Rockburst Induced by Geological Structure and Dynamic Load in Deep Mines
1China University of Mining and Technology, Xuzhou, China
2Central South University, Changsha, China
3Ruhr Universität Bochum, Bochum, Germany
Rockburst Induced by Geological Structure and Dynamic Load in Deep Mines
Description
As one of the typical coal-rock dynamic disasters, rockburst causes a serious threat to safety and production in deep mines, with significant characteristics of suddenness, instantaneous vibration, and huge damage to workers and equipment. Recently, rockburst has become a dominant challenge threatening the safe production of mines.
In recent years, with the increasing depth of underground mining, the geological conditions become more and more complex. The dynamic load disturbance caused by mining is easy to induce the geological structure instability and rockburst accident. Until now, rockburst accidents caused by geological structure and dynamic load disturbance occurred in many countries, such as the Lucky Friday Mine (USA), the Strathcona Mine (Canada), the Big Bell Mine (Australia) and the Longyun Coal Mine (China). Especially, on 20 October 2018, a disastrous rockburst suddenly happened during the excavation of the #3 crossheading of the 1303 working face water-draining roadway at the Longyun Coal Mine in Shandong province, China, which caused 21 deaths and four injuries. By field survey, the geological structure and dynamic load disturbance were identified as the main inducing factors of this accident. Therefore, the deep understanding on the mechanisms, advanced monitoring and warning technologies, and corresponding prevention and control methods for this type of rockburst are an urgent issue.
In this Special Issue, deep understandings on the rockburst induced by geological structures and dynamic load disturbance are encouraged, consisting of the mechanisms, monitoring, and early warning and prevention methods, especially for the case study of the type of rockburst. Manuscripts should focus on the mechanical mechanism analysis of the rockburst, validation of experiments or numerical simulations in the lab, and field applications of advanced monitoring and warning methods. The prevention and control technologies for this type of rockburst are particularly welcome. Additionally, review articles that discuss the state of the art, future directions, and advanced technologies or methods in relevant fields are also encouraged.
Potential topics include but are not limited to the following:
- Rockburst mechanism of structure instability and coupled dynamic load disturbance
- Deformation, failure and instability of coal and rock combinations in tectonic areas
- Modelling of coal-rock parting-coal structure (CRCS)
- Experimental and numerical investigations of geological structure instability
- Loading model of dynamic and static stress in geological structures
- Precursory information of rockburst triggered by geological structure instability
- Advanced analysis methods and technologies of microseisms and acoustic emissions
- Applicable methods for effective prevention and control the type of rockburst
- Deep analysis of field rockburst accidents
- Intelligent monitoring methods for rockburst
- Intelligent prevention methods for rockburst
- Optimized mining methods for prevention rockburst
- Roadway layout methods for prevention rockburst