- Date
- 10 June 2021
- Time
This event has now ended
Overview
Using 3 techniques to sink a 55m deep Shaft in the Thames
The overall Tideway scheme is a significant new combined sewage storage and transfer system that shall 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, shall run from Acton in west London to Abbey Mills Pumping Station in east London; controlling the most polluting combined sewer overflows (CSOs) by intercepting, storing and conveying the discharges, which currently flow into the river. Victoria Embankment Foreshore site is one of 24 Thames Tideway Tunnel sites. Located in the heart of London on the River Thames, it is one of the most visible sites creating a vital connection to our new 25km tunnel.
The presentation will detail the methodology used to sink the 55m deep 15m diameter drop shaft using pre-cast concrete segments, including caisson & underpinning sinking methodologies, followed by sprayed concrete lining (SCL) to formation level. The presenters will also briefly highlight the subsequent shaft activities including the installation of the shaft permanent base slab, waterproofing and cast-insitu concrete shaft secondary lining hydraulic jumpform system.
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