Tóm tắt:

In the building process of large-sized underground constructions, especially underground constructions with big height, using top advance and bench method has many advantages in tunnelling. In the paper, analytical solutions are achieved for circular tunnels, which are driven in full face and ignored the characters of bedding and joint networks rocks. This paper introduces assessment the stability of large-sized tunnels driven by top advance and bench in bedding and joint networks rock.