THE EXAMPLES OF CALCULATIONS FOR DETERMINING THE DESIGN MOISTURE CONTENT OF EARTHWORK SOIL IN ARID CLIMATE CONDITIONS

Abstract

Abstract.  The article is devoted to the study of methods for calculating the calculated moisture content of the soil of the roadbed in an arid climate typical of the desert and semi-desert zones of Kazakhstan. The features of soil conditions affecting the construction of roads are considered, including moisture deficiency, seasonal changes in soil properties and the influence of climatic factors on the bearing capacity of the roadbed. Examples of calculations are given, including the determination of the depth of soil freezing, the calculated humidity of the working layer for various types of humidification, as well as the calculation of the elevation of the pavement surface above the levels of groundwater and surface waters. The conclusions emphasize the need to take into account climatic and hydrogeological features in the design and construction of roads to ensure their durability and quality. When building roads in desert and semi-desert areas, the conditions for the construction of the roadbed are somewhat different from the usual ones. When compacting the soil layers in this zone, there is often a shortage of air humidity in the soil deposits, and seasonal changes lead to excessive moisture.

Keywords: arid zone, soil moisture, accounting period, compaction coefficient, the density of the soil skeleton, standard seal, frost heaving soil.