In the course of preparing the subgrade in the locomotive shed area so that the tracks could later be laid and the floor slab concreted, it became apparent that the rear wall of the ring channel in the upper area no longer had sufficient load-bearing capacity. Therefore, it had to be strengthened, just like the foundations. Unlike the foundations, however, the wall consists entirely of clinker brickwork. The loose rows were removed. Then the reinforcement was laid and the formwork prepared. Now we are waiting for frost-free weather to start the concreting work.