Performed Tunnel improvement I2T3 Demonstrators

Performed demonstrators and a final summary report compiling major results, technology potential, limitations, and considerations for implementation for task T5.2 and corresponding sub-tasks. Each demonstrator will have a dedicated chapter and demonstrator leaders will be editors for reporting of associated work, results discussion and analysis. Summary of major findings and proposal for design strategy for tunnelling strenghtening by using fibre reinforced concrete will be reported. All partners to contribute with their work.