Ikonnikov M. SThe method and technical statements of ventilation control of gas mines extraction sections

The dissertation is devoted to improving of regularities of aero dynamic and geo mechanical changes of mining massif under the influence of second working. It presents the efficient ways of ventilation control at the extraction sections of the gas dangerous mines. The specifics of gas source release are defined. It is in most cases for porous sandstone, in the spherical rock mass during working out of coal stratum. And it is set the interconnection of their destroying degree and aero dynamic regime of unsafe as for gas at the extraction part of coal mine. The mathematical model of dynamic peculiarities for ventilation network of coal mine extracting section is developed for mine as the managing object. It was established the regularity between the scale of methane volume and the distance to the source of air distortion. They are differed by the accounting of air stream acoustic capacities. The method of radiometric control of methane inflow and detection of potentially dangerous areas of mining works are firstly proposed. The new method of ventilation and methane removal from the cleared off mine working sections is developed. The research results are used in development and adoption of monitoring methods for aero gas parameters of extraction areas, for the method of ventilating and methane removal from the cleared off mine working sections. The virtual economic effect is received in the result of development usage.