Phase 1 of the renewal works took place at the Robertsbridge portal, where a new track system was installed with a length of approximately 30 m. The slab track system is a reinforced concrete slab, with embedded sleeper type Cemex 1503. This track was designed by Schembera Consulting ZT, and installed in a 9 day line closure in October 2022. 

The 2^nd phase of the works took place at the Battle portal at a length of 230 m. The Pact slab was replaced with a slab track using Delkor Alt1 rail fastenings, which were embedded in reinforced concrete. The design of this track was reviewed by Schembera Consulting ZT as a CAT 3 checker. 

Just outside London’s King’s Cross rail station, there are 3 tunnels, the so-called Gasworks tunnels. The eastern tunnel (East Bore) was activated again after several decades, during which it was not in operation for railways. The tracks in this tunnel were designed as a slab track, System SlabTrack Austria (STA). Only the crossovers were made in the LVT standard track system. Transitions to the tracks in ballast were arranged outside the two tunnel portals.

Schembera Consulting ZT was acting as consultant for the general planning of the slab track STA and the LVT crossover. In addition, we were also responsible for checking the slab track design, switches and crossings, track slabs with derailment protection, the track slabs with softer bearings, the load distribution plate in the area of the tunnel portals, and transition areas to the ballasted track.