Research on coupling mechanism of mine structure and gas occurrence
Taking south and east Suzhou mining areas as an example, the coupling mechanism of mine structure and gas occurrence is further discussed. The results show that the regional tectonics have a distinctly control over the distribution of gas content. East Suzhou mining area, located in the overlying system of Xu-Su thrust nappe structure, has good sealing conditions to preserve gas, which leads to a well developed high-gas coal reservoir. Relatively, south Suzhou mining area lies in the underlying system, showing a low gas content. Meanwhile, mine structures also control the heterogeneity of gas distribution. For example, relatively large scale mine fractures are always the demarcation of adjacent gas division and the shear fractures is the main basis for division of relatively closed tectonic units. Moreover, shear sliding faults often change the thickness of coal seam rapidly, resulting in dangerous zones of high gas content and outburst.
structure gas occurrence coupling mechanism Suzhou coal mine
Jang Bo Qu Zheng-hui Wang Ji-lin Li Ming Dou Xin-zhao
School of Resources and Earth Science, China University of Mining & Technology, Xuzhou 221116, China
国际会议
The 6th International Conference on Mining Science & Technology ICMST 2009(第六届国际矿业科学技术大会)
徐州
英文
1-8
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）