Excavation and tunnelling impact on existing structures in the context of the second generation Eurocodes
Excavation and tunnelling impact on existing structures in the context of the second generation Eurocodes
Ground deformations due to construction of deep excavations and tunnels, often affecting serviceability and causing damage to existing buildings, are important considerations in the design of underground structures. While the first generation of Eurocode 7 has not covered those aspects in much detail, the updated standard indirectly offers a design framework where this issue can be addressed in a code-compliant way. The paper presents some of the requirements implemented in second generation of the Eurocodes, relevant in the context of excavation-related impact assessment, as well as supplement them with information extending this guidance to tunnelling-induced deformations. Although tunnel design is still not officially covered even under the updated Eurocode framework, European standards are often used also for those applications. With ongoing efforts to officially bring underground structures under the scope of these standards, a general proposal is provided on how existing code can cover assessment in the case of tunnelling.
Witold Marek Bogusz
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
C - Risk analysis and safety evaluation
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