Particularities of solving the problem of sustainable development of chromite underground mining at deep horizons by means of combined geotechnology

Abstract

The paper covers the particularities of development of Don chromite field and improvement of applied technologies of underground mining using uncontrolled caving. The weakest point of the technology of uncontrolled caving and any other similar structures is mining operations under the caved mass that considerably affects the stability of mine workings and their safety during the whole period of stoping. This issue is one of the most important and urgent, especially at the transition of mining operations to deeper levels where technological particularities of the minefield are getting more complicated. Therefore, the Project Development and Substantiation of Parameters of Combined Geotechnology for Safe and Sustainable Development of Chromite Mineral Resource Mining for underground mining will be a new technological solution ensuring the replacement of exhausted mineral resources in the Republic of Kazakhstan in the conditions of transition of mining operations to deeper levels. Further development at the combined and sequential underground mining operations using the system of uncontrolled caving and the system of horizontal layers with stowing is essential.