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The work is aimed at determining the construction effect of a running tunnel on the stress-strain state change of the surrounding soil massif, in particular, on the development of a sediment basin on the Earth’s surface. The soil massif is defined by an elastoplastic material according to the Drucker - Prager model. The paper proposes two numerical methods for solving the problem: with and without the use of contact elements for modeling the construction gap between the tunnel shell and the soil mass caused by the tunnel boring mechanized complex operation. The proposed methods were applied in the construction of Kalininsko-Solntsevskaya line tunnels of the Moscow subway. A comparative analysis of the results obtained with geodetic monitoring of the Earth’s surface slump in the construction influence zone has been carried out.

Numerical methodology for determining the soil mass surface slump, caused by the tunnel construction with the geodetic monitoring results comparison