The HS2 rail network is one of the UK’s most significant infrastructure projects, designed to improve high-speed rail connectivity while integrating sustainable construction practices. The Burton Green Tunnel is a 700-metre-long structure running through Warwickshire, designed using a ‘top-down’ construction method. This approach allows the tunnel’s side walls and roof to be built at ground level before excavation, ultimately ensuring a seamless integration with the surrounding landscape.
WJ was engaged to provide passive groundwater relief solutions to support excavation and ensure groundwater pressures remained stable during the tunnel’s construction.
The construction method required managing groundwater effectively along the entire tunnel alignment. WJ was tasked with designing and installing a passive relief system to control groundwater pressures throughout excavation and base construction. Key challenges included:
WJ’s tailored solutions for this project included:
The successful implementation of WJ’s passive relief system played a crucial role in maintaining the project schedule and ensuring safe excavation conditions. Our ability to provide real-time groundwater data allowed the client to optimise the construction of the tunnel base slab, avoiding costly delays.
At WJ, we don’t just manage water—we provide tailored solutions that enable sustainable and efficient construction. The HS2 Burton Green Tunnel project demonstrates our ability to integrate groundwater control strategies with innovative monitoring technologies, ensuring seamless project execution.
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