Research On Coal Mine Sudden Accidents Control And Emergency Management Strategy

Coal mine accidents as a kind of the most common and highest-mortality sudden accidents, should be taken seriously. As the advance of science and technology, coal mine safety situation continued to improve. Coal mine accidents has been significantly reduced, at the same time one-million-ton mortality also declined substantially, but coal mine accidents still can not be effectively put an end. In this context, how to prevent incidents, how to make a rapid response time of the accidents and how to control the impact of the accident, is critical for coal mine safety management, thus study on coal mine emergency management is also very necessary.Since we go to coal mine enterprises to research and collect data from the coal mine emergency plan, emergency management system and emergency response capability assessment, emergency management status of coal mine accidents in China are summarized. And from the emergency management organizational structure, operational mechanisms, and development of qualified personnel and emergency security system, the problems of sudden emergency management of China’s coal mine are obtained. Coal system is a complex and uncertain time-varying system, system of scientific thought is used to establish the coal mine accidents state system architecture, and from four subsystems of the production and transport, logistics and distribution, resource protection and safety management, respectively, a detailed description of the use of the system is given. The dynamic principle and the method of Lyapunov and robust performance analysis method are used for stability analysis of the system, and five characteristics of the steady-state system like complexity, time variation, potential-order, stability and controllability are summarizes. Coal mine system parameters are simulated as signal transmission, and then accidents of the coal steady-state system are the signal interference. Discrete wavelet transform principle is used to detect the disturbance events. The application of cybernetics principles of disturbance parameters added to the steady-state system model solved, consisting of perturbation model control law, to seek state control scheme of the system external disturbance can be measured. On this basis, in case of a coal and gas outburst incident, the above model have been verified,1440gas concentration monitoring data of the A mine are translated into signal format. Four possible coal and gas outstanding points are detected through discrete wavelet transform. At the same time the coal system parameters are approximate fitting as a linear time-invariant systems, the accidents state under the state feedback and disturbance along feed forward control law is obtained. Accordingly, the emergency management strategy supports the corresponding theoretical support for the coal sudden emergency management.The innovation of this paper is that control theory is applied to the mine emergency management issues and coal mine accidents are simulated as system disturbance events. Also discrete wavelet transform is used to detect the disturbance events for the prevention of accidents and real-time detection provides new ideas. At the same time, coal disturbed state model is showed as differential equations with a parameter, and then the control strategy of the state can be measured to obtain emergency management strategy. This plan preparation can provide a strong theoretical basis in the coal mine safety management and has practical significance.