Ph.D. Tezi Görüntüleme | |||||||||||||||||||||
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| Summary: Rock Slope Stability Analyses by Probability Method and Excavabilty in Tasönü Limestone Quarry (Trabzon)Limestone quarry was investigated by probabilistic methods. The quarry was opened Late Production of raw materials was decreased and legal problems occurred because of plane failures in 2005 and 2006 years. This quarry was providing the most of the demand for the raw material Askale Trabzon Cement Factory before landslides.The friction angle and cohesion of the failure plane in clayey layer formed from weathering of the red colored carbonated tuff are found to be 9-160 and 10-60 kParespectively as the result of back analyses. It tried to determine the acceptable probability of failure (%Pf) and reliability index(b) by analyzing stable and unstable slope based on Monte Carlo Simulation Technique. According to the analysis, if Pf%10 b1.3 then the slope investigated is stable.The stability analyses of the slopes after landslides were performed by Monte Carlo method. Then It was concluded that these are unstable. Even if there is not the effect ofwater, the failure can be formed in these slopes Monitoring system must be established in the tensile crack on the slopes afterlandslides urgently. Also, 1/1000 scaled mapping was prepared for rocks formed from various fasies. And each units considering engineering behavior was separated ashomogeneous area. Discontinuity properties of geotechnical units were measured. And it was determined that the best evaluation of the excavability can be with excavability index.In addition to, the slopes to north was done design. For the suggested design profiles, overall slope angle is range between 30-350 and heigth and width of bench are respectivelyrange between 6-9 meters, 8-10 meters Key Words: Tasönü Limestone Quarry, Planer Failure, Back Analyze, Monte CarloMethod, Properties of Discontinuity, Excavability, Trabzon | |||||||||||||||||||||