ABSTRACT
It is important to accurately evaluate the load acting on a shield tunnel lining for the economical and rational design of shield tunnel lining. In Japan, the load calculated by Terzaghi’s formula or overburden load is generally adopted for the design of tunnel segments. But some previous field measurements have shown that the actual load acting on the shield tunnel lining could be much smaller than that adopted for the design in the case of good ground conditions.
In this study, field measurements at two shield tunnel construction sites in gravel were carried out, and the load acting on the shield tunnel lining was evaluated by analyzing the field data to establish the rational design of the shield tunnel segments. The way of treating the self-weight of segments in the design was also investigated.
