Viscoelastic Rheological Model for Interlayered Rock Mass and Its Numerical Analysis

Abstract:

A study was made of the interlayered rock mass composed of greenschist and marble;two viscoelastic rheological models were built with axial uniaxial loading orientation perpendicular or parallel to bedding plane.The numerical analysis of uniaxial compression creep test for interlayered rock mass was done by using finite difference program FLAC3D, and these two viscoealstic rheological models were verified by the comparison between theoretical value and numerical value of axial strain.Lots of influencing factors such as the volumetric content,depth,amount and interval of marble interlayer were taken into account in the numerical analysis.The research results show that the numerical value matches the theoretical value well,therefore,these two viscoelastic rheological models are available and reasonable.The error between the numerical value and theoretical value will increase or drecrease regularly with the change of the depth,amount and interval of marble interlayer.