Joseph Gallagher are pleased to announce that our tunnel boring machine broke through at the reception shaft in South Bermondsey yesterday, completing its 187m long drive.
The TCS2160, an ISEKI Unclemole Super was launched from a 7.5m ID shaft with a depth of 17m below ground level and proved the ideal choice for the mixed ground conditions that were encountered.
This was a challenging project due to the tight nature of the site footprint and a Network Rail embankment running along the eastern boundary of the shaft. Fortunately, we were able to call upon the collaborative power of the Joseph Gallagher Group of companies ensuring everything fitted and could maximise all areas within the site compound.
NRC provided the cranes for the excavation works and site lifting, with SPA and ISEKI providing the specialist equipment, plant and the TBM microtunnelling machine.
New 33kV feeder cables will be installed in the tunnel from the National Grid disconnector at New Cross Grid to the new Rotherhithe Switching Station, located in the South Bermondsey Substation.
The Joseph Gallagher Team onsite are working on behalf of BAM Nuttall as part a larger Network Rail project to electrify the railway, making significant improvements to Britain’s rail network and allowing for faster, greener and more reliable train journeys.