financial support from the National Basic Research Program of China (No.2005CB221500);the National Natural Science Foundation of China (Nos.50534049,50674087 and 50974107);the Natural Science Foundation of Jiangsu Province (No.BK2007029)
In order to explain the mechanism for gas outburst, the process of evolving fractures in coal seams is described using system dynamics with variable boundaries. We discuss the failure modes of coal containing gas and ...