Progress in mine safety science and engineering II : proceedings of the 2nd International Symposium of Mine Safety Science and Engineering, Beijing, China, 21-23 September 2013

As societies continue to grow and develop, the demand for energy has increased worldwide. In China, coal is still one of the principal energy resources and it is expected that more coal mining projects are needed in the future. As mining operations continue to increase their production rates and discover more ore reserves, mine safety issues have b