Bases on the pore medium theory, the paper discuses the water dissipated phenomena mechanism under suppress stress, puts forward the concept of the pore water dissipated exponent through test.

• 以孔隙介质理论为基础，讨论了在压应力作用下孔隙水消散现象的机理，提出了孔隙水消散指数的概念，并通过实验获得了压应力与孔隙水消散指数的关系。