Belgorod National Research State University, Belgorod, Russia:

Sergeev S. V., Head of a Chair, Professor, Doctor of Engineering Sciences

Zaytsev D. A., Post-Graduate Student, e-mail: zossen45@yandex.ru

The paper presents the research results of the formation conditions of filling mass during the development of rich iron ores of Yakovlevskiy deposit of Kursk Magnetic Anomaly. The severe mining and hydrogeological conditions of the deposit determined the usage of layerwise development system with the descending processing order and with a goaf stowing by the solidity mixtures. The experimental works were carried out in one of the operational units of Yakovlevskiy mine, at more than 600 meters depth of mining operations. The strain gauge monitoring stations of the stress-strain state of the massif include the string temperature converters STC-60 (ПТС-60) with an ohmic resistance. These temperature converters are applied as a means of the thermal regime monitoring of filling massif.

There are also established natural factors, which determine the environmental humidity conditions of deep mining at the mine. The sizes and duration of the exothermic reheating of solid stowing were practically set due to the chemical processes of the cement hydration, which should be considered as an anthropogenic factor, which has an influence on the thermal regime of filling massif.

With the object to improve the work safety and drawing near the resumption of second workings in the underground mine and surrounding areas, the following parameters are recommended to use:

-the parameters, which are favorable for the ensuring of the characteristic strength of filling massif;

-natural and anthropogenic parameters;

-temperature and humidity parameters.

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