The “Wugeisha Expo 2020" Tunnel Boring Machine (TMB) made its entrance into the future “Dubai Investment Park” station completing excavation of the 2.5 km tunnel that connects the Nakheel’s Al Furjan area to Dubai Investments Park - The Green Community, at a depth of between 12.5 and 36 metres.
For the excavation, a 9.66-metre diameter, 100-metre long TBM has been used. The TBM has completed tunnel excavation in approximately seven months, advancing an average of 15 metres a day.
Tunnel construction has included the installation of a total of 1,450 rings, made up of seven segments each. Those ring segments have the traditional reinforcement replaced with steel fibre, which reduces assembly times and minimises problems such as rust.
In the coming months other works will be completed, such as construction of the second phase of the foundation, disassembly of auxiliary facilities and assembly of electricity and ventilation facilities.