ANALYSIS AND PREVENTION OF ROCKBURST HAZARD AT THE COAL FACE WITH HIGH STRESS AND HARD SANDSTONE
In this paper, the bump tendency characteristics of coal samples and coal-rock combination samples obtained from panel No. 7251 in the western Yaoqiao coal mine section are measured on the basis of the lab experiments. It is decided that between the roof and coal seam, the bottom has a much higher bump tendency than the coal seam. Rockburst hazard in panel No. 7251 is graded and evaluated, and the key area for preventing rockbursts is ascertained. Moreover, the coal seam infusion technology and its responding parameters of rockburst prevention at the tail entry of panel No. 7251 are formed. The in-situ monitoring results of coal drilling amounts have shown that the rockburst hazard has been successfully eliminated through the use of coal seam infusion, and the safe production at the coal face has been reliably ensured.
FU-LIAN HE DONG-PING YIN YONG-JUN HE JING-MING YAO
College of Resources & Safety Engineering,China University of Mining & Technology (Beijing) Beijing, College of Resources & Safety Engineering, China University of Mining & Technology (Beijing) Beijing Civil & Environmental Engineering School, University of Science and Technology Beijing Beijing, 1000
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
757-762
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）