Monitoring a deep excavation Cofferdam at the PROTOS energy-from-waste facility

Overview

This talk presents the monitoring and performance assessment of a 12m deep excavation for a waste storage bunker at the PROTOS energy-from-waste facility in Chester, UK.

The excavation was supported by a complex combi-wall cofferdam with internal bracing and a reinforced concrete capping beam. Real-time monitoring of wall deflections, bracing loads, and water levels provided critical insights into the system's performance, informing construction decisions and mitigating risks.

The findings highlight how high structural stiffness, deep embedment, and effective groundwater control contributed to the safe and efficient delivery of the project in challenging ground conditions.

This event is planned as an in-person event, and will be streamed live.

Following the lecture, there will be a networking session, with drinks at the ICE Kendal's bar sponsored by Ward & Burke.

Ward and Burke Construction

Ward and Burke was formed in 2001 and is an Engineering Organisation delivering and operating infrastructure, primarily sanitary services infrastructure, on a Turnkey Design, Build and Operate basis.

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