Forthcoming issue
Juliusz Krupiński1, Herbert Wirth1
1 Faculty of Geoengineering, Mining and Geology, Wrocław University of Science and Technology, Poland
Opportunities for future development of an energy infrastructure after production closure in KGHM shaft, by the example of an underground pumped – storage hydropower creation
Article touches on technical and technological aspects in the field of the possibility of creating energy infrastructure, after the end of production in the selected shaft of “KGHM Polska Miedź S.A.”. A cascade system of placing turbines in the shaft was proposed and the possibility of its creation was evaluated, respecting the dimensions of the turbines and the shaft. During the analysis, the relevant turbine capacities, flows, infrastructure dimensions and possible solutions to overcome the limitations of developing an Underground Peak and Pumped Storage Power Plant (UPSH) in a post-mining facility were examined.
Kaywords: energy storage, hydroelectric power plant, reclamation, underground pumped storage hydropower, post-mining facilities
https://doi.org/
Ryszard Snopkowski1, Marta Sukiennik1, Aneta Napieraj1
1 Faculty of Civil Engineering and Resource Management, AGH University of Krakow, Poland
Decision-Making in Hard Coal Mines with the Support of Selected Stochastic Methods
The article presents selected methods of stochastic process modeling that can support decision-makers in Polish hard coal mines. It outlines the classification of determinants that have a significant impact on the processes carried out in the mines. The article also distinguishes between programmed and non-programmed decisions made by the management in the mines. In the following sections, three selected methods are presented, enabling decision-makers to make more effective decisions that may be crucial for the processes implemented in hard coal mines.
Kaywords: hard coal mining, decision making, stochastic methods
Beata Świątek1
1PORR S.A., Poland
TS-26 tunnel – the longest non-urban road tunnel in Poland using NATM technology – case study
The article describes in detail the legal, technical and geological conditions faced by the designers and contractors of the TS-26 tunnel, located within the S3 expressway. The tunnel, which is the longest non-urban road tunnel in Poland, was constructed using the New Austrian Tunnel Construction Method (NATM), a mining method. The project presented a huge engineering challenge due to the challenging geological conditions and the need to ensure the highest safety standards. The article describes the design process, including detailed geological analyses, and the construction phases of the tunnel, which included excavation, construction of the primary and secondary lining, and installation of advanced safety systems. The TS-26 tunnel is a key element of the road infrastructure that will significantly improve communication in the region and support the economic development of Lower Silesia.
Keywords: tunnelling, tunnelling and tunnel construction, mining method of tunnelling
Jacek Zarzycki1
1Faculty of Mechanical Engineering and Robotics, AGH University of Krakow, Poland
The influence of selected parameters on the elasticity modulus of conveyor belts with a polyester-polyamide core
The article presents information on the influence of selected factors on the value of the modulus of elasticity of conveyor belts with a textile core. It presents a method for testing the modulus of elasticity in laboratory conditions, and indicates how the value of the modulus of elasticity changes depending on the load range and temperature. The modulus of elasticity is a parameter whose value is necessary for the correct design of long and unconventional belt conveyors in particular.
Keywords: conveyor belts, elasticity modulus, temperature, load