Abstract: The creep of rock under the action of seepage has brought many adverse effects on the long-term stability of engineering.A kind of rock seepage-creep coupling test device is developed,which can realize confining pressure loading,axial loading and void hydraulic loading.It is used to conduct rock seepage-creep coupling test to discuss the creep properties of rock under the action of seepage.The results showed that: Under the condition of constant hydraulic pressure and confining pressure,the influences of axial compression on elastic deformation of specimen decrease with axial compression increasing.The axial instantaneous deformation increases with axial compression increasing.The seepage discharge decreases with the increase of axial compression.Under the condition of constant axial compression and confining pressure,the seepage discharge and creep deformation increase with the hydraulic pressure increasing.The seepage discharge has a certain effect on the creep of specimen,and the creep can also affect the seepage discharge.

Key words: Coal rock seepage, Coal rock creep, Coupling, Test device