EXPERIMENTAL LABORATORY TESTING OF PHYSICAL AND MECHANICAL PROPERTIES OF SOILS IN THE PREPARATION OF PROJECT DOCUMENTATION

Abstract

The purpose of this work is to examine the physical and mechanical properties of soils in the preparation of project documentation. A laboratory testing of the physical and mechanical properties of soils located on the construction site of an apartment building at: Kirov region, Vyatskopolyansky district, village. Krasnaya Polyana, Druzhba str., 1. Methods. Laboratory work was carried out on a mixture of loam, sand, in the roof layer with small construction debris, sandy loam brown, hard, plastic interlayers; sandy loam brown, plastic. The geological structure of the survey area was carried out with the help of engineering - geological wells to a depth of 8.0 m. Upper quaternary alluvial deposits (a2III), represented by sandy loam hard and plastic, overlain by technogenic deposits (t IV), were uncovered. Results And Discussion. Alluvial deposits (a2III) are exposed under man-made deposits at a depth of 0.7-1.0 m (abs. OTM. 64.38 – 64.83 m) and are represented by: brown sandy loam, hard (EGE-2*), plastic interlayers, with loam interlayers up to 0.2 m.. Layer thickness is 2.1-2.5 m; brown sandy loam, plastic (EGE-3), with layers of dusty sand up to 0.2 m. Uncovered power: is 4.8 – 4.9 m. Conclusions. According to CP** 11-105-97, part II of the territory is assigned to section I-A-2-seasonally (annually) flooded. According to a set of factors, the complexity category of engineering-geological conditions is defined as II (average) (CP 47.13330.2012 [10] ADJ. A). The standard depth of seasonal freezing for sandy loam is 2.01 m. According to the degree of frost heaviness, sandy loams are hard (EGE-2), characterized as weakly porous. Technogenic soils (EGE-1), taking into account the increase in humidity in the pre-winter period, are classified as weakly porous.