| Abstract [eng] |
The till fine soil composition, structure, and properties exhibit significant variability, making it a subject of extensive research. This study aims to analyze the composition, physical, and mechanical properties of the Middle Pleistocene terrain forming till fine soil and identify the primary factors influencing its properties. The research findings will help correlate the indicators that cause changes in the soil's properties, leading to a better understanding of its overall behavior. The research determined that soil with the studied granulometric composition could be categorized according to the most prominent classifications of P. K. Robertson (2009, 2016) into various soil behavior types. These classifications aid in assessing soil behavior under mechanical impact, regardless of its determined name. Additionally, empirical equations were employed to describe and establish relationships between the physical and mechanical properties of the soil. The mechanical properties could be evaluated based on the ratio of natural moisture content, clay fraction content, and cone resistance. The natural moisture content exerting the most significant influence on the oedometric modulus of deformations. Moreover, the angle of internal friction is primarily influenced by clay fraction content and cone resistance. For the first time, the overconsolidation ratio of the Middle Pleistocene terrain forming till fine soil was evaluated and based on laboratory studies. The investigated soil can be classified as lightly overconsolidated (OCR < 4), allowing the application of corresponding mechanical principles. |
