The failures that occurred in early June in the center of Riga now occur everywhere. Residents of Riga send to the editor photos with collapses, which have not yet fallen cars, but they still have. Such collapses are hidden under paving stones, asphalt, and indeed they can fail not only cars, but also people.
Tuesday began posting photos from failures in the areas of streets Vienibas gatve, Satiksmes near Tornakalns cemetery. There are a lot of photos and some of the pits have already been discovered by special utilities and fenced. At the moment, active work is underway to identify such failures.
Experts believe that such situations in Riga will occur with periodic regularity and there will be more and more of them. This is due to a special geological structure and sand-clay rocks. As it turned out, under the upper solid layer of sand and clay lies gypsum and limestone. Upon contact with water, carbonate rocks instantly dissolve, thereby creating voids. And they collapse with a small impact from the outside, just this impact can be a car.