Research Article

Performance Investigation of Tunnel Lining with Cavities around Surrounding Rocks

Table 1

Cases in groups 1 and 2.

Group12

Case1-11-21-31-41-52-12-22-32-42-5
d (m)00.50.50.50.500.10.51.02.0
(m)00.51.02.04.002.02.02.02.0
Model