Jointly organised by ICE Bahrain and Bahrain Society of Engineers, the event will introduce the core principles of microtunnelling before examining why pipe flotation can still occur even when depth, overburden and buoyancy checks appear sufficient at the design stage. Drawing on real‑world construction experience, it will explore how vertical uplift can exceed the intended annulus gap and lead to alignment deviations with long‑term operational implications.
Attendees will gain insight into the mechanisms that enable uplift, with a particular focus on hydraulically driven ground degradation at the tunnel crown and the conditions that allow progressive void formation above the pipe. The session will also outline practical mitigation measures that can be applied during construction to reduce the likelihood of uplift and manage its impact should it occur.
This in‑person technical session is designed for professionals involved in planning, designing or delivering microtunnelled infrastructure and will provide a clear, accessible introduction to construction‑stage behaviour and associated risks.