Research Article

Distribution Features of the Minimum Rock Cover Thickness of the Surrounding Rock Self-Stability of the Metro Tunnel in the Soil-Rock Dualistic Stratum

Table 10

The GSEA ratio of metro tunnel under different buried depths.

H (m)6912151821242730

Station tunnel (%)49.265.076.484.190.794.398.099.0100.0
Running tunel (%)26.340.557.071.687.593.996.698.599.3