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A concept for prediction of mine-induced seismicity
| Content Provider | Scilit |
|---|---|
| Author | Kozyrev, A. A. Panin, V. I. Maltsev, V. A. |
| Copyright Year | 2020 |
| Description | Book Name: Frontiers of Rock Mechanics and Sustainable Development in the 21st Century |
| Abstract | According to modern synergetic conception of geological environment, a mine or underground structure with host rock mass is an open self-organising non-linear natural-engineering system (NES). The world experience and results of geodynamic monitoring show that such NES, for example, at mining Khibiny apatite-nepheline deposits during the process of their evolution, can be realised in 2 types of mechanisms: adaptation and threshold or bifurcation. The adaptation ensures the stability of developing system under specific conditions of outer environment. Adaptations is a largely controlled process, as far as the system parameters change within rather limited boundaries, which can be determined beforehand, according to system development laws and parameters of its initial condition. Analytical methods of geomechanics based on the information on physical properties and stress-strain state of rocks in situ and mining parameters enable to predict the ways of NES adaptation development at all stages of deposit development. The reliability of this prediction depends on variations of measured characteristics of in situ rock properties and condition and on adequacy of computational models to the physical nature of processes, occurring in rock mass. Experimental geomechanical methods, including geodynamic monitoring of NES, are used for prediction reliability assessment and its adjustment. As soon as the parameters of system or its separate parts achieve some critical values, the system, in the process of its development, is subjected to bifurcation, i.e. branching of evolutionary ways at transition through the threshold condition. The term “bifurcation” is quite often substituted in this case, by the term “catastrophe”, which, is in more conformity to the character of considering the processes under consideration, because a rock burst or induced earthquake can be one of the branches of further system development. The results of long-term analytical and experimental research at apatite mines have allowed to reveal the principles of realisation and spatial-temporal distribution of strong dynamic events and to determine some prediction parameters of NES critical state. |
| Related Links | https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9781003077510-113&type=chapterpdf |
| Ending Page | 486 |
| Page Count | 4 |
| Starting Page | 483 |
| DOI | 10.1201/9781003077510-113 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2020-12-17 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Frontiers of Rock Mechanics and Sustainable Development in the 21st Century Microscopic Research Adaptation Apatite Evolution System Development System Parameters Rock Mass Geodynamic Monitoring Experimental Realised |
| Content Type | Text |
| Resource Type | Chapter |
