Estimation of geomechanical terms and condition of long workings mines of "DTEK Pavlogradugol" development perspective underground mining
Abstract
Estimation of geomechanical terms and condition of long workings mines of "DTEK Pavlogradugol" development perspective underground mining
Incoming article date: 06.05.2015The purpose of research, which are given in the article, is detailed analysis of the existent state of complex of the long workings and development perspective underground mining of Private stock company Pavlogradugol', estimation of total expenses on construction and maintenance of working taking into account repairs, estimation of condition complexity for the development of coal seams on the mines of Western Donbass. Methodical basis of the carried out complex researches is as follows: an analysis and generalization of literary sources and positive experience of maintenance of workings in difficult conditions; methods of mine visual inspections; methods of statistical, valuation, and analytical evaluation of the data on the state of the extended working and complexity of the conditions of development; a comparative analysis of the results achieved. The results of researches are as follows: generalized indexes of workovers on the mines of production amalgamation and separate groups of working; selected group of mines, referred to the category of “large” depth of development; dependence of the length of the workings of the unsatisfactory state on the development condition indicator, obtained from the results of analytical calculations; ways of increasing the stability of extended mine workings of Private stock company DTEK Pavlogradugol'. The got dependences allow determining possible expenses on repair and maintenance of workings in the operating state on the stage of planning. Effective for the examined mining and geological conditions the ways of improvement of support and methods of increase the stability of the long workings are grounded.
Keywords: long workings, stability, deep mine, expenses on maintenance, methods of maintenance