ABSTRACT
There are many ways to improve labor productivity and economic benefits for coal mining enterprises, but all ways must rely on the technological progress to accelerate the construction of high yield and high efficient mine and to promote the modernization of the coal industry. As China’s major mining base with hundreds of million tons of coal production, in recent years the Pingshuo Mining District has tried to use the open-underground combined mining in shallow horizontal thick coal firstly, which is a safe and new model and has achieved considerable economic benefits (Ren et al. 2007).
