Presentation outline

This presentation will give an overview of the different soft ground tunnelling techniques used on the Thames Tideway Project. The main focus will be on the west section of the Thames Tideway Tunnel in London, where an earth pressure balance tunnel boring machine and sprayed concrete lining methods were employed. The talk will explore specific characteristics of the project and some of the challenges the team faced.

The overall Tideway scheme is a significant new combined sewage storage and transfer system that will help protect the River Thames by tackling the problem of overflows from the capital’s Victorian sewers. The main tunnel, a major component of the system, runs from Acton in west London to Abbey Mills Pumping Station in east London; controlling the most polluting combined sewer overflows by intercepting, storing and conveying the discharges, which currently flow into the river.

Speaker

Christina Trigle is a civil engineer working in London and a member of the British Tunnelling Society Young Members (BTSym). She graduated from Imperial College London and has spent most of her career to date delivering the Thames Tideway Tunnel project, working for BAM Nuttall. She is currently seconded to Ramboll, working within their tunnels and underground space team.

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