Ultimate limit state design for linings of bored tunnels: Tübbingbemessung im Grenzzustand der Tragfähigkeit beim Schildvortrieb

According to modern design codes, such as the Eurocode 7, also Soil Retaining structures should be designed according to Ultimate Limit State analysis, see [1]. From an economic point of view, the design of the lining, i.e. the thickness and reinforcement of it, would be optimal if the loading during construction is less critical than the...

Ten Years of bored tunnels in the Netherlands: Part I: Geotechnical issues

Ten years have passed since in 1997 for the first time construction of bored tunnels in the Netherlands soft soil was undertaken. Before that date essentially only immersed tunnels and cut-and-cover tunnels were constructed in the Netherlands. The first two bored tunnels were Pilot Projects, the 2nd Heinenoord tunnel and the Botlek Rail tunnel....

Structural design of linings for bored tunnels in soft ground

Soil Retaining Structures: Development of models for structural analysis

The topic of this thesis is the development of models for the structural analysis of soil retaining structures. The soil retaining structures being looked at are; block revetments, flexible retaining walls and bored tunnels in soft soil. Within this context typical structural behavior of these structures is discussed too. The emphasis within the...

Monitoring pilot projects on bored tunnelling: The Second Heinenoord Tunnel and the Botlek Rail Tunnel

Two pilot projects for bored tunnelling in soft soil have been undertaken in the Netherlands. The monitoring was commissioned under the authority of the Centre for Underground Construction (COB). A description of the research related to the Second Heinenoord Tunnel and the Botlek Rail Tunnel will be given. The Second Heinenoord Tunnel has...