Research Progress on Unloading Creep Test of Fractured Rock Mass 

Xin Wang, Haifei Jiang 

School of Civil Engineering, Chongqing Jiaotong University, Chongqing, 400074, China 

Abstract: The results of the research on fractured rock mass test and constitutive model are mainly described. Domestic scholars have carried out a lot of research on rock failure test and rock creep test including uniaxial and triaxial compression tests, and considered different in the test. The influence of factors such as crack inclination angle, crack length and rock bridge length, but consider the creep test about these factors is relatively less than normal. Many scholars have established a large number of rock nonlinear creep models through various theories, but these models still have shortcomings, and it is impossible to establish a constitutive model describing the whole stage of creep of different fractured rock masses.

Keywords: Fractured rock mass; Destruction test; Creep test; Constitutive model