Abstract
This work would not have been possible without the support of “DTEK Energo” company. The studies were performed within the framework of the state-maintained scientific research topics. The authors express special gratitude to professors of the National Mining University – Volodymyr Bondarenko and Iryna Kovalevska – for the support in conducting the research.
Highlights
MethodsSystem analysis of computational experiments’ results was based on the use of recursive calculation methodology for assessing accuracy of the obtained results with different methods of geometric and physical description applied to individual elements of simulation in the computational domain
The development of technologies for underground mining is currently retarded, largely because of impossibility to predict rapidly and accurately the behavior of the massif adjacent to the excavations operating in difficult geological conditions (Toderas, 2014)
The authors created a system for the assessment of the results obtained via computational experiment at the time of full-scale investigation, which provides a comprehensive analysis of changes in the rock massif state during the operation of the selected support system
Summary
System analysis of computational experiments’ results was based on the use of recursive calculation methodology for assessing accuracy of the obtained results with different methods of geometric and physical description applied to individual elements of simulation in the computational domain. Sample tables were obtained containing the acceptable values of weight characteristics for the various simulated elements in the generalized computational domain. The authors created a system for the assessment of the results obtained via computational experiment at the time of full-scale investigation, which provides a comprehensive analysis of changes in the rock massif state during the operation of the selected support system. The conditions of combining the design characteristics of the simulated support elements functioning in a single load-carrying system under dynamic redistribution of forces were obtained. The resulting generalized model of mine working and elements affecting its condition allows to determine most accurately the nature of changes in the stress-strain state of geotechnological system regardless of the originally a priori specified limitations.
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