Vyčíslení nákladů při postupu těžby v zónách výskytu závalových polí na lomu Bílina

Abstract

The thesis deals with quantification of expenses, which arise on behalf of Bílina quarry in the process of mining giant in front of the working faces to zones with remnants of deep mining of the brown coal. The old mines slow down and complicate the face advance due to necessary disposal of these old mining objects from security reason. I have tried to quantify additional costs required for liquidation of those objects. Quantification of those costs is an important factor for planning and creation of financial reserves for subsequent liquidation and mining of the caving fields. The first part of the thesis is devoted to the characteristics and history of Bílina and to recent mining activities around the city. Second part of the thesis contains analysis of the problem of occurrence of caving fields during surface mining, and their presence in Bílina quarry. The third part of the thesis deals with issue of liquidation of old mine workings and subsequent advance of the working face over caving fields. Last part of the thesis is devoted to calculations of the expenses additionally required beyond expenses necessary for regular mining process