Abstract
In the course of the work to identify the modern coordinates of the points of the state (SGN) and reference mine surveying (RMSN) networks of Orenburg Minerals JSC, the deformation characteristics of the earth’s surface in different time periods were obtained and a geomechanical model of the rock mass was built both on the industrial site itself (quarry, dump), and beyond the areas, influenced by mining. Based on the data obtained, the parameters of deformation of the rock mass and the adjacent rock mass in three planes, as well as the relative deformations and the magnitudes of the tectonic stresses that caused them were identified; during the analysis of negative factors potentially dangerous areas of the adjacent rock mass were also identified.
Highlights
The territory on which the Kiembaevsk chrysotile-asbestos field is located is confined to the Main Ural fault zone and is represented by three main deposits: the Main site, the Northern site and the Third site
The tectonic structure of the area of the field and the enclosing rock mass allows predicting a high level of modern geodynamic mobility outside the area of significant anthropogenic impact, while the displacements and deformations of the background can be comparable to anthropogenic displacements and deformations
Rock displacement, a phenomenon that accompanies the extraction of a mineral, is understood as the whole complex of deformation processes occurring in the rock mass, in this case in the adjacent rock mass, during the formation of the initial stress-strain state outside the area of influence of mining and its transformation within it
Summary
The territory on which the Kiembaevsk chrysotile-asbestos field is located is confined to the Main Ural fault zone and is represented by three main deposits: the Main site, the Northern site and the Third site. The most powerful tectonic zones at the Kiembaevsk field are separated by the three above-mentioned asbestos-bearing deposits. The main, and often the only, source of data on the initial and anthropogenically altered stress-strain state of the rock mass is field measurements of the displacement process parameters [1]. In this case, rock displacement, a phenomenon that accompanies the extraction of a mineral, is understood as the whole complex of deformation processes occurring in the rock mass, in this case in the adjacent rock mass, during the formation of the initial stress-strain state outside the area of influence of mining and its transformation within it
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