Kravchenko Tatiana Ivanovna RussiaVladimirVladimir state University named after Alexander G. and Nicholas G. Stoletovs, 600000, Vladimir, str. Gorky, 87head of laboratories of the department «Mechanics of materials»к.т.н.tatyana.ttkachenko@yandex.ru Author's articles Assessment of Critical Loads due to the Negative Form of Technogenic Relief