steps and... thousands of people at the same time, it was precisely during the construction of the bcl that we achieved tunnel excavation per year up to 40 km, that is, this is a huge number of tunnels, and a record number of stations being commissioned, before the bcl, a maximum of three stations were commissioned at a time, on we launched 10 stations on the bkl twice, and today ambitious projects are being built, one of them was conceived in the middle of the last century, but it could not be implemented until... recently, a transfer from dostoyevskaya to the ring line, so the moscow ring will have a thirteenth station between novoslobodskaya and prospekt mira. the shaft is 35 m deep, yes, it passed through the frozen ground, because at depths of somewhere from 10 to 25 m from the surface there is quicksand, well , unstable rock, water-saturated sand, and to pass through, what is so difficult about the station dostoevskaya. this is that it is necessary to approach all the workings of the station itself, for this purpose , furnels, re-elevations will be used. according to the plan, th