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The authors of this article describe the suitability of using light dynamic penetration in the target area. The area of this survey was selected on the already reclaimed area, which, however, proved to be unstable. The main objective was to locate individual water-saturated horizons in the locality and, eventually, to determine the shear areas on which instability occurs. For this reason, several geodetically measured points were selected for dynamic penetration measurement. By this method, the water-saturated hor...

This work will deal with the use of various geophysical methods for exploration of the sliding area and the determination of the interface between the layers in the sliding area at the Bohu?ovice Quarry. For this purpose, light dynamic penetration will be carried out, which is a dynamic penetration test that is used in-situ to determine the soil resistance of penetration cone. A constant dynamic impact is used to constrain the cone, which is due to the free fall of the ram with known weight and constant fall heigh...

The article deals with a basic economic image of the inland company Severo?eskпїЅ doly a.s. from 2010 until 2014. It is a company producing most brown coal in the Czech Republic. An economic insight into the company reveals important information for investors, but also for employees themselves, eventually it provides suppliers and customers with many useful data. The article presents basic economic indicators within a chosen period, their development and overall evaluation. It is indeed the economic analysis of th...

This paper describes possibilities to use numerical models as significant aid in proposal of slope stabilization in Quarry. More accurately the proposal for excavation way of first soil overburden cut, which is mixed up with rock mass, to stabilize the slope. That is real case study which was performed for greywacke quarry situated in Eastern Bohemia. Since 2005 a small instability symptoms are observed on eastern general slope of quarry. Based on this fact the slope stability investigation started in detail one y...