||Extracting Residual Coal by Auger Highwall Mining at Mae Tan Coal Mine, Thailand
Boeut, S ,
Laowattanabandit, PFujii, Yoshiaki
Proceedings of Spring Meeting of MMIJ Hokkaido Branch
60 , 2017-06-16 , MMIJ-Hokkaido Branch
Mae Tan Coal Mine is the only two coal mines left in
Thailand. This mine consists of two coal seams (lower seam is 4m and the upper is 2.5m), top soil red clay, sandstone, shale, ball clay, carbonaceous shale and rhyolitic tuff with the elevation of 288 and 120-meter height at the top and bottom respectively. The overall pit angle is 45 C. The rock properties are demonstrated as in Fig.1. To extend the mining life from the recent surface mining, Auger Highwall Mining (AHM) is an altered technology.