Construction of gas prevention and control system in China Pingmei Shenma Group

In order to scientifically and effectively control the gas in the deep mine of China Pingmei Shenma Group and to ensure the sustainable development of t he mine, based on the review, summarization and analysis on the gas prevention and control course, a discovery was conducted on the construction of the gas preventi on and control system and the idea of the gas prevention and control was continuously upgraded. According to the principles of"one mine one policy" , one face one poli cy"and the gas grading control, a technical route of the gas prevention and control was planned. The human-financial-material support measures were set up and a site advance management method was refined. The“one face with multi gateways"of the long mining distance coal mining face, the protective seam mining in ultra thin sea m ( near full rock stratum)，high hydraulic flushing borehole and other gas prevention and control key technologies were overcame.The gas prevention and control syst em with the features of China Pingmei Shenma Group was formed and the firm base was set up for the mine safety and high efficient production of the group. With the i mplementation of the system, the mine accident number occurred in the group was reduced from 15 accidents in the national 11th five year plan period to 2 accidents 0 ccurred in the national 12th five year plan.