Reliability-based alarm thresholds for excavation of shotcrete-supported rock tunnels

Spross, J., Gasch, T. and Johansson, F. Reliability-based alarm thresholds for excavation of shotcrete-supported rock tunnels. Georisk: Assessment and Management of Risk for Engineered Systems and Geohazards, Latest Articles. doi.org/10.1080/17499518.2022.2046789.

The storage of hydrogen gas in underground lined rock caverns (LRCs) enables the implementation of the first fossil-free steelmaking process to meet the large demand for crude steel. Predicting the response of rock mass is important to ensure that gas leakage due to rupture of the steel lining does not occur. In this paper, the suitability of analytical and numerical models to estimate the maximum cavern wall tangential strain under high internal pressure is studied.