Crossrail

The projects

Controlled Demolition

Wall Structures:

As part of the New Station works, Loftus Group was appointed by BBMV JV to dismantle a number of wall structures to enable the construction of the new concourse and station entrance.

This scope of works was phased over a 15-week period and involved the controlled dismantling of two separate wall structures, including one structure overhanging the Westbound District line. We designed and installed our own temporary works in order to both access the high levels and to provide a full encapsulation.

Works were carried out in both traffic hours and engineering hours due to the proximity to the London Underground lines. The wall structures were successfully dismantled two weeks ahead of schedule.

Stairs 54:

Loftus Group was appointed by BBMV JV to dismantle a concrete stairs structure to enable the construction of the new platforms for London Underground.

This scope of works was phased over a 52-hour possession. The walls and door beneath the stairs were demolished first and holes drilled into the stairs for lifting points. The stairs were to be cut at the top and bottom so a crane could remove the dismantled section through a narrow opening adjacent to the new London Underground accommodation building.

We designed and installed our own temporary works to support the stairs while we stitch-drilled and saw-cut the relevant sections. We successfully and safely removed the stairs and demolished the remaining foundation with six hours to spare.

Intumescent Paint and Fire Barriers

Intumescent Painting:

As part of the New Station works, Loftus Group was appointed by BBMV JV to fire protect the structural steel using an intumescent paint.

This scope of works was phased over a 38-week period and is still in progress. The works involved the spraying of all structural steel (new and existing) with Sherwin Williams FX6000 intumescent paint to provide a 60min and 120min fire protection. Some areas also required an architectural finish as they will remain visible when the station opens.

The works required us to encapsulate all surrounding assets while we sprayed on the intumescent paint using an airless plural sprayer. This has been quite a challenge due to the surrounding elements and the interface with the public using the rail network. However, this project has been a huge success so far.

Fire Barriers:

As part of the New Station works, Loftus Group was appointed by BBMV JV to install a fire and smoke protection barrier to segregate the emergency escape routes.

This scope of works was phased over a 26-week period and is still in progress. The works involved installing a flexible barrier around new glazing in order to contain smoke and fire in case of a fire. These works had to be carried out in both traffic hours and engineering hours, due to the location above the London Overground platforms.

Drainage

Drainage:

As part of the Urban Realm works, Loftus Group was appointed by BBMV JV to install two separate drainage systems around both the shafts that provide emergency access to and from the new Crossrail platforms.

The works were phased over a 40-week period. We designed and installed our own temporary works to support the excavations. The works included two separate road and lane closures to connect to the Thames Water system with a full reinstatement afterwards.

The drainage works also involved the supply and installation of an attenuation system with Hydrobrake. Additionally, we cored a number of large holes in the shafts to install part of the system. All works were installed within the allocated period.