Course: Shield tunneling in soft soils

Over the last decade worldwide shield tunnelling has assumed large proportions and knowledge has leaped along with it. Understanding of critical mechanisms has increased and so has computing capability. This has resulted in more advanced design methods. Today shield tunnels are being built in areas with difficult soil conditions while restrictions exist to minimize settlements. This three-day course raises the awareness of the key risks involved in a wide range of shield tunneling aspects. As shield tunneling is one of the most integrated construction methods in the civil engineering practice, it is vital to have a good understanding of all disciplines involved. This course provides good insight in the state of practice of the design methods for the different issues in shield tunneling. The steppingstone is a risk driven design method to come to grips with tunneling projects. Topics that will be adressed are:

• soil investigation;
• risk management;
• lining, backfill grouting, face stability;
• tunnel boring machines;
• ground freezing, soil improvement;
• ground movements, observational method, monitoring;
• vibration hindrance;
• re-use of excavated soil and logistics.

The fourth day of the course is an optional day for an excursion to the Amsterdam Metro line extension project and a shield tunneling project in Rotterdam. For futher information you can look here.