ABSTRACT
The relationship between the design load from a HK-80 vehicle onto the tunnel lining and tunnel depth as well as a particular design method is shown in Figure 1.
When the graph passes the point h = 0,4 m, the live load value goes down abruptly (21-26%, depending on the tunnel width). Pressure applied by a HK-80 vehicle onto 1 m3 of tunnel roof slabs with various dimensions is different even if tunnel structures have the same depth.
