Design and construction experience of deep bunkers for energy from waste projects, York

15 March, 2016 | 18:30 - 20:30

Deep waste bunkers (up to 15 metres deep) require the need for good geotechnical and geo-environmental knowledge and design.
Deep waste bunkers (up to 15 metres deep) require the need for good geotechnical and geo-environmental knowledge and design.

About this event

Energy from waste facilities, involving waste incineration, have been constructed in the UK in the last few years. For the Design Engineer and their clients the environment has been extremely challenging based upon a fast-track program and the PFI model, making early investment in the ground works strategy problematic. These structures include deep waste bunkers (up to 15 metres deep) which require good geotechnical and geo-environmental knowledge and design.

John has been involved in nine schemes in the UK to date, all in different ground conditions. This presentation considers four projects, of open excavation with de-pressurisation; vertical support with water exclusion strategy; a vertical support with controlled dewatering and double internal propping with depressurisation.

Ground conditions and the support strategy for excavations are reviewed and the importance of the ground and groundwater understanding and control is discussed. The case studies presented show a great level of success in a difficult program and contractual environment. They demonstrate the need for engagement in good quality ground investigation together with confidence and trust between engineer, specialist ground contractors and the civil contractor.

Speaker

John Judge, Associate Director and Principal Geotechnical Consultant, Tata Steel Projects

Organised by the Yorkshire Geotechnical Group. This event is kindly sponsored by Tata.

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