Abstract
The difference between the tunnel behavior during excavataion by the mini bench method and the bench cut method is examined using the 3-dimensional finite element technique. In the excavation analysis, the sequence of construction which are excavation, support members and bench length are considered. It is recognized that the tunnel behavior by the mini bench method and the bench cut method are almost same, except leg settlement of upper half section, face squeezing and distribution of shotcrete stress.
