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Landslides from the side slopes of the road are phenomena that are caused by changes in atmospheric conditions which have also affected the change of physicalmechanical parameters of clay layers that have caused the stimulation and possible activation of landslides, but during the study of this area additional measures have been taken to solve this problem in order to prevent the possibility of landslides that are a traffic jams and a high risk on the highway at which the maximum speed allowed, according to the standards based on which the road is constructed, it is foreseen to be 120 km/h, then to reduce the risk of not coming to the traffic jams on the highway that can cause fatal accidents on that segment of the road according to the case shown in Fig. 1 as well as to find a solution to avoid this phenomenon of slips is made the comparison of the existing condition of the side slopes of the road and the designed one, which is the purpose of this paper, calculating the stability of the side slopes according to the existing condition and that designed taking into account the physical -mechanical parameters with the safety factor allowed according to geotechnical standards.

Today, the region in general but also Kosovo faces a lack of electricity on the one hand and environmental pollution on the other hand from existing power plants where electricity is produced for the community in general in thermo-plants Kosovo A and Kosovo B. The purpose and importance of this paper is that for the samples taken through the layers (floors) of coal by drilling to extract the calorific values of coal (ETU) and the percentage of ash, whose parameters were analysed in the laboratory of geo-mechanics according to the standards (ISO 9001) in order to eliminate the weak part of coal that would have a positive impact on increasing electricity production but also on reducing environmental pollution within the allowed values according to European Union standards. To carry out this work, a large number of drillings were performed from which 91 samples were taken at different depths, these samples were analysed and, at the same time, statistical processing was done in order to find the average caloric value of (ETU) and the content of ash with the lowest value, these parameters will help us to determine the method to be applied during the exploitation in order to create better conditions for the transport process to the power plants by means of conveyor belts and, at the same time raising the quantity of energy production and reduction of carbon dioxide (CO2). Doi: 10.28991/CEJ-2022-08-08-05 Full Text: PDF

Construction of modern, seismically safe bridge structures represents a permanent activity of the highest importance because bridge structures are important key elements responsible for providing continuous functioning of integral highway infrastructure systems. An extensive experimental and analytical research led by the third author was performed in the Institute of Earthquake Engineering and Engineering Seismology (IZIIS), Ss. Cyril and Methodius University in Skopje, lasting three and a half years, in the frames of the innovative NATO Science for Peace Project “Seismic Upgrading of Bridges in South-East Europe by Innovative Technologies (SFP: 983828)”, involving five countries. The specific project part included development of the innovative upgraded seismically isolated system USI with vertical multi gap V-MG representing an advanced technology for seismic isolation and seismic protection of bridges. By integrating the new uniform, vertical multi-gap (V-MG) energy dissipation devices, qualitative advances of the USI-V-MG system were achieved. The original observations resulting from the conducted complex, unique and critical near resonance shaking table tests of the constructed large-scale bridge model are presented and discussed in this paper. The extensive experimental research program was realized on a bridge model constructed by using the seismically isolated system upgraded with uniform vertical multi-gap energy dissipation devices (USI-V-MG). The installed adaptive system for seismic protection of bridges utilizes originally produced double spherical rolling seismic bearings (DSRSB) as seismic isolators, while qualitative improvement of the seismic performances is achieved through the use of novel, uniform vertical multi-gap energy dissipation (V-MG-ED) devices.