Results of the study of physical and mechanical properties of rock formations using a special technique

Abstract

Hard rocks are widely used in construction. They often serve as a natural foundation for various structures, form the slopes of pits, canals, trenches and quarries. There are numerous examples of tunnels and galleries, as well as various industrial and special structures, being constructed in rocky rocks. Hard rocks are widely used as building and facing stone, in the preparation of crushed stone for concrete, road surfaces, ballast and other construction purposes. Engineering and geological assessment of rocky rocks should be based on the study of their mineralogical composition, structure, texture, bedding conditions, fracturing and weathering, i.e. on geological and petrographic features. Additional data for such an assessment of rocks should be the results of laboratory tests for temporary compressive strength, softening, porosity, water saturation, water absorption, frost resistance and abrasion. In some cases, all this is insufficient to assess the resistance of hard rocks to weathering agents. Therefore, in such cases, it becomes necessary to study rocks in laboratory conditions using a special method, which involves studying not only the general construction properties of rocks, but also their resistance to the effects of physical and chemical weathering factors. The results of such studies, conducted for one of the construction sites, are given below.