This FLAC 8.1 tutorial demonstrates how to update the soil densities and the effective stresses in the embankment.
This tutorial will guide you through how to create a fractured Synthetic Rock Mass (SRM) specimen.
This tutorial will show how to paint zone data onto an imported geometric surface in FLAC3D.
This paper presents analytical solutions to estimate at any scale the fracture density variability associated to stochastic Discrete Fracture Networks. These analytical solutions are based upon the assumption that each fracture in the network is an independent event. Analytical solutions are developed for any kind of fracture density indicators.
Injection testing conducted in 2017 and 2019 at the Frontier Observatory for Research in Geothermal Energy site in Utah evaluated flowback as an alternative to prolonged shut-in periods to infer closure stress, formation compressibility, and formation permeability. Flowback analyses yielded lower inferred closure stresses than traditional shut-in methods and indicated high formation compressibility, suggesting an extensive fractured system. Numerical simulations showed rebound pressure is not necessarily the lower bound of minimum principal stress. Stiffness changes can be identified as depletion transitions from hydraulic to natural fractures. The advantage if flowback is reduced time to closure.
Numerical models are now used routinely to predict ground-water inflows to both surface and underground mines and to help design dewatering systems.