Andun were appointed by Kilnbridge Construction Ltd to design temporary works and sequence demolition for  multiple stages of the £200m Whitechapel Crossrail project.

This blog summarises the different aspects of our involvement and the key challenges that had to be addressed in the design of temporary works and  demolition sequence of an access and protection deck.

Challenges of Removing 240T Concrete 

A constraint for this demolition was the most efficient way to remove 240 tonnes of concrete as quickly as possible given space restrictions. The solution we proposed that was adopted by Kilnbridge, was the use of a C-Hook designed in-house by Andun.

Part of this project was the task of convincing stakeholders of the merits of the C-Hook as the right engineering solution.

To demonstrate the design capabilities, we produced a 3-D print of the hook (pictured below). We found giving stakeholders the opportunity to visualise and hold the design was a key factor in securing approval for the use of this innovation.

The hook was capable of freeing up and lifting 10 tonnes of concrete at a time. The removal of the concrete was completed without issues, faster compared to alternative solutions that were explored.

The benefits of the C-Hook were appreciated by the stakeholder and was included industry press coverage of the demolition.

Our work on this project is complete, we look forward to seeing the first trains active and carrying passengers on the Elizabeth line.

Whitechapel Crossrail Temporary Works & Demolition Sequence Summary

The C-Hook was just one aspect of the work we completed for this project. Other elements we were contracted to work on included;

• Removal of plate girder & steel bridge (D123 + WBB)
• Canopy removal and station demolition works
• Demolition of masonry arches EL11 and EL12 within the station confines
• demolition of D124B, a steel plate girder deck