The deformation and stability mechanisms of pelitic soft rock drift under rich water condition are more complicated than those of the general ones.

• 富水条件下泥质软岩巷道破坏及稳定性机制比一般软岩巷道更复杂；不仅需要采用多种复合支护控制围岩非线性大变形；还必须进一步控制其泥化进程.