The Panel Mining System Dynamic Reliability Study Of The Upward Horizontal Slicing And Filling

For the analysis of the mining field dynamic stability changes in the panel mining process,this paper has established dynamic reliability analysis method which based on MCS-BP-GTS method. A lead-zinc mine in Yunnan province as the research object to carry out the application research, and the main research contents are as follows:(1) Research on the calculation method of dynamic reliability which based on MCS-BP-GTS method. Has established the mining model by a finite element software- Midas/GTS. According to the distribution characteristics of mine rock influence factors, this paper has completed MCS sampling and calculation. In order to meet the reliability requirements for data, applicatiing of BP artificial neural network which is based on MATLAB platform for a large number of data processing, thus has established a system dynamic reliability method based on MCS-BP-GTS method.(2)The dynamic reliability of stope which is based on MCS-BP-GTS of the upward horizontal cut and fill stoping method. According to the instability of the upward horizontal cut and fill stoping method in the process of mining and finite element simulation results, extracting feature point process of stope mining as the object of reliability index calculation. Study the dynamic change law of stope reliability with the mining step, and then on the basis of stope dynamic reliability to optimize design parameters.(3)The dynamic reliability of mine prop which is based on MCS-BP-GTS of the upward horizontal cut and fill stoping method. According to the instability of the upward horizontal cut and fill stoping method in the process of mining and finite element simulation results, extracting feature point process of mine prop mining as the object of reliability index calculation. Study the dynamic change law of mine prop reliability with the mining step, and then on the basis of mine prop dynamic reliability to optimize design parameters.(4)The research of panel system dynamic reliability based on the MCS-BP-GTS method. According to the instability rules of stope and mine prop in the mining process of panel to analyse the series parallel connection of stope and mine prop. Thus has established the method which is based on MCS-BP-GTS of the system dynamic reliability calculation of panel,and use this method to optimize the design parameters and mining sequence of panel.In this paper,the system dynamic reliability calculation method that based on MCS-BP-GTS of panel can solve the complex system problem that the computation is difficult to achieve in the stability analysis of the panel mining. And based on the rule of dynamic reliability of panel system,we had optimized the design parameters and mining sequence of the lead-zinc mine which in Yunnan province. The research in this paper has certain theoretical significance and practical value.