A distinctive feature of the formation and construction properties of loess subsidence soils in Mongolia

Abstract

A characteristic feature of loess-like subsiding soils common in Mongolia is relatively low humidity in natural conditions, high micro and macro porosity, relatively high content of simple salts and other types of natural binders, forming crystallization and cementation structural bonds, which, when soaked, completely and partially are destroyed. Also, in some cases, they are not included in the category of subsiding soils according to the norms and standards of other countries, but when moistened, they cause excessive subsidence, so it becomes necessary to classify it by indirect signs. These characteristics are subject to the general pattern of formation of loess soils, along with these engineering-geological and construction properties of subsidence of soils are highly dependent on regional features. This article presents the results and conclusions of a study conducted to determine the regional features of loess clayey soils in Mongolia