会议专题

Dynamic Prediction of Coal and Gas Outburst Sensitive Index

Risk forecasting of the coal and gas outburst in working face is the first link of outburst forecasting management in mine wit outburst, and an accurate determination of the sensitive index of coal and gas outburst is very important to safe production of coal mine. Aiming at the problems of low accuracy of risk forecasting and lack of proper method to determine the critical value of the outburst sensitive index, the Statistical Process Control (SPC) method was proposed, the selecting method of SPC control chart was discussed, and the drawing process of SPC control chart and the determination of critical value of the outburst sensitive index were analyzed. At the same time, the three-rate method was used to analyze the field data of the outburst index and the accuracy of calculation results was proved. The results showed that the affected extent of coal is different in underground working face with the change of drilling depth, the critical value should be changed and it should be not uniformly determined as a fixed value simply. The outburst risk would lead to a dynamic change along with changes of space and time. The SPC is a dynamic forecasting method, which may determine the sensitive index of outburst forecasting accurately and reduce the accident rate of the coal and gas outburst.

Statistical Process Control (SPC) method coal and gas outburst sensitive index critical value

ZHAI Cheng LU Zhen-guo ZHAO Yan-xu LIN Bai-quan

State Key Laboratory of Coal Resources and Mine safety, CUMT, Xuzhou 221116, China Faculty of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, China

国际会议

The 2nd International Conference on Mine Safety and Environment Protection(第二届采矿、安全与环境保护国际会议)

西安

英文

231-239

2011-10-10(万方平台首次上网日期,不代表论文的发表时间)