M.Sc. Tezi Görüntüleme

      In this study, the effects of the ground vibrations and over-air pressure induced by blasting operations performed at a limestone quarry were searched in terms of the potential impacts on the school, mosque, historic place and village houses and aimed to improve a blast design to minimize or eliminate these effects.

      In the scope of the study, the distances of the buildings nearby the limestone quarry were determined and measurement results were taken to determine the degree of the effects of the ground vibrations and over-air pressure on structures. Measurement results were taken by Instantel minimate plus belonging to Mining Engineering Department. The data of the shots were evaluated by the use of data software computer programme. In order to decrease these impacts, a statistical analyze was carried out to obtain PPV and scaled distance (SD) parameters for a whole mine shot direction. So a multi variate analyses of variance was performed to investigate if the measurements were similar for all directions or not. At the consequence of this analyze, it is determined that minimum one group is different for 0.05 significance level. So the data were determined to be evaluated in the bases of shot directions to carry out more sensitive and controlled blast events.

      The relationship between vibration frequencies, peak particle velocity, structural frequencies, scaled distance, peak acceleration and peak displacement parameters of the shots were investigated and their environmental effects were evaluated and compared with international standards. In addition to these, over-air pressure values were analysed and classified.