Abstract：The research on triaxial creep properties of coal containing gas is the important aspect of understanding the interactional relationship between gas and coal in the course of outburst. At present, there are few reports on triaxial creep properties of coal containing gas，so it is necessary to further research triaxial creep properties of coal containing gas deeply. By using self-developed creep experimental apparatus，a series of triaxial creep experiments on coal containing gas have been performed with coal samples which were taken from Songzao Coal Mine in Chongqing. The experimental results indicate that the triaxial creep properties of coal containing gas have a good regularity. In terms of the triaxial creep properties of coal containing gas，a modified Nishihara model under triaxial stress condition has been built by improving the model parameters of Nishihara. Moreover，the creep equations under triaxial stress condition have been deduced from the modified Nishihara model，and each parameter of the equations has been achieved by fitting the experiment results. The prediction by the model is in agreement with the experimental data is experimentally validated. The research shows that the triaxial creep equations from modified Nishihara model can reflect effectually the creep properties of coal containing gas.
