Slobodan Vujic

Optimal Dynamic Management of Exploitation Life of the Mining Machinery: Models with Undefined Interval

The paper is focused on the problem of determining the optimal exploitation life of the long-lasting mining machinery, such as bucket-wheel excavators, excavators with one working element of large capacity, spreaders, self-propelled transporters, conveyor belts and similar machinery. A concept of approach is presented, and an application of the dynamic model with the undefined interval is given by using the example of the bucket-wheel excavator. The paper concludes with observations and assessments regarding the subject matter.

Predictive analysis of slope stability of internal dumps in Tamnava–West field mine after flooding

The article reports the results of estimation of internal dump slope stability in flooded open pit coal mine Tamnava–West Field. The geostatic analysis of stability used methods by Bishop and Morgenstern–Price. The studies confirm that slopes of internal dump are sufficiently stable and sustain stability after drainage of the open pit.