration between geotechnical and structural engineers ensures effective foundation design. Ultimately, the comprehensive characterization of wind turbine sites is essential for ensuring stability, reliability, and long-term performance, contributing to the sustainable growth of renewable energy infrastructure.
- ArtykułOtwarty dostępAnalysis of the potential heating of selected student residences at The AGH University Of Krakow using the earth’s heat(Wydawnictwa AGH, 2023) Sapińska-Śliwa, Aneta; Kunasz, Remigiusz; Śliwa, TomaszThe aim of this study was to adapt the operating parameters of a geothermal heat pump system to the required average power needed to meet the energy for central heating and domestic hot water of selected student residences. Calculations of the average power required by the dormitories in the AGH University Student Campus were carried out, as well as modelling of the deep borehole heat exchanger for the heating load. The designed heating system for the student residences in the AGH University Student Campus using a deep borehole heat exchanger – is sufficient to cover the base heat demand for five four-storey dormitories. During the writing of the paper, the main problem was the low availability of articles on deep borehole heat exchangers. This is due to the continuous development and testing of new engineering ideas. Deep borehole heat exchangers can be use as new boreholes or wells prepared for liquidation. Also use of closed boreholes sometimes is possible, depending on project of liquidation. The future districy heating will use low-temperature heat carrier for heating and cooling. Use borehole fields as rockmass use for heat and/or cool ,storage will be common.
- ArtykułOtwarty dostępGroundwater contamination by BTEX hydrocarbons and phenol at former gasworks sites in Bydgoszcz(Wydawnictwa AGH, 2023) Macuda, Jan; Łukańko, ŁukaszThis paper addresses the historical environmental impact of Bydgoszcz’s ‘Old Gasworks,’ located on Jagiellońska Street on the Brda River—one of Poland’s oldest and longest-operating gas production facilities. Municipal gas derived from dry coal distillation served both municipal and industrial purposes until 1973. However, the production process, marked by significant nuisances, particularly affected the ground and water environment. Pollutants, primarily organic compounds such as aromatic hydrocarbons, including PAHs (polycyclic aromatic hydrocarbons), and BTEX hydrocarbons (benzene, toluene, ethylbenzene, xylenes), phenol and mineral oil, entered the environment through equipment failures, leaks, and the improper storage of wastewater and technological waste. One of the major sources of contamination was inadequately executed construction activities related to the dismantling of installations and the liquidation of sewage and waste storage tanks. This paper presents the findings of a comprehensive study focusing on hydrocarbon concentrations in groundwater at the ‘Old Gasworks’ in Bydgoszcz and proposes effective methods for treating the water environment.
- ArtykułOtwarty dostępAssessing the impact of expressway construction and operations on groundwater intake(Wydawnictwa AGH, 2023) Łukańko, Łukasz; Macuda, JanExpressways represent significant public investments contributing to the socio-economic development of a country. However, their construction and operations exert detrimental effects stemming from the road surface onto the adjacent groundwater environment. To mitigate these adverse environmental consequences, extant legal restrictions are factored in during the expressway design phase, accompanied by the implementation of modern technical and organizational solutions. As a pivotal legal instrument, the environmental impact assessment is mandated in the procedural framework for obtaining approval on environmental conditions during expressway construction. The precision in evaluating the negative impact of an expressway on distinct environmental elements hinges on the depth of the assessment, influencing the nature and extent of planned protective measures. In many instances, supplementary environmental risk assessments are conducted to bolster the investment process. This study aims at discerning the specific impact of expressway construction on nearby groundwater intake. To achieve this, an exhaustive assessment of contaminant migration times from the land surface to the aquifer and within the aquifer itself was executed. Subsequently, a proposal for aquifer monitoring was formulated based on the findings to enable the early detection of potential shifts in groundwater quality, facilitating timely preventive interventions.
