Conference paper

THE IMPROVEMENT OF THE EXCAVATION METHODS IN BAUXITE DEPOSITS

Borislav Perić
Slavko Vujec
Robert Zvežina

Abstract

The underground bauxite excavation in Yugoslavia is getting more important recently due to gradual exploitation of shallow deposits. The main excavation method is sublevel caving method. That technology of exploitation is characterized by high excavation loosses reaching even to 50% due to mixing of bauxite with waste. By beds with competent limestone roof which are not liable to direct caving are formed unplanned open spaces so the work safety is often dangercd by sudden caving. That was the reason for carrying out the observations in situ and investigations on mathematical models to define boundary of excavated space stability. This investigation were the basis for the new conception of further excavation of the »Jukići-Didare« mine with the application of even three exploitation methods maximally adapted to the characteristics of the remaining part of deposit.

Keywords

Bauxite; Underground exploitation of bauxite; Sublevel caving method

Hrčak ID:

24713

URI

https://hrcak.srce.hr/24713

Publication date:

4.12.1990.

Article data in other languages: croatian

Visits: 1.950 *