08.02.2022 | 1800-1930

The Engineering Geology of the Thames Tideway Tunnel and its Effects on Construction Performance

Speakers: Tim Newman.

Past event: Please note this event information is displayed for informational purposes only.

Introduction

This is a joint meeting of the BGA and the Engineering Group of the Geological Society (EGGS).

This on-line event is free to attend, but advance booking is required

Please use the booking link below, and you will receive the viewing link.

Synopsis

The Thames Tideway Tunnel is a 25 km long stormwater storage tunnel, up to 65m deep beneath central London and incorporating twenty shafts and ten smaller diameter connection tunnels. It has been constructed through the entire London Basin geological sequence which has had a significant influence on its design.

The large-scale underground structures excavated during construction have facilitated observations of the in-situ geology and revealed sedimentary characteristics that could not be fully evident in disturbed samples from ground investigation boreholes and laboratory tests. These have led to significant improvements in understanding the in-situ groundmass behaviour of several strata within the sequence and their impact on the performance of different construction techniques.

Speakers

  • Tim Newman

    Jacobs

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