In the webinar Bentley will showcase formulation and visualization of Jointed Rock model, extension of the Jointed Rock model with an overall Mohr-Coulomb criterion and tunneling direction, rock bolts array with respect to the orientation of the joint plane.
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Rock mass is often assumed as isotropic material to facilitate the study of tunnel-rock interaction. The assumption, however, might no longer hold for stratified rock, where major planes of discontinuity at random orientations, could as well exhibit different strength and deformability than in its intact form. As a result, tunnel lining and support design becomes just more complex, for being dependent on not just the anisotropic behaviors, but also the tunnel excavation axis with respect to the orientation of the stratification planes; and as for the latter, a switch to 3D analysis is sometimes necessary.
Of a wide range of constitutive soil models in PLAXIS, the Jointed Rock model, as formulated with transverse anisotropy elastic law together with a Mohr-Coulomb plasticity law in the predefined directions, is a suitable choice for the application.
Presenters:
Xing-Cheng Lin, Manager, User Success Virtuosity, a Bentley Company
Ja Mie How, Product Sales Engineer, Virtuosity, a Bentley Company
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