Stepney Green Shaft

highly complex construction was required for the project's success

ByrneLooby designed the diaphragm wall and construction methodology and sequencing for Crossrail’s Stepney Green shaft.

The 6 storey deep shaft is one of the largest of the Crossrail project and was required to provide access to the tunnelling site below.

The shaft is highly complex to construct not just due to its size but also to its rectangular shape as well as tightly constrained site location. We provided the design of the 48m deep, 1.2m thick diaphragm wall with a perimeter of 140m for the shaft.

Thereafter, working closely with our client Dragados-Sisk JV, we devised the value engineered construction methodology and sequencing along with the internal support system for the deep shaft in order to speed up construction time and improve buildability.

Scope of Project

  • One of the largest shafts of the Crossrail Project.
  • The shaft is required for access to Crossrail’s Eastern Running tunnels.
  • Designed the diaphragm wall for the shaft along with the temporary lifting cages.
  • Value Engineered the construction Sequence to speed up construction time and increase buildability.

Project Photos