Abstract: The construction influence zone of Beijing metro tunnel and the influence range are difficult to be distributed. As a result, the ground transverse settlement groove data of 903 tunnel projects of 13 metro lines in Beijing area are analyzed. The fitting parameters of Peck formula of settlement groove of clay stratum and sandy-cobble strata induced by shield tunneling and mining excavation are statistically analyzed, and the distribution shape, related statistics and correlation with tunnel buried depth of ground loss rate and width parameter are obtained. The research results show that: (1) The mathematical statistical results of ground loss rate and width parameter can guide the division of metro tunnel influence zone and determination of influence range in Beijing and other cities with similar ground conditions. (2) The construction method and stratum conditions are the important factors affecting the stratum deformation around the metro tunnel, and the relevant researches should be paid attention to in surface deformation control. (3) It is suggested to carry out in-depth analysis and research on the fitting of settlement groove in various regions, so as to provide scientific reference for the division and determination of metro tunnel influence zone.

Key words: metro tunnel, ground transverse deformation, settlement groove, prediction parameter