PREDICTING LAND-SURFACE DEFORMATIONS DURING THE CONSTRUCTION OF UNDERGROUND FACILITIES OF COMPLEX SPATIAL CONFIGURATION

The article presents methodical approaches to the computation of the land-surface deformations during the construction of underground facilities of complex spatial configuration. Considered methodical approaches are based on numerical methods of analysis. The article presents the computation concept of stress-strain state of rock mass and land-surface deformations during the construction of underground facilities of complex spatial configuration, which is based on the representation of the computational domain in the form of global and local models. The presented concept has been tested in the context of underground facility consisting of three single-bore connected tunnels.