Excavations cover a broad range of geotechnical engineering from building construction to open pit mining and can
be the basis for a wide range of analyses, depending on the questions being asked. Common to all issues in this
category are the release of locked in stresses when the soil or rock is unloaded. In addition, the presence of water
in the ground or free water on the surface can greatly change the excavation behaviour from a seepage and stability
The integration in GeoStudio provides a wide range of approaches for dealing with excavations.
Insitu stresses and pore-water pressure conditions can be established such that upon removal of the ground, rebound
displacements can be computed. Steady state or transient pore-water flow systems can be simulated and incorporated
into dewatering and stability evaluations. Detailed stress paths can be monitored during these transient changes in
pore-water pressure. In an advanced analysis, a slope failure in a pit can be accounted for as a result of a sudden
collapse of unstable ground. In addition, a dynamic earthquake analysis can be carried out to assess the potential for
generation of excess pore-water pressures in the ground or plastic deformation due to stress-redistribution.