Duanpiqiao mining area is located in the east of Shaoyang city, Hunan province, where has a complicated structural system composed of Duanpiqiao coalbearing syncline and F9 faults. The coalbearing sequence is the upper member of Longtan formation (P2l2) with four coal beds, of which 2 can be mined (No.2 and No.3). The No.1 coal bed, 0~2.36 m thick, 0.89 m on average, uncontinuous, low ash, low volatile, medium to high sulfur, very high heat value, low phosphor, low melting ash, medium coking, and as lean coal in metamorphism, which can be mined in most area. The No.3 coal bed, 0~4.6 m thick, 1.24 m on average, continuous, low ash, low volatile, mediumhigh sulfur, very high heat value, low phosphor, low melting ash, medium coking, and as lean coal in metamorphism, which can be mined in whole area. In the mining area, some potential hazards such as coal and gas outburst, coal dust explosion and coal spontaneous combustion. A complicated engineering geology, a simple hydrogeology and a medium environmental geology. The resource is 44.9 million tons, 20.03 mt in the No.1 coal bed, 24.87 mt in the No.3.
