Preservation of the Turyinsky copper mine has caused the necessity in carrying out expected engineering-geological investigations of flooding consequences of the mine which is territorially coinciding with infrastructure of Krasnoturyinsk. The factors determining flooding process parameters and its consequence are considered. On the basis of water level change monitoring results in a shaft “Kapitalnaya” in time of flooding, the article defines the empirical dependence of underground waters at ultimate level restoration from time. The system of drainage at preservation of the mine, which makes it possible to prevent flooding of residential territories, is developed. Calculations are fulfilled for the expected hazardous deformations forecasted borders and borders of deformations outcrop; their activation happens at underground waters level increase.
This work presents the results of the investigations of the formation of rock pressure on the support in the borehole zone in conditions of the rock massif transition to the out-of-limit state. The investigations are carried out by methods of field measurements of deformations of the surrounding rock massif in the borehole zone, on the measurement bases corresponding to the excavation section parameters in the process of the combined flowsheet construction of the mine shaft in the rock massif in the out-of-limit stress-strain state. On the basis of experimental measurements with the help of a computer program for the formation of functional-factorial equations of nonlinear regression "Trends FSP-1", the mathematical model describing the change in the absolute deformations of rock walls with the face advancement is derived. From the resulting mathematical model of deformation the exponential dependence of the coefficient, characterizing convergence processes, on the ratio of the distance from the face to the radius of the excavation is derived. The resulting values of the coefficient in conditions of the out-of-limit stress-strain state of the enclosing massif differ significantly from the values obtained previously for the elastic behavior of rocks.
The results of monitoring observations of the field of radon in the study of the developed area of Severopeschanskaya iron ore deposit with the process of displacement are presented. According to modern scientific views, geodynamic activity is involved in the formation of the field of radon emanation. Radon emission intensity depends on the intensity of modern geodynamic activity. In processing the results radon research to eliminate the influence of non-tectonic factors on the field of radon, a method of values of volume activity of radon in the soil air was used. Observations showed sharp differentiation of the emanation field in the area of displacement. Emanation field is characterized by high contrast and reflects geodynamic structure of the mountain range. There was a significant transformation of the stress-strain field during the observation period. Study of emanation field in time allows studying the evolution of strata movement in the area of displacement and predicting the trends of its development.