Application of Electromagnetic Wave to Detecting Tectonic Soft Coal
The current high level of coal production is rapidly depleting easily minable coal reserves. Future mining will gradually concentrate in deeper underground coal seams. Accordingly the coal and gas outbursts occur more easily during the coal production for the increase of the gas pressure and content in the coal seams. Predicting and forecasting of the outbursts become more and more important by a non-contact detecting technique. In general, the distribution area and thickness of the tectonic soft coal is indicative of the outburst conditions. To detect the tectonic soft coal has been become an indispensable work. As an example, an electromagnetic wave technique of detecting and imaging of this coal was conducted and investigated in Pansan coal mine, Huainan coalfield. The results show that this technique is capable of detecting the distribution area and relative thickness of the tectonic soft coal based upon the magnitude of the electromagnetic wave attenuation after penetration. The validity of this technique has been verified by coal mining. The unsolved problems are how to quantify the thickness and to distinguish the layer number of the tectonic soft coal from the unmined coal seams.
electromagnetic wave tectonic soft coal coal and gas outbursts Pansan coal mine
CHEN Jiangfeng WANG Suling TANG Youyi SUN Siqing
School of Resource and Environmental Engineering, Henan Polytechnic University, Jiaozuo 454003, Hena School of Resource and Environmental Engineering, Henan Polytechnic University, Jiaozuo 454003, Hena Xian Branch of China Coal Research Institute, Xian 710054, Shanxi, China
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
1370-1373
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）