Prediction of surface deformations, caused by shallow service tunnels construction activities in Moscow
V.A. Ilyichev, P.A. Konovalov, N.S. Nikiforova, M.M. Tupikov
Abstract
In recent years Moscow has seen construction of shallow (up to 8.0 m deep) service 3-4 m dia tunnels for major underground complexes and renovation of existing tunnel networks. In order to preserve the existing buildings, utility lines, pedestrian walks and roads prediction of surface deformations is required.
Seven most typical geological profiles, based on data from Mosgorgeotrest (1998) and from V.A. Ilyichev, P.A. Konovalov and N.S. Nikoforova (2004), have been presented for preliminary prediction of ground deformations.
Correction coefficients to the available empirical surface settlements method for predicting settlements, caused by large-diameter deep (Metro) tunnels, proposed by Peck, R. B. (1969), Burland J.B., Standing J.R. and Jardine F.M. , (2001), have been proposed based on field survey and numeric simulation modeling.
For shallow (up to 8.0 m deep) 3-4 m dia service tunnels correction coefficients have been found.