ReSSA+ includes significant modifications of ReSSA(3.0). FHWA-HIF-17-004 (Download) and Leshchinsky et al. (2017) (Download) provide all the details including instructive example problems. ReSSA+ allows for a convenient two-stage analysis which may lead to optimal design of geosynthetic-reinforced complex structure. It does not distinguish between ‘slopes’ and ‘walls’ but rather uses a unified limit state approach which uses established limit equilibrium analysis
MSEW+ is an interactive program used to analyze MSE walls with metallic or geosynthetic reinforcement. It includes ASD and LRFD methodologies following AASHTO 2020, 2017, 2007-2010, 2002, and 1998 as well as NCMA 1997. Analysis methodologies include Simplified AASHTO, Simplified Stiffness, and Coherent Mass Gravity.
GeoCoPS (3.0) is an interactive program for the design of geosynthetic tubes. For a given problem, the geometry of the tube and the circumferential and longitudinal required strength of the encapsulating geosynthetic are produced. The computations account for reduction factors related to seam strength, durability, creep and installation damage. Results are obtained by solving a differential equation subjected to design constraints.
A COMPLETE GEOTECHNICAL DEFORMATION AND STABILITY ANALYSES
OptumG2 is a comprehensive finite element program for geotechnical stability and deformation analyses.
Its modern graphical user interface ensures an intuitive and efficient workflow. The computational core builds on state-of-the-art numerical algorithms that lead to an unprecedented efficiency and robustness – independent of the complexity of the model.